Sidelight went on my E36 so went and bought a bulb for it. Removed the bulb assembly from the light, but it seems that the bulb connections are actually welded to the connector. Does this mean I have to buy a whole new connector rather than just the bulb...?!
No you just replace the bulb with a standard H1 bulb which is what you have in the picture, the connectors just pull off....... or they should do unless comeone has been at play.