@kremmen, yes that is the regulation I previously looked at for the headlight upgrade when I did it for my BMW X3, conversion from Halogen to Xenon. I found a way to bypass the CAN bus issues and it worked, xenon headlights were an option the previous owner had not selected and I was able to buy genuine brand new OEM xenon headlights for £300 each, bargin. I was interested to find out if the imported jazz version had the self leveling motors in the headlight and then I could sort the headlight cleaning by teeing into the existing windscreen system and adding a spray nozzle for each headlight. I have upgraded the halogen bulb to Osrams and the beam colour is much better but I live in the countryside and spend a lot of time on unlit rural roads and the glow worm headlights are not good. A car with LED's behind me generates a shadow of my own car in front of me on the road which isn't good.