Peugeot 307 glow plug issue

I had a similar issue with my 307 diesel. Rough idle, and my fuel efficiency took a hit. Did you notice any change in how the engine is running, or have you checked the glow plugs themselves?

Thanks for the quick reply! Yes, the idle is a bit rougher than usual. How did you confirm it was the glow plugs, and what was the impact on engine combustion?

My mechanic confirmed it. The error codes pointed to the glow plugs, and testing them showed they weren't working correctly. Given the symptoms, you likely have a defective glow plug. I'd recommend a visit to the workshop.

Thanks for the advice! You were spot on. Took it to the workshop, and it was indeed a glow plug failure. Cost me 440€ to get it sorted. Runs much better now!