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  #1  
Old 01-16-2005, 05:16 PM
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Puzzling switch behind instrument cluster in 1984 300SD

I had my instrument cluster out today. I noticed that the rear dome light was on. Where the instrument cluster was, I found a switch in the upper left hand corner. I pushed the switch in, and the dome light went out. Does anyone know what this switch is for? If someone did not know about this and left the instrument cluster out for a long time, the battery could go dead.
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  #2  
Old 01-16-2005, 07:29 PM
BusyBenz
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Could that be the secret switch everybody is talking about lately? The one that fixes the transmission? There's a guy on Ebay selling directions on how to find this switch for $5.

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  #3  
Old 01-16-2005, 08:04 PM
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BusyBenz,

I have not driven the car without instrument cluster, so I cannot tell for sure if that is the secret switch that fixes the transmission. But, I must say, it is a secret switch.
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  #4  
Old 01-19-2005, 11:46 PM
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The "secret switch" is part of the anti-theft system. If the door is locked and you remove the instrument cluster. The alarm will sound.
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'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
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  #5  
Old 01-19-2005, 11:57 PM
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Seems like a rather primitive anti-theft system

I prefer ones that sample the theif's DNA as they approch the car via cold laser scanning, then send in their genetic analysis to the Crime Lab right as the theft takes place.......I have one of these on my SD, it was $60,000. + the monthly subscription for the dna workups....but worth it. It also disables the glow plugs, just so the theif can *try* to start the car, but...can't.



(I like to make up things)
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-diesel is not just a fuel, its a way of life-
'89 420SEL 168k - mine (OC-170,000)
'93 190D 2.2 - 223k - mine (OC-222,700)
'01 E320 Wagon - 149k - mine (OC-154,000)
'05 C240 4matic Wagon - 153k - wifes (OC-154,500)
'01 E320 - 162k - Dad's (OC-163,500)
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  #6  
Old 01-20-2005, 12:00 AM
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Sounds reasonable. It looks just the switch found under the hood. But, I wonder what kind of car thief would want to take the instrument cluster out of the car to steal it after getting into the car.
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  #7  
Old 01-20-2005, 12:17 AM
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Maybe to get access to the ignition switch?
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Michael LaFleur

'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
2009 Welsh Corgi (Buba)

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  #8  
Old 01-20-2005, 12:20 AM
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With those disabled glow plugs that wouldn't help them much....
__________________
-diesel is not just a fuel, its a way of life-
'89 420SEL 168k - mine (OC-170,000)
'93 190D 2.2 - 223k - mine (OC-222,700)
'01 E320 Wagon - 149k - mine (OC-154,000)
'05 C240 4matic Wagon - 153k - wifes (OC-154,500)
'01 E320 - 162k - Dad's (OC-163,500)
'07 E350 Wagon - 116k - dad's (OC-121,500)
'02 E320 - 193k - Brother's (OC - 192,000)
'09 E350 4matic Sedan - 84k - Brothers (OC-85,500)
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