31 90 ... Troubleshooting shock absorber
WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.
TROUBLESHOOTING CHART
| Fault | Cause | Remedy |
|---|---|---|
| Wheel knocking (bottoming) | Auxiliary spring faulty | Visually inspect auxiliary spring for cracking, replace auxiliary spring AWD only: Visually inspect support ring for damage |
| 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 (gas/oil) | Replace shock absorber | |
| Worn down areas (flattened areas) on tyre profile | Shock absorber leaking (gas/oil) | 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 |