I'm looking for a 12V source in a pre-86 W126 (380SE to be specific) off of
which I can splice a power cord. The trick is this though, it need to be hot
on run only or hot on start and run only. In the post-86's there's a wire
that will work up in the dome light area. According to the wiring diagram,
the only wires for the domelight are always hot in the pre-86s though. I'm
thinking the interior temp sensor, which is up by the domelight is hot on
run and start only. Can anybody verify?
Run it to where? Also, I'm not all that sure how to get underneath the front
part of the headliner and then the A-pillar. Doesn't sound too easy. If I
could use the power wire for the interior temp sensor I would have no wires
running around, it would look clean, and it'd be easy, but does anybody know
if it can be done?
haute in die Tasten:
Run it off the accessory circuit, easily found behind the radio.
the front trim comes down by removing the sunvisors, and clips and the rear
view mirror and anything else attached to it. the A pillar if I remember
correctly has a tab with a screw in it at the top back under the side trim.
you will need to remove the handle to get the side cover out enough to undo
haute in die Tasten:
The seats, horns, roof, rear defroast and rear lighters are hot in run or
start. The glovebox, lights, front lighter are hot in accesory or run.
Look in your fuse box to see which fuse does your (varies by model year)
and run yor wire from there.
I wouldn't splice a wire inside the cabin, ever. Half the electrical
bugs I fixed on my car were because of this. Stuff that Mercedes wired
does last 300K miles. Other wiring mods made, shall we say, after
it left the factory did not fare so well and after much fuse blowing
and replacing wires are ok now, but run your own wire, please.
Need Mercedes parts ? - http://parts.mbz.org
http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org
I had decided to go with the dome light and just live with using the
detector's on/off switch since I didn't feel like running a wire from the
glovebox light, but what you say worries me. Do you really think the
addtional 225 to 425 mA will blow the fuse?
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