Front wheel bouncing?

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Old 07-29-2018, 08:52 PM
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W218 CLS550
Front wheel bouncing?

Finally installed a new set of wheels and tires. Now I’m experiencing this tiny but very noticeable bouncing/vibration from my steering wheel at high speed on a newly built flat highway. What could be the causes? I’m here in kikrland WA state, you are welcome if any memebers wanna joint me on a ride to get this feel.

Thanks

wheels: 19x8.5 front and 19x9.5 rear Niche Milan
Tires: Michelin pilot sport A/S 3+ 255/35ZR19 front and 285/30ZR19

Old 07-29-2018, 10:33 PM
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Very worn out shocks!
Old 07-29-2018, 11:19 PM
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it is also possible that the OE shocks were calibrated to work with OE wheels and tires ... and that the new
parts has a much higher unsprung weight combo which exceeds the shocks' designed threshold. how
did your old wheels/tires feel in terms of ride comfort and handling?
Old 07-30-2018, 12:38 AM
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Originally Posted by raymond g-
it is also possible that the OE shocks were calibrated to work with OE wheels and tires ... and that the new
parts has a much higher unsprung weight combo which exceeds the shocks' designed threshold. how
did your old wheels/tires feel in terms of ride comfort and handling?
The ride was really smooth when I had my original wheels/tires on, I mean on the same highway, but today when I was driving on that flat highway again. I could feel the front end is little bouncy from the steering wheel. it's never happened before, and I have air suspension though.
Old 07-30-2018, 12:39 AM
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Originally Posted by Plutoe
Very worn out shocks!
you mean my air suspension have gone bad?
Old 07-30-2018, 12:50 AM
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I have just measured the distance btw my tires and my fenders, it turned out the driver side rear air suspension is 3/4 to 1 inch lower than other three. Could this be the problem? I also tried rising and lowering the suspension, it seamed no problem as well.
Old 07-30-2018, 12:59 AM
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my bad. I was parked on a uneven road, the distance were the same, and I have no problem rising or lowering the air suspension. any other causes? like defective tires?
Old 07-30-2018, 01:37 AM
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Originally Posted by PCCLS
my bad. I was parked on a uneven road, the distance were the same, and I have no problem rising or lowering the air suspension. any other causes? like defective tires?
Most likely tires or balance.
Old 07-30-2018, 04:40 PM
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Whoa! People are jumping the gun too quick here.
Have the balance double checked (since you just had em put on and all).
John

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