Anyone know anything about radiator fans. I noticed today my fans were on. The car was warmed up but it wasn't hot weather or stuck in traffic. The only difference from normal was I was driving around with the climate control turned off. The reason I ask is I think it's the first time I've noticed the fans or more specifically heard them in any weather. Have had a smell of coolant coming from the car for a year or so but I'm not losing any coolant from the radiator top up tank and never had to top up. The air con isn't the coldest when it's on. Any words of wisdom would be appreciated