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
      22.21.1.2. Electronic control device (ECU)
      22.21.1.3. Sensor of a forward wheel
      22.21.1.4. Sensor of a back wheel
      22.21.1.5. Gear rotor of sensors of wheels
      22.21.1.6. Relay
      22.21.2. Models with a control system of speed of movement of the car (ASR)
      22.21.2.2 ASR system pump
      22.21.2.3 Pressure accumulator
      22.21.2.4 Electronic control device (ECU)
      22.21.2.5 Sensor of a forward wheel
      22.21.2.6 Sensor of a back wheel
      22.21.2.7 Gear rotor of sensors of wheels
      22.21.2.8 Relay
   22.22. The vacuum pump on models with diesel engines
+ SUSPENSION BRACKET
+ BODY
+ ELECTRIC EQUIPMENT
+ CHECK OF MALFUNCTIONS






22.21.1.2. Electronic control device (ECU)

Removal

Connection of brake tubes (1) and the electric socket (2) to the hydraulic device of anti-blocking system of brakes

Arrangement of an electronic control control unit anti-blocking system of brakes

PERFORMANCE ORDER
1. The electronic control device of anti-blocking system is located under a plastic casing and established on a back part of a support of the accumulator. Remove a weight wire from the accumulator.
2. Remove rubber consolidation and a cover. For improvement of access to the electronic control device remove the rubber consolidation located at the basis of a windscreen, then disconnect a fixing bracket, unscrew screws and remove a lateral part of a ventilating casing.
3. Release a bracket of fastening and disconnect the electric socket from the ECU block, then take the ECU block from a nest (see fig. Arrangement of an electronic control control unit anti-blocking system of brakes).

Installation

PERFORMANCE ORDER
1. Installation is made in sequence, return to removal.