06cls55amg

So running out of parts to replace trying to figure out this low speed wobble in the steering wheel, and vibration at highway speeds,vibration is visible in the passenger seat/entire car . ( 06 cls55 81k miles)

Literally just replaced all 4 tires, and road force balanced, followed by alignment on a newer hunter machine, new meyle rotors akebono pads, new meyle trans andengine mounts, all front suspension components have around 35k on them, and seem solid. Not getting any play doing the usual tests.

double checked the bearings up front for play, everything seems perfect, seem to spin freely, only thing worth noting is that it does seem like the pads touch/drag the rotor in one spot?

Only OTHER thing worth noting is that i did just have the threaded portion in right rear subframe rip out of the frame. Which is now repaired , but before i take the car off the lift, wanted to pick your guys brains.

Bought 2 meyle LCA bushings i might just do for hahas, other than than that im out of ideas, bent spindle, sticky caliper?

Car does pull slightly to the left and will get another alignment done, but would like to get this issue figured out before that.

Yuille36

Did you ever check the rack and pinion tie rods ends for play, maybe the bushings holding the rack in place are bad? Since everything else was replaced.

Sam.P

Shouldn’t be causing wobble in steering, but flex discs and differential / rear subframe bushing can cause vibration/wobbling. Worth checking if you didn’t already

Yuille36

I was trying to rule out all possibilities, since he checked everything else. I had a wobble in the my 07 E63 at highway speeds going over bumps, and it turned out to be bad rear subframe bushings.

06cls55amg

how does one check the bushings on the rack for wear? i actually have a set sitting on my shelf from when i was trying to figure out another issues, which ended up being my rear tires.

as for the flex disk and support bushing , disc looks mint, no cracks or anything, already replaced CSB ( forgot)when i did engine trans mount, due to shutter under hard acceleration. this wobble vibration is not consistent either, sometimes its tolerable, sometimes i want to just send the car to the auction and have someone else deal with it. *****s driving me up a wall, running out of crap to replace. Forgot i hit a pot hole the other day, was reminded of it just now when i was checking my wheels out as it has a small dent in the inside portion of the wheel.

Gonna get that sorted first, but ive had this problem before the pothole.

Sam.P

No worries. I was saying that rear end bushings shouldn't cause steering wobble, wasn't addressing your comment

Yuille36

Understood..... thanks

das eighty

I'm having a caliper replaced right now with a few seized pistons. Causing wobble at speed and obviously under braking due to warped rotors now. Hoping this rectifies my same issue.

06cls55amg

might take mine apart and give them a thorough cleaning. i literally just did the rotors and pads a few thousand miles ago, and dont remember having any issues with compressing the pistons unfortunately. With that said my passenger wheel is harder to spin freely compared to drivers, going to look into the wheel bearing on that side.

Yuille36

I had movement in the rear subframe at highway speeds and reported it to my SA at MB of Arlington, they raise the car and use pry bars to move the rear subframe for play. I told them from the start, that I believe that the subframe bushings are bad, as I'm getting movement in the rear.
And they confirmed that my prognosis was corrected, and replaced it under warranty.

06cls55amg

Im hoping to AVOID anything subframe related. other than the crap ive already dealt with. my passenger outer wheel bearings grease was a little brown, think i might have under tightened the wheel bearing, cleaned the grease, repacked bearing, re tightened. wheel seems to be spinning better. wont know til i drive home. ordered another set of bearings to have on stock. fingers crossed.

StarvingArtist

If the brake pads don't slide easy they will heat up the rotor and cause this. If that was it, you can tell by lightly touching the brakes at speed. you will feel it in the steering wheel.
Also might want to recheck the balance. I had a guy put the weights on the wrong side once and made it twice as bad.
Jack up the front and put a block next to the rim, set a wrench or something almost touching the edge of the rim and spin slowly to see if the wheel is straight. Do both edges, inside and out.
FWIW I only get about 35k out of my thrust arms and upper ball joints.

equitiesguy

Ever check your front upper ball joints? They can cause a vibration like you're describing.

06cls55amg

maybe 5k miles on them, all meyle parts, my old ones are fine as well..

literally any/every wear item up front has been done for the most part. played with the wheel bearings, no change in the shimmy/wobble in the steering wheel. Also worth noting that when braking i still feel the vibration/wobble.

at around 25-30 mph it starts as a wobble in the steering wheel, the faster you it starts to turn into a vibration seems like.

fml, ready to bring the car to the dealer and have them figure this **** out.

seems like either way im going to be dumping money into the car to figure out whats wrong.

FunkTron

subscribed....for paranoia factor

06cls55amg

going to get the wheels road force balanced and report back. god know new england / CT roads are ****, the last 2 places dd not road force balance them. fingers crossed.

Yuille36

Could there be a possibility that you have bent wheels?? Trying to eliminate all possibilities.

das eighty

Adding to what Yuille36 said, have you tried different wheels? I'm going to assume the aftermarket wheels you are running have the proper center bore machined or the hub-centric rings are in place. If it's the later, are they cracked/broken? Just another thought.

Yuille36

Great insight, I never thought about that. If you have aftermarket wheels, and they aren't centered on the hub using hub-centric rings or the wheels themselves aren't hub-centric then all the weight is sitting on the lug bolts. And most likely moving around under load.

06cls55amg

been running the same wheels for 5 years , verde v99 axis, many members run them. as for bent wheels i have no idea, would assume that the last 2 places that balanced them would notify of that?

Yuille36

Last Friday, I had new rear tires mounted on my 07 E63, when the tire was spun on the balancer the tech noticed that the wheel had a slight bend on the inner barrel, and the other wheel had a very minor bend.
I immediately went the my favorite wheel repair shop and had them straighten both. So you could have a bent inner barrel, as it is the weakest part of any wheel.

06cls55amg

well hopefully 3rd times a charm, unfortunately only place that does RFB around me is town fair tire, going to tell them in detail my issue. hopefully they find something. visually i dont see anything bent, but who knows. ill report back tomorrow.

Yuille36

Visually I didn't see anything wrong either, until it was spun. I tiny wobble that would be magnified at speed.
And since I only work 10 miles from home, and in traffic the car doesn't get up to speed to notice the wobble.
But I had to get it fixed and the grand total was only $225 for two wheels.

06cls55amg

somehow my falkin azzenis have high spots, you can see it when they are balancing the wheels. wheels are perfect, front tires are shot. not even 5k miles lol.

Yuille36

So you found the culprit to your vibration issue