Overheating problems and possible malfunction in the cooling air flap system in a Citroen C8 petrol engine (built in 2006) - experience and solution tips wanted

Hi, I had a similar problem with my 2004 Citroen C5. I am not a car mechanic, but have some experience with cars. My mechanic found that the wiring harness of the radiator shutter was defective/rubbed up behind the bumper. It cost me 270 euros to fix this problem. Could you please give me more vehicle information? Maybe then I could help you more precisely.

(Translated from German)

Hi, thanks for your reply! It's good to know that I'm not the only one with this problem. My C8 currently has 8285 kilometers on the clock. It's only been a short time since the last service, but they didn't find anything wrong. Then I should probably have a look at this wiring harness after all. Your tip will definitely help me, thank you!

(Translated from German)

No problem, always happy to help! Yes, have your garage check the wiring harness. They may well have overlooked it during the service. Maybe you could also ask them to check the thermostat and coolant level while they're at it. That might also help you solve the overheating problem. I hope that helps! Keep us posted on how it goes. Good luck!

(Translated from German)

Thanks again for the valuable tips! I will definitely ask if they can also check the thermostat and coolant level. It's very reassuring to get such helpful advice. I will definitely let you know how it turns out. Have a nice day!

(Translated from German)