Quote:
Originally Posted by Polo08816
The interesting thing is the front and rear diffs seem to require different BMW part numbers for diff/gear oil.
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Not so. You had me worried there Polo. I just checked BMW TIS.
Rear: BMW Synthetics OSP 83 22 9 407 768
https://www.newtis.info/tisv2/a/en/f...th-lid/1EFiDSn
and
Front: BMW Synthetics OSP 83 22 9 407 768
https://www.newtis.info/tisv2/a/en/f...ential/1Tb0rtF