BMW 540i Tail Light Bulb Size
The BMW 540i tail light requires bulb size 12821 or 5008 depending on the specific version of the vehicle. Data for the bulb sizes covers the range from 1994 to 2000.
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 |
|---|---|
| 1997-2000 | 12821 |
| 1994-1995 | 5008 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W. | 12821 |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V. | 5008 |