BMW 3 series E46

Since 1998 of release

Repair and car operation



The BMW of 3 series Е46
+ Cars BMW 3 (Е46)
+ Current leaving and service
+ The engine
+ Systems of cooling, heating
+ Power supply systems, injection and release
+ Engine electric equipment
+ РКПП and трансмиссионная a line
+ Automatic transmission
- Coupling and power shafts
   - Coupling
      Removal and coupling installation
      Removal and installation of the bearing of deenergizing of coupling
      Removal of air from a coupling drive
      Removal and installation of the working cylinder of coupling
   + Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Electric equipment schemes





Removal of air from a coupling drive

Air is necessary for removing from a hydraulic drive of coupling, if the coupling pedal does not come back back or comes back with delay, coupling is badly separated and if the coupling hydrosystem was opened.

As the coupling hydrosystem works on a brake liquid, it is necessary to get acquainted with the corresponding instructions resulted in the Head Removal of air from brake system.

The brake liquid is poisonous. At all do not suck away a brake liquid a mouth or through a hose. Store a liquid in capacity casual access to which is excluded.

At removal of air without application of the special device described here, in system there can be air quantity. A sign of it is noise and correct separation of coupling. In this case it is necessary to remove urgently air from system on HUNDRED with application of the special device.


 PERFORMANCE ORDER

1 Remove the bottom cover of an impellent compartment, address to Section Removal and installation of the bottom cover of an impellent compartment.
2 Check up a brake liquid in the tank, if necessary add to mark Max, address to Section Check of levels of liquids.

3 Remove a dustproof cap from the union for air removal (the marksman on an illustration) on the working hydrocylinder. Put on the union a transparent hose.

4 Cautiously check up an union course. To opening apply накидной a key not to damage шестигранника the union.
5 Ship the free end of a hose in capacity with a brake liquid to exclude hit in air system.
6 Ask the assistant to press about 10 times a pedal of coupling and to leave its pressed.
7 In this position open the union-3, the liquid thus will start to follow. If the following liquid does not contain any more air vials, close the union.

Watch that level of a brake liquid in the tank essentially did not decrease. For this purpose add a liquid.

8 Release a pedal of coupling and again press it 10 times. Hold it in the pressed position and open the union for air removal. Repeat this process so much time, how many it is necessary that the following liquid did not contain air vials. Thus constantly add a liquid in the tank.
9 Close the union on the working hydrocylinder. Remove a hose and close the union a cap.
10 Establish the bottom cover of an impellent compartment, address to Section Removal and installation of the bottom cover of an impellent compartment.
11 Fill system with a brake liquid to mark Max.
12 Check up work of brake system and coupling.

Removal of air with device application


On HUNDRED air from a coupling drive leaves, as a rule, with application of the special device. The device creates pressure upon a brake liquid.

Pressure should not exceed 2 bar.

13 Attach the device to the tank according to the description of its manufacturer.
14 Remove the working cylinder with РКПП, address to corresponding section.

Hydraulic hose do not disconnect, otherwise it is necessary to delete air from system.

At the removed coupling it is impossible to press a coupling pedal.

15 Put on a hose the union of removal of air of the working cylinder. The free end of a hose lower in capacity with a brake liquid.

16 Hold the working cylinder of coupling so that the union has been turned upwards.

17 Open the union and let out a liquid until occurrence of air vials will stop.

Not to squeeze out a rod with the piston from the hydrocylinder, HUNDRED are applied by the adaptation with a carving by means of which the rod is fixed or moved and put forward. If such adaptation available is not present, the rod is necessary for keeping a hand. In this case the device for air removal can create only insignificant pressure and should be served by the assistant.

18 Slowly let out a rod-1 on small distance and press again against the stop into the working cylinder. Repeat this process until to stop occurrence of vials. After that close the union.
19 Establish into place the working cylinder of a drive of coupling, address to corresponding section.
20 Remove the device for air removal.
21 Fill the tank with a brake liquid to mark Max. Screw a stopper on the tank.