Probably a stupid thing on my part, but I need help.
Ok Just had my new rims put on and discovered an issue on the way home.
Fronts are 8 inch 235/45 tires with 35 offset
Rears are 9 inch 255/40 with 42 offset
cars a r32 btw.
While driving home the torque split guage was basically playing silly buggers and putting power to the fronts on light throttle in 3rd and 4th. Noticed this happening a few k's after leaving the tire store (normally only activates on heavy throttle). Pulled over and pulled the fuse, drove the car home in rwd mode. Now I asked the tire store if the different profile tires would cause an issue with the attessa system, they said no, since they were the same rolling diameter.
Well the rolling diameter of the fronts seem to be around 645 mm and the rears seem to be about 638mm, What I'm wondering is this enough to stuff up the attessa system or is the problem possibly something else?
I still have 4 reasonable 235/45 profile tyres on my old rims, was thinking of putting a set of them on my rear rims to see if this was the issue.