Front passenger airbag unit location and ignition squib identification on Smart 451 dashboard with restraint systems control unit mounted below crossmember.

Diagram showing passenger airbag in dashboard and two ignition squib connectors labeled R12/4 and R12/5, plus restraint control module location.

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See all Electrical figures for the Fortwo (450), or browse the full figure library. Part numbers and callouts are community-sourced and cross-referenced against the manuals — confirm with your VIN before ordering.