its a bit of an ongoing problem i had with the car.. i have a switch in the dash which i use but have left the fan switch plug in the rad disconnected as seemed to warm up then the fans come on but wont turn off untill the engine goes off then the shut off after 20 secs.. everything is brand new.. engine , all hoses, alloy rad all sensors thermostat .. the car does not run hot just wanted to set temp on this encase i forget to use the switch one time and fook my new engine..