Hi all, I've got a problem with my bog standard tdi, usually when I turn the engine off with the headlights on, the beams get less powerful, however this seems to now be the output with the engine running, and if I turn the engine off there is nothing but the sidelights on, has anyone had this before? It used to be great on dipped beam, but now it's like following 2 midgets with candles. Mot due in march and it will definitely fail on low output. I changed the clutch recently and wonder if I've knocked a wire loose and it's completely dropped off now.

Thanks 

Mike 

How old is the battery??