Mercedes-Benz ML63 AMG Map Light Bulb Size

The Mercedes-Benz ML63 AMG map light utilizes bulb size 12961 or 6411 depending on the specific production requirements for the vehicle. Data for the internal lighting components covers the range from 2007 to 2015.

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
2012-2015	12961 (Rear)
2008-2011	12961
2007	6411

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961
ANSI standard (US & Canada). Festoon bulb, 36mm length, SV8.5 base. 12V, 5W.	6411

Other Locations

Additional Notes

The Mercedes-Benz ML63 AMG uses two distinct map light bulb types across its production years, with the 12961 appearing in 2008-2015 models and the 6411 appearing in the 2007 model.
The 12961 is a Philips part number designation for a T10 miniature wedge bulb. It uses a W2.1x9.5d base and operates at 12V with a 5W output.
The 6411 follows the ANSI standard used in the US and Canada. It is a festoon-style bulb with a 36mm length, an SV8.5 base, and identical 12V, 5W electrical ratings to the 12961.
Despite sharing the same voltage and wattage, the 12961 and 6411 are not interchangeable. The wedge base of the T10 and the festoon SV8.5 base are physically incompatible socket types.
From 2012-2015, the ML63 AMG specifications designate the 12961 bulb specifically for the rear map light position, indicating a multi-zone interior lighting arrangement in those model years.
The 2008-2011 model years list the 12961 without a positional qualifier, whereas the 2012-2015 entries carry an explicit rear designation, reflecting a difference in how fitment positions were documented across those two periods.
The T10 wedge format of the 12961 is among the most widely used miniature bulb types in automotive interior applications, which generally supports broad aftermarket availability for that fitment.
The SV8.5 base on the 6411 festoon bulb is a standard contact type for cylindrical festoon lamps, where the bulb is held in place by spring-loaded end caps rather than a socket slot.