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






22.2. General information

On the car the working brake system with a hydraulic drive and diagonal division of contours is applied that considerably increases safety of driving of the car. The brake system consists of the main brake cylinder, the vacuum amplifier of brakes and disk brakes on lobbies and back wheels.

More and more late models are equipped with the anti-blocking system of brakes consisting of the hydraulic modulator, the electronic control unit, the relay and sensors of speed of rotation of wheels. The system prevents blocking of wheels at sharp braking. On cars with diesel engines for creation of the vacuum which is ensuring functioning of the vacuum amplifier of brakes, the separate pump which is established on a head of the block of cylinders is applied. On the models equipped also with a control system of speed of the car (ASR), the anti-blocking system also carries out function of the monitoring system of speed of movement of the car.

On the majority of models forward disk brakes with a support of floating type with one working brake cylinder are established. On models with more powerful engines establish a motionless support with two working brake cylinders.

On back disk brakes motionless supports with two working brake cylinders are established.

The parking brake of independent type with a hummock drive затормаживает the brake mechanism of drum-type type back wheels.