Well, im gettin totally pissed off with this! lol

Got the car booked in for MOT on friday, so as car has been sat a while took battery off to charge, reconnected it today.

Basically, I can get all rear lights working except brakes, I did have the brakes working at one point, but not the fogs (I think it was the fogs :S), ive took both of the connectors off, sprayed em with WD40 and scrubed them to get rid of surface rust, also done the same with the bulbs.

Tried swapping bulbs over from one cluster to other etc... and all bulbs work, also tried swapping clusters over.

The rear drivers side light is a bit intermittent and only seems to stay on when I have the cluster in certain positions, luckily it appears to stay on when it is in place. I have also noticed that the front drivers side (same side as rear) light appears to be quite sensitive - it will come on and off sometimes, I have tried reconnecting the adaptor several times but it just seems a bit hit & miss.

Someone said it might be a bad earth, but im not sure how I test / solve this.

Does anybody have any suggestions as I need to get it sorted for the MOT.

Thanks!!