Peugeot 607 Overheating Communication Fault

Sounds familiar. I had a similar issue on my 607 with overheating and coolant loss. Was it throwing any diagnostic trouble codes related to the CAN bus or any other communication faults?

Yes, it's throwing a communication fault code. Where was the fault located on your car?

Turned out to be a defective cable or plug connection of the component. I spent ages trying to trace it myself and gave up. I ended up taking it to a workshop, they diagnosed it quickly and sorted it for 95€. Probably best to get it checked out properly.

Thanks for the advice. I'll take it to a workshop to get it checked out.