Mercedes-Benz S420 Courtesy Bulb Size
The Mercedes-Benz S420 courtesy light uses bulb size 6411 or DE3423 depending on the specific application within the vehicle interior. Available data for the bulb specifications covers the range from 1995 to 1999.
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 |
|---|---|
| 1999 | 6411 |
| 1995-1998 | DE3423 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Festoon bulb, 36mm length, SV8.5 base. 12V, 5W. | 6411 |
| ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V. | DE3423 |