Hi there... Yes, I'm skirting your fan clutch question because I think there is another issue here.

Your car should get hotter than 55/60c after 30 minutes of driving, which leads me to suspect that either your thermostat is stuck open or the temp sensor which goes to your temperature gauge is bad. If the thermostat isn't to blame, then your temp sensor is bad. Keep in mind that your car has more than one temp sensor. There's a dual element sensor that goes to the fuel system and computer, and a single element sensor that goes only to the temp gauge. Not too terribly expensive. I have a 300SE that only showed 60-65c and what it needed was a new sensor. It now reads 80-85c.

The fact that it DOES get hotter on warm days leads me to suspect your thermostat is stuck open. Your gas mileage will improve significantly when you fix this.

Good luck.


-tp