S-class W202 Mercedes

1993-2000 of release

Repair and car operation

W202 Mercedes
+ 1.2. General information
+ 2. Maintenance
+ 3. Engines
+ 4. Greasing system
+ 5. Cooling system
+ 6. Heating, ventilation
+ 7. Ignition system
+ 8. Fuel system
+ 9. Transmission
+ 10. Running gear
+ 11. Steering
- 12. Brake system
   12.2. Anti-blocking system – ABS
   12.3. The additional equipment – ASR system
   12.4. Specifications of brake system
   12.5. Overlays of forward brake shoes
   + 12.6. Overlays of back disk brakes
   12.7. Support
   12.8. Forward brake disk
   12.9. Back brake disk
   12.10. Brake liquid
   12.11. Air removal from 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. Electroschemes

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12.8. Forward brake disk


1. Unscrew a support of a forward wheel and suspend on independently made hook from a wire that the brake hose did not break draft.

Not to disconnect a brake hose, differently it is necessary to delete air from brake system.

2. Unscrew a bolt of fastening (64) by means of a face key and remove a brake disk (61) from a nave of a wheel (69) and tightening plugs (63).


1. To provide identical braking from both parties, both brake disks should have equally ground surface and height of microroughnesses of this surface. Check thickness of brake disks / lateral palpation.
2. Check durability of landing on a support of a wheel of a brake guard. In case of need tighten bolts.
3. If there is a rust on a flange of a brake disk and a nave of a forward wheel, remove it with a wire brush or an emery paper. Cover landing of a nave of a wheel by a thin layer of high-temperature greasing, for example, Molykote-Paste "U", Molykote-Paste G Rapid, Liqui-Moly-Paste 36 that the brake disk at the subsequent dismantle easily acted in film.
4. Clear new brake disks nitrosolvent of a protective varnish. Brake disks can be cleared and degreased also a vapor jet under a high pressure.
5. Get a brake disk on a nave of a forward wheel, paying attention to durability of landing of protective plugs. Twirl a new bolt of fastening with the moment of an inhaling of 10 N of m.
6. Establish a support.