diode in fuse board!!

[jimbob350ifhc]

the diode in my fuse board of my 85 350i has fallen to bits and i think is the reason for my battery to go flat:-( can any help me by telling me what it does?? and what sort of diode it is??

Any help is really appriciated

james

[jmorgan]

Its to do with the lights.

Have a look on here
www.tvrwedgepages.co.uk/

Under maintenance tab at the top and look for the headlight explained bit.

Battery going flat can be another matter. How quickly does it go flat and do you have a multimeter?

PS, not sure what it is but wedg1e (I think) answered a simular question a short while ago. Try a search on the forum.

>> Edited by jmorgan on Saturday 20th August 19:28

[wedg1e]

Any diode called a silicon rectifier, rated at more than about 1.5A will do. Typically a '1N4000' series diode, but eg 1N5401 will do as well. Usually there are two or even three...

[jimbob350ifhc]

cheers lads!! probably the altanator if its not this diode or i've left a light on but noticed this diode had fallen to peices any idea what the diode in the fuse board is for?? out of interest...

[wedg1e]

Usually they are part of the control circuit that pops the headlamps up: see if yours still work

[jimbob350ifhc]

the diode is not in and the head lights do pop up but come to think of it the engine would cut for a secound just thought it would be the low battary because i had only just bump started it!!

the plot thickens!!

[streaky]

wedg1e said:

Any diode called a silicon rectifier, rated at more than about 1.5A will do. Typically a '1N4000' series diode, but eg 1N5401 will do as well. Usually there are two or even three...

And (if like mine) they can be anywhere! - Streaky