Seat Tarraco Hybrid Engine Trouble

A restricted cooling grille could cause those symptoms, especially the slow warm-up. I drive a Tarraco too and had similar issues, though with a petrol engine. Does the check engine light show any error codes? Have you checked the radiator grille for radiator blockage or obstructions? Is the fan working?

Thanks. I haven't checked the error codes, but I will. I didn't see any radiator blockage, but maybe I missed something. When you say 'similar issues', do you mean the same symptoms?

Yes, the symptoms were almost identical. The temperature readings were the most concerning. A more thorough check might be needed to rule out a partial radiator blockage. The fuse issue is interesting. If a fuse for the cooling system is blown, it could cause these problems, especially if it controls the cooling fan or the radiator grille. I'd suggest a workshop check.

It was a defective fuse linked to the automotive cooling system, like you thought. The radiator grille is okay, no radiator blockage. Cost 52€. Cheers for the tip!