Issues with Wheel Balancing

[junglie]

I have just put 4 x new tyres on my Mercedes C320 Estate.

The issues are:

- Steering wheel now about 20 deg left when the car is driving straight ahead.
- Shaking through both steerring wheel and chassis.

I have taken the car back and they have had a look at the alignment which apperas to be spot on at the front and 1mm out at the rear. They have straightened the steering wheel. They have also had a go at balancing the wheels again.

I am still getting shaking through the steering wheel and chassis even though they have done a re-balance.

This is really annoying as it is ruining driving a great car.

Does anybody have any ideas?

I am planning on taking it elsewhere for them to start from scratch to see if they can solve it - are there any recommended places in Somerset (near Yeovil ideal).

Thanks

[Ozzie Osmond]

It is impossible for a change of tyres to result in steering wheel being off-centre.

Did they try to adjust the tracking when you had the tyres changed? If so, they could have put it out by "correcting" the wrong side of the car - which is easy to them to put right by next changing both sides by a similar amount.

The shaking is very odd. Any or all of,

• Wheels not properly balanced after new tyres fitted.
• One or more tyres "not round", which will cause shaking even if the wheel appears perfectly balanced
• Wheel not properly fitted to car.

[v8will]

Do you have original Merc wheels or aftermarket fitted? If it's aftermarket wheels then it sounds like the hub reducer rings (spigot rings) have not been refitted. That or it's a problem with the tyres, how much weight has been fitted?

[junglie]

Tracking is concerning me - I will have a look at it.

Balance - they have been balanced twice now which is worrying. Hard to say regarding if the tyres are perfectly spherical - looked ok on the balancing machine but that does not turn at many RPM. The wheels seem to have been fitted correctly also.

Annoying this one!

[junglie]

Alloys are original MB 17" 5 spokes so should not be the reducers - had that issue on an old BMW of mine when switching to metrics.