Hey, I know it's a bit of a late reply, but here's some good news for everyone!! :) :) :)
I found a part that fixes this problem. its very easy to change this part, it goes inside the headlight, just take the back cover off and you have access.
So happy its all sorted!
http://www.ebay.co.uk/itm/Audi-Q5-Xenon-LED-Headlight-DRL-Control-Ballast-Unit-8R0907472B-Repair-Fix-/121643746611?
:) :) :)