Engine 454 cooling system cap and expansion reservoir location; fluid level check and antifreeze inspection procedure with safety warnings.

Two photos showing cooling system cap location on engine and expansion reservoir under hood; service steps numbered 1-5.

View full-size image ↗

See all Powertrain figures for the Fortwo / Forfour (453), 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.