Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

One of my headlights has dulled, it has happened before so I replaced it which didn't fix it so I fitted new sidelights (I think thats what theyre called) and that fixed it for about 1 or 2 days. it has now gone back to having the headlight dulled but not the sidelight. could it be corrosion or a loose connection and if so would it be on the sidelight or the headlight terminals.

just sounds like dodgy connection,
take your bulbs out make sure no rust on the terminals,
also the hedlamp bulbs are dual element so check make sure one hasnt blown

IIRC there is a small earth wire thats in the headlight itself, also check that aint corroded or broken.