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Discussion Starter · #1 ·
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Does anybody know what the square button to the right of the headlight dial is? It looks clean enough to be stock, but I can't tell. Its a momentary switch button only, and doesn't seem to do anything.
 

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Discussion Starter · #3 ·
Not a button from the factory for sure. Maybe trace the wire back to its origin.

Jayare

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Thanks Jayare, I will get to that, oddly the previous owner (1 owner car, son of the original owner) did not know what it was either, and said it came that way, and doesn't remember using it for anything.
 

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W124 Moderator
86 190E 2.3L 16V, 2 95 320TE's, 02 S500
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13,172 Posts
Keep us posted. Should be interesting.

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W163 and General M Gremlin
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8,242 Posts
Related?
Lower light range controller switch. Saw one of these switches on an SEC awhile back.

Gadget Camera Wood Cable Electric blue
 

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'95 E300 DIESEL, '91 600SEL, '92 600SEL
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18,260 Posts
Related?
Lower light range controller switch. Saw one of these switches on an SEC awhile back.

View attachment 2705141
^THAT is the factory headlight level switch found on Euro spec cars. Useful when towing but otherwise does little to nothing other than being another feature that dies with age.
 

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W124 Moderator
86 190E 2.3L 16V, 2 95 320TE's, 02 S500
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13,172 Posts
I have the entire set-up to convert a NA system to European. Switch plate, dial etc etc.

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W124, 230E 5 speeds Manual, 1987
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336 Posts
Maybe the car was fitted one day with some aftermarket bumper lights or DRL that were operated by this switch. For sure it is an aftermarket Switch and it should be easy enough to trace the Wiring.
 

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1989 W124 260E
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3,436 Posts
A modification put in by previous owner maybe a switch for the fog light ...switch it on see what it dose .
 

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06'E350 wgn,05'E320 CDI,04'E320 wgn,85'300CD,67'230SL
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585 Posts
Could this be for headlight washers?? The fact that it's a 'momentary' button or switch seems significant. Although not a W124, my W211 Wagon has a headlight washer button in the exact same position to the right of the light switch. Press the button and headlights get a squirt of washer fluid.

Some W124's were fitted with headlight washers and/or wipers. Some were not.
 

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'95 E300 DIESEL, '91 600SEL, '92 600SEL
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For W124s with the factory headlight wash 'n wipe, the system is only triggered when the headlights are on AND the screenwash is activated on the multifunction stalk.
 

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06'E350 wgn,05'E320 CDI,04'E320 wgn,85'300CD,67'230SL
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585 Posts
For W124s with the factory headlight wash 'n wipe, the system is only triggered when the headlights are on AND the screenwash is activated on the multifunction stalk.
Unless it was a retro-fit to a car not previously optioned with headlight squirters?? Most logical place for a squirt button to the right of headlamp switch. Orrr....an air blaster horn!
 

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1999 W220 S500 swb
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46 Posts
At least my 1999 w220 has a similar button for the headlamp washer in that spot. Could just be a ”runner up”...
Unless someone knows of an original button on that model. 😊
 
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