Hi I’m new to this forum, I just had a question about my center differential on my 2007 STI. I recently was at the Subaru dealership for a service and was told that my wheels were locking in reverse and with turning at slow speeds. I had not previously noticed anything of the sort. I was told it would be around $4,050 to have the center differential replaced. When I picked up the car after getting it serviced, I noticed that the DCCD was in auto and the dial setting was in the locked position. Is it possible for the center differential to be locked when the DCCD is in the auto mode or is it only locked when in the manual mode and in the locked setting? Sorry probably a dumb question. After watching some YouTube videos, it seems that when the center differential is locked, it would cause the binding. I asked if the mechanic at the dealership would be able to show me the sound he was talking about. (Because when I got home, I took the dial setting out of lock and tried to replicate the sound, but did not notice anything) the DCCD was left in auto while I tried changing the setting to replicate the sound. I just want to make sure the center differential actually needs to be replaced and the binding sound is not due to setting the DCCD to lock before I spend over $4k getting it fixed. Any advice is greatly appreciated.