Transmitter battery replacement procedure for key fob, showing disassembled casing and battery insertion steps.

Key fob disassembled with transmitter battery labeled callout 2, showing battery compartment and reassembly instruction.

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See all Electrical figures for the Fortwo (451), 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.