Hi, I have got Audi A6 2006 2l diesel. My headlamps are from Audi A6 2009 model, bi xenon led day running lights. Just bought the car few days ago and knowing that, the headlight bulb ( bi-xenon ) didn't work. I taught that it will be simple fix, just changing the bulb. There was condensation inside the headlamp. I did removed the headlamp and clean it up and also applied new seal all over. Then bought new bi-xenon bulb, reconnected and the light still not working. The indicator works, led day running light works, just that headlight not. Checked all fuses and they are fine. Please can someone can advise me what to do. Thank you.