Drewloera

Recently Ive noticed my car become much bumpier than I ever remember it being. I was attributing it to the recent work on the freeways, But I alteady ruled out that possibility. Seems more noticable at high speeds i can literally see the whole dash and seats shake it dosent feel to bad but it is very annoying. Just replaced motor mounts, and did my front rotors. My rear tires are getting kinda worn can this be the cause.

armaniE55

90% chance it's your flex disk. Also did you buy OEM rotors? Do you notice it more when the car sits overnight and then you hit the highway?

Put the car on a lift and check the bolts on the flex disk, if you can see rust/brown lines coming from the bolts then it's a sign the the flex disk is going bad.

Armani

Drewloera

Yes everything oem, was on a older fourm assessing the issue and I think it might be tires my rears are looking like nascar slicks...lol I hope it is just that....

Strigoi

Have you hit any nasty pot holes? You might have bent a wheel.

Drewloera

I live in LA. Potholes everywhere ..

armaniE55

LOL, well I would start with new shoes and have them check the rims / high speed balance.

check front end bushings,ball joints, wheel bearings, sway bar links, tire rods,etc etc

then

B. Flex disk

maxwerks

wouldnt the flex disc only cause vibration upon acceleration only ? Not a bumpy ride ...also bent rims will cause vibration , not bumpiness ... when were the shocks changed .. at any rate , slicks in the back would cause all kinds of havoc so change these first , and go from there .

armaniE55

True statement on the flex disk. However my car give me shaky feel to it until I changed my flex disk. (arm rest, center console, seat shaking) annoying as hell... those flex disk can turn into rocks with age.

Armani

Drewloera

Thanks for all the input going to check flex disc. Hopefully its just my rear tires

Drewloera

https://mbworld.org/forums/w210-amg/337996-60mph-vibration.html

maxwerks

check them all , including flex disc ... I was just responding to " BUMPY " , to me bumpy has to do with shocks, joints , sway bar joints , spring perch pads ( which hardly ever fail ) , all others will vibration to a degree or another . best of luck

armaniE55

+1 and most important let us know of your findings


gl

Drewloera

Just did my rear tires. They were the main culprits for the harsh ride.