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
- 12. Brake system
   12.2. Antiblocking system – ABS
   12.3. The additional equipment – system ASR
   12.4. Specifications of brake system
   12.5. Overlays of lobbies brake колодок
   + 12.6. Overlays of back disk brakes
   12.7. A support
   12.8. A forward brake disk
   12.9. A back brake disk
   12.10. A brake liquid
   12.11. Removal of air from brake system
   12.12. Brake pipelines / hoses
   12.13. Replacement of brake highways
   12.14. Brake колодки a lay brake
   12.15. Adjustment of a lay brake
   12.16. The stoplight switch
   12.17. Diagnostics of malfunctions of brakes
   + 12.18. Wheels and tyres
+ 13. A body
+ 14. An electric equipment
+ 14.2. Electroschemes







12.17. Diagnostics of malfunctions of brakes
THE GENERAL DATA

THE REASON
WAY OF ELIMINATION
Too big single way of a brake pedal
Frictional overlays are in full or in part worn out
Replace brake frictional overlays.
Failure of one of contours of braking Check up braking contours on leak of a brake liquid.
The brake pedal far leaves by pressing and springs
Air in brake system Remove air from brakes.
Not enough a brake liquid in a levelling tank Add a new brake liquid.
Фрикционнные brake overlays are behind worn strongly out, the payment of the basis of an overlay adjoins to a spring Replace frictional overlays. Use firm frictional overlays.
Production of steam. Occurs at strong loading, for example, at driving on pass Replace a brake liquid. Remove air from brakes.
Slajuoe action of brakes, brake pedal should be pressed to the full
Негерметичность the pipeline Tighten elements of joining of the pipeline or replace it.
Damage of a cuff to the main or wheel brake cylinder Replace a cuff. At damage of a cuff to the main cylinder replace internal details or the cylinder.
Damage of a stationary rubber lining Repair a support.
Bad brake effect, despite strong pressing a brake pedal
Frictional overlays are oiled Replace frictional overlays.
The unsuitable or hardened frictional overlay Replace frictional overlays. Use only firm frictional overlays.
The braking amplifier is faulty Check up усилительторможения.
Piston jamming Provide a support free wheeling.
Pollution of hydraulic system Clear, replace a brake liquid.
Frictional overlays are worn out Replace frictional overlays.
Brakes creak
Frictional overlays are worn out Replace frictional overlays.
The consequence of atmospheric influences (humidity of air) is frequent It is not required any actions if the scratch is observed after long parking of the car at high humidity and after the first braking does not repeat.
Unsuitable frictional overlay Replace frictional overlays. Use firm frictional overlays. Cover the basis of an overlay with paste an anti-scratch.
The brake disk rotates непараллельно to a support Check up a surface прилегания a support.
The polluted wells in a support Clean support wells.
Wrong installation of pistons in supports of back wheels Check up 20-degree installation of pistons.
Brakes are blocked at easy braking
Frictional overlays are not oiled Replace frictional overlays.
The brake is tightened spontaneously
The compensatory aperture in the main brake cylinder is littered Clean the main brake cylinder and replace internal details.
Too small backlash between operating bar and the piston of the main brake cylinder Check up a backlash (work in repair shop).
Frictional overlays do not separate from a brake disk, wheels hard turn a hand
Corrosion in cylinders of supports Repair a support, in case of need – replace.
Non-uniform deterioration of overlays
Unsuitable frictional overlay Replace brake overlays. Use firm frictional overlays.
The support is polluted Clean support wells.
Hard piston stroke Check up piston installation.
Негерметичность brake system Check up tightness of brake system.
Pulsation of a brake pedal
Too big admission on a thickness or lateral palpation of a brake disk Check up palpation and the admission. Finish a brake disk or replace.
The brake disk rotates not in parallel a support Check up a surface прилегания a support.
Functioning of antiblocking system ABS The normal phenomenon does not demand any actions,
Vibration of brakes
Unsuitable frictional overlay Replace frictional overlays. Use only firm frictional overlays.
Partial corrosion of a brake disk Cautiously smooth out a disk grinding колодкой.
Lateral palpation of a brake disk Finish or replace a brake disk.
The brake pedal slowly falls by easy pressing
Malfunction of the main brake cylinder Replace the main brake cylinder.
Unilateral action of brakes
Pressure of air in tyres does not correspond to the ordered Check up pressure of air in tyres and correct.
Non-uniformity of deterioration of tyres Replace the worn out tyres.
Frictional overlays are oiled Replace frictional overlays.
Malfunction of a suspension bracket of a wheel or steering Check up
Razlinye types of overlays on one axis Replace frictional overlays. Use firm overlays.
Bad contact of frictional overlays Replace frictional overlays.
The pipeline is littered Check up brake pressure of all four brakes.
The polluted wells of a support Clean a surface of landing and directing surfaces of frictional overlays in a support.
Corrosion in support cylinders Replace a support.
Non-uniform deterioration of frictional overlays Replace frictional overlays (both wheels).
Brakes heat up in the course of movement
The compensatory aperture in the main brake cylinder is littered Clean the main brake cylinder and replace internal details.
Unsatisfactory idling of a pusher of the main brake cylinder Check up presence of a sufficient backlash between a pedal and a pusher and, in case of need, adjust.
Jamming of the brake piston or it тугоподвижность Restore passableness.
The brake pipeline is littered Clean трубопороводы, replace a brake liquid.
Wrong adjustment of a lay brake Correctly adjust.