W126 280se Main beem not working

[tmundy]

Got a very strange problem with my near side main beam. Basically it does not work but the bulb is OK.

What I have done so far to find the problem.

Swaped near side anf off side bulbs which showed that the bulb was OK.
Test voltage with buld out, voltage OK.
Test voltage with bulb in, no voltage found.

So basically with the bulb in no voltage is present when you switch main beem on. Any ideas?

Many thanks in advance for any help.

Tony Mundy

 

[paulcallender]

Good voltage with no load, then bad voltage with load, suggests some type of high resistance in the circuit. I'd check & reconnect all the connectors and clean up/replace the fuse.