Transponder coil L11 and electrical connector identification for 451 model; microwave sensor B32 location and components for antitheft alarm system.

Two service procedures showing transponder coil removal steps and microwave sensor identification on smart 451 model.

View full-size image ↗

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.