Hi

Car is still jerking when accelerating and clunking.

Garage is saying that the transfer box is ok, but suggests that the staggered tyres size is the problem. I have checked my VIN, it inidciates staggered size 18 tyres are correct for the X3.

The tyres however are not BMW star rated.

I have the following error codes 5DEA and 5F1E...

Is the garage trying to fob me off, or can non star rated tyres really cause such a major problem.... is there a diagnostic process than could establish if transfer box is the main issue ????? Is it likely to be the chian in th transfer box that is worn and needs replacing ??

Cheers

gary