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#1
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symptom diagnosis help
Hi, I've got an 85 500sel, it's begun to sound as if my tires are underinflated, although they're not....there's a whining, which is associated with the speed of the car and not the speed of the engine....I was thinking wheel bearings, but I'm just guessing...any help please
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#2
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First test: rotate your tires front to rear. If the sound changes or moves, tire wear pattern is the issue.
Steve
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'91 MB 190E 2.3 '08 RAV4 Ltd 3.5 '83 Lazy Daze m'home 5.7 |
#3
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Hello and thanks for responding.....I did as you suggested, but it made no difference to the noise.....I investigated a little further, ...it makes the noise in neutral and also with the engine off.....I then remembered that my ABS light went on a couple of weeks ago, but went off soon after.....so, I wonder, would the ABS light go out even if there were something continuing to be wrong with the ABS....Also, the break wear indicator, I assume it's auditory....does it sound anything like the noise I'm describing?.....or, any other ideas you might have....thanks .Ken Heimbuch
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#4
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No auditory warning on MB brakes, at least not till you are metal to metal.
There is a good chance that a wheel sensor would be affected by the play in a bad wheel bearing.
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Steve Brotherton Continental Imports Gainesville FL Bosch Master, ASE Master, L1 33 years MB technician |
#5
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Thanks, but I wonder then how the brake sensor communicates with you....is it by the dash board light? I also have come to understand that a wheel bearing would make a rythmic sort of noise, and that the wheel might show some back and forth looseness, neither of which is the case, thanks for your help. Ken.
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#6
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When front wheel bearings went bad on one of my Sd's it sounded like I had deep lug snow tires on the front got very loud...........
William Rogers.......... |
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