Mercedes-Benz CLS63 AMG Dome Light Bulb Size

The Mercedes-Benz CLS63 AMG dome light requires a 6411 bulb size for proper installation and function within the interior lighting system. Available data for the specified component covers the range from 2007 to 2014.

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
2007-2014	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 CLS63 AMG uses the 6411 bulb for the dome light across all listed model years, spanning 2007-2014.
The 6411 is classified as a festoon bulb, meaning it is cylindrical in form and mounts by pressing its end caps into spring-loaded clips rather than inserting into a socket.
The 6411 bulb has a 36mm length, which is a critical fitment factor, as festoon bulbs must match the specific span of the housing clips to seat correctly.
It uses an SV8.5 base, a designation that refers to the end cap style standard for festoon bulbs of this size category.
The 6411 operates at 12 volts and 5 watts, placing it in the low-wattage range typical of interior courtesy lighting.
The 6411 carries ANSI standardization, meaning its specifications are recognized across the United States and Canada, and equivalent bulbs from different manufacturers are expected to conform to the same physical and electrical parameters.
Because festoon bulbs are length-dependent for fitment, substituting a festoon bulb of a different length, even one with the same voltage and wattage, would result in an improper fit in the CLS63 AMG dome light housing.