Mercedes-Benz E300 Turn Signal Bulb Size
Mercedes-Benz E300 front turn signal bulbs use PY21W, 1156NA, or P21/5W sizes, while rear turn signal bulbs use 921, 1156NA, or P21W sizes. The replacement bulb chart covers 1995 through 2019 production years.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Turn Signal
| Years | Bulb Size |
|---|---|
| 2017-2019 | PY21W |
| 1996-1999 | 1156NA |
| 1995 | P21/5W |
Rear Turn Signal
| Years | Bulb Size |
|---|---|
| 2019 | 921 |
| 1997-1999 | 1156NA |
| 1996 | P21W |
| 1995 | PY21W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W. | PY21W |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base, natural amber glass. 12V, 21W. | 1156NA |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W |
| ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W. | 921 |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |