In Reply to: How do we drain / fill the DIFF fluid ?? posted by Fred 1988 735iL on October 09, 2001 at 20:57:42:
The Diff oil should be changed on every Inspection 2 Service.
It's relatively easy to do....
You'll need a 17mm Allen Key and a small piece of pipe to act as an extension.
Make sure the car is on flat ground, then remove the lower plug and Drain Away!!! replace the gasket around the plug and reinstall, then remove the upper allen bolt and refill. The oil level should be filled until it starts to "Dribble" out the top hole, then reinstall the top plug and wipe away the Excess, and there you have it. Do not panic if your diff is slightly "sweaty" in oil as they all do it to some degree and it's a more complicated fix ....For another time!!
All this talk of Miami Babes, Holes and Dribbles....I'm away for a Cold Shower, See Ya!
was I supposed to do it? i own the car for 2 1/2 years ...
PS: I'm so grateful this forum exists :) lifesaver !!