PeachParts Mercedes-Benz Forum

PeachParts Mercedes-Benz Forum (
-   Diesel Discussion (
-   -   How do I repair the Courtesy Lamp on my 85 300D? (

Carrameow 10-10-2004 10:06 PM

How do I repair the Courtesy Lamp on my 85 300D?
Is it possible to repair the Courtesy Light on an 85 300D? I see a little module with transistors and diodes. Can the Light be fixed? :D

Carrameow 10-10-2004 10:07 PM

Presently the Light simply doesnt come on at all...
I forgot to say, presently the Light simply doesnt come on at all...

tomm9298 10-11-2004 07:22 AM

Same Problem
I had the same problem. I checked and had 12 volts at the lamp and it still would not come on. I mean on the lamp!! My fix was pull all connectors off, clean contacts, put connectors back on, insert fixture, all works well!!! :D

Ken300D 10-11-2004 10:24 AM

They have a rather weak design for the way that rotating control knob controls the electrical contacts. I disassembled mine completely and tried to clean up the contacts (copper) and bend them a little to make better contact. It was a little better but still flakey.

So, I soldered a jumper across the contacts that cause the time-delayed light turn-off. Now that works solidly. Of course the OFF position doesn't work any more. I can get the light to turn ON in the manual always-on position with a slight bit of switch finesse.

So for me I have my solution with the soldered jumper. I don't need the fully OFF position very often, since I'm not trying to sneak in and out of my car. :) But if I do then I'll pull the power lead off the light.

[refers to the 1984 300SD]


All times are GMT -4. The time now is 01:30 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website