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  #1  
Old 01-07-2020, 03:26 PM
HGV HGV is offline
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W124 1995 E320 Wagon Mysterious Switch

I was installing a headlight switch last night and all went very well.

But.....as I was looking under the dash i noticed a knob that i have never seen before. It is only accessible when the the lower bolster is loosened as i did to remove the headlight switch. The previous owner of the car did some weird things so i am not sure if this is an original feature. (he removed the kick down switch,????Why would anyone do that?)

Any help in figuring this out would be appreciated. I didn't touch it, but i might to see if it does anything

Thanks

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W124 1995 E320 Wagon Mysterious Switch-w124-switch-dash.jpg  
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  #2  
Old 01-07-2020, 04:12 PM
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That appears to be a cruise control amplifier. The knob is a lock/unlock.

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  #3  
Old 01-07-2020, 09:59 PM
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Diagnostic module. The knob is to engage / release it from the connector.
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  #4  
Old 01-08-2020, 03:10 AM
HGV HGV is offline
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I am interested on the purpose for an inaccessible switch. When is it used? Why isn't it readily accessible?
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  #5  
Old 01-08-2020, 09:19 AM
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It isn't a switch. It's a latch. Turning it one way releases the module and pushes it out of its socket, turning it the other way pulls it into the socket and latches it in place.
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Old 01-08-2020, 12:00 PM
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FWIW, the DM's only function is to monitor smog-related stuff and turn on the CEL if there's a problem.....
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  #7  
Old 01-22-2020, 12:41 PM
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Quote:
Originally Posted by HGV View Post
I was installing a headlight switch last night and all went very well.

But.....as I was looking under the dash i noticed a knob that i have never seen before. It is only accessible when the the lower bolster is loosened as i did to remove the headlight switch. The previous owner of the car did some weird things so i am not sure if this is an original feature. (he removed the kick down switch,????Why would anyone do that?)

Any help in figuring this out would be appreciated. I didn't touch it, but i might to see if it does anything

Thanks

Too funny, a couple nights ago I also replaced the headlight switch in my new-to-me '94 E320 TE, and saw and wondered about the same switch.

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