Hi everybody
When driving between 65 to 80 miles I experience some vibration in the steering wheel (It is gone above 80 mph). Sometimes it is hardly noticeable, other times I can even feel it in the accelerator pedal. The tires have about 4000 miles on them (Yoko Avid 4s). I had them rebalanced on a Hunter 9700 balancer - it helped somewhat (vibration started at 50 miles before). Rotating tires did not improve the condition, nor did relieving possible stress on the exhaust system. Reading through posts on this forum, I replaced the steering damper (had a big dent) and also the intermediate bearing (including mount) of the driveshaft. The flex discs are fairly new too, as well as the whole suspension (control arms, shocks, links, mounts etc).
The tire shop that rebalanced my tires told me that my rims are not round anymore, and I would probably need to recondition them.
Before I go for the rims (expensive), are there any other possibilites worth checking? Could wheel bearings be responsible?
Your sensible comments are most welcome!
Bruno

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1992 300TE 160 kmiles

How's the alignment look?

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'91 300-SEL

Thanks for your comment. I had the alignment done at the dealership after the suspension rebuild - everything is supposed to be in spec.
Bruno

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1992 300TE 160 kmiles

I had a problem with the Yokohama AVS dB S2 and the tire shop switched the tires from wheel to wheel front to back and with a little time and wear it went away. Sorry, I don't have anything to explain this better. That's what happened to me. I bought a set of Yokohama Avid H4S after that set and had no problems with them. Persoanlly, I think it has something to do with the condition of the rims and the person who balances them. The problem happened to me the day of installation.

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1989 300CE Astralsilber/Schwarz
1992 300CE Schwarz/Schwarz

I'm having this problem now (and has gotten worse over several years), and I'm convinced that I have a rim problem.

Fortunately,I am in the market for some 17" rims later this summer, so I hope to get that issue snuffed!

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car

I had a problem like that on my 84 500SEL. I had 3 different sets of tires, 2 sets of wheels, alignments, balance (many times), and the problem would change, maybe go away only to return later. Rebuilt frontend (needed it anyway) and nothing helped until I changed the steering damper. Nothing else was done at that time. That was about a year ago and the car has been smooth as glass since. If it hasn't been replaced I would do that next.
By the way, one set of the tires that were on the 500SEL are now on my 91 300D and they are fine on it at any speed.

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84 500 SEL (307,xxx miles)

I had a similar problem. Intermittent vibration at about 65+ mph. Balanced with Hunter did not solve the problem. Replaced motor mounts reduced vibration to almost nothing. The old motor mounts were separating - i guess they were still the originals. I have a 91 560 SEL with about 165,000 miles .