E46 series BMW 3
+ BMW 3 Cars (E46)
+ Current leaving and service
+ Engine
- Systems of cooling, heating
- System of cooling of the engine
Replacement of cooling liquid
Thermoswitch check
Check of system of cooling under pressure
Connection and separation of the quick disconnect coupling
Removal and thermostat installation
Removal and installation of a fan / casing of the fan
Removal and fan installation with the vyazkostny coupling
Removal and radiator installation
Removal and installation of the pump of cooling liquid
+ Heater and conditioner of air of salon
+ 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
|
Removal and thermostat installation The thermostat opens a big contour of circulation at increase of temperature of cooling liquid. If owing to damage the thermostat does not open, the engine overheats. It is possible to determine it by the index of temperature of the cooling liquid, being in an emergency zone, at that time when the radiator at the same time remains cold. The damaged thermostat can remain also open after decrease in temperature of cooling liquid. A sign of it is that the engine does not reach the working temperature and that value of temperature on the index of cooling liquid grows more slowly, than usually or heating becomes in the winter weak.
|
|
|
| The thermostat is built strongly in the case and cannot be taken out from there. In the presence of defect it is necessary to replace it together with the case. |
1 Merge cooling liquid, address to the Section Replacement of cooling liquid.
Models 320i, 323i, 328i
2 Models with the conditioner: Disconnect the fan with the vyazkostny coupling, address to the Section Removal and fan installation with the vyazkostny coupling.
3 Unscrew bolts of fastening and remove an eye in front on the engine.
Models 320d
4 Remove from the face party of the engine AGR radiator.
5 Disconnect the pipeline of cooling liquid under the thermostat case at a head of cylinders and at the holder.
7 Rasstykuytes I will corrode at the thermostat case.
8 Unscrew the case of the thermostat and remove together with sealing laying-2-.
|
| The thermostat cannot be checked usually by a way of immersion to capacity with hot water as the temperature of its opening lies above a boiling point and makes 105°С. |
|
|
|
|
|
9 Clear sealing surfaces on the case and a cover and wipe a rag moistened in alcohol.
10 Evenly fix the thermostat case with new sealing laying by the moment of 10 N • m.
|
| Do not tighten fastening bolts too strongly. |
11 in the presence of deformations replace sealing rings on quick disconnect couplings. Press wire clamps. Put on hoses, thus the coupling it should be fixed distinctly.
12 Join the socket at the thermostat case.
13 Models 320i, 323i, 328i: Fix the moment of 20 N • m an engine eye.
14 Models 320i, 323i, 328i with the conditioner: Establish the fan with the vyazkostny coupling, address to the Section Removal and fan installation with the vyazkostny coupling.
15 Models 320d: Fix the pipeline of cooling liquid under the thermostat case with the sealing laying. Fix the pipeline on the holder. Establish AGR radiator, address to the Section Removal and installation of the inlet pipeline.
16 Fill system with liquid and remove air, address to the Section Replacement of cooling liquid.
17 Start and warm up the engine. Check, whether the radiator got warm and whether the thermostat case is tight. In the presence of leakages tighten fastening bolts. |
|
|
|
