Mercedes of the S-class W202
1993-2000 of release
Repair and operation of the car
+ 1.2. General information
+ 2. Maintenance
+ 3. Engines
+ 4. Lubrication system
+ 5. Cooling system
+ 6. Heating, ventilation
+ 7. System of ignition
+ 8. Fuel system
+ 9. Transmission
+ 10. Running gear
+ 11. Steering
- 12. Brake system
12.2. Anti-blocking system – ABS
12.3. The additional equipment – the ASR system
12.4. Specifications of the brake system
12.5. Overlays of front brake shoes
+ 12.6. Overlays of back disk brakes
12.8. Forward brake disk
12.9. Back brake disk
12:10. Brake fluid
12:11. Removal of air from the brake system
12:12. Brake pipelines / hoses
12:13. Replacement of brake highways
12:14. Brake shoes of the parking brake
12:15. Adjustment of the parking brake
12:16. Stoplight switch
12:17. Diagnostics of malfunctions of brakes
+ 12:18. Wheels and tires
+ 13. Body
+ 14. Electric equipment
+ 14.2. Electrical circuitries
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The brake system with ABS and ASR
The hydraulic brake system with the foot drive consists of the main brake cylinder, the hydraulic booster of brakes and disk brakes of forward and back wheels. The brake system has two contours. One of contours covers forward wheels, the second – back. At failure of one of contours, for example, owing to leakage, the car can be slowed down by means of only the second contour. Pressure in both contours is created in the dual main brake cylinder by pressing a brake pedal.
The tank with brake fluid is over the main brake cylinder and provides with brake fluid all system.
The hydraulic booster of brakes accumulates a part of the absorption depression received by means of the engine. As in the diesel absorption depression sufficiently is not formed, models with the diesel have the special pump of depression for the brake system. In this case the effort by means of depression is transferred to brakes via the corresponding valve.
Forward disk brakes are equipped with the disk mechanism with a floating bracket. In this case only one piston is necessary to press both brake slips to a brake disk. On the back bridge there are brake mechanisms with the fixed bracket which provide the required delay. Pressing of brake slips in case of the mechanism with the fixed brackets requires two pistons.
The parking brake is given by means of a cable and influences only back wheels. As disk brakes not really well approach as parking, on back wheels two brake drums which are built in brake disks are in addition placed. Brake drums are involved only for the parking.
When cleaning the brake mechanism dust of wear of slips which is noxious to health flies. Therefore when cleaning brakes you watch to inhaling products of wear of brakes. Brake slips are a component of "Permission to operation of the car in these conditions", besides, they differ depending on model. It is recommended to apply only company brake slips.
Instruction: after installation of new slips they have to be earned extra. During a running in (about 200 km) avoid without the need for sharp braking.
Work on the brake system demands careful purity and exact respect for technology. If experience is absent, address in a workshop.