Quote:
Originally Posted by Bee Pee
This is 2nd RWD beemer I've had with a quaife. 1st car [e91 n54 6mt] didn't have e-diff feature and can confirm it never had problems of sensing slip and engaging. My father lives out in the sticks and there's a big hill near his house. One v icy winter, I was following an Audi SUV up the hill. Audi had to stop to let oncoming traffic down the way. Audi lost its traction despite 4WD and struggled to move, whereas my e91 [c/w winter tyres] re started up the hill w/o issue. Drove round the stricken Audi !!!
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I have seen it happen on Quaife units. It is only when one tyre has almost no traction. On the E91, it was possible to use the traction control to give the Quaife the necessary preload to start locking up.
The BMW Performance LSD is not a TorSen unit, but a clutch pack differential.