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How to Fix a Citroen C3 with Irregular Idle and Difficult Starting

Model: Citroen C3 SC - Years 2009-2016
Part: Engine

This video shows how to resolve the issue of the engine light being on, with irregular idle and difficult starting. Even if regular maintenance is performed, deeper servicing is sometimes necessary, as exhaust gas vapours can contaminate the sensors, causing irregular engine operation, especially when cold, but also when hot - hence the irregular idle. On a vehicle like the Citroen C3, removing and cleaning the various components is not difficult, as demonstrated by our YouTuber, and you will notice significant improvements in performance and fuel consumption. After cleaning, it will take several miles for the ECU to readapt to the new configuration, but performance will improve.

Updated on 16 August 2026 by ScegliAuto

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by ScegliAuto

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