When I start my A5 (3ltr TDI) from cold, the cooling fans are on. Is this ok, and if not what could be the problem. The temp gauge never appears to rise, is that also due to the fans being on or is the thermostat stuck.
all suggestions are welcome.

 

If the AC is on, the fans will run. If not, it can be the temp sensor in the radiator that controls the fans.

 

Thanks Dave , yes the AC was on , now switched off, fans havs stopped.
Gilbert