Q7 trailer hook up electrical problems interconnectivity [Archive] - Audi Forums

: Q7 trailer hook up electrical problems interconnectivity

04-22-2012, 07:24 AM
My Q7 has a towing package. I nneded to hook up a trailer and at the dealer I purchase the 7-pin connector and they told me I needed to buy an adapter from 7-pin to 4 flat connector. When Ipurchased and connected the adapter and hook up the trailer the lights on the trailer flick and the Q7 tell me that the lights are not connected. I pulled up my F-150 and connected the trailer and everything works well.
What is the problem with the Q7 and trailer hitch?

09 Q7 3.0 TDI
05-06-2012, 08:00 PM
Check your ground wire on the trailer. I have the 7-pin hitch and use the same 7-pin to 4-flat pin connector you have and my utility trailer lights work fine.

05-15-2012, 08:27 PM
I don't know if I'm going to encounter the same problem but yeah I got 2009 Q7 Audi and want to install this hitch I found online... Just thinking twice to hear any opinion you may share. Just newbie in this forum and Audi world.
Search results :: Hitch Anything (http://www.******************/search.php?mode=search&page=1)

07-02-2012, 06:14 AM
sorry for the broken link guys... referring to this one.
2009 Audi Q7 Curt 2 Trailer Hitch - Class 3 Hitch 13220 Quattro $154 (http://www.******************/2009-Audi-Q7-CURT-2-Receiver-Class-3-Hitch-13220-Quattro.html)