E46 series BMW 3 - BMW 3 cars (E46) Identification numbers of the car Acquisition of spare parts Technology of service, tool and workplace equipment Poddomkrachivaniye and towage Engine start from the auxiliary power supply Checks of readiness of the car to operation Automobile himikaliya, oils and greasings Diagnostics of malfunctions Governing bodies and operation receptions Governing bodies and devices Filling Keys, uniform lock and anticreeping system Security сигнализация* Window regulators The hatch with elevating and movable крышкой* Seats Adjustment of provision of a steering wheel Mirrors Safety systems Lock of ignition and engine start Parking brake Manual box of gear shifting (RKPP) Automatic transmission (AT) * Lever of the switch of indexes of turn / light signal Screen wipers and stekloomyvatel Heater of back glass Tempostat (automatic equipment of maintenance of the set speed) * The alarm system of emergency rapprochement at a parking (PDC) * System of automatic stabilization of stability with a regulator of a torque of the ASC+T/engine System of dynamic control of stability of DSC* The monitoring system of pressure of air in tires (RDC) * Lighting and light devices Heater, ventilation and conditioner of air of salon Salon equipment Running in Features of driving of the car Catalytic converter Anti-blocking system of brakes (ABS) Disk brakes Brake system Luggage compartments Automobile телефон* Readjustment of headlights Cowl Unlocking of a cover of the refueling hatch manually Drive of an elevating and movable cover of the hatch вручную* + Current leaving and service + Engine + Systems of cooling, heating + Power supply systems, injection and release + engine Electric equipment + RKPP and transmission line + Automatic transmission + Coupling and power shafts + Brake system + Suspension bracket and steering + Body + Onboard electric equipment + electric equipment Schemes
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Diagnostics of malfunctions In this Section the simplest scheme of clarification of the reasons of malfunctions and the refusals occurring in knots and systems of a vehicle is offered. Refusals and their possible reasons are broken into groups on the basis of the relation to certain components or car systems, such as the engine, cooling system, etc., besides, in the text references to Chapters and Sections concerning these problems are given.
Remember that the successful conclusion of search of causes of defect at all is not the black magic available to only skilled professional mechanics, and is defined by a combination of a certain knowledge and a patient, systematic approach to problem research. To move always follows from simple to difficult, to lead up each check to the logic end and to try not to pass the obvious facts – everyone can forget to fill fuel in a fuel tank or to leave for the night included lighting devices.
And at last, always it is necessary to try to make an accurate picture of development of malfunction and to undertake the corresponding steps on recurrence prevention. If refusal of electric equipment was the result of violation of quality of contact, check at the same time a condition of all other contacts and electric sockets of system. If the same safety lock several times in a row continues to fuse, there is no sense in its further replacement – it is necessary to try to find out a cause of failure. Remember that failure of a minor component can be a sign of violation of functioning of more important knot or the whole system.
Diagnostics of electronic systems E46 – general information about diagnostic devices
Into structure of the electronic equipment of the car enter:
System of electronic control by the petrol engine Siemens MS 42.0 System of electronic control by the diesel engine Bosch 3.0 System of anti-blocking of brakes of ABS dynamic system of stabilization of stability built in ABS – DSC3 on the early E46 models antiprobuksovochny system – (Teves ABS/ASC Mark20ET) System of ensuring additional safety of SRS MRS2, MRS3 AT with electronic control of EGS/AGS A5S 360R Siemens AGS 20
Electronic system of xenon headlights
1 Check of serviceability of functioning of components of systems of injection and decrease in toxicity of the fulfilled gases is made by means of a universal digital measuring instrument (multimeter). Use of a digital measuring instrument preferably for several reasons. First, on analog devices it is rather difficult (sometimes, it is impossible), to define result of the indication to within the 100-th and thousand shares while at inspection of the contours including in the structure electronic components, such accuracy takes on special significance.
The second, the reason that fact is not less important that the internal contour of a digital multimeter, has rather high impedance (internal resistance of the device makes 10 megohms). As the voltmeter is connected to a checked chain in parallel, accuracy of measurement by that is higher, than the smaller current will pass through actually device. This factor is not essential at measurement of rather high values of tension (9 ÷12 B), however there is defining at diagnostics of elements giving out low-voltage signals, such, as, for example, a l-probe where it is a question of measurement of shares of volt. |
2 special diagnostic scanners (Pointer) or testers (Retriever) are applied To diagnostics of electronic systems of the engine, automatic transmission, ABS, SRS with a certain cartridge, a universal cable and the socket. Besides, it is possible to apply the expensive specialized automobile diagnostic computer which has been specially developed for complete diagnostics of the majority of systems of modern cars to this purpose (for example, Launch HiTech firm ADC2000), or the ordinary computer with a set of the interface devices. 3 In principle, reading written down in memory of system of self-diagnostics of codes of malfunctions can be made also on the indicator “check the engine” on a control panel (address to Head engine Electric equipment). 4 Scanner only reads out the malfunctions brought memory and clears memory of malfunctions. Besides the scanner supports only the ISO protocol. The tester in addition can make active and show the current data and supports the SAE and ISO protocols.
All cartridges for a tester can be used and in the scanner. Thus functions will be limited only to reading and memory cleaning.
Firm ToolRama, Inc devices can be applied to diagnostics, for example. (3500 NW Boca Raton Blvd., Boca Raton, Florida, 33431, USA 1 877 866 5726-561 750 4511-561 338 8447 FAX):
R000 tester with cartridge Т051D, the P000 scanner with cartridge Т041, universal cable of N000, N001 socket.
For the majority of cars of release since 1996 supporting the SAE/ISO 9141 OBD II protocol OBD II cartridge carrying out the following functions can be used:
• Reading and removal of codes of malfunctions of OBD II. Reflection of results of tests of the sensor of oxygen. • Continuous control of systems of ignition, injection and components. • Reflection of the list of the current data and the fixed unstable refusals:
Absolute pressure in the inlet pipeline; Tension of the sensor of oxygen; Temperature of cooling liquid of the engine; Settlement loading of the engine; Speed of the car; Quality of fuel; Consumption of air (on weight); Ignition advancing; Provision of a butterfly valve; Temperature of soaked-up air.
