31 90... Front Axle Troubleshooting

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.

Follow 31 90... TROUBLESHOOTING SHOCK ABSORBER .

TROUBLESHOOTING CHART

Fault	Cause	Remedy
Grinding noise (or humming) IMPORTANT: Tire rolling noises can sound very similar to wheel bearing noises. Test: Drive car Noise reduces when cornering Noises increases when cornering to left Noises increases when cornering to left	Most probably a tire problem Right wheel bearing faulty Left wheel bearing faulty	Replace wheels Replace wheel bearings Replace wheel bearings
Vibration	Wheel imbalance	Balance wheels
	Radial/lateral rim runout	Check rims, replace if necessary
	Radial tire runout	Match or replace tires
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 TROUBLESHOOTING for steering.
Excessive steering wheel play/steering wheel inclination	Refer to TROUBLESHOOTING .
Rattling noise	Bolts for reinforcement strut loose	Tighten down bolts
	Bolt for V-strut loose	Tighten down bolts
	Bolt connection for diagonal struts loose	Tighten down bolts
	Bolts for reinforcement plate loose	Tighten down bolts
	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 tire wear	Front or rear axle alignment incorrectly adjusted	Check suspension components for damage; if necessary, carry out chassis/wheel alignment check