Left and right taillamps (E3/E4) and CBS rear end assembly identification with removal/installation procedure for smart 451.

Rear bumper assembly showing left taillight E3, right taillight E4, CBS rear end component 1, and retaining clips at points A and B.

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.