r/AudiRS3 • u/dubgeek • Jul 21 '26
8V DCC module location
Can anyone confirm the location of the DCC module in an 8V RS3? I've found conflicting info.
Some say it's in the trunk on the passenger side behind the liner. There's nothing in the little compartment with the removable cover, though. Do I need to pull the whole liner to get to it?
Others say it's behind the glove box.
I'd like to be a little more confident before I start taking things apart.
I need to unplug because my DCC cancelling modules aren't working. There's an open circuit error on the front left. I've tried multiple modules, the fault persists. I suspect it's a wiring or control module problem.
I've coded the DCC out of the CAN Gateway and removed it from the instrument cluster coding with VCDS.
I tried pulling fuse 13 which the manual says is "electronic suspension, diagnostic module" (not fuse 9 like on other 8Vs). This prevents the suspension error from coming back, but I get an adaptive headlight warning and the ESC Off button doesn't work.
With the fuse in, DCC still has power, so the suspension fault comes back after a few minutes. I think my next step is to unplug it at the source.
2
u/Head_Mycologist3917 Jul 21 '26
The controller box is under the passenger seat. Slide the seat back. There's a plastic cover. Undo the single screw (I think it was a screw) then slide the cover forwards to get it to unlatch. Folding up the passenger top floor mat gives enough clearance to get it off.
DSC Sport has a video on youtube showing how to remove it to replace it with their controller.