As the other fellow wrote, I don't know what year YOUR X5 3.0i would be.
My Euro X5 3.0 d is a 2002 and has the NV125 transfer case (not iDrive). Transmission on mine (diesel) may not the same as the 3.0i gasoline (input torque and ratios are different between gasoline and diesel)

• roughly 3 liters/quarts total for Front/rear diffs (Redline 75w-90 Gear Oil, GL-5)
• about 1.5 to 2 liters/quarts of Manual Trans fluid (good - Redline ATF or best - Redline MTL)
• transfer case (max 1 liter/quart) of Redline ATF (good) or Redline MTL (best)

Other great news - if you have a manual 3.0 i, you can now once again get the UUC Evo 3 short shifter for your car. I just pre-ordered it for my car (same shifter for diesel & gas 3.0). Rob put it back in production - treat yourself !!!

Greg

I'm a non X drive 2003 model, so Redline D4 ATF for transfer case for me!


I looked up on RealOEM and it said my trans takes MTF-LT-2, which I've found on ECS Tuning and it shows it is a 70w-80 trans fluid? Does that sound right to anyone?


Great on the diffs and transfer case though with the capacities though! Do I need new sealing washers for the drain/fill plugs or new plugs at all to prevent leaks?


Lastly, great info on the short shifter, where can I find one?

Not if it is based solely on a parts book diagram of a label. Check the tag on the transmission. Whenever a transmission didn't shift smoothly (ie it was notchy) the manufacturer switched to ATF. And tagged the transmission. Could be LT2 or ATF.