Hi all, anyone know how to do this with VCDS? I have tried the most obvious option, of disabling cold diagnosis for the backup light but this unfortunately didnt work. I have put this bulb in my reverse light tonight - 1x P21W 50W CREE LED 1156 382 BA15s REVERSE BULBS AUDI DRL DAYTIME DRL BMW | eBay and it is a fantastic upgrade, except when I turn the ignition on it pulses 5 times, which I'm not gonna be able to live with. God knows it could happen when i'm driving as well. So my thoughts are to turn off the self test to disable this. Any one able to help? Thanks.