At last I have found the problem with my headlamps (96P XJ pre facelift 2.5TD Limited)

Its a burntout connector block on the headlamp pull switch, caused by water leak from windscreen seal

Just wondered if anyone has any tips on changing this connector block. I suppose its a dash out job to get easy access?

Anyone have a spare block and pull switch they would like to swap in exchange for some beer tokens?

Cheers all. Im off now to enjoy the rest of the weekend ....
Keep smiling .... It will soon be christmas
