BMW 740i Brake Bulb Size
The BMW 740i brake light utilizes H21W, P21/5W, and P21W bulb sizes depending on the specific production version. Available data for the lighting components covers the period from 1993 through 2015.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Brake
| Years | Bulb Size |
|---|---|
| 2011-2015 | H21W (Adaptive) |
| 1999-2001 | P21/5W |
| 1997-1998 | P21W |
| 1993-1995 | P21W |
Center High Mount Stop Light
| Years | Bulb Size |
|---|---|
| 1997-2001 | P21W |
| 1993-1995 | P21W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BAY9s base. 12V, 21W. | H21W |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |