Hi all I recieved this car about a month ago, so far thanks to this
thread and one other I have just about fixed all the normal problems
with the car almost just cosmetics now. I have a running light on the
passenger side back that is only getting 1.87 or so volts not even
turning the bulb on. Before I go cutting the plastic tubing around all
the wiring is there any normal suspect areas that this stuff happens
in. I am suspecting a short since its getting some power and the
former owner had to know because the clip to the back of the bulb was
missing. I know the wiring is iffy in the 124's from all the talk but
do you think I can catch it before it does real damage?
Also anyone know a decent scrap yard that has MB near Great Lakes IL?
Thanks all in advance.
Oh no all I did was look at the lamps with the cover out now my
passenger taillights wont come on! Check the fuse its good,replaced it
anyway! Changed bulbs no light. Is there a relay or something? Both
lights no power. HELP!
Ok found the relay and replaced it now all light work but the the light
that says a light is burnt out is lit up. The lights are burnt out in
the climate control unit could that be it? It wasnt on before but the
relay was going out so maybe it couldnt tell. Is there a seperate
relay for the burnt out light sensor or is it in the
headlight/taillight relay? thanks all.
Now, you need to make sure all the lights are working... also some cheap
bulb has the wrong resistance... which would cause that light. Pop out each
taillight bulb holder and make sure all bulbs are lit.
Ok so cheap bulbs will do it, how about the bulbs that are not lit in
my climate control unit? I did check all the lights and they are on
and work well, but what kind of resistence am I looking for? How much
is the system checking for? The relay I got is not new (after paying
600 dollars for the engine wiring harness 200 for that was not in my
range yet) so is the sensor for the light bulbs exterior of that relay
or is it part of it? Thanks again all.
I will do that, bulbs are not the issue tho, I am thinking its still
the headlight control relay (its used but not destroyed inside like the
former, metal tabs inside burnt up) My only question is does that relay
control the bulb light in the dash, I am sure if it does than its the
culprit if not whereever it is thats the culprit. Thanks all.
Ok here it is, I have looked at the schematics and I will tell you that
It is like nothing I have seen before. It shows relay locations (which
it doesnt seem to show all) and has lines that dissapear to a number
that I can not match up to any of the other diagrams or relay pages.
That is why I am asking around. Not very clear. I was just hoping
someone has had a headlight control relay issue, that they had to have
replaced and can inform me. Thanks all.
Ah yeah, welcome to Mercedes electrical systems. Difficult to believe as it
may be the schematic is not wrong. Just unbeleivably difficult to follow.
In the bad old days the entire schematic for the 108 chassis car fit
on one (albeit fold out) page. The scamatic for my 300 SD is a manual
thick than the chassis manual.
Make sure you have the right year and model, and keep looking it's in there
Need Mercedes parts? http://parts.mbz.org
Richard Sexton | Mercedes stuff: http://mbz.org
Well it looks like its the headlight relay, There is no bulb monitor
in the schematic at all. The number on my relay is 1265420132. If
anyone has one of any kind around would love to get it. Thanks for all
the help. 125-200 is pricey for this thing new. Hopefully I dont have
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