Originally Posted by BMWM.D.
The "031" number is MTF-LTx fluid, which is correct for the manual trans. I'm not sure about that "345" number, though. The diff oil specified by BMW for the 1200 mile service should be 83 22 1 470 080 or possibly 83 22 1 467 993 ( same stuff but different # depending on how it is billed out).
I did not have much luck searching for that part#
If the 031 is the MTF-LTx, I hope the 345 is the differential fluid???
Now I'm worried...
Appreciate you looking it up for me. Think I should go back?