Hi folks - wondering if anyone has any thoughts on this. The fan has recently started to come on after I stop the car. It is a 2012 A5 Sportback Sline. I have this A5 3 years and this has never happened. Now when I drive 40km to work, stop the car, get out and lock it, the fan is staying on for 5 minutes. During the summer there was one or two really hot days where the fan stayed on after I stopped the car. I thought with the hot weather this is ok, it made sense. But today the temperature was just 14 degrees. Nothing else is jumping out at me: Coolant level is fine. Temperature gauge is bang on center before I turn off engine. No warning lights on dash I used to have VAGCOM but not anymore, so I will need to get someone to check for error codes. I think as sensor can go faulty without showing up warning light on dash right? And possibly without any error codes when you hook up VAGCOM? So I guess the quick thing to check is replacing the sensor? Is it just the coolant temp sensor? I guess the other thing is that the fans could have gone faulty? But I am not sure this would cause the behaviour I am seeing now?