Honda Mobilio Overheating: Warning Signs & Solutions

Hey there! I had a similar issue with my 2013 Honda City (1.5L gas engine) last year. The symptoms were exactly what you're describing, overheating engine and check engine light. Took it to my mechanic, and turns out it was indeed the coolant pump, but specifically the electrical cable that controls the pump was damaged. The cable had worn out and wasn't sending proper signals to the control unit. This was causing the pump to malfunction intermittently. It was actually a serious issue that needed immediate attention because continuous overheating could have damaged the engine. The fix involved replacing the cable assembly and the pump itself since it had been stressed from the irregular operation. My advice? When talking to mechanics, specifically ask them to check the electrical connections to the coolant pump, not just the pump itself. Get them to do a proper diagnostic scan first before any repairs. And definitely don't drive the car much until it's fixed, overheating can cause major engine damage. Good luck!

Thanks for sharing your experience! That's really helpful as I'm dealing with the exact same symptoms. It's good to know about the electrical cable being a potential culprit, wouldn't have thought to check that. Just curious, do you remember roughly how much you ended up paying for the whole repair? Also, has everything been running smoothly since then, or have you noticed any other issues pop up?

Hey again! Happy to give you an update! I just got my car back from the mechanic last week for this exact issue, and I've got good news. The "Coolant pump function limited" warning is completely gone now. Turned out it was exactly what I suspected, that pesky cable on the pump/control unit was acting up. Final bill came to 220€, which honestly wasn't as bad as I was expecting given all the stress it caused! The best part? The car's running like a dream now, no more overheating issues, no warning lights, nothing. It's such a relief! Since you asked about follow-up problems, nope, not a single one! Everything's been perfect since the repair. The engine temperature stays exactly where it should be, even during longer drives. Looking back, I'm just glad I got it sorted before any serious damage happened to the engine. Just make sure whoever fixes yours takes a good look at those electrical connections, that's really where the problem usually hides! Let me know how yours turns out!

Thanks so much for all the detailed info! I actually just got back from the mechanic today. You were spot on about getting it checked quickly, I'm so glad I didn't wait any longer. My issue turned out to be slightly different though. They found a small crack in the coolant reservoir that was causing the system to lose pressure. Plus, there was a faulty sensor that kept triggering the check engine light. Total repair cost was a bit higher than yours at 350€, but at least it's all sorted now. The mechanic was really thorough and even showed me the cracked part. Really appreciate everyone's advice here, it definitely helped me ask the right questions and understand what was going on. Car's running perfectly now, and the temperature gauge is staying right where it should be. Feels good to have this sorted! Thanks again for helping me out with this!