In addition to codes of malfunctions of "P0", the device also reflects expanded codes of "P1" for the models Acura, Audi, BMW, Chrysler, Dodge, FORD, Geo, GM, Honda, Hyundai, Infinity, Kia, Lexus, Lincoln, Mercury, Mazda, Mercedes, Mitsubishi, Nissan, Porsche, Saturn, SEAT, Skoda, Subaru, Suzuki, Toyota, Volvo, VW. |
Recently, at diagnostics of control systems by the engine of modern cars such reading-out devices, as manual scanners of type, for example, Actron Scantool became absolutely irreplaceable or AutoXray XP240 |
Features of the specialized automobile diagnostic ADC2000 device:
· The built-in 4-channel oscilloscope with standard preset for 19 sensors. · The analyzer of system of ignition for check primary and secondary chains (with tension to 100кВ) on systems with the distributor or separate coils of ignition – with control of time of burning, peak value of tension, a corner of an advancing of ignition, a current, and turns. · A two-channel multimeter with digital and graphic data presentation on tension (150В), frequency (1100кГц), to a current (150А). · The built-in scanner for the main systems on cars: VAG, MB, BMW, Volvo, Toyota/Lexus, Mitsubishi, Nissan, Honda, Mazda, GM, Ford, Chrysler, Daewoo, Hyundai, Kia, Samsung, and also on cars supporting the OBD-II protocol. · Cartridges are not required – you can execute updating of programs of the device, having downloaded necessary updatings from the Internet. · Programnoye providing for communication with the personal computer.
Information on use of these devices contains in enclosed documents. About these devices you can get acquainted with details on sites www.programatools.com, www.lasn.com.
For carrying out diagnostics we recommend to you to address for the qualified help of experts HUNDRED.
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The diagnostic socket of system of onboard diagnostics of OBD II is located under the dashboard |
Contacts of the diagnostic socket for used protocols:
ISO 9141–2 Contacts 4, 5, 7, 15, 16 J1850 PWM Contacts 2, 4, 5, 10, 16 J1850 VPW Contacts 2, 4, 5, 16 (without 10)
The ISO 9141-2 protocol (for Europe and Asia) is identified by existence of contact 7 and absence of contacts 2 and/or 10 on the diagnostic socket.
The SAE J1850 VPW protocols (Variable Pulse Width Modulation) – General Motors – or SAE J1850 PWM (Pulse Width Modulation) – the American Ford – are identified by absence of contact 7.
All three protocols of data exchange work through a standard cable of OBD-II J1962.
conclusion No. Appointment 1 It is set by the producer 2 Bus Line +, SAE J1850 3 It is set by the producer 4 Connection with the case 5 Case – an alarm conclusion 6 It is set by the producer (CAN high level, J–2284) 7 Line K, ISO 9141 8 It is set by the producer 9 It is set by the producer 10 Bus Line – SAE J1850 11 It is set by the producer 12 It is set by the producer 13 It is set by the producer 14 It is set by the producer (CAN Low level, J–2284) 15 Line L, ISO 9141 16 Plus of the battery through a safety lock. Energized at any position of the lock of ignition Codes of malfunctions of OBD II system are given in Specifications to Head engine Electric equipment.
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The 20-contact diagnostic BMW socket is located under a cowl of an impellent compartment at the left |
Purpose of conclusions
Characteristic |
Value |
data |
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data |
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data |
Engine
If the engine is not started, it is necessary to analyse a situation. That the engine in general could be started, should be satisfied two main conditions. In cylinders should arrive fuel – an air mix, and on a spark plug the spark should be developed. Therefore, first, it is necessary to check, whether fuel moves. As thus it is necessary to operate, it is described in Head of the Power supply system, injection and release.
To define, whether the spark is developed, it is necessary to turn out candles, to insert into tips and separately to put to weight. Thus a tip or a cable of ignition do not hold hands, and use well isolated nippers. Ask the assistant to start the engine. If the spark does not slip, define malfunction being guided by Head engine Electric equipment.
The engine is not turned in attempts of its start
1 corrosion of plugs of the battery Takes place or weakened fastening of tips of wires on them. Check a condition of plugs and tips. Tighten terminal clips, if necessary remove corrosion traces. 2 the battery Is discharged or faulty. If tips of wires are found pure and reliably fixed on battery plugs, turn the ignition key in the situation ON, then include head headlights and/or windscreen cleaners. If this electric equipment does not function, the battery is discharged. 3 Transmission it is inexact it is established in the situation "R" (AT) or on neutral transfer (RKPP), or coupling is not squeezed completely out. 4 conducting in a chain of system of start Is torn off or weakened fastening of wires on plugs. Check a condition of wires, plugs and electric sockets of the battery, the traction relay of a starter and the ignition lock. 5 Gear wheel of a starter is jammed in a gear wreath of a flywheel. On the models equipped with RKPP, establish it on transfer and, ceilings manually the car, turn that its engine. At the first possibility remove a starter and check a condition of a gear wheel and a gear wreath of a flywheel. 6 the traction relay of a starter (Head engine Electric equipment) Is faulty. 7 the starter (Head engine Electric equipment) Is faulty. 8 the ignition lock Is faulty. |
The engine is turned, but not started
1 start is Incorrectly made
Order of start of the petrol engine:
Cock the parking brake, squeeze out a coupling pedal. On models from AT press and hold a brake pedal. On AT establish the selector in the situation "R" or "N". Do not give some gas. Turn the ignition key and hold, while the engine will not be started. If the engine during 20 with is not started or at once will stop, repeat start process at half pressed pedal of gas. As soon as the engine will be started, release the ignition key.
On a frost below – 15°С and at height more than 1000 m above sea level: Start see off not less than 10 with at half pressed pedal.
Surely at once begin movement. If there is a hard frost let's to the engine work during 30 pages.
If the engine is not started, through 10 with, interrupt start and repeat it through a floor of minute.
| Some unsuccessful attempts of start in a row can damage the catalytic converter since not burned down fuel vzryvoobrazno burns down when heating in the catalytic converter. |
Only on the hot engine after start add a little gas. 2 the safety lock Is faulty:
– Electric fuel pump – Electronic system of injection Concerning check of safety locks address to Head Onboard electric equipment. 3 Empty fuel tank. 4 malfunction in system of injection of fuel Takes place. 5 the battery (the engine is turned too slowly) Is discharged. Check electric equipment functioning. 6 Korrodirovanas terminal connections of the battery or were weakened by their fastening. 7 the fuel pump (Head of the Power supply system, injection and release) Is faulty. 8 components of system of ignition (Head engine Electric equipment) Are damaged or excessively humidified. 9 spark plugs Are worn-out or faulty or the candle gap (Head engine Electric equipment) is incorrectly exposed. 10 conducting of an electric contour of system of start Is torn off or disconnected or weakened fastening of wires on plugs. 11 conducting of a contour of the coil of ignition Is torn off or disconnected or weakened fastening of wires on coil plugs (Head engine Electric equipment). 12 Too low pressure of a compression. Replace sealing laying of a head of cylinders. If necessary repair the engine.
