Mercedes-Benz GLS450 Fog Light Bulb Size
Mercedes-Benz GLS450 rear fog light uses H21W bulb size for replacement. The chart contains bulb size specifications covering 2017 to 2019 production years.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Rear Fog Light
| Years | Bulb Size |
|---|---|
| 2017-2019 | H21W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BAY9s base. 12V, 21W. | H21W |