GL450 noise at low speeds
Has anyone seen wheel bearing issues this early? What other things could be contributing to the noise? In the last 8 months that I have owned this SUV, it has been at the dealer for front suspension issues and they fixed several recalls.
The SUV is still under warranty and I also have extended warranty from Mercedes. I guess GL450's are very high maintenance SUVs
Last edited by gldave; Jul 10, 2013 at 11:22 PM.
it is a 6000 pound truck that makes you feel you are driving a smaller vehicle so you drive it like one. the result is tires get mangled in a hurry.
mine lasts about 30k on a set, but the last 10k miles the noise is like a lifted f150 with mud tires going down the highway. the fact that the truck is otherwise very silent at speed does not help either
it is a 6000 pound truck that makes you feel you are driving a smaller vehicle so you drive it like one. the result is tires get mangled in a hurry.
mine lasts about 30k on a set, but the last 10k miles the noise is like a lifted f150 with mud tires going down the highway. the fact that the truck is otherwise very silent at speed does not help either

The noise started overnight after a 100 mile trip. I hope this is wheel bearings. Cupping should have been a gradual thing IMO but if true, in < 10k miles is a big concern? Never in my 20+ years of driving other autos I have replaced tires so soon because of weight of the auto. Also I just had the dealer align all wheels 5k miles ago.
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Once you identify the side, you figure out front/rear. If you can't tell by listening (it's tough sometimes), then you jack up the wheel and grab it at 3 and 9 o'clock and apply pressure from side to side. Repeat at 12 and 6. If you get any movement at all in BOTH PLANES, that is your bad bearing. You may very well get movement in one plane, but not another. That is usually bad bushings/tie rods/etc. Should be easy with wheels this large because you can apply more torque.
Glad you were able to find the problem.








