Greetings from Croatia 626 GE 2.5 V6

[JokeCro]

Guys, can someone tell me what exactly is the radiator fan switch/coolant fan switch and where is it located? I can't find a manual for it. I installed a new ECT coolant sensor, a cap (since the old one started leaking), a new relay, but it still turns on the fans late.

[Kampfkuchen]

Did you try my hint with the diagnostics mode? There is no thermostate switch for the fan. It is controlled by the ECU. I think the low-speed fan doesn't work. Maybe you have to replace the fan. If you have a multimeter, check the fan for open circuits.
Are the fuses fine?

I will send you the service manual.