Mechanics

550I

2008 BMW 545i • V8 2WD Automatic • 47,000 miles

I have a 2008 BMW 550i and I have new rims and tires from Tire Rack. The tire pressures are set properly. Between 40 and 60 mph there is a reverberating moaning noise almost like going over rumbling strips. Please help!
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Alikalkan2003
November 30, 2010.



Have someone follow on multilane road and check out tire/wheel from both sides of car. If something funny is going on, it will show up as wobble or bounce pattern. Google complaints about tire rack.

Tiny
Fixitmr
Nov 30, 2010.
What brand of tire did you install on the vehicle? Some tires have a tendency to be quite noisy. Tires with certain tread patterns are more susceptible to this possibility.

Dr. Hagerty
Nov 30, 2010.
I use Michelin original size and speed rating.

Tiny
Alikalkan2003
Nov 30, 2010.
Was the noise present with the original tires?

Dr. Hagerty
Nov 30, 2010.
Yes it was. Do you think it could be front wheel bearings?

Tiny
Alikalkan2003
Dec 1, 2010.
If the noise was present with the original tires, what about that is different with your new tires?

Dr. Hagerty
Dec 1, 2010.
Very possibly could be front wheel bearing(s). They usually produce a sound like you describe. Generally speaking, when you turn the wheel sharply the sound should change or disappear momentarily. Especially if 1 bearing is bad or worse than the other side.

Tiny
Fixitmr
Dec 1, 2010.
Yes, the sound does disappear momentarily when I turn the wheel sharply. Now, how do I figure out which one it is? Thanks!

Tiny
Alikalkan2003
Dec 1, 2010.
If the sounds from the front are when the wheel is turned to the right, it is likely the right bearing. Lifting the car to allow the wheels to spin would be another way.

Dr. Hagerty
Dec 1, 2010.