31 90 ... Front axle troubleshooting
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2010 BMW M6, 2010 BMW 650i, 2009 BMW M6, 2009 BMW 650i, and 2008 BMW M6. However, it is still accessible from the selected car via links, so may be relevant.
Follow troubleshooting for steering/shock absorbers .
FRONT AXLE TROUBLESHOOTING CHART
| Fault | Cause | Remedy |
|---|---|---|
| Grinding noise (louder when negotiating bends) | Wheel bearings faulty | Replace wheel bearings |
| Vibration | Wheel imbalance | Balance wheels |
| Radial/lateral rim runout | Check rims , replace if necessary | |
| Radial tyre runout | Match or replace tyres | |
| Steering-wheel shake | Wheel imbalance | Balance wheels |
| Radial/lateral rim runout | Check rims , replace if necessary | |
| Rubber mount of control arm faulty | Replace control arms | |
| Ball joint in control arm worn | Replace control arms | |
| Rubber mount of tension strut faulty | Replace rubber mounts on both tension struts | |
| Ball joint on tension strut worn | Replace both tension struts | |
| Refer to 90 TROUBLESHOOTING | ||
| Excessive steering wheel play/steering wheel inclination | Rubber mount of control arm faulty | Replace control arms |
| Ball joint in control arm worn | Replace control arms | |
| Rubber mount of tension strut faulty | Replace rubber mounts on both tension struts | |
| Ball joint on tension strut worn | Replace both tension struts | |
| Refer to 90 TROUBLESHOOTING | ||
| Rattling noise | Bolts for reinforcement plate loose | Tighten down bolts (refer to REMOVING AND INSTALLING/REPLACING REINFORCEMENT PLATE ) |
| Bolts for front axle carrier to engine carrier loose | Replace bolts | |
| Bolt for spring strut to swivel bearing loose | Replace bolt & nut | |
| Ball joint in control arm worn | Replace control arms | |
| Ball joint on tension strut worn | Replace both tension struts | |
| Rubber mounts for stabilizer bar bracket faulty | Replace both rubber mounts of stabilizer bar bracket | |
| Ball joints on stabilizer link(s) worn | Replace both stabilizer links | |
| Excessive tyre wear | Front or rear axle alignment incorrectly adjusted | Check suspension components for damage; if necessary, carry out chassis/wheel alignment check |