Hey All, just joined because I saw that the AWD fault is a common issue with many. My RS has about 5k miles and started showing the AWD fault error where I was unable to select drive modes and I took it to the dealer, but they couldn't find anything wrong or replicate the issue especially since restarting the car erases it. I told them if I get the issue again I will stop by while it's happening so they could do a live scan with their Ford software. So when it happened, I drove it in and had them do a live scan with the car on and issue present and the mechanic contacted Ford regarding it and apparently my differential was leaking so they ordered a completely new one to replace it with per Ford's fix for the issue.
I just wanted to update others with this fix for mine as I have seen other people say it happens when it's too cold(it's 80's F here) or people mention it has something to do with flaps as well. I am taking it in next week for them to replace the differential and will update if the issue disappears for good.
I just wanted to update others with this fix for mine as I have seen other people say it happens when it's too cold(it's 80's F here) or people mention it has something to do with flaps as well. I am taking it in next week for them to replace the differential and will update if the issue disappears for good.
