[MSPORTWORLD]

Has anyone received the four wheel drive fault message before? If so what was the diagnoses?

F90 going to the dealer in a couple days I'll keep y'all posted.

[brava09]

Got that from a burnt fuse, but together with many other fault messages

[MSPORTWORLD]

Originally Posted by brava09

Got that from a burnt fuse, but together with many other fault messages

Thanks! I've got a picture of the warning but I'm having issues uploading with the app

[Used2be]

Originally Posted by MSPORTWORLD

Has anyone received the four wheel drive fault message before? If so what was the diagnoses?

I haven't, but I have a concern over the x-drive transfer case. I don't have any experience with BMW all wheel drive, and with the need to keep tire sizes appropriate for the transfer case to avoid destructive wear, looked into the costs for replacement. getBMWparts quoted me $3,044 for the case and a $1,140 core charge. But of course BMW doesn't sell the parts separately to repair it, so why the core charge? What does BMW do with the worn out cases they get? Am I paying the $3K for a rebuilt transfer case?

I look forward to your update.

[Aronis]

I have to say all these questions over uneven sized tires and wear of the differential etc seems so odd. I thought the differential was designed to help the car deal with different rotational speeds of the wheels with turning and such. So if you are going straight and there is a different wheel diameter then does not the differential deal with that and not know or care if the the car is turning or going straight? It's just all very suspect.

Just how perfect do the matches have to be?

Will I damage my car if I turn too much?

Should I stay on straight and level roads?

Holy Crap, if I am in the left hand lane most of the time then the car is on the left of the crown of the road all the time....am I damaging the car?

I just don't know.......Never heard of this issue on my prior Audi's and Audi has had AWD for a 100000000 years.

Mike