Mercedes S-class W202

1993-2000 of release

Repair and car operation

Mercedes W202
+ 1.2. The general data
+ 2. Maintenance service
+ 3. Engines
+ 4. Greasing system
+ 5. Cooling system
+ 6. Heating, ventilation
+ 7. Ignition system
+ 8. Fuel system
+ 9. Transmission
+ 10. A running gear
- 11. A steering
   11.2. The block of an inflatable pillow of safety on a steering wheel
   11.3. A steering wheel
   11.4. A steering trapeze
   11.5. Cuffs of hinges of a steering trapeze
   11.6. The pump of the hydraulic booster of a wheel
   11.7. Disorder-convergence installation
   11.8. Easily and easy
   11.9. Maintenance service of system of a steering
   11.10. Diagnostics of malfunctions of system of a steering
+ 12. Brake system
+ 13. A body
+ 14. An electric equipment
+ 14.2. Electroschemes

11.6. The pump of the hydraulic booster of a wheel

In cars with adjustment of a road gleam and (or) with automatic blocking of differential it is used тандемный the hydraulic booster pump. The tank with a liquid for hydrosystem is over the pump. At work on the hydraulic device it is necessary to observe cleanliness carefully: the slightest pollution in oil can lead to malfunctions.


1. If is available, remove soaking up air hose on the air filter over the hydraulic booster pump.
2. Open a cover of a tank of the hydraulic booster. Select hydraulic oil from a tank suitable for this purpose a syringe.
3. Unscrew an elastic hose of a high pressure (29), and also return tap (28) and stop up connection places pure заглушками. In the pump stop up also a hose of a high pressure (27).
4. A hose of return tap (26) press suitable for this purpose a clip, for example, a clamp, and unscrew it. Stop up connection заглушкой.
5. Release bolts (48) on a belt pulley, but do not unscrew them.
6. Remove клиновой a ridge belt.
7. Unscrew bolts and remove a pulley.  
8. Unscrew bolts (46), keeping the bottom bolt from below.
9. Unscrew bolts (46) and remove the pump.


1. Screw the pump on arms.
2. Tighten effort of a hand fastening of a pulley of a belt.
3. Put клиновой a ridge belt.
4. Tighten 3 bolts of a pulley клинового a belt with the moment 30 Н.м.
5. Remove заглушки and screw a hydroseeing-off with the moment nearby 30 Н.м.
6. Fill a tank with oil for hydrosystem to level about 10 mm from an upper edge. For 1 second get the engine, then stop it. Add oil in a tank, the pump should not suck in air. Correctly establish oil level.
7. Adjustment of a road gleam: the car Raise behind that wheels have not been loaded. Start the engine, allow some time to it to work, then stop. At the muffled engine correctly establish oil level. Then lower the car and load a luggage carrier with cargo about 120 kg. Start the engine, establish average turns, during 20 with leave the engine to work. Establish oil level.
8. Put soaking up air hose of the air filter. After a trial trip examine tightness of connection on the pump, if necessary, tighten sockets a little.