Mercedes-Benz C32 AMG Map Light Bulb Size

The Mercedes-Benz C32 AMG map light requires 6411 and 12961 bulb sizes for the interior lighting system. Data for the specified components covers the range from 2002 through 2004.

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
2003-2004	6411
2002	12961

Bulb Specifications

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

Other Locations

Additional Notes

The Mercedes-Benz C32 AMG uses two distinct bulb types for the map light across its production years: the 6411 and the 12961.
The 6411 is an ANSI-standardized festoon bulb rated at 12V and 5W, with a 36mm length and an SV8.5 base.
The SV8.5 base on the 6411 is a cylindrical festoon-style fitting, where the bulb makes contact at both ends rather than through a socket pin or wedge.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, also rated at 12V and 5W, with a W2.1x9.5d base.
Despite sharing the same voltage and wattage ratings, the 6411 and 12961 are not interchangeable, as their base types and physical forms are fundamentally different.
The Mercedes-Benz C32 AMG (2003-2004) uses the 6411 festoon bulb for the map light position.
The 2002 C32 AMG uses the 12961 wedge bulb, which represents a different fitment from the later model years.
Installing a festoon bulb in a socket designed for a wedge base, or vice versa, would result in an improper fit and non-functional lighting.