Mercedes-Benz E350 Dome Light Bulb Size

The Mercedes-Benz E350 dome light requires a 6411 bulb size for proper installation and function within the interior lighting system. Available data covers a span from 2006 through 2016 for the specified vehicle and component.

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
2006-2016	6411

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 36mm length, SV8.5 base. 12V, 5W.	6411

Other Locations

Additional Notes

The Mercedes-Benz E350 uses the 6411 bulb size for the dome light across the 2006-2016 model years.
The 6411 is a festoon-style bulb, meaning it is cylindrical in shape and mounts by pressing between two spring clips at each end rather than inserting into a socket.
The 6411 bulb measures 36mm in length, which is the span between its two contact ends and determines physical fitment within the dome light housing.
It uses an SV8.5 base designation, which refers to the festoon cap size and confirms compatibility with the spring-clip mounting points in the fixture.
The bulb operates at 12 volts and draws 5 watts, both standard values for low-power interior lighting in passenger vehicles.
The 6411 designation follows ANSI standards applicable in the United States and Canada, meaning the bulb conforms to a defined set of dimensional and electrical specifications recognized across those markets.
Because the 6411 is an ANSI-standardized part, bulbs carrying that designation from different manufacturers are expected to share the same 36mm length, SV8.5 base, 12V rating, and 5W rating.
Festoon bulbs of differing lengths, such as 31mm or 41mm variants, are not interchangeable with the 6411 even if they share the same base style, as the length must match the spacing of the housing clips.