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Old 03-12-2008, 02:06 AM
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1989 190e 2.6 aux fans

Any one had a problem with fans that come on even when the car is cold? I have disconnected the relays, fan switches on the head (blue 2 prong) and the switch on the dryer, they keep running. Any and all help is wellcome
Thanks

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Old 03-12-2008, 03:05 AM
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it is possible someone may have bridged the switch on the receiver dryer
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1976 220 D
1979 300SD
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Old 03-12-2008, 11:28 AM
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Quote:
Originally Posted by Carson357 View Post
it is possible someone may have bridged the switch on the receiver dryer
If he disconnected the relays, jumping the drier sw would not give him a fan.

..But , he may not have the correct relays or someone may have jumpered to the Resistor..

Is the Poster aware of the relay locations and that there are two seperate relays???
If the relay for high fan is in place and you disconnected the blu sensor, you will get a fan by Default at ANY temp. [ but that relay has to be in it's socket]
Same condition if that sensor is OPEN.

If you do see someone has done a fan jumper, look under the dash for a possible switch..that is a common mod guys do on these.
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Last edited by Arthur Dalton; 03-12-2008 at 12:22 PM.
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Old 03-14-2008, 12:55 AM
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Quote:
Originally Posted by Arthur Dalton View Post
If he disconnected the relays, jumping the drier sw would not give him a fan.

..But , he may not have the correct relays or someone may have jumpered to the Resistor..

Is the Poster aware of the relay locations and that there are two seperate relays???
If the relay for high fan is in place and you disconnected the blu sensor, you will get a fan by Default at ANY temp. [ but that relay has to be in it's socket]
Same condition if that sensor is OPEN.

If you do see someone has done a fan jumper, look under the dash for a possible switch..that is a common mod guys do on these.
i was also going by the assumption he may not be pulling the correct or all of the relays for the fan control
__________________
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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  #5  
Old 03-14-2008, 06:36 AM
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Yeah, I think we are both thinking the same ...
Kinda hard to get a fan with the relays pulled....but, could be some new /modification wiring .

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