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      11-07-2012, 07:56 PM   #11
raceyBMW
king of the hills
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Drives: 335i coupe
Join Date: Dec 2006
Location: Denver, CO

iTrader: (1)

Garage List
1994 530i  [4.25]
2007 335i Coupe  [4.07]
http://www.bmw.com/com/en/insights/t...erential_brake

Its this. Not sure when they came out with it in the E9x, but I remember it being somewhere around the time the 1 series went on sale here, which was in '08.