Uploaded July 2025 | Updated September 2026, 31 minutes ago

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Keep your rear differential happy by changing fluids often, especially if it sees track use.

2L of 75w140
New plugs
Fluid transfer pump

1) remove fill plug
2) remove drain plug
3) install new drain plug
4) fill diff until it leaks out of fill
5) torque to spec and done!

Takes you about 10 minutes

#e90 #e92 #e9x #m3