SabiHell
Check engine light and warning light in speedometer for 2018 Citroen DS5 Diesel: experience and tips wanted
(Translated from German)
Summary of the thread
A 2018 Citroen DS5 Diesel owner is experiencing issues with the check engine light and a warning light on the speedometer. The suspected cause is a faulty fuel filler flap position sensor. Another person shared a similar experience with a Citroen C5, where the problem was due to a defective control unit, which required replacement. The advice given is to have the car checked by a professional to diagnose and resolve the issue promptly.
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4 comment(s)
SabiHell (community.author)
Hey, thanks for the quick response. I was a bit down about the control unit... I'll keep my fingers crossed that it doesn't end up like that for me. Can you perhaps remember what you ended up having to pay for it? And have you had any other problems with your C5 since then? I'm telling you, these car problems can really get you down. Regards.
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MWeber92
Moin, of course I still remember the costs, it was no mean feat - I easily had to put €1000 on the table to repair the defective control unit. Not exactly a bargain, but certainly better than breaking down somewhere on the highway, right? Since I went to the mechanic, my C5 has been running like a lamb. The fuel filler flap position sensor you mentioned hasn't given me any more faults either. I know, car problems can really drive you to despair. But don't worry, make an appointment with the garage first, it's often not as bad as you think. Keep your chin up! Greetings back.
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SabiHell (community.author)
Hello, yes, the €1000 is a hard blow... But you're right, it's better than breaking down on the highway. It's good to hear that your C5 has been running perfectly since then. I'll take your advice and make an appointment with the garage as soon as possible. Thank you for your help and your words of encouragement. Take care and see you next time! Best regards.
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DS5
MWeber92
Hello, I had a similar problem with my 2015 Citroen C5. In my case, the control unit was actually defective. It started just like yours, with the check engine light and the warning light coming on. I was at a loss at first, but then went to the workshop. The control unit had to be replaced. So the damage was pretty serious, because the control unit has many different functions. I can only advise you to have it checked quickly and repaired if necessary. I probably wouldn't have got very far without that. Good luck fixing the problem, and it's better to have it checked by the professionals!
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