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      05-05-2013, 03:26 PM   #1
rantarM3
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Drives: E90 M3
Join Date: Aug 2011
Location: Florida

iTrader: (3)

Differential Fluid Change and Vehicle Position

Some of you may have noticed that the E90 M3 has a rake such that the side jack pads behind the front wheel sit about 1" lower than the rear ones. So if you put the car on a lift or on jack stands, the bottom of the car will be level with the floor whereas if you have it on ramps or on the ground, the bottom of the car will not be level.

So the question is whether this matters when changing the diff fluid. I was planning on doing it while the car is on a set of ramps (all four corners raised the same amount) but that means the car would be slightly tilted towards the front. I've changed my engine oil this way and had no problems.

Hope someone has some insight as I could not find anything on TIS about this.