Vibration at 60 mph
I didn't think much of it when I bought the car, and just haven't had the time to bring it in to the dealership yet. Let me know what it turns out to be.
Hope my little info helps a little.
Trending Topics
All jobs were done, including rotation, allingment.
Even on different set of wheels and tires - same thing - small vibration.
Yet I noticed that it doesn't happen on all surfaces, only on particular highways... weird...
The Best of Mercedes & AMG
A bit of advice the extended warranties are much cheaper if purchased before the factory warranty runs out.
This is my first time that a mechanic from a dealership, MBZ or others, actually gave me "free" advise, instead of that, "oh, you bring it tomorrow, we check it out fix it for you (and charge you an arm and a leg)."
Well, I am now in search of a good tire company... Any suggestions?
For those who got the same problem, perhaps new tires???
This is my first time that a mechanic from a dealership, MBZ or others, actually gave me "free" advise, instead of that, "oh, you bring it tomorrow, we check it out fix it for you (and charge you an arm and a leg)."
Well, I am now in search of a good tire company... Any suggestions?
For those who got the same problem, perhaps new tires???
A "wobble" such as described could also be a bent wheel.
Rory
Any body managed to solve this problem? I hardly think purchasing a new set of tires is at all fair..especially if the problem persists after the new tires have been installed...then were basically stuck with two sets of tires.
The car has continentals on at the moment.
Thanks
Last edited by Mercedes Benz #; May 30, 2005 at 08:09 AM.
I also own a 97 Porsche Boxster and it also has the wobble. My mechanic checked it out and before I even brought it in he said a wobble like that would not be caused by alignment and after looking at it he said I needed new tires. Apparently the Kumhos I have don't have a strong enough sidewall and so I am going to be getting a set of Porsche recommended tires.
Hope that helps.
i drove it myself on the freeway to around 60-70 mph and the vibrations are totally gone. i think the problem on my dad's car was that his tread was worn. maybe u should check the tread?
anyway, just a suggestion and hope it might help.
The wobble is still there though at low speeds. I went for a ride with the mechanic and he thought it was the tires. After inspecting them he said that the had worn in an odd manner. The outside edges are featherd and the inner portion has worn more making the ground contact point the edges of the tires. He said he was 80-90% sure that if I change the tires it will go away.
I finally found some 20's that I like so we'll see if this gets rid of the wobble.
1. Balance, which can be affected by -
a. Improper amount of weight. Neither tires nor wheels are usually perfect, and need balancing whenever tires are changed, and periodically (for wear) after. If permitted to remain long enough, will cause flat spots in the tire, which will then always vibrate. Static balance just won't do - you need to have tires dynamically balanced, at the speeds you drive. Also, if the wrong type of weights for your wheel type are used, they are likely to come off, giving you an instant balance problem.
b. Poor quality tires or wheels. An indication of either is use of a lot of weight. One reason I have liked Michelin and Pirelli is because with quality wheels, I have rarely had to use more than 1/2 ounce of weight on a wheel. Continentals have always required much more weight in my experience, and maintaining balance has been tougher. Tires of inferior quality may also have poorly aligned belt and tread layers, and may simply be out of round. Damaged tires may have similar problems (a broken belt from a pothole will result in a lot of bounce because the tire cannot stay in round).
As an aside, if you see a lot of weight, first be sure the mechanic removed all weights before balancing. I have personally never had a wheel using more than 1-1/2 ounces balance satisfactorily. Last year I put new Michelins on stock M-B wheels; noting a tickle driving home, I checked and found approximately 3 to 4 oz on each wheel! When I had the weights stripped and re-balanced, I had no more than 1/2 oz on any wheel; and the balance is still nearly perfect after 12K miles. Balance is dynamic; unless it is perfect, the forces acting on a wheel are different at different speeds. The chance for error increases with lots of weight.
c. Not balancing the tires the way you will run them. Don't add heavy pressure indicators or valve stem covers, caps, etc. after balancing. Balance with them on (yes, the decorative M-B valve stem caps will give you a tickle at 60-70 if wheels were balanced without them. Trust me).
d. Uneven tread wear, which itself has a number of causes discussed below. It will obviously affect the weight distribution of the tire, and it will also cause other problems; feathered or uneven treads will cause vibration even beyond that caused by balance. Tread wear from balance problems tends to be flat spots; alignment problems cause different tread wear patterns.
Improper alignment-
Improper camber will not cause a vibration per se, but can cause uneven tire wear that eventually affects balance and smooth running of the tire. Mechanics insist that improper toe will not cause vibration by itself, but I remain skeptical; even if not, it certainly causes rapid and uneven tire wear, which in turn affects balance and smooth running. Improper caster has no effect on tire wear; it can affect steering (the rate of return to center coming out of a turn, as I understand it). Bad alignment is the cause of many tread wear problems that will create vibration even if the wheels are perfectly balanced (and with wear problems, they probably won't even stay balanced for long).
Improper inflation-
Causes a different type of tread wear problem than alignment, but the results over time are the same.
Suspension wear-
Causes tire wear problems discussed under alignment, because it may make maintaining proper alignment impossible. It may also cause other problems not related to wheel balance and wear.
Damaged wheel(s). 'Nuff said.
Mismatched tires-
Not with respect to front & rear sizes, but rather tire design, tread pattern and rubber composition. It is possible for a mismatch that is severe enough to set up a dynamic coupling effect that also makes the car hard to control. Short of that, it can cause vibration and other problems.
With wheel balance problems you will usually feel some shaking in the steering column (especially if the problem is on the front tires); and you may see the passenger seat shaking (so is the driver's seat, and you can probably feel it) - especially if the problem is in the rear tires.
Wheel balance problems usually appear at one or two narrow speed ranges (of 5 to 10 mph, such as between 60 and 70), and decrease significantly or disappear outside of those ranges. Vibration from tire wear problems often appears over broader speed ranges, and tends to get worse with speed. The worse the wear, the broader the speed range. "Wobbles" at low speed can be caused by bent wheels, shifted belts ("runout"), suspension/steering problems, and road surface conditions unrelated to the wheel or tire.
I have never experienced the driveshaft problem or an engine mount problem in a Mercedes, but with those I would anticipate a higher-frequency vibration showing up in the transmission shifter, where a wheel balance problem usually doesn't cause this. The rate of vibration from driveshaft or engine mount problems will likely follow engine speed (decreasing after shifting gears, then accelerating again as engine speed increases).
The harmonic balancer problem that is subject of recall can cause a vibration in the engine, which will probably be felt in the steering wheel and possibly in the shifter - but all I can say there is it won't feel like a tire bouncing. It will follow engine speed, not vehicle speed. If your car is subject to this recall get it into the shop quickly, especially if you feel engine vibration. If the balancer separates, it will cause much more engine damage.
Last edited by Skylaw; Jun 19, 2005 at 09:37 AM.
I will let you know if the problem goes away or if its something else. A nice set of shiny new rims should do the trick
I will let you know if the problem goes away or if its something else. A nice set of shiny new rims should do the trick

Anyway, with the new tires, the problem is gone, or at least much, much less noticable. So, I am happy for now. The new tires costed me over 1/2 a grand but I think it is worth the try.
So, for those who has the same problem - try Michelin Pilots...
Now, I have any problem with the car - the damned cup holder wouldn't close... But that would a separate post...


