Service procedures table for model 451.3/4 smart fortwo including horn, starter-alternator, switches, and battery maintenance operations.

Table listing removal, installation, and replacement procedures for smart fortwo 451.3/4 electrical components with part numbers.

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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.