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JoPe2021

Electrical faults and navigation problems in a Citroën C8 Diesel 2013

Navigationssystem is not working

Warning light in the speedometer of the vehicle

General electric malfunction

Hey guys, I've got a problem with my Citroën C8 Diesel from 2013 (it's already done 117,882 KM). Recently, it has been showing some strange symptoms, such as general electrical faults and navigation not working. There is also a warning light in the speedometer. Somehow I think that the communication between the control units may be faulty. Has anyone had similar experiences, especially when it comes to troubleshooting at the mechanic? Unfortunately, my last visit to the garage was not a great experience. Thanks in advance for your help! Regards

(Translated from German)

4 comment(s)


MarWa87

Hi, I had a similar problem with my Citroën C5 Diesel from 2010. The car showed similar symptoms, including electrical faults and navigation not working. The cause was a faulty control unit sending incorrect signals to the BUS system. It was definitely a complex problem that took some time to diagnose. After a few tests, the mechanic determined that the control unit needed to be replaced. It was important that the new ECU was fitted and programmed correctly to ensure that the problem would not recur. It was a serious matter as the ECU plays a central role in the functioning of various components of the vehicle. But after the ECU was replaced, everything worked fine again. Hope this helps you! Best regards.

(Translated from German)

JoPe2021 (Author)

Hi, thanks for the quick reply and the informative report on the same problem with your Citroën C5. Seems like replacing the ECU could really be the solution. Do you happen to remember what the repair cost was at the time? And have there been any further complications since then or is everything running smoothly again now? Looking forward to your answer! Best regards.

(Translated from German)

MarWa87

Hello, you're welcome! First of all, since the new control unit was installed, everything has been running like clockwork, so communication between the control units is no longer disrupted. However, your wallet will be less happy, as the bill at the time was around €1000. Replacing the defective control unit and rectifying the faulty signals on the BUS system has its price. But hey, things have been quiet since then, so the investment was worth it. Hope this helps you! Best regards.

(Translated from German)

JoPe2021 (Author)

Hello, many thanks for the further help! It sounds as if the investment was worthwhile, even if €1000 is not a small amount to begin with. But of course I want my Citroën C8 to run smoothly again and remain reliable in the long term. So I will definitely consider replacing the control unit. Thanks again for your valuable input! Best regards.

(Translated from German)

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