Mercedes-Benz C-Class
2021–2024

Illustrative — for orientation only.

Location

Driver's side footwell, under the lower dashboard, to the left of the steering column and beyond the bonnet release lever. Small snap-off plastic cover must be removed by hand — no tools required. On right-hand drive (UK) vehicles the port is set further back than expected: follow the underside of the dashboard past the bonnet release lever and the port is behind a cover slightly to the left of centre. Consistent with the preceding W205 — same dashboard zone and cover type confirmed by Mercedes forum guidance for W206.