Are you talking about the single high level brake light or have you fitted the OEM LED clusters on both sides?
If its the high level brake light, see this guide for replacing it, its a common fault to have this unit fail and the official dealer fix is expensive.
http://www.golfgtiforum.co.uk/index.php?topic=121067.0
hi ub7rm it is on my friends gti
the high level brake light , sorry i should have been more specific...
I will check this thread out & see wot i can manage to do thanks for the info.
I will keep this updated, because if it is a common fault it will let others be more aware....
its the fact that it still lights up but is very faint, thats the part that gets me!!!!!!!!!!!!!
thanks
scopes