need help traction control system

[dean r]

just had new tyres fitted to car and now my traction control light keeps comeing on when wheels are not spinning but if i turn system off engine spins up fine and any help cheers

 

[Ferryman]

Check with VCDS what kind of reading the wheel speed sensors (especially the wheel which got changed) displays. Most likely one of the sensors got damaged or disconnected during the process.

 

[dean r]

Would it make a difference haveing bigger wheels on bk than on the front if you know mate Cheers

 

[Ferryman]

Yes if the radius is different.
What is the size of the tyres you have fitted?

 

[dean r]

On the front I got 205/40/17 and bk got 225/45/17 mate

 

[Ferryman]

The difference in circumference between the front and rear tyres is so large (12.1cm) that the ABS/ESP controller sees the rear tyres spinning ~ 4mph slower than the fronts. Even the car is FWD only it will mess the ESP.

The only way to fix this is installing tyres with the same circumference.
Or disable the ESP.

 

[dean r]

Cheers mate will book it in for new tyres on the bk then thanks for the help

 

[dean r]

Cheers mate had them dune and sorted it out cheers