Valve wrench tool (203 589 03 10 00) and AC dehydrator filling valve, pressure line, suction pipe locations on 451.3/4 chassis.

Valve wrench tool diagram and AC system component identification on smart fortwo with callout labels.

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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.