Peugeot Expert Overheating

I had something similar with my old Opel Astra. Check engine light and overheating sounds familiar. In my case, it was a faulty thermostat that stopped the cooling fan from working. Is your fan working properly? Check the coolant level, just in case.

The coolant level seems fine, and the fan appears to be working. But an active air flap fault code came up when I ran diagnostics. Could the electromechanism be causing this overheating issue? Has anyone dealt with the air intake system before?

If you're getting a specific fault code for the air flap, that sounds like a likely cause. My Astra didn't throw any codes like that. If it's the flap motor, take it to a workshop to get properly diagnosed. They can pinpoint the exact issue and give you a quote. Don't risk further damage!

I took it to the workshop, and you were right – it was the electromechanism of the active air flap. The repair cost 590€, but my Peugeot is back on the road. Thanks for your help!