Hello,

I have a Mercedes c220 cdi 2011 facelift.
I’ve installed the original bi-xenon headlights for the same model with all the wirings (ballast, xenon levelers…). I have a big problem, the Mercedes official dealer installed the program for bi-xenon light on the main car’s computer and they managed to get the low beam bi-xenon to work but not the high beam lights. What should I do? I’ve heard some rumors that I should connect one or more pins directly from the main car’s computer to the headlights. Can somebody please help me?