Mercedes-Benz 300SD Brake Bulb Size
The Mercedes-Benz 300SD brake light utilizes P21W and P21/4W bulb sizes depending on the specific production period. Data for the bulb specifications covers the range from 1978 to 1993.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Bulb Size by Year Range
| Years | Bulb Size |
|---|---|
| 1992-1993 | P21/4W |
| 1978-1985 | P21W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAZ15d bayonet base. 12V, 21W/4W. | P21/4W |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |