Engine fan is constantly on. Help please!

[vipergrm]

Hi guys,

There seems to be an issue with my Audi (A4 Avant Sport 1.9 TDI 130 2002) whereby the engine fan is ALWAYS on. Even when I first start the car in the morning the fan comes on immediately. Also, if I turn the key to the on position without starting the engine the fan also starts and stays on throughout the journey until I literally switch off the ignition. The temp gauge is working fine. I'm guessing there's a sensor or something that is giving incorrect feedback regarding engine temperature. Any ideas what might be wrong? I hope I have explained this alright!

Thanks in advance for any assistance/ideas ​

 

[quattrojames]

http://www.audi-sport.net/vb/a4-a4-...26385-main-fans-running-after-switch-off.html

 

[vipergrm]

http://www.audi-sport.net/vb/a4-a4-...26385-main-fans-running-after-switch-off.html

Thanks for that! Looks like this might well be the problem then. I'll have a look at mine to see if it's come loose maybe. Any ideas of a good site to buy a replacement in case I need one? Cheers Quattrojames

 

[quattrojames]

There's two fans iirc. The viscous fan is temp dependant and the electric fan runs with the air con. I think thats the case, maybe someone can confirm.

Try GFS or TPS (Trade Parts Specialists) for prices.

 

[vipergrm]

There's two fans iirc. The viscous fan is temp dependant and the electric fan runs with the air con. I think thats the case, maybe someone can confirm.

Try GFS or TPS (Trade Parts Specialists) for prices.

Thanks for that. Ill check out those Trade specialists!

 

[vipergrm]

Hi guys,

I've got the replacement ECT (Electronic Coolant Temperatue) sensor however, I cannot find the ECT! I've read some guides with pics attached but I still cannot find the actual ECT anywhere in the engine compartment. Any ideas where this is located in an Audi A4 Avant 1.9 TDI Sport (B6)? Thanks!

 

[scottshere]

Its right at the back of the engine near the bulkhead.
Right pain to get to and has a plastic clip holding it in.
Look down from the drivers side and you should see a dark green plug.

Its a good idea to have the new one handy, so as not to loose all the water.