Opel Vectra A

since 1988-1995 release

Repair and operation of the car

Vektr's Opel And
+ 1. Maintenance instruction
+ 1.1 Maintenance
+ 2. Engine
+ 3. Repair of DOHC engines
+ 4. Repair of the diesel engine
+ 5. Cooling system
+ 6. Fuel system
+ 7. The fuel and exhaust system of models with system of injection of fuel
+ 8. Exhaust system and system of decrease in toxicity of exhaust gases
+ 9. Fuel systems of the diesel engine
+ 10. Engine electrical systems
+ 11. Transmission
+ 12. Mechanical transmission
+ 13. Automatic transmission
+ 14. Power shafts
- 15. Brake system
   15.2. General information
   15.3. Anti-blocking system of brakes (ABS)
   15.4. Pumping of the hydraulic brake system
   + 15.5. Replacement of front brake shoes
   15.6. Replacement of back brake shoes on disk brakes
   + 15.7. Replacement of back brake shoes on drum brakes
   15.8. Replacement of brake shoes of the emergency brake on back disk brakes
   15.9. Support of a forward brake
   15:10. Support of a back disk brake
   15:11. Brake disk
   15:12. Forward brake disk
   15:13. A back brake disk on models with SOHC engines
   15:14. A back brake disk on models with DOHC engines
   15:15. Brake drum
   15:16. Back working brake cylinder
   15:17. Brake board of a back brake
   15:18. Protection cover of a forward brake disk
   15:19. Main brake cylinder
   15:20. Repair of the main brake cylinder (model without ABS)
   15:21. Vacuum amplifier of brakes
   15:22. Hydraulic ABS modulator
   15:23. The ABS sensors installed on wheels
   15:24. ABS control unit
   15:25. ABS relay (only ABS-2E system)
   15:26. Valves of adjustment of pressure
   15:27. Brake pipelines and hoses
   15:28. Adjustment of the emergency brake
   + 15:29. Cable of the emergency brake
   15:30. Lever of the emergency brake
   15:31. Brake pedal
+ 16. Suspension bracket
+ 17. Body
+ 18. Electric equipment
+ 19. Check of malfunctions

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15:22. Hydraulic ABS modulator


The hydraulic ABS modulator with uncovered
1 – screws of fastening of a clip of a plait of wires;
2 – grounding tire;
3 – relay

Arrangement of screws of fastening of the hydraulic ABS modulator

1. Remove a weight wire from the accumulator.
2. For reduction of losses of brake fluid uncover a popolnitelny tank of the brake system, close a tank mouth polyethylene and again screw a cover. It is necessary in order that the cover hermetically closed a popolnitelny tank.
3. Unscrew the screw and remove a plastic cover from the hydraulic modulator.
4. Unscrew two screws and remove a clip of a plait of wires from the modulator (see rice. The hydraulic ABS modulator with uncovered).
5. Disconnect the electric socket from the modulator.
6. Unscrew connecting nuts and disconnect brake tubes from the modulator. Close the ends of tubes suitable traffic jams and move them from the modulator aside, at the same time do not deform them.
7. Unscrew three nuts of fastening of the modulator (see rice. Arrangement of screws of fastening of the hydraulic ABS modulator), then raise and incline the modulator in order that it was possible to unscrew a nut, the fixing grounding tire.
8. Unscrew a nut, the fixing grounding tire, then take the hydraulic modulator from a motor compartment, at the same time do not spill brake fluid on a paint and varnish covering of the car.
9. If replacement of the modulator is made, remove two relays from the old modulator and install them on the new modulator.


1. Before installation check that the bolts fixing a modulator arm to the panel of a body are reliably tightened and rubber pillows of the modulator are in good shape.
2. Installation is made in the sequence, the return to removal taking into account the next moments.
3. Before installation of the modulator fix the grounding tire.
4. Remove polyethylene from a jellied mouth of a popolnitelny tank of the brake system and pump over all hydraulic brake system.
5. Check that the control lamp of ABS dies away after start of the engine.