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Cooling fan are always on

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Old 12-13-2009, 09:13 AM
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Default Cooling fan are always on

I have audi allroad 2.7t and my cooling fan are always on full speed even if the car is cold.
what could be wrong?
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Old 12-13-2009, 10:06 AM
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It may be nothing...the aux fan is pretty loud when working properly. What kind of climate are you running in?
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Old 12-13-2009, 12:47 PM
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About -5 to 5 deg, this started recently, it save me some time if someone know what is wrong.
I think I will start with changing the temp sensor.
Both electrical fans are on full speed and it start immidietly when I switch the car on.
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Old 12-13-2009, 06:32 PM
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Do some searching here first. There's lots of input on fan issues. I think mine runs all the time as well.
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Old 12-14-2009, 09:22 AM
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Originally Posted by birgiro View Post
I have audi allroad 2.7t and my cooling fan are always on full speed even if the car is cold.
what could be wrong?
Switching off of a/c compressor by button ECON on a climate.
Listening fan - believe me, fan will be stopped.

Last edited by Romario; 12-14-2009 at 09:24 AM.
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Old 12-23-2009, 02:55 AM
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Originally Posted by Romario View Post
Switching off of a/c compressor by button ECON on a climate.
Listening fan - believe me, fan will be stopped.
It didin't work, it is something else
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Old 12-23-2009, 07:02 AM
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You may have a faulty fan switch, this is a relatively common problem:
replacement fan switches
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Old 12-23-2009, 07:04 AM
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fan control module, thermistor, or fan switch. VAG to know for sure.
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Old 06-26-2010, 12:11 AM
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try to check your switch, it maybe your switch is shorted or theres an issue on the wire.
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Old 06-28-2010, 01:23 PM
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The problem was the fan switch and I fix't it half year ago , but thanks for all the reply's
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