Keysolved

Citroën C4 OBD port location

One generation, 2010–2018.

2010–2018

Mk2 (B7)

Illustration — use it to know where to look.

Location

RHD and LHD: Lower centre of the dashboard, below the climate/air-conditioning controls, roughly central rather than out by the driver's knee. Behind a small removable plastic trim panel — once that panel is off, the 16-pin socket sits just inside, angled towards the driver. Same position across all C4 II (B7) hatch and saloon trims. A handful of very early B7 cars carry the older C4 layout with the socket behind the centre-console ashtray bin, so if it is not below the climate controls, pull the ashtray/bin out and check directly behind it.

Also on this C4

  • KeysFlip remote · Smart key
  • Tools confirmed26
  • Transponder chipSubscribers
  • Programming procedureSubscribers
Open the full C4 Mk2 record

Questions

Citroën C4 OBD questions

Mk2 (2010–2018): RHD and LHD: Lower centre of the dashboard, below the climate/air-conditioning controls, roughly central rather than out by the driver's knee.

Other Citroëns

Found the port. Now program the key.

Step-by-step add-key and all-keys-lost procedures for every C4, which of your tools will do it, and what catches people out.

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