Originally Posted by ad1das
This is the first mod i did. If you dont have the relay harness, your display will actually tell you "headlight fault" and they wont work. I am running 35 watt ballasts, with 6k beams. let me go take some pics right now and post them.
actually, relay harness only allow you to avoid flickering, because mk3 focus receives 9 volt power on DRL..
the ressitor are the things that make you avoid the "dipped beam bulb" - the error
With those resistor in parallele, your computer thinks you have incandescent bulb of 55 watt (original) plugged to it.. relay harness alone isn't enough to imitate the incandescent bulb resistance