Lights snag, any ideas folks??

[silverback mike]

Hi folks,
Weird occurence.....
Car is an E39 528i touring.

The offside full beam light is staying on whether the lights are on or off. Other lights are not affected, and it can't be controlled by the lightswitch....it just decided it was going to illuminate itself, and that's it.

So, as a temporary measure I have removed the bulb.

There are no loose earths, the other connections are fine, is it a module thingy somwehere? Now I know my alfa and TVR are supposed to do this, that I could accept and indeed expect (athough they haven't done anything wrong )

Stumped silverback, can anyone cast a light on what's going on.

Thanks folks, for now....

[mustard]

If they are like the E34 models, it'll be the Light Control Unit (LKM)

[jeremyc]

Stuck relay?

Try identifying & removing the correct relay (with the bulb replaced ) to see if it goes out.

[silverback mike]

mustard said:

If they are like the E34 models, it'll be the Light Control Unit (LKM)

hmmm, sounds about right, is there one for each side Phil? Where is it??

[silverback mike]

jeremyc said:

Stuck relay? Try identifying & removing the correct relay (with the bulb replaced ) to see if it goes out.

Don't know where the sodding thing is, handbook is no help either...

[r5gttgaz]

www.realoem.com/bmw/showparts.do?model=DH52&mospid=47558&btnr=61_0120&hg=61&fg=25

[mustard]

r5gttgaz said:

www.realoem.com/bmw/showparts.do?model=DH52&mospid=47558&btnr=61_0120&hg=61&fg=25

You beat me to it! lol

www.realoem.com/bmw/showparts.do?model=DH62&mospid=47558&btnr=61_0120&hg=61&fg=25

[silverback mike]

r5gttgaz said:

www.realoem.com/bmw/showparts.do?model=DH52&mospid=47558&btnr=61_0120&hg=61&fg=25

My god, I couldnt get a better answer than that, thanks.

[r5gttgaz]

Use www.realoem.com and put the last 7 digits of your VIN plate in to get the best use out the ETK program.

[silverback mike]

ummmm.......

[silverback mike]

r5gttgaz said:

Use www.realoem.com and put the last 7 digits of your VIN plate in to get the best use out the ETK program.

Thanks...

[silverback mike]

Is it the "light and check control module" I'm after? number 2, and where is it?

spanners and thing's I'm ok with, electrical stuff confuses the heebeegeebies out of me. Sorry chaps, bit dense tonight...

>> Edited by silverback mike on Thursday 6th April 21:58

[mustard]

www.totalbmwmag.com/HandsOn/TechJan04.pdf

[r5gttgaz]

Oh and if your cars over 4 years old ask for 4plus discount when you order the parts (if you need any) and you get 10% off.

[silverback mike]

Thank you chaps, top response, much appreciated indeed.

[anonymous-user]

Jeez. I have an identical car, happily free from this problem. I'm reasonably good at electrics but wouldn't have guessed that one in a million years. The miracle that is PH!

The only electrical problem I have had is the various tail lamp bulbs seem to oxidise their contacts and stop working unless you give the lamp a belt or the bulb a wiggle. Brake lamp bulbs blow fairly regularly too (but not as often as on a Renault Espace....) Main dealer brake lamp bulbs last much longer than Halfrauds.