Smart Fortwo Side Marker Bulb Size
The Smart Fortwo rear side marker bulb uses a P21/5W size across the model line. The replacement chart covers 2008 to 2018 production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Rear Side Marker
| Years | Bulb Size |
|---|---|
| 2016-2018 | P21/5W (Without LED Tail Lights) |
| 2008-2015 | P21/5W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W |