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Discussion Starter #1
i have a t5 2,5 tdi 174bhp
the radiatorfans are on max all the time when the engine is running. first i got a tip that the presuresensor on the ac was broken.
but it didnt help to change it.

were is the fanreley located?

anyone got any ideas whats wrong??

*sorry if my english isnt the best... im from sweden*

//Johnny
 

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Hi mate. Its prob the coolant sensor in bottom of rad. This happened to mine. Very easy and cheap fix. Hope this helps.
 

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Discussion Starter #3
thanks ill look it up.


did your both fans run?

when i talked to the vwshop he said that i didnt have a sensor in the rad?!?!?

//johnny
 

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Both mine were constantly on. There is a sensor on ours (2.5 130) in rad at bottom pass side. Dead easy to change. Held in with a circlip/prong type thing....Matt
 

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Discussion Starter #5
today i replaced the sensor in the rad... fans still running on max.

do i have to clear the errorcodes when i change a sensor?

//johnny
 

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There is a tempeture sensor located in the bumper.Check that the connection is ok.There is also a connection between the bumper and the body located in front of the drivers wheel.Hope this helps
 

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I had this problem when the connection on the bumper came undone.From what i can gather if the ecu cannot read the sensor it sends the rad into safe mode.
 

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Discussion Starter #9
i have no errorcode on the bumpersensor.

BUT... i have errorcodes on the pressuresensor on the ac and the airqualitysensor. shortcut or connected to ground it says??
the acsensor is new but it did`t get any better.

//johnny
 
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