BMW X3 Stepwell Bulb Size
The BMW X3 stepwell light uses DE3423 and 12961 bulb sizes according to the provided specifications for the vehicle interior lighting. Data for the listed components covers the range from 2004 through 2017.
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 |
|---|---|
| 2011-2017 | DE3423 |
| 2004-2010 | 12961 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V. | DE3423 |
| Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W. | 12961 |