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  #1  
Old 10-10-2004, 10:06 PM
Coming back from burnout
 
Join Date: Jun 1999
Location: in the Pacific Northwest
Posts: 2,274
Question 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?
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  #2  
Old 10-10-2004, 10:07 PM
Coming back from burnout
 
Join Date: Jun 1999
Location: in the Pacific Northwest
Posts: 2,274
Presently the Light simply doesnt come on at all...

I forgot to say, presently the Light simply doesnt come on at all...
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  #3  
Old 10-11-2004, 07:22 AM
tomm9298's Avatar
Diesel and WVO ..
 
Join Date: Sep 2004
Location: South Carolina NO RUST
Posts: 502
Thumbs up 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!!!
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1984 300D Turbo Sedan (Hilda) 272,115 miles.....
Anthracite Gray/Palamino Leather, I am 3rd owner

2001 Dodge Stratus (Silver) (wifes) 55814 miles...

1982 280TE Wagon Astral Silver Metallic/
Anthracite Velour
260,512 miles (Eva)

1969 230 Sedan Olive Green/Black MBTex
4 Speed Manual
84,213 miles ????
Haus Frau


2004 Boreem Ninja Pocket Bike
Highly Modified 49cc (Ling Ling)

Einigkeit und Recht und Freiheit
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  #4  
Old 10-11-2004, 10:24 AM
Registered Diesel Burner
 
Join Date: Aug 2001
Location: Northern Virginia
Posts: 2,911
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]

Ken300D
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1982 300D at 351K miles
1984 300SD at 217K miles
1987 300D at 370K miles
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