Hello everyone,

I have a question regarding fan control via the ECU.
Does anyone know which maps need to be adjusted in order to change how the radiator fans are controlled?

I’ve noticed that the fans are completely switched off by the ECU once the car goes above ~130 km/h, and in general they tend to switch on fairly late. I’d like to optimize or modify this behavior.

As far as I know, the fans are controlled by the ECU through a PWM signal. There’s no separate thermo switch in this setup, only a 2-pin sensor at the radiator outlet.

Thanks in advance!