manuel_roth1
Cima Hybrid Overheating
Summary of the thread
The 2020 Nissan Cima hybrid is experiencing engine overheating and slow warm-up, suggesting a potential issue with the thermostat cooling circuit motor. A faulty map thermostat is suspected as the cause. While the cooling fan and coolant levels appear normal, professional diagnosis and thermostat replacement are recommended to resolve the issue.
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4 comment(s)
manuel_roth1 (community.author)
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?
levi_koenig70
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.
manuel_roth1 (community.author)
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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NISSAN
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CIMA
levi_koenig70
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.