The BMW 850i brake light requires a P21W bulb size for the lighting system. Data for the specific component covers the range from 1991 to 1992.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Brake
| Years | Bulb Size |
|---|
| 1993-1997 | P21W |
Center High Mount Stop Light
| Years | Bulb Size |
|---|
| 1993-1997 | P21W |
Bulb Specifications
| Description |
Bulb Size |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |