Rear Air Spring

Removing And Installing/Replacing Left Or Right Air Spring (Touring)

Caution!
- Pull retainer off air supply unit to ensure that accidental feedback control of the system cannot occur.
- In area of air line connections, extreme cleanliness must be ensured during removal and installation.
- Even small dirt particles can cause leakage in the system.

Note:
- Left and right air springs differ.
- Left air spring = red identification mark
- Right air spring = blue identification mark

Remove wheel.
Remove trunk floor trim. Service and Repair






Release screw connection (1) at quick coupling and, once pressure in system has reduced, retighten to specified torque, refer to Automatic Suspension/Specifications.
Press quick coupling down, compress snap ring (2) with pliers. Keep pliers pressed and pull off quick coupling towards top.
Push protective cap onto connection.






Remove clips.






Raise wheel carrier with workshop hoist.
Loosen bolt on wheel carrier and remove air spring.

Caution!
- Check roll fold of pneumatic spring.
- Only install pneumatic spring with a correctly formed roll fold.






The roll fold is formed when the pneumatic spring is compressed.
Seal off air connection with protective cap. This enables counterpressure to build up in air spring while pressing together and roll fold forms more easily.






Check correct seating of sealing rings (1...2).

Note: Do not under any circumstances grease sealing rings.






Install pneumatic spring in support with protective cap and attach clip.
Pull off protective cap.






Push on quick coupling and listen for audible locking of retaining ring (1).
Insert air spring in wheel carrier.






Lug (1) must lie in recess of wheel carrier!
Mount air spring with bolt.
Tightening Torque, refer to Automatic Suspension/Specifications.