Mercedes C-Class

W203 since 2000 of release

Repair and car operation

+ Mercedes-Benz Cars of a class C (W-203)
+ Operation manual
+ Routine maintenance
+ Engine
+ cooling and heating Systems
+ 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 a drive of the parking brake
   Removal and installation of the switch of a stoplight
   Air removal from brake system
   Removal and installation of a brake hose
   Check of the amplifier of a brake
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

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Replacement of back brake shoes

Brake shoes are object of control from bodies of technical supervision. Besides, they are intended for use in concrete model of the car. Apply the brake shoes recommended by the manufacturer. Such brake shoes have the corresponding marking.

If brake shoes are used again, at removal it is necessary to mark them. Shift of brake shoes from outer side on internal and on the contrary, or from the right wheel on left, is not allowed. Surely replace all brake shoes of one axis at the same time, even in case the limit of wear was reached only by one of them.



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

Operation of lifting and car installation on supports is connected with danger! Therefore before carrying out operation familiarize with Poddomkrachivaniye's Section and Introduction towage to the management.

2. Beat out a pin (1) corresponding drift (2) outside inside from a support.

Thus the clamping spring (3) jumps out.

3. Take out brake shoes back from a support.
4. If the brake shoes which again were in work are established, mark them ("internal", "external"). Thus they can be established on the former places.

At the removed support do not press a brake pedal, otherwise the piston it will be squeezed out from the case. If the piston was casually squeezed out from the case, remove a support and give it on assembly on HUNDRED.



Before installation of brake shoes check a brake as it is described in the Section Removal and installation of a forward support.

1. Wring out the piston by means of the adaptation or a hammer. When pressing on the piston brake liquid is squeezed out from the brake cylinder in the tank.

2. Insert brake shoes into a support. Thus pay attention to the provision of a dempfiruyushchy level (1). When using blocks already being in work watch that they were established on the former places.

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

3. Insert lock springs behind brake shoes into a support.
4. By means of the assistant press a lock spring to brake shoes and enter a pin into an opening in a support.
5. Hammer a pin against the stop into a support.
6. Establish into place back wheels so that the marks put at removal coincided. Previously grease with a thin layer of bearing greasing aligning belt of a disk of a wheel on a nave. Bolts of fastening of wheels do not grease. Rusty bolts replace. Wrap bolts. Lower the car on wheels and tighten bolts cross-wise the moment 110Нм.

Several times, strongly press a brake pedal until notable resistance will be felt. Thus brake shoes adjoin to a disk and occupy the working situation.

7. Check liquid level in the tank, if necessary add liquid to MAX mark.
8. New brake shoes carefully earn extra. For this purpose several times brake the car from speed of 80 km/h to speed of 40 km/h, slightly pressing a brake pedal. Between braking let's to a brake be cooled. The first 200 km of movement do not apply needlessly strong braking of the car.

Carry out reliability control:

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