GENUINE Xenon Headlight Ballast Control Unit Module 8K0941597E For AUDI A5 A6 A8
AUDI A1 A3 A4 A5 A6 A8 Q3 Q5 Q7. Replace this instead of the whole headlamp if your old module is faulty. Any installation done by yourself will cause lose of the warranty. That is the price for ONE device ONLY.