Steering wheel wobble
Whenever I drive above 40 mph and a lot of times at around 60-70mph the steering wheel wobbles! Plain and simple.
I noticed this before I swapped out the AMG wheels for Brabus ones and it's still the same. It's almost strange in how it happens - very rarely will the steering be wobble-free while most of the time it's there and on occassion it's so bad that I'll actually look at the steering and see it quiver!
Dang! I hate that!
Anyone bothered by this?
Maybe Konigster has some info?
Note: when I took my car in to the dealership to get the wheels swapped out, the service tech. told me the tie rod bushings had a recall/service bulletin and needed to be replaced. Later that day, the SA tells me that it was only on the 70 models
. So, I went back and asked the ST - he looked a little confused and thought that it was on the 08's also! So, I called the SA again - and after about 2 days they tell me that it's only on the 07's!!

I can't trust what these folks tell me quite honestly - it's like they don't know. Sometimes I feel I know more about the S class than they do. Honestly, that's really how it seems sometimes.
Or it could just be that hanging out with all the Einstein's on mbworld.org has resulted in that knowledge imbalance between driver and ST/SA
Last edited by AustinGuy; May 16, 2008 at 01:57 PM.
In my expce, quality of MB (or any brand's) svc really depends upon specific dealer, SA and tech...and I suspect most well-run dealers (like almost any other svc-oriented business) "tier" the caliber of svc delivered vs profitability of a given customer....
Would try to figure out which is best dealer in your region and which SA at that dealer is the "go-to" guy for repeat S/CL buyers....your steering wheel issues aren't normal...
Chris
Tech/SA referenced DTB P-B-46.20/52 NOV06 muffled knocking noises when driving slowly (3-13 mph) on uneven road surfaces remedied by replacing the mounting bolts of the steering gear and outer tie rods. I doubt this bulletin is applicable in this matter.
That was some very good info. I'll make sure I print it out and show it to the SA if he gives me some gobly gook about how low profile tires have more shake in them.
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Check your rims, they might be bent (not by you)
That's exactly what happened to me. Mind you 16 "delivery" miles and delivery boys having fun.
Mark
The Best of Mercedes & AMG
Nevertheless, it still might be a possibility. I saw it on mine when I had someone attempt to rebalance my wheels/tires. The bend in the rim was clearly obvious.
I drove the car again last night and the shimmy was very pronounced at certain times. It's really weird that it only happens at certain times or on certain surfaces - I can't tell what causes it because the road surfaces are don't change that much.
I also noticed this on the 2-3 S550's I test drove.
Drove the car home an at 40mph the vibration/wobbling begins. The car went back in and they have had it for 4 days and were told by MB to replace the bushings and if that does not solve the problem than try putting continental supercontacts instead of the dunlops.
I still can't understand how a rim got bent. I have had no accidents, drove into a curb etc.

Steering wheel wobble would have to be a balance issue at the wheel parts that rotate, or one of the rotating parts is not round (the latter mainly only concerns the tyre and the rim, others can be balanced out).
It could be a tyre structure issue, the wheel hub bent, the wheel bent or the brake disc bent (mainly an issue at braking).
Changing Dunlops to Contis or Michelins could help.
It is my opinion that a bushing related matter would cause steering wheel twitch during slow speed or braking applications rather than beginning at 40mph. Time will tell.
Lastly, reverting back to tire brand(s) that originally deliver with the vehicle has been known to solve a number of problems sometimes experienced immediately or over time when all else has failed.
Anyway, today i got the car back in brand new condition with no vibration what so ever. They replaced the bushings, replaced the 4 tires with new ones off the rack (eventhough they had replaced all four initially), thought was that maybe the tires sat on the shelf too long and might have deformed them.
Who knows if the bushings were the problem or the tires.

I noticed when I hit bumps, the car doesn't go straight over but instead feels like it bounces to the side. I just had an alignment done today and it seems like it has helped a little. I still have some steering wheel vibration/shaking though.
The front tires are in need of replacement soon, so I'm hoping that will remedy the problem and I won't need to take it in for service. On the other hand, if there is a bushing related bulletin, I definitely want to get that done.

Improper wheel balancing is many times the culprit.
Need to eval alignment/balance early in use (and have dealer adjust as needed)....the aftermkt nonsense only adds a layer of absurdity for those who don't understand basic physics/logic of simplicity (vs generally inept dealers) anyway...
Not clear that any of these highly-engineered cars make sense vs specific tires/wheels that vary at all from factory specs, given those are specific wheel/tire set-ups factory uses in its R&D work to develop/refine vs a given chassis set-up....Engineering 101, no???
Actually, I'm a little disappointed in the Michelins I have on the rear as I've only put about 8000 miles on them and they are showing signs of wear quickly! I put 17000 miles on the dunlops and changed them out with still around 3000 miles of potential tread left. I didn't want to take any chances on safety.
The Michelins ride better but the Dunlops seem to last longer and the ride is good enough for me, so I am now having a hard time deciding on which to go with. I've never had a bad experience with Michelin but I had a horrible experience with dunlops on a 2002 CL500 I bought new. The dealership was 150 miles away and after 2 trips to get it resolved with no success , I finally had to eat the loss and put Mich. on to get it right

My tendency is towards Michelin but I wonder if the Hankooks would be good enough???. If anyone has ever tried Hankook , let me know.
TireRack is where I usually get my tires from and the Michelins are at $300 apiece. TireRack sells Hankook as well.
If I buy hankook and am dissatisfied, I'm stuck. Maybe the safest choice would be to stick with old faithful Michelins
Last edited by trumpet1; Jun 22, 2008 at 10:39 PM.
$150K+ cars are, by definition, discretionary....and all about maximal safety/perf/subtle diffces vs lesser cars....wouldn't skimp on health ins/car insurance/tires/proper car mtce/choice of health providers either....one can far more safely live w/an elderly TV/cell ph/iPod/non-stylish item of clothing or furniture....but cars are among only purchases in US where an affluent guy's health can be signif impacted by split-sec decisions of driver/capabilities of said car in an emergent maneuver....

I believe I need a simple wheel alignment. The entire car shakes a little.. but you feel it more in the steering wheel.
Might not be same problem but you never know.
Sometimes, the wheel and tires dont mate properly and cause a slight vibration. My suggestion would be to take the car to a reputable tire shop. Have them mark the tire and wheels mounted location. Then dismount the tire and spin it 180 degrees and remount the tire. The marks originally made on the wheel and tire should now be on opposite ends of each other. Then have it Road-Force Balanced. This should solve your issue....
hope this helps...
Last edited by Alex@wheelexperts; Jun 23, 2008 at 12:21 PM.



