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  #1  
Old 06-16-2002, 05:10 AM
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Question 300E - Dome Lamp Control Switch - Lighted?

I have a 1992 300E and was wondering:

Is the 4-position dome lamp control switch supposed to be gently lighted when the headlights are on (like the sliding roof switch, or window switches, etc..)?

And if so, has anyone tried to replace the bulb inside the switch?

Thanks in advance!
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1995 E320
1999 E320 Wagon

Last edited by Benzwood; 06-17-2002 at 11:01 PM.
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  #2  
Old 06-16-2002, 06:18 AM
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they are fiber optically lighted.

I think you take out the AC pushbuttons and you put a light in behind ther that goes up to the switches.

Austin
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No Benzes in the stable at the moment, but itching for one again.

Former Mercedes in the Stable:
1983 300CD Turbo diesel 515k mi sold
1984 300CD Turbo Diesel 150 k mi sold
1982 300D Turbo Diesel 225 sold
1987 300D Turbo Diesel 255k mi sold
1988 300 CE AMG Hammer 15k mi sold
1986 300E Amg Hammer 88k mi sold
1992 500E 156k mi sold
etc.
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  #3  
Old 06-16-2002, 02:18 PM
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Thanks for the reply, but I'm talking about the 4-position sliding switch for the dome/reading light, it's located right next to the dome light on my car.

The switch for the sliding sunroof is also up there, and it's illuminated, but not the dome/reading light switch.

I've got the dome light unit out, and all there is is a 5-prong plug that attaches to the rear of the sealed switch. I don't want to tear into the switch if there's no bulb in there -- looks like a lot of little pieces.

Anybody else know?
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  #4  
Old 06-17-2002, 11:03 PM
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Edited title and bumped to the top for one more try... somebody besides me must have a 300E.

Please look, up in the sky, is it a plane? A bird? An illuminated dome switch??
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  #5  
Old 06-17-2002, 11:46 PM
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Hi Benzwood:

I have an87 300E. The dome light switch is not illuminated on mine. The owner's manual gives instructions on how to replace bulbs ('push the lamp assembly to the right, lift off the cover on the left side with a screwdriver and pull the assembly out').

However, the only bulbs they refer to are the 10 watt dome light, the 5 watt reading light bulb, and the 1.2 watt seat belt reminder bulb. No bulb for the switch. Funny, they put an LED in the radio fader knob, but nothing in this switch.

Hope this helps - I don't know if your 92 is the same.
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  #6  
Old 06-18-2002, 02:41 AM
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Mine lights up just like all the other switches. There either has to be a fiber optic for it or a bulb in there. I'll pull mine when I gett he car back from the windshield replacement and check, since I have a 1992 300ce it should be the same.

alon
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  #7  
Old 06-18-2002, 03:06 AM
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Thanks guys! (And nice cars!)

I looked up the part number for both of your cars, and it seems to be the same as mine, i.e. 124 820 05 01. So it seems like all 3 of ours should be the same, I guess 2 of ours are burnt out? Can't imagine that it would be different only for the coupe.

That part number is unfortunately for the whole dome light housing base, which includes the 4-position switch.

When I pulled mine, there was no lamp external to the switch, so it must be inside somewhere. It does look like the back will come off the switch, but there will then be various loose/sliding contacts.

I'm going on a road trip in a few days and will probably wait until afterward to keep obsessing about it. Maybe JCE will have the guts to try replacing his in the meantime?

Fastlane shows the part at $73.87, which makes for an expensive bulb replacement if the switch kibbles 'n' bits don't go back together.
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Last edited by Benzwood; 06-18-2002 at 03:35 AM.
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  #8  
Old 07-11-2002, 06:42 PM
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In case there's some confusion, please see attached photo -- with the headlights on, my sunroof switch (on left) is illuminated but the 4-position switch (on right) is not.

Ashman (or anyone) can you verify that 4-position switch is what is illuminated in your car?

The reason I'm double-checking is because I finally had a chance to pull mine out. I completely dissasembled the 4-position switch, and there is NO lamp anywhere for illumination. Luckily, I didn't break off any of those little plastic tabs off like I usually do.
Attached Thumbnails
Dome Lamp Control Switch - Lighted?-domelight2.jpg  
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  #9  
Old 07-11-2002, 06:56 PM
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No, dome lamp switches are not illuminated on 124's.

Scott P.
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  #10  
Old 07-11-2002, 06:57 PM
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I'll check I don't think my 4 position switch illumiates but I will double check.

Alon
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  #11  
Old 07-11-2002, 07:03 PM
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Is it possible to also get 'toilet in use' and 'No smoking' lights to go next to the seatbelt lights?

later
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  #12  
Old 07-11-2002, 07:14 PM
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Hehe -- actually there is a simple plastic insert over the seatbelt lights, hire a graphic artist and voila -- full airplane simulation!That would be pretty funny, actually. I'd pay $20 for one.

It's odd that MB went to so much trouble with other lights but didn't illuminate the one switch that needs it the most!

Do other models have the 4-position switch illuminated? Any chance of interchanging parts?

There is also just a little bit of room inside my switch, if you got really ambitious you could probably wire something up connected to whatever supplies the sunroof switch illumination. Don't know how you'd ensure nice faint/even illumination though.
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  #13  
Old 09-05-2002, 09:45 PM
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Dome Lamp Control Switch Lighted?

dddddd

Funny, this switch on my 87 300D is lighted and on the 92 2.5 300D, it is not. I was stressing about this also. I wonder if it's worth taking apart and losing things for?
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  #14  
Old 09-05-2002, 10:10 PM
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Dome Light Switch Lighted?

I had to go and check. The newer car (the 92) has the light and the older one does not.
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  #15  
Old 09-05-2002, 10:59 PM
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What? The 4-position switch indicated by the ? in the photo below is lighted in your 1992 300D?

In my 1992 300E it is not lighted. If your same year 300D is, that's really bizarre.
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Dome Lamp Control Switch - Lighted?-domelight2.jpg  
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