Mercedes-Benz 300D Seat Belt Warning Bulb Size
The Mercedes-Benz 300D seat belt warning light utilizes a specific 2721 bulb size for illumination within the instrument cluster. Available information covers a span of time starting from 1977 through 1993.
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 |
|---|---|
| 1990-1993 | 2721 |
| 1987 | 2721 |
| 1977-1985 | 2721 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W. | 2721 |