matt weiman

My Q7 is the 3.0 turbo prestige edition. While driving the warning came on in the center of the cluster saying the left front turn signal wasn't working. Checked it and when the left turn signal gets turned on it flashes once then stops. I've seen some other threads talking about moisture inside the blinker itself on the lense and this is also the case here. I've not found anything about a single blink then stopping. Not sure where to start or what to look at.

dreadlocks

LED turn signals? You could try plugging the left into the right side and see if problem follows it.. if so its likely the light, if it still happens on left after swapping sides then could be wiring/module related.

matt weiman

Yes it is an led light. Before I could even get to it, it started working on it's own and the warning shut off in the dash. Not sure what exactly would make it blink once every time the lever was pushed while the dash would say it was not working, then for it to just go back to normal on its own?