Paul:
According to an old post here, there are actually THREE coolant temp sensors. I believe the one that JimF circled above in the photo is for controlling aux. fans. Please see the following thread:
http://www.peachparts.com/shopforum/showthread.php?threadid=7560&highlight=coolant+temp+sensor
__________________
Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
"Fräulein"
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