BMW 535i Stepwell Bulb Size
The BMW 535i stepwell light uses 12961 and DE3423 bulb sizes according to the provided specifications for the interior lighting system. Data for the specific components covers the range from 2008 through 2016.
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 |
|---|---|
| 2011-2016 | 12961 |
| 2008-2010 | DE3423 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W. | 12961 |
| ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V. | DE3423 |