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#1
03-26-2007, 05:46 PM
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103 question
forum i have about gone blind looking for this answere.
i have a 1991 300e 3liter, there are 3 temp sensors on the head, one closest to firewall has 4 post and is b2,next toward the front is a single post sensor, it controls the temp gauge on the instrument panel, next toward front is a blue 2 post sensor,i cannot locate it on any manuals i have and have serched the forum for its job, can anyone help? thanks larry perkins lou ky 
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#2
03-26-2007, 06:16 PM
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I'm pretty sure it's the 105/115 switch for the aux fan.
Jump it Key on to start the fan.
__________________
-Marty 1986 300E 220,000 miles+ transmission impossible (Now waiting under a bridge in order to become one) Reading your M103 duty cycle: http://www.peachparts.com/shopforum/831799-post13.html http://www.peachparts.com/shopforum/831807-post14.html
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#3
03-26-2007, 06:30 PM
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i think just un pluging it should start the fan if all is working correctly
__________________
1967 250 S 1967 280SE 1968 250S 1971 280 SE 1973 220 1974 280 S 1975 450 SEL 1976 220 D 1979 300SD 1983 300 SD 1985 230 TE euro 1986 280SL 1986 500 SEL euro 1986 190E 2.3 1990 300 SE 2003 C230 K 2004 C230 K 1987 560SEL 1987 300SDL now in canada 2005 C230 1998 C43 AMG Sold to DON 1993 190E 2.6 300TD Former daily driver Totaled current: R320 CDI Ram 2500 Cummins
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#4
03-26-2007, 06:43 PM
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click the link below...then scroll down almost to the bottom.
You will see a large color photograph depicting what I think is the item that you are referring to. If that is not it, then please post a pic. Good luck. JimF's Cool Harness
__________________
Current Benzes 1989 300TE "Alice" 1990 300CE "Sam Spade" 1991 300CE "Beowulf" RIP (06.1991 - 10.10.2007) 1998 E320 "Orson" 2002 C320 Wagon "Molly Fox" Res non semper sunt quae esse videntur My Gallery Not in this weather!
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#5
03-26-2007, 07:04 PM
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Quote:
It turns on upon a bridge if the sensor connector wires. Or maybe they switched from on=on to off=on at some point.
__________________
-Marty 1986 300E 220,000 miles+ transmission impossible (Now waiting under a bridge in order to become one) Reading your M103 duty cycle: http://www.peachparts.com/shopforum/831799-post13.html http://www.peachparts.com/shopforum/831807-post14.html
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#6
03-26-2007, 07:10 PM
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Quote:
It may contain the answer to your question.
__________________
Current Benzes 1989 300TE "Alice" 1990 300CE "Sam Spade" 1991 300CE "Beowulf" RIP (06.1991 - 10.10.2007) 1998 E320 "Orson" 2002 C320 Wagon "Molly Fox" Res non semper sunt quae esse videntur My Gallery Not in this weather!
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