2009-2015 Cadillac CTS-V General Discussion Discussion, Where is the Drain plug for the Rear Diff? in Cadillac CTS-V Series Forum - 2009-2015; I see the lines to and from the cooler but what does the plugs look like? I can seem to ...
Automobile(s): 2013 CTS-V Wagon, Glacier Blue, Red Brembos, SB wheels
Re: Where is the Drain plug for the Rear Diff?
Drain plug is on the bottom, pointing straight down. Fill plug is on the passenger side of the diff. Both take a hex bit driver. Always unscrew the fill first to make sure you can get it filled before draining it. Not sure where the cooler connects but I think it's through these two locations.