Can i warn you?
I have had the hid aftermarket kit with canbus and the same with 6000k led bulbs for angle eyes that advertise no error codes,
after a month or 2 the inactive suspension light came on and i took the car to my mate who has computer, he read the car and i had egr valve, 5 dea transferbox, glow plug unit and 5 glow plugs, egb electronic brake balance, instrument cluster, as errors,
I didn't think there was anything wrong as the car was running as normal so I put it down to the lights because (I always got my mate to read car coms and never had problems) i always wondered how they got round the error codes, what i have found out is that the aftermarket leds and hids have resistors to trick the computer that the lights are ok, then the car computer starts to think that others things are going wrong because of the voltage is not correct in the car, so i decided to get rid of the hids and buy genuine bmw xenon’s from my mate and i fitted them and had the car comms set for xenons, after reading the car a few more times over a couple of weeks and still getting a egr valve, transferbox, glow plugs and instrument cluster error i decided to change angle leds
i now have no errors, what i would say is be careful with all the things on your car because i think they send the car pc a bit scatty and eventually it will probably be misery in the end