Last post on Oct 14, 2010 at 6:25 AM
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Audi Q7, SUV
#60 of 63 Audi Q7 trailer hitch electrical problem
Mar 08, 2009 (7:18 am)
I recently had a dealership add an Audi hitch, and electrical harness with 7 to 4 pin adapter to my 2007 4.2 Q7.
When I hooked up my trailer most everything works (turn signals, hazard lights) except the brake lights. When starting the car I get a message that the brake bulbs are out, first on the left side, then both.
Notes: The trailer lights are brand new, and work fine on a friends Tahoe. They are standard bulb lights (not LED).
I bought a second 7 to 4/5 Pin adapter and the problem exists with it and the one supplied by Audi initially.
Has anyone experienced this issue? Any suggestions?
#61 of 63 Re: Audi Q7 trailer hitch electrical problem [topoftherock]
Mar 28, 2009 (10:22 pm)
I had same problem with Tiguan when I installed trailer control box to complete VW pre-wiring.
Take it back to dealer and tell them to log on to vehicle computer and activate trailer option as right now system doesn't know there is trailer. There is several locations they have to go through to complete activation.
I have my own VAG-COM cable so it is kinda sad to see service guys don't know crap about the brand they represents.
#62 of 63 Audi Q7 4.2 Quattro
Oct 14, 2010 (6:25 am)
Audi Q7 4.2 Quattro
I bought Audi Q7 last year Sept 2009; I used the Car from Sept to April 2010.
I packed the car and went for six months business trip , my wife only warm the car every 3 days without test driving it.
Now she is experience problem with the car.
Q7 Starting problem
The Speedometer light is off
The boot only closes manually.
Mechanic has checked every fuse is working,
When I put the ignition, its on but cant start the car and the Speedometer light signal is off.
Pls I need some help or direction