Key battery replacement procedure for Smart fortwo 453, including fixed key disassembly and coin cell battery swap steps.

Instructions for replacing key fob battery with numbered callouts showing disassembly and battery insertion.

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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.