I’ve got an 06 E90 323i and I’ve been having trouble with my trans going into limp mode. I took some advice and decided to check the fluid and it was pretty dirty so I got some new fluid in there with a new filter today, it shifts great now but after driving it for 20 mins or so the problem popped up again. I had to have it towed last week because it got stuck in limp in the backroads, I reset the code and it went away so I could get it to the mechanics.
The fault code was 4F8D, I’m not sure what could be the problem, it only ever puts it in limp after driving it for a while, it’s been pretty hot here around 27-29 degrees Celsius, I was wondering if the heat had anything to do with it acting up as my trans feels good. Maybe I need a different oil for the temperature? I’d rather not shell out 3k for a new trans if it’s something I can fix for cheap
) I’ve seen a few posts about replacing the mechatronic sleeve or my solenoids, any help would be great
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