@JST, it over charges the battery causing it to fail early. Basically, it adjusts the charging cycle based on the learned performance of the battery.
@JV, I think it may be an AWD issue more than an E90 issue. I still haven't done the oil pan gasket on the e46 because the entire front drive system has to be removed.
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Josh (PA) -
'19 X5
'17 991.2 C2 Cab
'11 135i Convertible
'11 328xiT
'09 X3
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