31 90 ... Troubleshooting Shock Absorber
WARNING: This page is about a different car, the 2007 BMW 550i and 2006 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.
Read and comply with INFORMATION ON REPLACING SHOCK ABSORBERS .
SHOCK ABSORBER TROUBLESHOOTING PROCEDURE
| Fault | Cause | Remedy |
|---|---|---|
| Shock absorber knocking (bottoming) | Rubber damper faulty | Visually inspect auxiliary spring for cracking, replace AUXILIARY SPRING |
| Shock absorber leaking (oil/gas) | Replace SHOCK ABSORBER | |
| Rattling noise | Shock absorber mounting loose | Tighten SHOCK ABSORBER |
| Support bearing faulty/hardened | Replace SUPPORT BEARING | |
| Shock absorber leaking (oil/gas) | Replace SHOCK ABSORBER | |
| Worn down areas (flattened areas) on tire profile | Shock absorber leaking (oil/gas) | Replace SHOCK ABSORBER |
| Long after-swinging of body after driving over rough road | Shock absorber leaking (insufficient shock absorber effect) | Replace SHOCK ABSORBER |
| Building-up of body in case of successive uneven surfaces | Shock absorber leaking (insufficient shock absorber effect) | Replace SHOCK ABSORBER |
| Wheels jumping even on normal road surfaces | Shock absorber leaking (insufficient shock absorber effect) | Replace SHOCK ABSORBER |
| Whistling noises | Separating skin in vent holes of auxiliary spring | Remove separating skin |