Now that I am making some progress through the upgrade list of no less than 36 incandescent bulbs (not including dash or instrumentation) that BMW have tucked away in various parts of the car, I have reached the point where the dash warnings are more than a little annoying.
Rather than use hot, power hungry resistors to trick the monitoring electronics into thinking that 19th century technology is still happily doing its thing, I figured it might be more 'effizient' for me to modify the monitoring circuits themselves. After all, one of the reasons I am upgrading the lights is to reduce battery load.
So, enter the E34 LKM (Licht Kontrolle Modul) or Light Control Module.
Here's my attempt at mangulating it into STFU or GTFO status:
Basically I have used tinned copper wire to short the relevant logic pins to ground, in effect forcing the IC into 'thinking' the current draw of the old lamps is still present. The modification pictured is for tail, brake, rear fog and number plate lights.
I will add more wire as the list of completed upgrades grows.