Cima Hybrid Overheating

I'm seeing signs of a bad thermostat cooling circuit motor in my 2020 Nissan Cima hybrid. The engine is overheating and takes forever to warm up. A bad map thermostat seems likely. Has anyone else run into this or have diagnostic tips before I replace it?

4 comment(s)

Overheating is never good. I had something similar with my old 2012 BMW 3 Series, but it was a different engine. It was a dodgy temperature sensor messing with the cooling fan. Have you checked that the cooling fan is kicking in when the engine gets hot? Might be an easy fix.

Thanks, I checked the cooling fan, and it seems to work fine. Coolant level is good, and no leaks. What symptoms did your BMW have? Did it also take a long time to warm up, or was overheating the main sign?

Overheating was the main thing. It would creep up fast, especially in traffic. Slow warm-up wasn't as obvious, but thinking back, it probably was taking longer. If your fan's okay and no leaks, and you think it's the thermostat, get it checked by a workshop. Could be more serious.

Thanks for sharing your experience. Based on what you said and my initial thoughts, I'll get a professional diagnosis and replace the thermostat. I was quoted about 350€ for the repair. Thanks again.

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