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  #1  
Old 03-07-2000, 03:45 PM
val
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I've got Michelin MXV4 Energys (205/60R15)on my 1990 300E. The outside tread rows on the front tires are feathering. Looking from the top, each segment is sloping from front to back. I know the toe can cause axial feathering, but I've never heard of it happening circumferentially. The car drifts and sort of floats at speed without pulling and the overall feel of the handling is vague and imprecise. I had the tires balanced, rotated, and a 4-wheel alignment done. It's better, but not firm and precise like it used to be. The shop looked at the steering and suspension and nothing jumped out as a likely cause. The tires are inflated to the recommended pressure and I also tried increasing the tire pressure gradually to the maximum sidewall pressure without noticible improvement. The car has 92,000 mi. and I've not had any suspension work done since I bought it at 52,000 mi. I can't say if there was any work prior. Anyone have any ideas?
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  #2  
Old 03-07-2000, 09:54 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
Be sure the shop knows Mercedes!! The rear suspension has many links, any one can cause the symptoms you are talking about.

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  #3  
Old 03-08-2000, 12:26 AM
Jim Kimmey
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We also change a lot of front lower control arm bushings for this type problem

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  #4  
Old 03-08-2000, 12:37 AM
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Join Date: Jan 2000
Location: Indpls.,IN. USA
Posts: 84
MB alignment requires a veteran tech. familiar with the product. Most alignment shops won't take the time to do a total alignment. It can take an hour and a half to two hours to adjust all 8 possible adjustments. I find that I need to add one half of a degree more caster to the right front to compensate for road crown. The other important thing to notice is that mercedes requires 20 to 25 lbs of pressure between the front inner faces of the front tires to set toe. If all specs are in tolerance and even on side to side adjustments you should be happy with the results. I think at 93k your rear links should still be O.K. however they still could use an educated eye. Good luck!
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  #5  
Old 09-03-2002, 10:12 AM
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Join Date: Dec 2000
Location: Warminster, PA
Posts: 24
Tire Problems on 1990 300E

I want to share same problems with my 1990 300E, I bought Michelin Pilot XGT and made a mistake of letting tire shop align my car. Later, the rear tire started making this rotation sound like the tire is out or round or chopped. I tooked the car to a Mercedez Benz dealer for alignment and was infromed that the tire should get straighten-out . The odd sound was gone but after couple of thousand miles it came back it only happens in the rear-left side even after rotating the tire it still make that sound when car starts to roll-up, low-speed and will be gone when I get faster. Anybody seen or heard this before, Iam just about to change the tires again, I want to know that this is not a mechanical problem from my rear. I also heard that there's not a lot of satisfied customer for the Michellin Pilots, can anybody make a tire recommendation? Heard that contininental Tires are better.
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Warminster, PA
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  #6  
Old 09-03-2002, 03:03 PM
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Join Date: Jul 2001
Location: SoCal
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At 93k mi, I would expect the idler bushings need replacement, if not already done. Whatever caused the feathering, though, I would no longer expect proper tracking from those tires, unless shaved. If the rears don't exhibit this problem, see if rotating front-to-back changes the character of the steering feel.

Steve
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  #7  
Old 09-03-2002, 03:41 PM
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Join Date: Dec 2000
Location: Warminster, PA
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I already done the front to back tire rotatotion by the mechanic who also replaced the rear shocks. Also this tire rotation sound only happens in the left rear. What is an idler bushing and where is it located? Thanks for the reply.
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Warminster, PA
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  #8  
Old 09-03-2002, 04:09 PM
J.HIDALGO's Avatar
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Join Date: Jul 1999
Location: Jax, FL
Posts: 1,785
You may want to change the steering damper too.

They go bad after a while. They are cheap and easy to change.
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'86 300E
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