Mercedes W124

since 1985-1995 of release

Repair and car operation



W124 Mercedes
+ Governing bodies and control devices
+ MAINTENANCE
+ 2. Maintenance (diesel engines)
+ ENGINE
+ 4. Repair of 6-cylinder petrol SOHC engines
+ 5. Repair of 6-cylinder petrol DOHC engines
+ 6. Repair of the diesel engine established in the car
+ 7. Major maintenance of engines
+ COOLING SYSTEM
+ FUEL SYSTEM
+ 10. System of injection of BOSCH CIS-E fuel (KE-JETRONIC)
+ 11. System of injection of BOSCH HFM fuel
+ 12. Fuel system of diesel engines
+ 13. Fuel system of diesel engines
+ SYSTEMS OF START, IGNITION
+ 15. System of ignition of 4-cylinder petrol engines
+ 16. System of ignition of four-cylinder petrol engines
+ PRESTARTING HEATING
+ TRANSMISSION
+ 19. Mechanical transmission
+ 20. Automatic transmission
+ POWER SHAFTS
- BRAKE SYSTEM
   22.2. General information
   22.3. Pumping of hydraulic brake system
   22.4. Brake pipelines and hoses
   + 22.5. Replacement of forward brake shoes
   22.6. Replacement of back brake shoes
   22.7. Forward brake disk
   22.8. Back brake disk
   22.9. Forward brake support
   + 22.10. Support repair
   22.11. Back brake support
   22.12. Main brake cylinder
   22.13. Vacuum amplifier of brakes
   22.14. Unilateral valve of the vacuum amplifier of brakes
   22.15. Adjustment of the parking brake
   22.16. Brake shoes of the parking brake
   22.17. Pedal of the parking brake
   22.18. Cables of the parking brake
   22.19. Stoplight switch
   22.20. Anti-blocking system (ABS)
   + 22.21. Elements of anti-blocking system
   22.22. The vacuum pump on models with diesel engines
+ SUSPENSION BRACKET
+ BODY
+ ELECTRIC EQUIPMENT
+ CHECK OF MALFUNCTIONS






BRAKE SYSTEM

22. Brake system

22.1. Technical characteristics

Forward brakes

Diameter of a brake disk:
– models 320 and 300 with 24 valves
294 mm
– other models
284 mm
Thickness of a brake disk:
The new
The minimum
– models 300 with 24 valves
22,0 mm
19,4 mm
– models 320:
   • models till October of 1992 g
22,0 mm
19,4 mm
   • models since November of 1992 g
25,0 mm
22,4 mm
– other models:
   • continuous disk
12,0 mm
10,0 mm
   • a ventilated disk
22,0 mm
19,4 mm
The most admissible palpation of a disk
0,12 mm
Minimum admissible thickness of overlays of brake shoes
2 mm

Back brakes

Diameter of a brake disk
258 or 278 mm
Thickness of a brake disk:
The new
The minimum
– models 320 and 300 with 24 valves the Versatile person
20,0 mm
17,4 mm
– other models
9,0 mm
7,3 mm
The most admissible palpation of a disk
0,15 mm
Minimum admissible thickness of overlays of brake shoes
2 mm
Diameter of a drum of the parking brake
164 mm

Tightening moments


Bolts of fastening of the ABS sensor established on a wheel:
– forward sensors
22 Nanometers
– back sensors
8 Nanometers
Screw of fastening of a brake disk
10 Nanometers
Connecting nuts of brake tubes:
– to a support
18 Nanometers
– other connections
15 nanometers
Unions of pumping of a support
7 Nanometers
Forward support:
– bolts of fastening of directing fingers (a mobile support)
35 Nanometers
– bolts of fastening of the holder of a support
115 Nanometers
Nuts of fastening of the main brake cylinder
20 Nanometers
Bolts of fastening of a back support:
– models 280Е with a speed control
70 Nanometers
– other models
50 Nanometers
Bolts of fastening of a wheel
110 Nanometers
Nuts of fastening of the vacuum amplifier of brakes
20 Nanometers
Connecting nut of a hose of the vacuum amplifier of brakes
30 Nanometers