Bought my X3 used with 80K miles on it 1.5 yrs ago. I started seeing the combo of 4X4, ABS, and Brake lights coming on and took it in. I’m told it’s an issue with the transfer case, and the mechanic pretty much said it would be a few thousand to fix and not to bother. He said when those lights are on it indicates those systems aren’t working, and that seems to make sense as a few random times when these have been on I’ve also experienced some really odd fish-tailing, even when I didn’t think I was accelerating terribly aggressively. I’m not necessarily doubting my mechanics diagnosis or prognosis (although I have pretty much zero knowledge about anything car-related), but since it’s worst-case scenario thought I’d see if anyone had any wisdom to share. I’ve seen a couple other places say to try changing the TC fluid…?
Any insight/advice welcome. Thanks!