Diesel engine:
13 start is Incorrectly made
Order of start of the turbodiesel engine:
On the cold engine and at external temperature below +8°С tighten the parking brake, squeeze out a coupling pedal. On AT establish the selector in the situation "R" or "N" – RKPP. Turn the ignition key in situation II and wait, the control lamp of preheat will not go out yet. At once after the control lamp will go out, start the engine, without giving some gas. If there are irregular flashes do not switch off a starter while the engine will not earn evenly (no more than 30 c). If the engine is not started, through a floor of minute again repeat start as it is described above.
In the course of preheat of the engine, it is not necessary to include consumers of a current (light, heating of back glass).
On the cold engine and at external temperature above +8°С, and also at the warm engine preheat is not required. The engine can be started at once. It is not necessary to give gas. 14 the safety lock Is faulty:
– Electric fuel on – соса, – Preheat systems. 15 Engine is not heated-up: check serviceability of functioning of the device of preheat. 16 On the electromagnetic locking valve there is no tension. Connect to the switch the voltmeter or a sampler on a light-emitting diode. Include ignition. The light-emitting diode should light up. Otherwise it is necessary to find break of electroconducting and to eliminate it. 17 the electromagnetic locking valve Is faulty. Check reliability of fastening of the electromagnetic switch, to check contacts. Switch on and off ignition. In the switch click should be distributed. 18 damage to the line of supply of fuel or air to lines Takes place:
a) Pipelines or hoses are mechanically damaged or littered. Clear fuel pipelines and remove air from lines and the filter. b) The fuel filter is littered. Replace filtering element. c) In the winter it is necessary to check the filter and pipelines on ice or wax existence. Put the car in heated garage, add in gasoline system. d) Ventilation of a tank or the mesh filter of a toplivozabornik is littered. Clean. 19 adjustment of the beginning of supply of fuel Is brought down. Check, make adjustment. 20 nozzles Are faulty. Check. Unscrew consistently cap nuts – at an otvorachivaniye of a nut of the faulty cylinder turns of the engine will not fall. 21 the fuel pump of a high pressure (TNVD) Is faulty. Establish for check new, or obviously serviceable TNVD. 22 Too low pressure of a compression. Replace sealing laying of a head of cylinders. If necessary repair the engine. |
The starter functions without an engine provorachivaniye
1 the starter gear wheel Is jammed. Remove a starter (Head engine Electric equipment) and check its condition. 2 a teeth of a gear wheel of a starter or a flywheel wreath Are worn-out or damaged. |
Start of the cold engine is complicated
1 the battery Is discharged or insufficiently charged. 2 malfunction of components of a power supply system or electric equipment (Head of the Power supply system, injection and release and engine Electric equipment) Takes place. 3 Paraffin in the filter of thin cleaning of the diesel engine. Replace a filter element. Fill winter fuel, or dilute with gasoline. 4 glow plugs of the diesel engine Are faulty. |
Start of the hot engine is complicated
Gearing of a starter occurs is too noisy or with difficulty
1 a teeth of a gear wheel of a starter or a flywheel wreath Are worn-out or damaged. 2 bolts of fastening of a starter Are lost or weakened effort of their tightening. |
The engine is started, but immediately глохнет
1 electroconducting Is faulty or weakened fastening of wires on coil or generator plugs. 2 malfunction of components of a power supply system or electric equipment (Head of the Power supply system, injection and release and engine Electric equipment) Takes place. 3 depression losses through prokladochny surfaces of the inlet pipeline or the block of injection of fuel Take place. Make sure of reliability of an inhaling of fixing bolts/nuts, check the fact and quality of fastening on the unions on the inlet pipeline of all vacuum hoses. Check a condition of hoses and correctness of their connection (to the unions). |
Stability of operation of the engine on single turns is broken
1 depression losses Take place. Make sure of reliability of an inhaling of fixing bolts/nuts, check the fact and quality of fastening on the unions on the inlet pipeline of all vacuum hoses. Hear to the working engine by means of a stethoscope or a piece of a fuel hose. Existence of a hissing sound will allow to reveal a source of "leakage" of vacuum. It is possible to use for check by solution of soap water not less effectively. 2 malfunction of components of a power supply system or electric equipment (Head of the Power supply system, injection and release and engine Electric equipment) Takes place. 3 the valve of system of operated ventilation of a case (Head the Engine) Is blocked. 4 the air filter (Head of the Power supply system, injection and release) Is blocked. 5 Fuel pump does not provide giving of enough of fuel to injectors of system of injection (Head of the Power supply system, injection and release). 6 leaks through laying of a head of cylinders Take place. Make measurement of kompressionny pressure in engine cylinders. 7 working ledges of cams of a camshaft (Head the Engine) Are worn-out.
Diesel engine:
8 quality of connections of fuel hoses on TNVD and the fuel filter Is broken. Replace fuel hoses, fix them collars, tighten screws of angular connections. 9 it is Mechanically damaged or weakened TNVD fastening. Check fastening. 10 Are mixed by junctions of the returnable pipeline and the pipeline of supply of fuel. Connections put on the places. The screw of connection of the returnable pipeline has “OUT” marking. 11 damage to the line of supply of fuel Takes place:
a) Pipelines or hoses are mechanically damaged or littered. Clear fuel pipelines. b) The fuel filter is littered. Replace filtering element. c) In the winter it is necessary to check the filter and pipelines on ice or wax existence. Put the car in heated garage, add in gasoline system. d) Ventilation of a tank or the mesh filter of a toplivozabornik is littered. Clean. 12 adjustment of the beginning of supply of fuel Is brought down. Check, make adjustment. 13 nozzles Are faulty. Check. Unscrew consistently cap nuts – at an otvorachivaniye of a nut of the faulty cylinder turns of the engine will not fall. 14 the fuel pump of a high pressure (TNVD) Is faulty. Establish for check new, or obviously serviceable TNVD. |
Ignition admissions take place at operation of the engine on single turns
Ignition admissions take place at car movement on transfer
Engine глохнет
The engine does not develop full capacity
1 malfunction of components of a power supply system or electric equipment (Head of the Power supply system, injection and release and engine Electric equipment) Takes place. 2 the air purifier Is littered. To clean or replace. 3 spark plugs Are faulty or the candle gap (Head the Current leaving and service) is incorrectly exposed. 4 the ignition coil (Head engine Electric equipment) Is faulty. 5 there does not correspond to requirements AT liquid level (Head Automatic transmission). 6 coupling (Head Coupling and power shafts) Revolves. 7 the fuel filter Is blocked and/or dirt/moisture got to a power supply system (Head of the Power supply system, injection and release). 8 fuel not that grade Is filled. Fill in in a tank fuel with the demanded octane number. 9 Insufficient or non-uniform on cylinders kompressionny pressure. Make the compression measurement which analysis of results allows to reveal existence of leakages of valves and/or violation of tightness of laying of a head of cylinders (Head the Engine).
