Peugeot 3008 cold start injector issue

Hey! I drive a 3008 too, and your issue sounds awfully familiar. Rough idle and hard starting, especially when it's cold? Sounds like a fuelling issue. Have you considered a fuel injector test? It could be a faulty injector not delivering the right amount of fuel during startup. That's what was wrong with mine!

I suspect a fuel system issue. Can you give me more details about the fuel injector test, and how you found the defective injector? Your experience would be a great help.

Okay, so I didn't actually do the test myself. After experiencing the exact same symptoms, I took it straight to a trusted workshop. They performed the injector test and confirmed that one of the injectors was bad. They advised replacement before it caused any further issues. Ultimately, it was cheaper and less hassle to get a professional diagnosis than fiddling around myself, especially with the high-pressure fuel system.

Thanks for the insights. I've scheduled a consultation with a workshop. The estimated cost is 515€, including injector replacement and labor. I'll post the final outcome here to help others.