Mercedes-Benz CLK63 AMG Dome Light Bulb Size

The Mercedes-Benz CLK63 AMG dome light requires a 6411 bulb size for proper installation within the interior overhead lighting fixture. Data for the specific bulb requirements covers the 2007 to 2008 range.

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
2007-2008	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 6411 is the dome light bulb size for the Mercedes-Benz CLK63 AMG across the 2007-2008 model years.
The 6411 bulb follows the ANSI standard, which governs bulb specifications in the United States and Canada.
It is a festoon-type bulb, meaning it is cylindrical in shape and mounts by pressing its end caps into spring-loaded holders rather than using a screw or bayonet base.
The 6411 has a 36mm length, which is a critical fitment factor, as festoon bulbs must match the exact span of the housing's contact points.
The bulb uses an SV8.5 base, a designation that refers to the end-cap style and the 8.5mm width of those caps.
It operates at 12 volts and 5 watts, consistent with standard low-power interior lighting in passenger vehicles.
Because festoon bulbs are sized by length, substituting a festoon bulb of a different length, even one sharing the same voltage and wattage, would result in an improper fit in the CLK63 AMG dome housing.