In addition for the diesel engine
10 the air purifier Is littered. Clean or replace 11 Non-uniform supply of TNVD fuel on cylinders. Adjust on the heated-up engine. 12 the moment of the beginning of supply of TNVD fuel is Incorrectly established. Establish. 13 the fuel filter or TNVD (nozzle) Is littered. Wash out the preliminary filter, replace an element of the filter of thin cleaning, clean a spray or replace the pump (nozzle). 14 adjustment of the maximum frequency of rotation of a cranked shaft Is broken. |
There are cottons in system of an admission or shots in release system
At movement with acceleration or uphill there are detonation sounds
Kalilny ignition (the engine continues to work after ignition switching off) takes place
1 idling turns (Head the Engine) are Excessively high. 2 malfunction of components of a power supply system or electric equipment (Head engine Electric equipment) Takes place. 3 the working temperature of the engine Is excessive. The possible reasons of this violation can be decrease in level of a cooler (The head of System of cooling, heating), failure of the thermostat, blocking of a radiator or malfunction of the water pump (The head of System of cooling, heating). |
The diesel engine smokes
1 Black smoke:
a) The air purifier is polluted. Wash out and fill with fresh oil or replace an element. b) Inappropriate fuel is applied. Wash out a tank and replace fuel. c) The moment of the beginning of giving of TNVD is incorrectly established. 2 Dark blue smoke:
a) Oil burning in the combustion chamber owing to wear of piston rings, high level of oil in an air purifier, wear of epiploons in covers of a turbokompressor, formation of thinnesses in laying between a block case and a turbokompressor. Repair the engine, establish normal level of oil, replace epiploons, tighten bolts of fastening of a turbokompressor or replace laying. b) Fuel to one of nozzles does not move. Check on heating of final branch pipes of a collector. c) Bad dispersion of fuel by a nozzle because of malfunction of the valve or spray break. Grind in the valve or replace a nozzle. 3 White or brown smoke:
a) Low temperature in cooling system. Check the thermostat. b) Bad work of nozzles owing to wear or spray break. Replace a spray. |
Engine electric equipment
The battery does not "hold" a charge
1 the driving belt of the generator Is worn-out or damaged, or adjustment of its tension (Head engine Electric equipment) is broken. 2 level of electrolit Is insufficient or the battery (Head engine Electric equipment) is strongly discharged. 3 corrosion of plugs of the battery Takes place or weakened fastening of tips of wires on them (Head engine Electric equipment). 4 Generator does not provide a demanded current of a charge (Head engine Electric equipment). 5 It is torn off or electroconducting of a charging contour is in any other manner damaged or weakened fastening of wires on plugs (Head engine Electric equipment). 6 Short circuit of electroconducting creates continuous leakage of a current developed by the battery on weight (address to Head Electric equipment of the engine and to electric equipment schemes). 7 internal defect of the battery Takes place. |
The control lamp of ignition does not die away at increase in turns
1 the driving belt Is weakened. Check a natyazhitel of a maple belt. 2 Damage of the obgonny coupling (only turbodiesel). Remove the generator and turn a power shaft of the generator to the left. If the working surface of a pulley does not rotate, damage, as a rule, in the obgonny coupling. 3 Damage of a regulator of the tension/generator. Disconnect a wire (D +) from a reverse side of the generator and include ignition. If now the control lamp does not light up, malfunction, as a rule, in a regulator of tension or in the generator. 4 Wear of brushes. Visually check brushes, if necessary replace. 5 Damage of a regulator. Check, if necessary replace. 6 Damage of the generator. Check, if necessary replace. 7 Damage of a wire between the generator and a tension regulator. Disconnect a dark blue wire at contact 12 shtekerny connections Т32а and at the dashboard block. If now the control lamp does not light up, the wire of D + has connection with weight. Replace a plait. 8 Damage of the block of the dashboard. If after a detachment of a dark blue wire from shtekerny connection Т32а at the included ignition the control lamp lights up, malfunction, as a rule, in the dashboard block. |
The control lamp of ignition does not light up at ignition key turn in the situation "ON" (at ignition inclusion)
The control lamp of a charge burns after ignition switching off
1 Plusovye diodes have short circuit. Check diodes, replace a diode payment
Starter
If the starter does not turn, at first it is necessary to check, that on the plug 50 traction relays at least 10 V.Esli's necessary tension tension was lower than this value, it is necessary to check the wires entering into a contour of a current of a starter according to the scheme. Whether works a starter at full tension of the battery, it is possible to check as follows:
– Not including transfers, include ignition. – To Peremknita of the starter plug 30 and 50 a wire of section at least 4 mm2, address also to the Section Removal, installation and check of the traction relay of a starter.
If the starter works faultlessly, the cause of defect should be looked for in wires to a starter. If the starter does not earn, it should be checked in the removed condition.
