C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Fans are not working.Help please!!!

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Old Apr 18, 2009 | 02:38 PM
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bisser's Avatar
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mercedes c280
Fans are not working.Help please!!!

My two aux fans, are not working, but when conect them directly with the seperate cables from the battery both of them work. What is wrong?
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Old Apr 18, 2009 | 02:52 PM
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Likely blown temp sensor unit.
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Old Apr 20, 2009 | 10:49 AM
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W203 C230SS
stupid question possibly- but what makes you think they aren't working? cars with electric fans aren't like old cars that constantly had the fan turning via the water pump pulley/belt.
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Old Apr 29, 2009 | 02:11 AM
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1999 Civic Hatchback, 2002 c240, 2003 CLK 500
two fans? i thought there is only one fan? i notice that when i turn my A/C on the fan does not move.. it only turns on later when the car starts to warm.
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Old Apr 29, 2009 | 05:36 PM
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Originally Posted by bbrain
two fans? i thought there is only one fan? i notice that when i turn my A/C on the fan does not move.. it only turns on later when the car starts to warm.
Some vehicles have 2 & some one depending on spec.

Your fan seems to be working correctly - It will only kick on & into high gear as needed by the engine & the aircon
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Old Apr 30, 2009 | 02:54 AM
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From: Arizona
1999 Civic Hatchback, 2002 c240, 2003 CLK 500
Originally Posted by Glyn M Ruck
Some vehicles have 2 & some one depending on spec.

Your fan seems to be working correctly - It will only kick on & into high gear as needed by the engine & the aircon
i have been having problems with my A/C as i have started a thread about a year ago.. it is annoying at idle it is warm, but when i get on the freeway it becomes ice cold. so every year i debate to get it fixed or not. heh
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Old Apr 30, 2009 | 12:20 PM
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
It does sound as though you are not getting enough air through the condensor when stationary. Maybe the cars fans are not kicking in when the aircon needs them. Could be an aircon temp sensor blown.
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