Hey, I can really understand you. I had similar problems with my Citroen C4 from 2019. The cause was actually a defective activated charcoal filter. The filter itself is not the problem, but finding the leak was the bigger challenge. My mechanic said that defective activated charcoal filters can severely disrupt the engine's running behavior and it's important to fix it to protect the engine. So I'd say it's a serious issue that you shouldn't ignore. Hope I could help you!

(Translated from German)

Hey, thanks for your quick reply and the information! That's right, I didn't have an activated carbon filter like that on my radar before, but it sounds really plausible. Did you have any problems afterwards or was that the end of it for you? And can you remember how much you paid your mechanic for the repair? I'm just trying to estimate the costs so that I'm a little more prepared. Thanks again for your help!

(Translated from German)

Hey, no problem! So after my mechanic repaired the leak in the tank ventilation system, my Citroen really ran like clockwork again. I haven't had any more problems since then. As for the price: I had to fork out a total of €275 to repair the defective activated carbon filter. That wasn't necessarily a bargain, of course, but it was definitely worth it. So if you find this problematic, save up! Hopefully I've been able to help you!

(Translated from German)

Hey, that's just the info I needed! Thank you very much! I can now plan better with the price. And of course, if it runs smoothly again, it's definitely worth it. I will tackle this as soon as possible. Thanks again for your help!

(Translated from German)