Mercedes-Benz 300SD Seat Belt Warning Bulb Size
The Mercedes-Benz 300SD seat belt warning light requires a 2721 bulb size for proper operation within the instrument cluster assembly. Data for the specified lighting component covers the range from 1981 through 1985.
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 Type | Shop |
|---|---|---|
| 1981-1985 | 2721 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 2W. | 2721 | Check Price |