Check condition: In places of connection of a wire should be well fixed and should not be oxidized. |
The starter does not rotate at turning on of the lock of ignition
1 the battery Is discharged. Charge the battery. To 2 Peremknita of the starter plug 30 and 50: The starter rotates. Break of a wire 50 to the ignition lock, is faulty the starter switch. Eliminate break, replace defective details. 3 Break of a cable or the weight socket, the battery is discharged. Check cables and battery sockets, measure tension of the battery, if necessary charge. 4 currents Insufficient passing owing to the weakened or oxidized sockets. Clear poles and battery plugs, check connections between the battery, a starter and weight. 5 there is no tension on the plug 50 traction relays. Wire break, the switch of a starter is faulty. |
The starter rotates slowly and does not turn the crankshaft
1 Category of the battery. Charge the battery. 2 summer oil Is filled in. Fill in all-weather oil. 3 currents Insufficient passing owing to the weakened or oxidized sockets. Clear poles and battery plugs, check connections between the battery, a starter and weight. 4 Coal brushes do not adjoin to a collector, jam in directing, are worn-out, broken, greasy or polluted. Check brushes, clear or replace. Check the directing. 5 Insufficient distance between brushes and a collector. Replace brushes and clear directing brushes. 6 Collector in grooves or scorched and was made oily. Process a collector or replace an anchor. 7 there is no tension on the plug 50 (minute 8 In). Check the switch of a starter or the traction relay. 8 the bearing Is broken. Check the bearing, if necessary replace. 9 the traction relay Is faulty. Replace the traction relay. |
The starter seizes and rotates the engine breakthroughs
1 the gear wheel drive Is faulty. Replace a gear wheel drive. 2 Gear wheel is polluted. Clear a gear wheel. 3 the gear wreath of a flywheel Is faulty. Process a gear wreath if it is required, replace a flywheel. |
The gear wheel of a starter does not depart from a wreath
1 Drive of a gear wheel or carving are polluted or damaged. Clear or replace a gear wheel drive. 2 the traction relay Is faulty. Replace the traction relay. 3 Returnable spring weakened or became torn. Replace a returnable spring. |
The starter continues to work after an ignition key otpuskaniye
1 Traction relay jammed, is not disconnected. At once switch off ignition, replace the traction relay. 2 the ignition lock is not disconnected. At once disconnect the battery, replace the ignition lock. |
Power supply system
Fuel consumption is excessive
Leakages of fuel take place and/or there is a gasoline smell
The engine is not started
1 At starter inclusion the electric fuel pump does not work (is not audible noise from work). Slightly knock on the pump case to release jammed detail. Check, whether tension is put to the pump. Check serviceability of a safety lock. Check electric contacts on good conductivity. 2 the relay of the fuel pump Is faulty. Check the relay. 3 Zaliplis valves of injectors. Check injectors, if necessary replace. Check tension giving on injectors. For this purpose расстыкуйте socket of injectors. Attach a diode control lamp to a wire and include a starter. The control lamp should blink. 4 there is no signal from sensors of the moment of ignition or the sensor of turns of the engine. Check electric wires. Poll memory of malfunctions. 5 On a control panel position of the AT selector is not displayed, the indicator of a charge blinks or burns constantly. The code of malfunction 11 (the sensor switch of level of oil is damaged or punched a safety lock 30 on 7.5А) registers in the block of memory of a control panel. Replace a safety lock or the sensor of level of oil (12 611 433 596). 6 Are damaged, littered or fuel pipelines are not tight, there are defects of hoses. 7 the fuel filter Is littered. 8 Existence of ice or wax in the filter or pipelines of the diesel engine. 9 ventilation of a fuel tank Is hammered, the filter in a tank is littered. 10 nozzles of the diesel engine Are damaged. Unscrew in turn cap nuts and check, whether the corresponding cylinder works. |
The cold engine is started badly, works unstably
1 Contents WITH does not correspond to requirements. Check the contents WITH and idling. 2 the temperature sensor Is faulty. Check the sensor of temperature of cooling liquid / soaked-up air. 3 Pressure of fuel does not correspond to demanded value. Check pressure of fuel. |
The warm engine is started badly, works unstably
The system of an admission of air is not tight. Check inlet system. For this purpose leave the engine to idle and cover places of consolidations and connection on an inlet path with gasoline. If the number of turns increases by short time, eliminate not tight places.
| Pairs of gasoline are poisonous, do not inhale them. |
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The engine works with interruptions
1 Electric connections to the fuel pump interrupt from time to time. Check a condition of shtekerny connections and sockets of electric wires of the fuel pump, a measuring instrument of a stream of air and the relay of the fuel pump. Check a safety lock and places of contacts on the relay of the fuel pump. Clear contacts, if necessary replace. 2 Poor qualities of fuel, formation of steam jams. Fill qualitative fuel. 3 Too low volume of supply of fuel. Check productivity of the pump. 4 the fuel filter Is faulty. Replace the fuel filter. 5 the fuel pump Is faulty. Check the fuel pump. 6 injectors Are faulty. Check injectors. 7 the sensor of provisions of a butterfly valve Is faulty. Check the sensor of provisions of a butterfly valve. 8 Weak fastening of fuel hoses to TNVD and the fuel filter of the diesel engine. |
The engine works with interruptions in work at transitional modes and an idling mode
1 Negermetichn system of an admission of air. Check connections of inlet system. Start the engine and grease with gasoline of a place of contact and connection in a soaking-up path. If engine turns quickly increase, eliminate a leakage. 2 idling adjustment Is incorrect. Check an idling regulator, the sensor of provisions of a butterfly valve, a lambda adjustment. 3 Sensor of full loading is faulty or incorrectly adjusted. Check the butterfly valve sensor. |
The hot engine is not started
1 Incorrect adjustment of the contents WITH. Check the contents WITH and idling. 2 Too high pressure in fuel system. Check pressure of fuel, if necessary replace a pressure regulator. 3 It is littered or will bend the returnable pipeline between a regulator of pressure and a fuel tank. Clean or replace the pipeline. 4 the sensor of temperature of the engine Is faulty. Check the temperature sensor. 5 Negermetichns power supply system. Make visual survey of all connections in the field of the engine and the electric fuel pump. Tighten all connections. 6 Negermetichns system of an admission of air. Check all connections of inlet system. |
The engine works after switching off
1 Negermetichna injectors. Check injectors. 2 the valve of an otsechka of fuel does not work At the diesel engine. |
Greasing system
The control lamp does not burn after ignition inclusion
1 the sensor of pressure of oil Is faulty. Include ignition, disconnect a wire from the sensor of pressure of oil and close on weight. If the lamp lights up, replace the sensor. 2 On the sensor tension, contacts корродированы does not move. Check electric wires and contacts. 3 Control lamp is faulty. Replace a control lamp. 4 the monitor Is faulty. Replace a monitor. |
