Engine fan running after engine shutdown

[zei20t]

idling a car down is a good thing, however sitting there not moving for 5 mins to let your turbo 'cool down' is a myth. water cooled turbos have water cooling specificially for this reason. in fact, not moving at all is probably worse as the fans cant draw in the same volume of air that your car travelling at 50km/h can.

The fans stay on to draw cool(er) air to vent the heat that would normally stay under the bonnet. its happened to me a few times now, im not sure if water temps or oil temps trigger it. As the water temp gauge is padded, i really cant tell which one it is!

[woofy]

Its highly dependant on where your car is, at our previous place, the garage was in the sun a lot and also had perspex clear panels in the roof. Our new place is part of the house and also shares the roof space with the house so gets more ventilation and is in shade when I get home. Its a lot cooler. At the previous place it was not uncommon to come home and have the car fans running up to 15min after parking on a hot day. I rarely have it happen at all in the new place. I also do a more sedate drive coming along my street to let things cool down whereas previously I used to fly into my own driveway. I also used to leave the garage door open when it was running otherwise it ran even longer as the garage got hotter.