Rear Suspension

Shock absorber/spring, removing and installing
Removing





- Remove bolts with vehicle standing on its wheels (raise vehicle until the bolt is accessible).
- Raise vehicle to assembly height to relieve the pressure on the coil spring.
- Pull rear axle down and remove coil spring with the help of a second mechanic if necessary.





- Disconnect shock absorber from rear axle.

1. Self-locking nut
2. Hex bolt
3. Shock absorber
^ Take out shock absorber.

Installing
Install in reverse order.
Tightening torques:
Shock absorber to body - 45 Nm
Shock absorber to rear axle - 50 Nm + 90°

Shock absorbers on vehicles with front wheel drive, assembly overview





1. Gas filled shock absorber
^ Can be replaced individually
^ Allocation
^ Disposal
Steering No. 3; Leaking shock absorbers, noisy shock absorbers

Functional check
Press shock absorber together by hand. When doing this, the piston rod must move over its complete length smoothly and with even force.
When the shock absorber has sufficient gas pressure the piston rod returns to its original starting position.
If the piston rod does not return to its starting position and there is no loss of oil then the shock absorber is still OK.

2. Hex nut
^ Replace each time after removing
3. Hex bolt M10 x 90
^ 50 Nm and turn 90° further
^ Replace each time after removing
^ Only tighten when vehicle is standing on wheels.
4. Protective cap
5. Protective tube
6. Stop buffer
7. Hex bolt, 45 Nm
8. Shock absorber mounting
9. Hex self-locking nut, 25 Nm
^ Loosening and tightening see Fig. 1
^ Replace each time after removing
10. Threads in wheel housing
^ If thread in welded nut in wheel housing is damaged, then this can be serviced with a Heli-coil.





Fig. 1 Loosening and tightening shock absorber mounting threaded connection