The control lamp does not die away after engine start
Oil перегрето. Fir-trees the control lamp dies away after supply of gas, to do it is required nothing. |
The control lamp does not die away after supply of gas or lights up during movement
1 Pressure of oil the too low. Check oil level, if necessary add. Check pressure of oil. 2 Wire to the sensor of pressure of oil has short circuit on weight. Disconnect a cable from the sensor and take aside (without closing on weight), include ignition. If the lamp lights up, check a wire. 3 Sensor of pressure of oil is faulty. Replace the sensor. |
Too low pressure of oil on all turns
1 In the engine there is not enough oil. Add oil. 2 the mesh filter Is littered. Remove the case pallet, clear the mesh filter. 3 the oil pump Is worn-out. Remove the oil pump and check it, if necessary replace. 4 Damages of bearings. Remove the engine. |
Too low pressure of oil on small turns
The Reduktsionny valve залип abroach because of pollution. Remove and check the valve. |
Too high pressure of oil at number of turns is higher than 2000 rpm
The Reduktsionny valve does not open because of pollution. Remove and check the valve. |
Cooling system
Overheat
1 Not enough cooler in system (The head of System of cooling, heating). 2 the driving belt of the water pump Is worn-out or damaged or adjustment of its tension is broken. 3 internal channels of a radiator Are blocked or is polluted the front grille (The head of System of cooling, heating) (is blocked). 4 the thermostat (The head of System of cooling, heating) Is faulty. 5 fan blades (The head of System of cooling, heating) Are broken or burst. 6 the vyazkostny coupling of the fan (model 320i, 323i, 328i with the conditioner) Is faulty. Check the fan coupling: Increase turns of the heated-up engine. As soon as the temperature of liquid will reach 90-95 °C, fan turns that will be appreciable aurally will raise. 7 the index of temperature of cooling liquid Is faulty. Check the sensor. 8 the pump of cooling liquid Is faulty. Remove and check the pump. 9 does not hold pressure a radiator cover. Make cover check by pressure (address on car repair shop). |
Overcooling
External leakages of a cooler
1 hoses Are damaged or destroyed as a result of material aging or weakened fastening them on unions. Replace hoses and/or tighten collars of their fastening (The head of System of cooling, heating). 2 epiploons of the water pump Are spoiled. In this case the cooler will exude through a control opening in the pump case (The head of System of cooling, heating). 3 leaks from internal channels of a radiator or the lateral tank (ов) Take place. Professional repair of a radiator (the description of procedure of removal is provided in the Head of System of cooling, heating) is required. 4 leaks through a drain stopper of the engine (Head the Engine) or vyzhimny jams of water galleries (The head of System of cooling, heating) Take place. |
Internal leakages of a cooler
| Internal leakages of a cooler usually come to light by check of a condition of impellent oil. Examine an edge measuring щупа and internal surfaces of a cover (covers) of cylinders on existence of traces of water and oil foaming. |
1 leaks through laying of a head of cylinders Take place. Make check of system of cooling by pressure. 2 there are cracks on walls of cylinders or in head molding. For check disassemble the engine (Head the Engine). |
There are cooler losses
1 In system too much cooler (The head of System of cooling, heating) is filled. 2 Cooler boils away as a result of an engine overheat. 3 internal or external leakages of a cooler Take place. 4 the radiator cover Is faulty. Check a cover pressure. |
Cooler circulation is broken
1 the water pump does not function properly. It is simplest to make sure of functioning of the pump having pressed the top hose of a radiator at the engine working at single turns. If at an otpuskaniye of a hose the liquid push in it is felt, the pump functions regularly (The head of System of cooling, heating). 2 passableness of system of cooling Is broken. Merge a cooler, wash out system and fill it with a fresh mix (The head of System of cooling, heating). If there is such need, remove a radiator (The head of System of cooling, heating) and carry out its obratnopotochny washing. 3 the driving belt of the water pump Is worn-out or damaged or adjustment of its tension is broken. 4 the thermostat (The head of System of cooling, heating) Is jammed. |
Heater
The fan of a heater does not work
1 the safety lock of the motor of the fan Is faulty. Check a fan safety lock, if necessary replace. 2 the fan switch is faulty. Check, whether tension is put to preresistors, remove and check the fan switch. 3 the electromotor Is faulty. Check, whether tension is put to contacts of the motor of the fan at the included ignition and the closed switch of the fan. If tension is put, replace the motor. |
The fan of a heater does not work at one of steps
The preresistor is faulty. Replace a connection payment. |
The heater is not switched off by a regulator
1 the switch Is faulty. Check the switch. 2 Cables of an adjusting mixing zaslonka are damaged or badly mobile. Replace cables. |
Too low capacity of heating
1 Too low level of cooling liquid. Check level of cooling liquid, if necessary add. 2 Control unit of a heater has a heavy course, is faulty. Check the heater control unit, if necessary replace a cable. |
Noise in the field of the heater fan
1 dirt, leaves Got. Remove the fan and clean it, clear the air channel. 2 Disbalances of a krylchatka, malfunction of the bearing. Remove the fan motor, check ease of a course. |
Coupling
Coupling is not switched off (a control lever of RKPP is not transferred freely to the provision of a reverse gear and back at the pedal of coupling squeezed out to a floor)
Coupling revolves (turns of the engine raise without increase in speed of movement of the car)
1 Disk of coupling is polluted by oil or its frictional slips are wiped. Remove coupling (Head Coupling and power shafts) and check a condition of its components. 2 the coupling disk was not earned extra properly. For final extra earnings of a new disk it can be demanded from 30 to 40 normal starts of the car. 3 It is worn-out press a coupling disk/basket (Head Coupling and power shafts). |
At inclusion of coupling there is a strong vibration
1 the coupling disk Is greasy. Remove coupling (Head Coupling and power shafts) and check a condition of its components. Eliminate all revealed leaks. 2 shlitsa of a nave of a conducted disk (a coupling disk) Are worn-out. Remove coupling (Head Coupling and power shafts) and check a condition of its components. 3 the disk/basket of coupling or a flywheel Will bend press. Remove coupling (Head Coupling and power shafts) and check a condition of its components and a flywheel. |
Breakthroughs at coupling work
1 Damage of support of the engine and transmission. Check, if necessary replace. 2 Weakening of fastening of a transmission in a suspension bracket. Tighten fastening bolts. 3 Non-uniform prileganiye of a press disk. Replace a coupling basket. 4 Cranked shaft is not centered with a transmission. Check centering. |
Squeal or roar arise at complete inclusion of coupling (the pedal is released)
The coupling bearing is jammed vyzhimny. Remove coupling (Head Coupling and power shafts) and check a bearing condition. Remove all agnails and teases, and grease the bearing before installation into place. |
Squeal or roar arise at complete switching off of coupling (the pedal is squeezed out)
