Refrigeration cycle function diagram for model 451 air conditioning system showing capacitor, expansion valve, evaporator, compressor, and high/low-pressure circuits.

Refrigeration cycle schematic with colored lines indicating high and low pressure circuits and component 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.