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      01-30-2013, 10:49 AM   #6
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Drives: 2015 Alpina B6; 430i; X5 40e
Join Date: Jul 2010
Location: Orange County, CA

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Quote:
Originally Posted by ACZakka325i
It's impossible to have LSD in an AWD car. Maybe in a 4x4 where both axles are locked.
I don't think this is correct. My understanding was that many AWD systems are FWD based with LSD in the back.

BMW AWD systems are RWD based (until the next generation of the X1). I don't know how the X1 AWD system works. I believe that because of the way BMW DSC works and the fact that the M Sport use DSC torque vectoring (performance control) that using a donut spare is safe for emergency use (low speed, short distance).

I definitely plan to do more research since I plan to remove the RFTs and carry a donut.
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