Where is the OBD connector of Citroen C5 located?

2 Answers
McAngela
07/29/25 2:11am
The OBD connector of Citroen C5 is located inside the center console near the gear lever. OBD is the On-Board Diagnostics system, and its functions are: 1. To locate and describe faults in specific parts or components for easier maintenance; 2. To alert when faults cause excessive emissions, indicating increased environmental impact from pollutants. OBD includes: 1. EGR; 2. Engine; 3. Particulate filter; 4. Catalytic converter; 5. Oxygen sensor; 6. Emission control system; 7. Fuel system. The working principle of OBD is: when an emission fault occurs, the ECU records the fault information and related codes, and informs the driver through the malfunction indicator light or check engine light.
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FrankDella
08/12/25 6:11am
The OBD port of the Citroën C5 is located below the steering wheel, near the driver's left leg area, usually hidden behind a cover panel on the lower left side of the dashboard. Once seated in the driver's seat, you can bend down and feel a small square port, sometimes protected by a rubber cover. It's designed there for quick connection to diagnostic equipment, handling trouble codes or engine warning light issues. I've used it a few times before—its fixed position makes accidental contact unlikely, and it's DIY-friendly. Don’t confuse it with the cigarette lighter or USB port. Before driving, ensure the port is intact to avoid affecting safe driving. It's recommended to keep the port clean to prevent dust buildup from interfering with diagnostics.
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