T30 (1st gen) 2001–2007
Driver's footwell, above the pedals on the right side of the steering column. The 16-pin white connector is behind a snap-off plastic knee panel. Once the panel is removed, the fuse box and OBD port are visible together. The port faces downward. Same location across all UK T30 trims (S, Sport, SE, SVE, T-Spec) and all engine variants (2.0, 2.2 Di, 2.2 dCi, 2.5).