i have this problem on my s12 , check my ebay sale for the g reg s12 . an auto electrician traced this problem back to the headlight arm / stalk or whatever you want to call it , bad connections . the reason the relay clicks is because ther isn't enough power going through it to click it into place . i aint no sparkie mind you but thats what i was told so i assume it to be right . my lights work on sidelight and main beam , but very very dull on dip and the relay clicks , sometimes though this changes to one light working on dip and the other going out completely
