I have problem with my 2002 4.4i X5. I bought the X5 knowing it had a rebuild transmission and new torque converter. Great. After a while driving a got the hard 2-1 downshift. Software status is uptodate so I checked the fluid. Needed a top up. No problem. Got 1 liter ESSO ATF LT 71141 from BMW and topped it up. After around .5 liter it was more than full. Now comes the problem. RED ATF fluid came out. Not the clear ESSO ATF LT 71141.
Now I'm not sure what to do. The transmission was shifting awesome, except the 2-1 downshift. So whatever fluid was in there was doing its job. Not sure if I should be concerned about the red atf fluid. But what I am concerned about is that I topped it up with another (the correct) fluid. Only roughly .5 liters though.
What should I do? Leave it? Full flush?
Thanks for any help!