Audi S6 Map Light Bulb Size

The Audi S6 map light utilizes 6411 and 12961 bulb sizes for the interior lighting system. Data for the specified components covers the range from 2013 through 2016.

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
2016	6411 (Front, To 5/30/2016)
2016	12961 (Rear, To 5/30/2016)
2013-2014	6411 (Front)
2013-2014	12961 (Rear)

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 6411 is an ANSI-standardized festoon bulb with a 36mm length, SV8.5 base, and a 12V, 5W rating. Festoon bulbs are cylindrical lamps that mount between two spring-loaded end caps rather than inserting into a socket.
The 12961 is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W. The wedge base design uses the bulb's glass envelope itself as the retention mechanism, with no separate metal base pins.
Both bulb types share the same 12V, 5W electrical rating, though they are not interchangeable due to their fundamentally different base types and physical forms.
In the Audi S6, the 6411 festoon bulb is assigned exclusively to the front map light position across the 2013-2016 model years covered in these specifications.
The 12961 T10 wedge bulb is assigned exclusively to the rear map light position across those same model years.
The 2016 Audi S6 carries a production date qualifier of "To 5/30/2016" for both the front and rear map light positions, indicating these bulb fitments apply only to vehicles produced up to that date within the model year.