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#1
01-27-2006, 10:31 PM
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2 Temp senders on a 240D?
Just curious why there are 2 temp senders on my freinds 80 240d?
The one on the right controls the dash gauge.. is the other the electrical fan? My 81 has only 1 sender ........just wondering? 
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#2
01-28-2006, 06:42 AM
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The early cars use one sensor for the guage and the other for the glow plug system. The late cars use a sensor for the temp gauge and actually measure the resistance of number one glow plug, using this measurement in place of a temp sensor.
Have a great day,
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#3
01-28-2006, 08:08 AM
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Yes those are correct. Many times people will assume that one if for the aux fan, but that is not the case.
__________________
1981 300D 147k 1998 VW Jetta Tdi 320k 2001 Dodge Ram 2500 141k 1979 300D 234k (sold) 1984 300D "Astor" 262k(sold) Mercedes How-To and Repair Pictorials I love the smell of diesel smoke in my hair 
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