Seat heater (SIH) component locations on 451 chassis showing control unit, switches, and heated cushions.

Three interior photos showing seat heater control unit, dashboard switches, and seat cushion locations.

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See all HVAC & Comfort 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.