Quote:
Originally Posted by stltri
Was reading some info on the ISTA+ regarding recommended fluids for the differentials. I know different DIY'ers have used different kinds. But I was curious about any drawbacks to using cheaper alternatives over the more expensive fluids recommended by BMW (for e70 N55 motor, per ISTA+ updated 2016) before I tackle this DIY:
1. Front differential: Hypoid Axle Oil G2 (BMW part no. 83-22-2-413-511)
2. Rear differential: Final-Drive Gear Oil Saf-Xo 832514 (BMW part no. 33-11-7-695-240)
3. Transfer case: Transfer Case Fluid - DTF 1 (SAE 75W GL-4) (BMW part no. 83-22-2-409-710)
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Called SilverSpring BMW GetBMWparts counter...
You got the transfer case fluid part # right, and that is the only fluid to use. I was told need only 1 500ml container
Front differential - was told to use part
83 22 2413511 , need 1.25l via two $45 containers
Rear differential - was told to use part 83 22 22 95532 , same capacity, about the same 2 x $45
Called Northwest BMW parts counter and they would not confirm/give out part #s over the phone. I am a bit confused as last time these fluids did not cost me $300 and can't recall where/what/how much I bought.....