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W140 Dimming mirror - which wire go where?

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Old Jul 11, 2004 | 02:27 PM
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Surf Blau's Avatar
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1984 Mercedes-Benz 190D
W140 Dimming mirror - which wire go where?

I'm currently installing a W140 dimming RVM in my W201 - the physical fitting of it is taken care of (was quite easy), but the wiring has left me uncertain..

There are four wires:

Blue/grey
Pink/Purple
Brown
Pink/Green

Where do they go?? The only one I'm quite certain about is the brown one, which I assume goes to ground..

Does anyone know which ones I need?
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Old Jul 11, 2004 | 02:49 PM
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Originally Posted by Surf Blau
I'm currently installing a W140 dimming RVM in my W201 - the physical fitting of it is taken care of (was quite easy), but the wiring has left me uncertain..

There are four wires:

Blue/grey
Pink/Purple
Brown
Pink/Green

Where do they go?? The only one I'm quite certain about is the brown one, which I assume goes to ground..

Does anyone know which ones I need?
Hi Sven!

Pink = autodimming
Blue/grey + brown = heating

For either one, it doesn't really matter which way they go on, because the heating element works either polarity, and the dimming is similar (but not quite).

On the 202/210, the heating wires are bare pins and the dimming wires are a purplish or black plastic-housed connector.

-s-
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Old Jul 11, 2004 | 03:13 PM
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Hi Dean!

Thanks for the info, but I presume this is for the side-mirrors? I'm working on the interior mirror (this isn't too clear in my original post I see) Any idea which wire goes where then?
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Old Jul 11, 2004 | 03:25 PM
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Never mind, Steve helped me out!

(blue/grey=power, brown=ground)
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Old Jul 11, 2004 | 05:07 PM
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Well, everything is in, and it worked great! Nevertheless I had to disconnect it again - both the wires I had in my stone-age car was constant power (well, one was door-activated), so it seems I have to run a wire down to the connection point in the driverside footwell..

Cool feature though, definitive a "must-have"
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Old Jul 11, 2004 | 07:13 PM
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Originally Posted by Surf Blau
Thanks for the info, but I presume this is for the side-mirrors? I'm working on the interior mirror (this isn't too clear in my original post I see) Any idea which wire goes where then?
Sorry, I didn't connect RVM = rear view mirror... innenraum would have made more sense to me at first. Glad you realized that when I wrote "heating" I thought you meant exterior mirrors... but the pink coming OUT are for dimming.

Post some pics, this sounds cool...

-s-
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Old Jul 12, 2004 | 05:41 PM
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some slow@$$diesels
Originally Posted by Surf Blau
Never mind, Steve helped me out!
SMS rulez...sorry for the late reply...didn't bring my cell during outdoor dinner...

next mod...heated innenraum RVMs ...

greetingz,
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Old Jul 12, 2004 | 05:59 PM
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I kinda figured you were out to dinner (it was a Sunday afterall), no stress at all, I ended up having to disconnect it again afterwards anyway :p

Nah, no need for heated innenraum RVM (heated steering wheel would be cool though) - but how about electric folding/heating/dimming SLK side-mirrors?

EDIT: Oh, and I will snap some pics once I finish it
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Old Jul 12, 2004 | 07:44 PM
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Actually, when I lived closer to San Francisco, and parked outside, there were some days when a heated innenraum mirror would have been useful... whether Steve believes it or not!

-s-
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Old Jul 13, 2004 | 05:21 PM
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Why?? High air humidity?
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