Retrofit auxiliary heater timer installation procedure for Smart Fortwo 454 with numbered callouts showing dashboard removal, template positioning, and wiring harness routing.

Step-by-step installation guide for digital timer retrofit with 11 numbered callouts showing dashboard, interior panels, and wiring locations.

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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.