Quote:
Originally Posted by Pro55
The reason you only put the rear axle in the idrive is because it then knows what you have on the front. If you put the 20 summers it gives you the staggered set up. Change it to winters and it automatically assumes a square set up.The rear axle is always the widest for the staggered set up so it knows. The only time it would be different is if you go non OEM and have some completely different set up.
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Are you assuming this (that winter 20" setting configures as a square setup internally) or is there formal BMW documentation somewhere per this description? Would love to have something formal rather than guesses and conjectures.