Model 453 radio code request label showing security code, serial number, and part number for smart Media system and radio variants.

Radio housing adhesive label with barcode, security code K336, serial number, and part number A 453 900 1402.

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See all Electrical 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.