Wind overheating electric fan issue

Overheating can be a real pain! I experienced similar overheating issues on my old Peugeot 207, although the root cause might differ. The cooling system relies on the electric fan to dissipate heat, and a faulty fan can indeed lead to overheating. Did you check the fan's fuse and relay? A blown fuse or a faulty relay could prevent the fan from operating correctly. Also, the engine coolant temperature sensor provides readings to the ECU, which then commands the fan to turn on when needed. Has this sensor been checked?

Cheers for the input! Fuses look fine, but I'm not sure how to check the relay or the sensor. Is that a garage job then?

Checking the relay and sensor can be tricky without the right tools and knowledge. Given the symptoms and your initial assessment of a possible wiring issue, it might be best to take it to a workshop. They can properly diagnose the electrical components and hopefully resolve the issue without replacing the entire cooling system.

Right you are. Took it to the shop, and you were spot on. Defective plug connection. Cost me 95€ to sort out. Thanks for the help!