Mercedes-Benz CLS550 Stepwell Bulb Size
The Mercedes-Benz CLS550 stepwell light uses bulb sizes 12961 and DE3423 for interior illumination. Available data for the specified vehicle components covers the period from 2007 through 2018.
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 |
|---|---|
| 2012-2018 | 12961 |
| 2007-2011 | 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 |