Saxo temperature issues

I had similar issues with my Saxo. Have you made sure nothing's blocking the radiator grille? Leaves or even a plastic bag can really mess with the airflow.

Thanks, I checked the radiator grille and cleared some bits, but it's still happening. Could a dodgy fuse for the radiator fan cause these symptoms too?

A fuse issue could mess with the fan and maybe cause overheating, but your symptoms sound more like a direct blockage. Since cleaning the grille didn't fix it, I'd get a workshop to check for radiator blockages or thermostat problems.

Took it to a mechanic, and you were right, the cooling grille was the problem. They replaced a broken part linked to it. Cost me 52€. Runs like a dream now. Cheers!