BMW 330i Tail Light Bulb Size
The BMW 330i tail light requires 2 distinct bulb sizes: P21W and P21/4W, with each size serving specific functions in the rear lighting assembly. The replacement chart covers vehicle production spanning 2001 to 2006, detailing bulb specifications across this model generation.
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 |
|---|---|
| 2004-2006 | P21W |
| 2001-2003 | P21/4W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAZ15d bayonet base. 12V, 21W/4W. | P21/4W |