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tpsc3crt · 04-08-2018, 11:40 AM

The difference in tire height/width causes the wheels to rotate at different speeds. Xdrive is sensitive, and wheel sizes have to be within 1% difference or something like that. Otherwise the transmission can become faulty.

04-08-2018, 11:40 AM	#7
tpsc3crt New Member 2 Rep 19 Posts Drives: 640XI F12 Join Date: Mar 2018 Location: NY iTrader: (0)	The difference in tire height/width causes the wheels to rotate at different speeds. Xdrive is sensitive, and wheel sizes have to be within 1% difference or something like that. Otherwise the transmission can become faulty.
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