After changing the brake sensor cable I noticed afterwards that the Driver side headlamp was not working. I've just bought another bulb,70 quid!!! Hey presto it doesn't work. Could it be linked or does it have a separate fuse? Any help would be appreciated, Thanks.

I had that problem, I did a number of elimination tests. I swapped the starter blocks off Bulb connector N/S lamp to O/S. It turned out to be the big electronic block attached to bottom of headlamp,Changed that for about £110 It was fine itisme

As above. You have a working headlight on the other side of the car, so it is a case of swapping bits over one by one, until it does start working again

Thanks for the replies, I'll go and give it a go.

Ouchy!! I changed the starter blocks over and whilst doing this I managed to trap the live wire. This caused a short and knackered the Ballast. Big bill on Christmas Eve I'll be more careful next time.