E46 series BMW 3

since 1998 of release

Repair and car operation

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
   Keys, uniform lock and anticreeping system
   Security сигнализация*
   Window regulators
   The hatch with elevating and movable крышкой*
   Adjustment of provision of a steering wheel
   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
   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


The monitoring system of pressure of air in tires (RDC) *

Action principle


The RDC system supervises pressure of air in tires of all four wheels and during movement. The system reports about considerable pressure drop in one or several tires.

In each wheel behind the gate there is a pressure sensor, the transmitter and the power supply. Through short intervals of time pressure measurement is made.
The obtained data are transferred on a radio channel. At a pressure deviation from norm periodicity of data transmission increases.

Near each wheel in a body there are aerials which accept signals from transmitters. The onboard processor processes arriving signals and reports about changes to the driver.

In order that the system "understood", what pressure is normal, it is necessary to check pressure in all four wheels, to compare to Specifications and if necessary to finish to norm. Then it is necessary to make active system.

This control lamp on a control panel informs you that pressure of air in tires has a deviation from norm.

System activization


1 Turn a key in situation 2.
2 Hold a key pressed until the control lamp on a control panel will not light up yellow light.
3 In some minutes after a start of motion the RDC system will remember the actual pressure of air in tires as a reference indicator by which it is necessary to be guided further.

This procedure should be repeated only after pumping of tires. In other cases the RDC system automatically joins after ignition key turn in situation 2 and operates at each trip.

At pressure drop

If pressure of air considerably falls after a while in tires (that in principle represents the normal phenomenon), the control lamp lights up yellow light.

Thereby you are offered to finish as soon as possible pressure in tires of your car to norm.

If after a while after pressure finishing to norm you are again offered to repeat this operation, it means that you incorrectly pumped up tires. Once again check pressure and compare its values to the values given in Specifications.

At a tire puncture

At a tire puncture with pressure loss the control lamp lights up red light. The sound signal in addition sounds.

In this case immediately lower speed up to a full stop of the car, avoiding thus sharp braking and sharp movements by a wheel. Replace the punctured wheel.

Provided on a case of a puncture of the tire compact колесо* (it can be used only temporarily) does not enter into the monitoring system of pressure of air in tires. Spare колесо* the identical size with other wheels established on the car, on the contrary, it is equipped with the necessary electronic means allowing a message control of pressure of air in it after installation instead of a defective wheel and activization of RDC system.

The RDC system cannot warn about a sudden rupture of a tire as a result of external influences.

For replacement of tires address on HUNDRED BMWs.


Other systems or devices which use the same radio frequency can negatively affect operability of RDC system.

During emergence of hindrances the control lamp burns with yellow light.

Yellow light of a lamp testifies also:

- about failure in system,
- about wheel installation without the corresponding electronics,
- about existence in the car together with spare колесом* also other wheels with electronics for RDC.

In such cases address on HUNDRED BMWs.