Rear Ride Control System — Component Removal and Installation (Opel Omega B2)

Compressor

Removal

1. The compressor is located in the right front wheel arch. To gain access, jack up the front of the car and place it on axle stands. Remove the right wheel and separate its arch liner.

2. Disconnect the electrical wiring connector from the compressor.

3. Disconnect the air intake hose from the chamber behind the right headlight assembly.

4. Release the retaining clip and separate the discharge tube from the top of the compressor.

5. Loosen and remove the mounting screws, then remove the compressor together with the mounting bracket.

Installation

6. Install in the reverse order. Finally, check the operation of the rear suspension control system as described below.

Pressure tube

Removal

7. Disconnect the pressure pipe from the compressor as described in the previous subchapter.

8. Jack up the rear of the vehicle and place it on axle stands.

9. Release the metal spring clip and disconnect the pressure tube from the valve on the rear shock absorber body. Disconnect the tube from the opposite shock absorber in the same way.

10. Locate the T-shaped pipe adapter on the bottom. Release the clamps and separate the pressure pipe from the adapter.

11. Moving along the bottom of the car, release the tube from the mounting brackets, then remove it from the car.

Installation

12. Install in reverse order. Make sure to route the pressure tube so that it does not interfere with the rear suspension components. Finally, check the operation of the suspension control system as described below.

Rear longitudinal vehicle roll sensor

(Article published on the website: opelbook)

Removal

13. Disconnect the negative cable from the battery and move it away from the terminal.

14. Block the front wheels, then jack up the rear of the vehicle and support it securely on axle stands. Remove the rear wheels.

15. Disconnect the sensor wiring at the multi-channel connector.

16. Use a screwdriver to press the rod away from the ball joint on the sensor drive arm.

17. Unscrew the mounting screws and remove the sensor from the rear crossmember together with the bracket.

Installation

18. Install in the reverse order. Finally, check the operation of the suspension control system as described below.

Checking the system operation

19. Park the car on a level place (not downhill). The car should not be loaded, remove all unnecessary things from it. Release the handbrake and let the engine idle for a while so that the ground clearance of the rear suspension stabilizes. Tighten the handbrake again.

20. Measure the distance between the road and the rear bumper.

21. Place a heavy load in the trunk. Release the handbrake and let the engine idle again to stabilize the rear suspension ground clearance. After a while, tighten the handbrake.

22. Repeat the measurement taken in step 20. If the system is working properly, the ground clearance of the loaded vehicle should be 3-5 cm less than the first measurement.

23. Unload the vehicle and allow the ground clearance to stabilize again. The system should return the ground clearance to its previous value within 20 seconds.