Overheating in diesel Peugeot 5008: Possible malfunction in the cooling air flap system

Hi, I had the same problem with my 2006 diesel Peugeot 407. As it turned out, the wiring harness of the radiator shutter was rubbed, right where it is located behind the bumper. So this was actually affecting the cooling air flap, just as you suspect. As this poses a huge risk to the engine, I would definitely have it checked in a workshop. In my workshop, the wiring harness had to be replaced and the cooling air flap was replaced at the same time to prevent further problems. It wasn't a complicated job, just a bit time-consuming. Don't go crazy, but definitely get it checked soon before it causes serious engine damage. Hope this helps you!

(Translated from German)

Hey, thanks for sharing your experience with us! That sounds exactly like the problem I'm having. I hope it wasn't too expensive for you. Can you remember how much you spent on it? And has anything else happened since the repair? Your advice takes away some of my worries.

(Translated from German)

Hey, I'm glad I could help you a bit! Well, the repair at my garage, including replacing the wiring harness for the radiator shutter, cost a total of €270, so you'll probably have to budget around the same amount for that. Of course, that's not a lot of money, but since then the malfunction in the cooling air flap system has been completely rectified and I've had no further problems with it. So, I'd say it was definitely worth getting it fixed. I hope this answers your questions and takes away the rest of your worries!

(Translated from German)

Hey, thanks for the detailed info, that gives me a good feel for the situation. 270 is a lot of money, as you said, but if it fixes the problem and prevents further damage to the car, then it's worth it. Your advice is valuable and I appreciate the time you took to share it. I will get my car into the shop asap and have the cooling air flap system checked. Thanks again!

(Translated from German)