Mercedes C-Class

W203 since 2000 of release

Repair and operation of the car

+ Mercedes-Benz cars of class C (W-203)
+ Operation manual
+ Routine maintenance
+ Engine
+ Cooling system and heating
+ Power supply system and release
+ Engine electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
- Brake system
   Replacement of blocks of a forward disk brake
   Removal and installation of a forward support
   Replacement of back brake shoes
   Removal and installation of a back support
   Removal and installation of a brake disk
   Check of a brake disk
   Dual main brake cylinder
   Replacement of brake shoes of the parking brake
   Removal and installation of a cable of the drive of the parking brake
   Removal and installation of the switch of a stoplight
   Removal of air from the brake system
   Removal and installation of a brake hose
   Check of the amplifier of a brake
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Removal and installation of a back support



1. Mark with paint the provision of back wheels concerning naves. It will allow to establish at assembly the balanced wheels in their former situation. Weaken bolts of fastening of wheels before a car poddomkrachivaniye. Lift a back part of the car, put it on supports and remove back wheels.

Lifting operation and installations of the car on supports is connected with danger! Therefore before carrying out operation study Poddomkrachivaniye's Section and towage of Introduction to the management.

If the support is removed only for removal of brake shoes or a brake disk, it is not necessary to turn out the brake pipeline from a support. In this case fix a support by a wire to a suspension bracket so that the hose was not overwound and exposed to stretching.

2. Turn out a brake hose from a support as it is described in the Section Removal and installation of a brake hose.

At a vskryvaniye of a brake contour brake fluid follows. Merge it in a bottle which has to be intended only for these purposes. It is previously possible to suck away liquid from the tank by means of the special device. Observe security measures concerning brake fluid.

3. Remove brake shoes, address appropriate section.

If the support is established again, it is necessary to watch that the piston did not go out of the cylinder.

4. Turn out bolts (1) above and below and remove a support (2) from the longitudinal lever.

Big moment of an otvorachivaniye! Make sure that the car is reliably fixed on supports and the wrench costs horizontally. The specified bolts can be turned off when the car costs on wheels.



1. Fix a support by two new self-stopped bolts to the longitudinal lever. Tighten bolts the moment of 55 Nanometers.

Big moment of an inhaling! Make sure that the car is reliably fixed on supports and the dynamometer key costs horizontally. Bolts can be tightened finally when the car costs on wheels again.

2. Establish brake shoes, address appropriate section.

Do not allow hit on frictional surfaces of a brake disk and blocks of lubricant or oil.

3. Establish a brake hose, address appropriate section.

Do not allow twisting of a brake hose.
4. Remove air from the brake system, address appropriate section.

5. Establish into place back wheels so that the marks put at removal coincided. Previously grease with a thin layer of bearing lubricant the aligning wheel disk belt on a nave. Do not grease bolts of fastening of wheels. Replace rusty bolts. Wrap bolts. Lower the car on wheels and tighten bolts cross-wise the moment of 110 Nanometers.

Several times, strongly press a brake pedal until notable resistance is felt. Thus brake shoes adjoin to a disk and hold the working position.

6. Check liquid level in the tank, if necessary add liquid to the mark MAX.

Carry out reliability control:

· Whether brake hoses are fixed?
· Whether the brake hose is fixed in the holder?
· Whether unions for removal of air are tightened?
· Whether enough brake fluid is filled in?
· On the working engine check tightness. For this purpose press a brake pedal by effort of 200 - 300 N (20 – 30 kg) during 10 pages. The pedal should not weaken. Check all accessions for tightness.