Mercedes M-Class W163

since 1997 of release

Repair and car operation

Pumping of brake system

After carrying out repair of brake system during which opening of its hydraulic path in the last was made air which then should be completely removed can get. A sign of presence at working contours of brake system of air is softness of a course of a brake pedal.

If air gets to system as a result of violation of its tightness, it is necessary to eliminate a cause of defect previously.

At air hit in separately taken wheel cylinder it is enough to carry out pumping of only corresponding support. At air hit to the system highway as a result of excessive lowering of level of liquid in the GTTs tank, no less than after removal/installation of the last to be pumped over all system. Told treats as well a case of performance of procedures of the service demanding dismantle of the hydromodulator.

Pumping without use of the special device

PERFORMANCE ORDER

At a full oporozhneniye of any of GTTs tank chambers (for example, as a result of violation of tightness any of paths or if liquid was not added to the tank after performance of procedures of service) podsasyvayemy air to the highway inevitably in the pump ABS, - in this case pumping should be made in conditions HUNDRED with use of the special device. Check level in the tank of brake liquid, in case of need make the corresponding adjustment (see. Head of the Power supply system and production of the fulfilled gases). During procedure performance liquid in the GTTs tank should not fall excessively, - periodically make correction of its level by addition fresh! Remove a dustproof cap from the pumping gate from a support of the corresponding brake mechanism. Pull on the gate a piece of the transparent hose, which free end lower in the drain capacity which has been partially filled with brake liquid not to allow an air podsasyvaniye during pumping. By means of a cap key carefully weaken the gate. Ask the assistant to squeeze out against the stop several times a pedal of a foot brake and then to fix it in the bottom situation. Open the gate, - brake liquid will start to follow in drain capacity. When weakening a pressure close the gate and repeat procedure. Continue pumping until liquid extorted from a contour completely will not be released from air bubbles / from a hose fresh liquid (in case of performance of its replacement) will not start to be pushed out, - do not forget to check and, as required, to correct liquid level in the GTTs tank. Having finished pumping, tighten the gate, remove a hose and plant into place a dustproof cap. In case of need, operating in a similar manner, pump over supports of the remained brake mechanisms, - do not forget to add liquid to the GTTs tank periodically. In summary modify liquid level in the GTTs tank (see. Head of the Power supply system and production of the fulfilled gases) also check serviceability of functioning of brake system and coupling.

Pumping with use of the special device

Connection of the device should be made in strict accordance with instructions of his manufacturers, - it is necessary to charge performance of procedure to specialists of car-care center.

Pumping of brake system by means of the special device