loud humming sound

[Sugar79]

from the passenger headlight when the lights are on dipped beam, it doesnt do it when the side lights are on.. I did notice some "black boxes" that are on the back of the headlights, are these relays or something and could they be the source of the humming??

also are they expensive to replace??

Thanks

 

[Sugar79]

anyone?? :dapprove:

 

[TomTom]

Could be headlamp level adjusters jammed on up/down maybe?

You had a look at the wiring/earths anything full of water?

 

[Sugar79]

yeah I had a look everything seems dry and no loose wires or anything dodgy

Can those adjusters (are they the black boxes on the back of the headlamp?) be bought seperatly and are they expensive at all??

cheers

 

[davebem]

Yeah they are the black boxes. They are easy to disconnect, try disconnecting them and see if the noise stops. They look similar to this:

 

[Sugar79]

ok thanks i will have a play about with it tomorrow, cheers for the pic