Fan works when engine is cold
 

Hi,

I own 2002 A6 C5 2.7T TIP
The passenger side electric fan works when I start the engine in the morning while the engine it totally cold and the AC is off.
It runs for about 60 seconds, then stops for a 10 second and keep doing it until engine gets to operating temperature.

Any ideas ?

Thanks
Yaron
https://cimg2.ibsrv.net/gimg/www.aud...fb224174e2.jpg
This fan works when the engine is cold