ghead As a new member of the forum I would like to know if anyone has any ideas.
I have recently changed the back tyres on my 523SE after a puncture and since then have had an annoying vibration at speeds of 70mph and above. I have had the tyres re balanced twice and also put the new tyres on the front. there is a slight wobble on the steering at 50-55 but that then dissapears when the vibration from underneath kicks in at 70ish.
There is no sign of this under braking or accelleration and at lower speeds the car is superb.
Why could this happen since a tyre change?? is it mechanical?
Any help would be much appreciated.