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  #1  
Old 02-10-2010, 01:28 PM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: Eastern TN
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Which 124s have outside temp display in *C?

Did any US spec W124 come with outside temp displayed in *C? If so, what years?

Thanks,
Sixto

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  #2  
Old 02-10-2010, 01:32 PM
TheDon's Avatar
Ghost of Diesels Past
 
Join Date: Oct 2005
Posts: 13,285
well,

my w124 E320 Cabrio has it in C but its a Canadian model

F= 9/5(C)+32

I do that a lot
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  #3  
Old 02-11-2010, 11:49 AM
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Join Date: Dec 2003
Location: Palm Springs, CA
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My E420 (Canadian) Is in Centigrade. I ordered a new sensor (US) assuming that the output would be the same but now I am 10C off. Don't know if the Canadian outside sensor is a different part number.
Anziani
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  #4  
Old 02-11-2010, 11:51 AM
TheDon's Avatar
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bah, why bother with F...

Centigrade is the proper way to go. Last time I checked Fahrenheit was not an acceptable SI unit
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  #5  
Old 02-11-2010, 12:02 PM
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Location: SoCal
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The sensor is just a thermocouple -- no intelligence. The car's electronics interprets the millivolt signal and converts it for output. You might check with a dealer to see if they can change the display from C to F.

I believe I read somewhere that all MB's on the west coast come into Long Beach (even ones destined for Canada) so maybe it can be changed depending on destination. Same issue with running lights on models a few years ago.
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  #6  
Old 02-11-2010, 12:08 PM
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Location: Palm Springs, CA
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I have no problem with the display in Centigrade. I'm just puzzled as to the discrepancy. You are right, the thermistor is only changing resistance. Perhaps my display is bad. On the other hand, most of the time it is not really readable except when it is back lighted.
Anziani
'93 300CE 181K
'95 E420 118K
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  #7  
Old 02-11-2010, 02:46 PM
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The sender is the same for degrees C and degrees F.
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  #8  
Old 02-11-2010, 06:15 PM
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I was afraid of that. Must be my display which will forever be 10C off. I add 10C to the reading and then convert mentally to F. Keeps what's left of my mind sharp!
Anziani

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