[Engine] Radiator fan

[Oldfella]

How can I check if the radiator fan is working it turns so not seized, but I have never heard it running

[Oldfella]

Anyone?

[Broken arrow]

I suppose the obvious answer is your engine never gets so hot that the fan needs to run... does the temperature needle stay constant?

[gammyleg]

Has it got aircon

[Blackshuck]

My '04 2.0 Hdi normally runs at just under 90° on the dial - however when I got caught in prolonged slow traffic on the M4 last Saturday ( in hot / sunny conditions ) it went a bit higher
( but still nowhere near the red ).
I have owned it for about 6 years & have never heard the fan cut in . It would be nice to know that it does work .....!