LukasFischFan

Citroen C8 malfunctions: Continuous engine problems and high fuel consumption

Hey guys, I have a question. I've recently noticed a few problems with my Citroen C8, built in 2014, petrol engine with 125144 km on the clock. The car shows smoke from the exhaust when accelerating, the check engine light is constantly on, the engine cuts out whenever it feels like it, I can feel a drop in power, the engine runs unevenly, jerks when accelerating, swallows far too much fuel, stinks from the exhaust and cuts out when I'm idling. I suspect the problem may be the faulty rail pressure sensor, based on my recent mechanic experience. Have any of you been through something similar? How did it go with your mechanic? Any tips on who I could turn to? Grateful for any advice.

(Translated from German)

A Citroen C8 owner is experiencing multiple engine issues, including smoke from the exhaust, a persistent check engine light, engine stalling, power loss, uneven running, jerking during acceleration, excessive fuel consumption, and a foul exhaust smell. The suspected cause is a faulty rail pressure sensor. A similar case with a Citroen C5 was resolved by replacing the sensor, leading to smooth operation. The recommendation is to have the car checked by a reliable mechanic to confirm and address the issue.

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4 comment(s)

Hey, I had a similar problem with my 2011 Citroen C5. As you suspected, the problem was indeed with the rail pressure sensor. My car showed similar symptoms to yours, it was definitely not a small problem. The rough engine running and constant shutdown at idle are typical signs. After a few visits to the garage, they finally found the faulty pressure sensor and replaced it. It then worked smoothly again. I recommend you take the car to a trustworthy garage. They should be able to pinpoint the problem just like they did with my car. It's definitely an issue that needs to be fixed, so don't wait too long and get it checked out. Good luck!

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Hey, thanks for your reply! It's good to hear that it solved the problem for you, but I'm just imagining how expensive it must have been.... Can you remember what you paid back then? And have there been any other problems with your car since then that could be related to the rail pressure sensor?

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Hey, no problem, you're welcome! On the question of cost... I remember that I paid around €240 for the repair of the defective pressure sensor. Yes, that's not exactly cheap, but considering that my car has been running like clockwork ever since, it was well worth it. As for any other problems: since the mechanic fixed the issue with the faulty signal from the rail pressure sensor, everything has actually been fine. No other problems that could be related to this. So from my experience, I would say go for it and get it fixed. Your Citroen will thank you for it!

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240 euros, hmm... Oh well, if it helps get the car running again, then I guess it will be worth the money. I'm glad to hear you haven't had any more problems since, that gives me some hope. I'll look for a garage tomorrow and hope it goes the same for me. Thanks again for your advice, that really helped me!

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