The pedal of coupling remains squeezed out to a floor after its otpuskaniye
The piston of the main thing or the working cylinder of coupling is jammed. Damages of hydrosystem of coupling or vyzhimny bearing. Check a condition, if necessary remove coupling components. |
Manual box of gear shifting (RKPP)
At established on neutral transfer of a check point to operating time of the engine extraneous noise take place
1 the bearing of primary shaft Is worn-out. 2 the bearing of a leading gear wheel of a conducted shaft Is damaged. 3 bearings of an intermediate shaft Are worn-out. 4 washers of adjustment axial люфта an intermediate shaft Are worn-out or damaged. |
Extraneous noise take place in any situation RKPP
1 Any of above-mentioned reasons and/or: 2 In RKPP the insufficient amount of transmission oil (its level fell) is filled in. |
Extraneous noise arise on any concrete transfer
1 a teeth of a gear wheel of this transfer Is worn-out, damaged or chopped off. 2 the synchronizer of this transfer Is worn-out or damaged. |
There are "soskakivany" check points from the highest transfer
Between a boat of a box and the engine dirt or a box got was displaced in relation to the engine. |
At gear shifting there are complications
1 it is not squeezed completely out coupling (is switched off). 2 draft of switching Is damaged, weakened its fastening or adjustment is broken. Make careful check of a condition of components, in case of need replace the defective. |
Leakages of transmission oil take place
1 In a check point the excessive amount of transmission oil is filled. In case of need merge surplus. 2 differential epiploons Need replacement. |
Automatic transmission (AT)
| In view of complexity of a design of AT complete diagnostics of its malfunctions and repair of components are inaccessible to qualification of the average amateur mechanic. At emergence of any, excellent from listed below problems of functioning of AT the car should be driven away for check and repair in a workshop of car-care center or representation office of the BMW company. |
The common problems connected with functioning of the mechanism of switching
It is possible to carry the following to number of the refusals connected with violation of adjustment of draft of switching:
a) Start of the engine is possible at provisions of transmission, distinct from "R" (Parking) and “N” (Neutral). b) Indications of the indicator of provision of transmission differ from really chosen transfer. c) The car moves at the transmission established in the situation "R". Make adjustment of draft of gear shifting. |
Transmission revolves, is switched hardly, publishes extraneous noise or does not provide car movement at installation on one of lobbies or a reverse gear
1 there is a set of the possible reasons of the problems listed in heading, however under competence of the amateur mechanic one of them – the wrong level of transmission liquid gets only. 2 Before driving away the car in a workshop of car-care center check level and a condition of transmission liquid. Modify level according to requirements of Specifications or replace liquid together with the filter. If the situation was not corrected, address for the help to experts. |
Leakages of transmission liquid take place
1 AT Liquid has dark red color. Traces of its leaks should not be confused to traces of impellent oil which can be demolished on a case of transmission by a running stream of air. 2 For identification and localization of a source of leak first of all remove from a transmission boat all traces of dirt and greasing. Use a suitable obezzhirivatel and/or make steam cleaning. Then make on the car a short trip on small speed (that traces of leak did not communicate a running stream far from its source). Stop, поддомкратьте the car and by visual survey establish a leak source. More often as those act:
a) Pallet of a case of transmission: Tighten fixing bolts and/or replace pallet laying. b) Tube of the gulf of liquid: Replace rubber consolidation in a place of an entrance of a tube in a transmission case. c) Lines of transmission liquid: Tighten shtutserny connections or replace lines. d) Ventilating tube: Transmission is overflowed and/or water got to it. |
Bridges
Extraneous noise
1 Usual road noise. To adjustment do not give in. 2 Noise of tires. Check a condition of protectors and pressure of a rating of tires. 3 bearings of wheels Are worn-out or damaged, or weakened effort of their tightening. |
Vibrations
Check a condition of bearings of wheels, serially poddomkrachivy corresponding from corners of the car and rotating a wheel in the manual. Listen thus to sounds starting with the bearing. Remove bearings and check their condition. |
Leakages of oil
Brake system
| Before coming to the final conclusion about existence of problems with brake system make sure that tires are in a satisfactory condition and are pumped up with demanded pressure, adjustment of corners of installation of forward wheels and the car is not broken is not loaded non-uniformly. |
The increased course of a pedal of a brake
The brake contour failed. Check, whether brake liquid follows. |
The pedal of a brake springs and fails
1 Air in brake system. Remove air from system. 2 Not enough liquids in the tank. Add new brake liquid, remove from system air. 3 Formation of vials of steam. It is shown, mainly, at big load of brakes. Replace brake liquid, remove air from system. |
Decrease in effect of braking, pedal fails
1 Leakage of the pipeline. Tighten connections of the pipeline or replace tubes. 2 Damage of cuffs to the main thing or working brake cylinders. Replace a cuff. In the main brake cylinder replace internal elements, if necessary replace the main cylinder 3 rubber laying Is damaged. Repair a support. |
Bad braking despite big effort of pressing of a pedal
1 Brake slips are greasy. Replace brake shoes. 2 the improper or hardened blocks Are established. Replace blocks. Establish original blocks of BMW firm. 3 the brake amplifier Is faulty. Check the brake amplifier. 4 brake shoes Are worn-out. Replace brake shoes. |
When braking the car withdraws aside
1 Pressure in tires does not correspond to the demanded. Check and modify pressure in tires. 2 Non-uniform wear of tires. Replace worn-out tires. 3 Brake shoes are greasy. Replace blocks. 4 On one axis different brake shoes are established. Replace blocks. Establish original blocks of BMW. 5 Bad condition of brake shoes. Replace blocks. 6 mines of supports Are polluted. Clear directing and landing surfaces of blocks in a support. 7 Corrosion of cylinders of brake supports. Replace a support. 8 Non-uniform wear of a brake shoe. Replace brake shoes (on both wheels). |
The brake is tightened in itself
1 the compensatory opening in the main brake cylinder Is littered. Clean the main cylinder and replace internal elements. 2 Too small gap between a driving rod and the piston of the main brake cylinder. Check a gap. |
Brakes heat up during movement
1 the compensatory opening in the main brake cylinder Is littered. Clear the main cylinder and replace internal elements. 2 Too small gap between a driving rod and the piston of the main brake cylinder. Check a gap. 3 the drosseliruyushchy opening in the special valve on the bottom Is littered. Clear the main brake cylinder, replace internal elements and brake liquid. |
Brakes shiver
1 blocks of inadequate type Are established. Replace blocks, establish original blocks of BMW. 2 Brake disk in places корродирован. Carefully grind a brake disk. 3 Brake disk has lateral palpation. A disk process or replace. |
