I have a 2002 A4 1.8T Q. Just bought Headlights E-code Projector Angel headlight from part4euro and I am getting hyper flash on my turn signals.
Original headlights came with 3357 signal bulb with dual filament and aftermarket light requires PY21W single filament bulb. These lights were plug and play, however they are not working. Did anyone have same problem and what was the fix? Thank you for your help.

 

not sure. call parts4euro, they probably would be more help.