W210 shaking / shudder

[steve_k243]

Hi peeps.

I have searched for the answer to this one, and I hope it's simply wheel balance.
The car shakes quite badly at 75+ getting worse with speed. There is a hint of shake at 40-50.
Feels like it's coming from the rear.

Engine mounts appear ok, and there is no noise from the prop or diff.

I have a newly refurbished set of alloys from an A'garde of the same year so will get them fitted/balanced.
Question is does anyone know A-any other likely causes and B-where I can get the wheels changed and balanced by someone who can do it properly! I live in South Herts.

I had a quick peek at the Lexus forum and several there mentioned on car balancing or finding a fitter who does Supercars.

 

[television]

It is 90% sure to be a wheel balance fault, the prop shaft center bearing could be worn and easy to check, many firms like qikfit cannot do it well

 

[LYNALL]

Jack up each wheel in turn and check it for out of round or any damage, by spinning, make sure to chock other wheels!



Lynall

 

[turbopete]

as Malcolm. either wheelbalance or propshaft centre bearing. however it could also be a lump on a tyre where a tyres carcass is starting to de-laminate (more common than you would think!) or (very unlikely or you would know you had banged one recently) a buckled wheel. you can check for tyre de-lamination by jacking up and spinning the wheels. a de-laminating tyre will have a visible lump on it as it spins!

 

[steve_k243]

Thanx all

Will do the wheel swap this week and have my usual mechanic do the centre bearing and rear subframe bushes for peace of mind.

 

[230K]

Hi

Change one wheel at a time to see if you can find the problem one. Some muppet tyre fitters do not balance rear wheels socheck that they have even been balanced. A wheel with a kink in it can be balanced on a machine but from experience will cause vibration on the road.

230K