Hi Ive got a 2010 Q7 with park assist, when I switch to reverse the display comes up and I can see from the camera and 2 seconds later it switches off? I can't find any settings to adjust it so I'm a bit stumped. Is it once again a sensor issue?

Hi Tim...welcome to the Forum

The first thing I would be tempted to do is to put the transmission in reverse gear, engine off, handbrake on, ignition on so the camera comes on and then go to the rear of the car and see if the reverse light is on....if not, then it could be a faulty reverse light switch, which the camera/park assist would more than likely get a signal from.

If no joy there, I would advise scanning the system to look at the park assist system in detail (live readings, fault codes, etc)

Let us know how you get on with it.

Cheers  Trevor