Smart Audio-System operating procedures: USB1 port cover removal, time/language settings, sound adjustments, bass boost control.

Audio system setup instructions with USB port diagram and menu navigation steps for Smart forfour.

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See all HVAC & Comfort 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.