SAM electrical schematic circuit diagram for smart Roadster 452 showing fuses, relays, and power distribution connections.

Wiring schematic with fuses, relays, and electrical connections labeled with part numbers and wire gauges.

View full-size image ↗

See all Electrical figures for the Roadster (452), 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.