Brake shoes do not depart from a brake disk, the wheel is hardly turned by a hand
Corrosion in cylinders of brake supports. Repair a support, probably replace. |
Non-uniform wear of blocks
1 blocks of inappropriate type Are established. Replace blocks, establish original blocks of BMW. 2 the support Is polluted. Clear support mine. 3 Heavy piston stroke. Eliminate. 4 Brake system is not tight. Check tightness of brake system. |
Wedge-shaped wear of brake shoes
1 Brake disk rotates not parallel to a support. Check surfaces of a prileganiye of a support. 2 Corrosion in supports. Eliminate pollution. 3 Piston works incorrectly. Check position of the piston. |
Scratch of brakes
1 Often reason in atmospheric influence (humidity of air). If the scratch appears after long parking at the increased humidity and then vanishes, anything it is not necessary to do. 2 blocks of inappropriate type Are established. Replace blocks, establish original blocks of BMW, cover basis plates with protivoskripny paste. 3 Brake disk rotates not parallel to a support. Check surfaces of a prileganiye of a brake support. 4 the support mine Is polluted. Clear support mine 5 Pognutas of a spring of fastening of blocks. Replace fastening springs. 6 press springs Are stretched. Replace press springs. |
Pulsation of a pedal of a brake
1 ABS in operation. Normally, the help is not required. 2 Too big lateral palpation or the admission on thickness of a brake disk. Check palpation and thickness. Process or replace a disk. 3 Brake disk rotates not parallel to a support. Check a surface of a prileganiye of a support. |
The control lamp of ABS lights up during movement
1 Too low voltage of a food (below 10 In). Check tension. Check, whether the control lamp of the generator after engine start dies away. If everything is all right, check maple a belt of a drive of the generator. 2 Damage of ABS. Check reliability of contact and existence of corrosion of accession of weight at the returnable pump (in the hydraulic block). |
Suspension bracket and steering
The car withdraws at movement in one of the parties
1 tires are pumped Non-uniformly up. 2 defect of tires Takes place. 3 suspension bracket or steering components (Head the Suspension bracket and a steering) are Excessively worn-out. 4 carrying out adjustment of corners of installation of forward wheels Is required. 5 forward brake mechanisms (Head Brake system) Are taken. |
Breakthroughs, derganye or vibrations take place
1 balancing of wheels Is broken or there was an ovality of disks. Make balancing in a shinomontazhny workshop. 2 bearings of wheels Are worn-out, weakened effort of their tightening or adjustment (Head the Suspension bracket and a steering) is broken. 3 shock-absorbers or other components of a suspension bracket (Head the Suspension bracket and a steering) Are worn-out or damaged. |
Excessive rocking of the car or "zaryvaniye" his nose on turns takes place or when braking
Too hardly the steering wheel rotates
1 liquid level Excessively fell in the tank of system of hydrostrengthening of a wheel (Head the Suspension bracket and a steering). 2 tires are pumped Incorrectly up. 3 hinges of a steering drive (Head the Suspension bracket and a steering) are Insufficiently greased. 4 adjustment of corners of installation of forward wheels Is broken. 5 Hydraulic booster does not develop the demanded capacity. |
Takes place excessive люфт a steering
The system of hydrostrengthening of a wheel does not develop due effort
Excessive wear of protectors (not in one any area) takes place
1 tires are pumped Incorrectly up. 2 balancing of wheels Is broken. Address in a shinomontazhny workshop 3 disks of wheels Are damaged. Check, in case of need make replacement. 4 suspension bracket or steering components (Head the Suspension bracket and a steering) are Excessively worn-out. |
Excessive wear of protectors on external edge takes place
1 tires are pumped Incorrectly up. 2 turns are Too sharply made. Reduce speed. 3 adjustment of corners of installation of forward wheels (excessive convergence) Is broken. Address in a workshop for carrying out professional adjustment. 4 Will bend or the suspension bracket lever (Head the Suspension bracket and a steering) is braided. |
Excessive wear of protectors on internal edge takes place
1 tires are pumped Incorrectly up. 2 adjustment of corners of installation of forward wheels (divergence) Is broken. Make adjustment in a car-care center workshop. 3 components of a steering Are damaged or weakened their fastening (Head the Suspension bracket and a steering). |
Local wear of a protector takes place
1 balancing of wheels Is broken. 2 Are damaged or погнуты disks. Check, in case of need make replacement. 3 defect of tires Takes place. |
Defects of brushes of a screen wiper
Proskalzyvaniye
1 Elastic bands are polluted. Clear elastic bands a rigid nylon brush and solution of detergent or alcohol. 2 Shabby edges of brushes, elastic bands are worn-out or broken off. Replace elastic bands. 3 Old elastic bands, the cracked surfaces. Replace elastic bands. |
In the field of cleaning the water remains gather at once to drops
The windscreen is polluted by varnish polish or oil. Clear a windscreen a pure rag with an udalitel of greasing, oil, силиконов. |
The brush clears unilaterally – in one party well, in another is not present
1 Elastic band is deformed in one party “does not overturn any more”. Establish a new elastic band. 2 Lever of a screen wiper is braided, the brush not precisely adjoins to glass. Carefully turn the lever, vertical situation will not be reached yet. |
Crude surfaces
1 Elastic band escaped from a frame. Carefully insert an elastic band into a frame. 2 Brush adjoins to glass non-uniformly as spring levels or plates are bent. Replace a brush. This malfunction first of all appears at negligent installation of a spare brush. 3 force of pressing by the lever is Too small. Slightly grease hinges of levers of a screen wiper and a spring or establish the new lever. |
Defects of tires
Strong wear of the tire on both parties of a working surface
Too low pressure in tires. |
Strong wear of the tire in the middle of a working surface, on all circle
Too high pressure in tires. |
Non-uniform wear of a protector
Static and dynamic disbalance of a wheel. Too big lateral palpation of a disk, too big люфт in bearing hinges is possible. |
Non-uniform wear in the middle of a protector
Static disbalance of a wheel. The consequence of strong vertical palpation is possible. |
Strong wear of separate places in the middle of a working surface
Blocking traces at complete braking. |
Sawtooth wear of a protector. Often together with a rupture of a fabric basis which is not visible outside
Car overload. Check an internal part of the tire on ruptures of a basis. |
Rubber uvulas at lateral edges of a protector
Wrong adjustment of corners of installation of wheels. The tire is worn-out. On back wheels also check a shock-absorber condition. |
Formation of agnails on one party of a protector of a forward wheel
Wrong adjustment of a convergence. The tire is worn-out. Frequent movement on wavy surfaces. Fast movement on turns. |
Ruptures of a cord. At first are visible only from within
Moving through sharp stones, blows of tires, etc. on high speed. |
Unilaterally worn-out working surface
1 Check disorder adjustment. 2 Damage of ABS. Check reliability of contact of connection with the case at the returnable pump (in the hydraulics block). |
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