Mystery of the wheel shake
Thread Starter
Member
Joined: Jun 2006
Posts: 134
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From: Quebec
Clk 55 04
Mystery of the wheel shake
Hi,
I recently installed brand new 19x8.5 rims on my E550, with 4 brand new Pirellis Pzero. 235/35/19
Right after I walk out of the garage and hit the highway I notice a king of intense wheel shake.
I return the to garage they rebalance the weels, nothing... car still shakes on the highway.
I then got the wheels force matched, it helped but I can still feel a small vibration on a straight line, the vibration intersifies when I turn the wheel on the highway.
Tried playing with the tire pressure best was 35PSI ( still some shaking but less) anything below or above makes it worse.
At this point im thinking it migh be a mechanical problem, I went to the dealership told them about the issue and had a full inspection done on the car. (axel ok, steering ok, brakes ok)
Nothing no problems whit the car, the conculsion of the dealership tires are not wide enough.
I have seen many members here with 235/35/19x 8.5 and havent head of any similar issues.
Any ideas before I lose my mind!!!!???
I recently installed brand new 19x8.5 rims on my E550, with 4 brand new Pirellis Pzero. 235/35/19
Right after I walk out of the garage and hit the highway I notice a king of intense wheel shake.
I return the to garage they rebalance the weels, nothing... car still shakes on the highway.
I then got the wheels force matched, it helped but I can still feel a small vibration on a straight line, the vibration intersifies when I turn the wheel on the highway.
Tried playing with the tire pressure best was 35PSI ( still some shaking but less) anything below or above makes it worse.
At this point im thinking it migh be a mechanical problem, I went to the dealership told them about the issue and had a full inspection done on the car. (axel ok, steering ok, brakes ok)
Nothing no problems whit the car, the conculsion of the dealership tires are not wide enough.
I have seen many members here with 235/35/19x 8.5 and havent head of any similar issues.
Any ideas before I lose my mind!!!!???
MBWorld Fanatic!
Joined: Oct 2010
Posts: 5,141
Likes: 1,293
From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
Had the after market wheels put on but with quite bad shake on steering wheel. Re-balanced, no help. Then the tire shop replaced the lug bolts with conical bolts. This helped just a little bit but not good. After this they installed the centering rings and just magically all went very smooth.
Last edited by Arrie; May 24, 2019 at 10:25 PM.
MBWorld Fanatic!
Joined: Oct 2010
Posts: 5,141
Likes: 1,293
From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
the error in centering the wheel that cause the shake is way is way less than a mm. Rings can be made to whatever they need to be.
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MBWorld Fanatic!
Joined: Oct 2014
Posts: 1,053
Likes: 347
2011 E-350 4Matic Sport
Besides ensuring hub-centric installation, a key element was also mentioned - using the correct seat angle wheel bolts. Even a slight difference in degrees in the angle can cause the wheel to shift slightly as it rotates.
MBWorld Fanatic!
Joined: Oct 2010
Posts: 5,141
Likes: 1,293
From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
If you look at the MB lug bolts they are rounded like ball surface and do not do a good job with centering the wheel obviously as the centering is done with the wheel hole fit over the shoulder on the hub. Without the center alignment conical bolts are needed that are made to center the wheel but this did not work for me and the tire shop made comments that MB wheels / tires are difficult in general to balance correctly. The issue may be that MB does not position the lug bolt holes very accurately as they use hub centric wheel mounting.
As your ring would need to be very thin it probably would be made of some metal as plastics are not easy to machine when very thin.
Super Member
Joined: Sep 2015
Posts: 725
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From: Chicago area
2015 E400 and 2015 GLK350
One other thing to check is to have the tire shop spin up each tire, off the car, and check for both vertical and horizontal run-out. Many years ago I had a similar problem, coincidentally also with Pirelli tires. The tire shop finally put the tires on the balancer and checked them, and they weren't even round! Three of the four tires had visible up and down motion, meaning vertical run-out. Changed out to a different model tire, and car was smooth as glass. All it takes is one tire to make you crazy. . .
