GrandlandX Hybrid Overheating: Electric Pump Suspicion

I experienced a similar issue with my 2019 Vauxhall Crossland X Hybrid last winter. The symptoms were exactly the same, overheating and check engine light. After taking it to my local certified mechanic, they diagnosed a faulty cable connection to the electric coolant pump. The control unit wasn't receiving proper signals from the pump. The repair involved replacing the wiring harness and a sensor on the pump unit. It was quite a serious issue that needed immediate attention since continuous overheating could damage the hybrid system. The whole repair took about two days because they had to order the specific parts. If you're not comfortable with the dealer, I'd recommend finding a certified hybrid specialist. These cooling system issues in hybrid vehicles are more complex than in conventional cars since they need to manage both the engine and electric motor cooling circuits.

Thanks for sharing your experience! That's really helpful. I'm thinking I might have something similar going on with my GrandlandX. Do you remember roughly how much the repair set you back? Also, just curious, have you had any other cooling issues since they fixed it? I'm trying to figure out if I should brace myself for more problems down the line. Cheers!

Hey there! Just wanted to follow up about my Crossland X issue. After seeing my mechanic, it turned out I was spot on about the electric coolant pump problem. They found a dodgy cable connection between the pump and control unit, got it sorted pretty quickly. The whole thing set me back €95, which wasn't too bad considering what I was worried it might cost! Best part is, I haven't had a single cooling issue since they fixed it, the car's been running like a dream for months now. Looking back, I'm really glad I got it checked out when I did. These hybrid cooling systems can be tricky, but once they're properly fixed, they're usually pretty reliable. Hope this helps give you an idea of what you might be dealing with. Let me know if you need any other info!

Hey, thanks so much for all the details! Just wanted to update you on what happened with my GrandlandX. I finally took it to a certified hybrid specialist last week, and you were right about getting it checked quickly. Turns out it was indeed the coolant pump, but in my case, the pump itself had failed, not just the wiring. The repair cost me about €280, which was more than yours but still better than what I feared. They got it done in a day, and I'm really happy with their service. The car's running perfectly now, no more overheating or warning lights. Really appreciate everyone's input here. It definitely helped me make the right decision instead of putting it off. Will definitely recommend this specialist to other hybrid owners. Thanks again for all your help! Take care!