I have fitted some bosch oem e36 headlights, think they came off an M3.
At the back of the headlamp unit you have your round plug with 4 male connections in which the female plug attatches...
My question is on the male connectors which connection supplies which light.
1 pin will be ground/earth
1 pin will supply park/side lights
1 pin will supply main beam
1 pin will supply dipped beam
As you look at the unit the pins are located in the 12, 3, 6 & 9 o'clock positions.
thanks in advance, i just spent an hour stripping the mess of aftermarket loom, colourcoding the pending connections either side and now i just have to connect and walla have full oem working lights again.