Quote:
Originally Posted by Dylan86
AFAIK, it's as simple as it "should" be. Drain via lower drain plug, then close the drain plug and fill via fill hole, and wait until it "overflows" ever so slightly. Put the top plug back in, whalaa?
I haven't done one on this car, yet, but I've done several on trucks and old model Audi's/BMW's and was as simple as above..
I could be way off left field, though..
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There is no drain plug on the BMW diffs. On the open diffs, you remove the fill plug and withdraw as much of the fluid by suction as you can. Then fill to overflow. It'll be interesting what you or I find on this one.