well managed to get the car through the MOT without fixing the rear led brake light. was quizzing the dealer and he was saying that by the letter of the law during an MOT if it can be shown that ANY light on the car is not connected then the do not have to test it. Sure enough it passed with a message on the certificate the rear led not tested as they couldnt be sure it was connected.
I may get round to fixing it at some point but at least I have another year of breathing space.
cheers everyone who replied.