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Dipped headlight problems.

Posted: Tue Aug 05, 2008 2:21 pm
by iandromiskin
When I was at the UK National rally I knew my drivers headlight didn't work properly. It worked fine in full headlight mode but not dipped. As its the sealed unit type I was told to simply buy a new one, which I did and fitted and it worked great - until this weekend :evil:

It seems that this new unit is repeating the fault of the original one - the dipped beam doesn't work, but the full does. Does anyone have any suggestions as to the fault ? I was told it might be loose wires in the loom :-?

Posted: Tue Aug 05, 2008 3:06 pm
by MoggyTech
Follow the wires from the headlight bowl, through the inner wing, and you will find a bunch of push in sleeved terminal connectors for the lights. These will be dirty/corroded as will the bullet connectors that plug into them. Clean them all up, and coat inside with Vaseline, job done.

Posted: Tue Aug 05, 2008 4:48 pm
by iandromiskin
Brill :D I'll give it a go and see what happens. Hopefully it'll solve the problem.

Posted: Tue Aug 05, 2008 10:20 pm
by bmcecosse
But it could just be that the DIP filament has failed - some of these sealed beam units are quite old - even though 'new' stock. Test it out before going looking for faults.

Posted: Tue Aug 05, 2008 10:29 pm
by Sidney'61
It probably is the wires, I had the same problem when i when i first bought Sidney, just had to trace the wire and redo one of the connections.

Posted: Wed Aug 06, 2008 12:41 pm
by MoggyTech
Best to check the wires before throwing more money at the car IMHO

Posted: Wed Aug 06, 2008 7:28 pm
by minor_hickup
If it a lucas unit it is new old stock. If it is unbranded or wipac then its probably new!