Audi A6 Map Light Bulb Size

The Audi A6 map light utilizes specific bulb sizes 6411 and 12961 for interior illumination components. Available data for the specified lighting equipment covers the range from 2012 to 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)
2012-2014	6411 (Front)
2012-2014	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 rated at 12V and 5W, with a 36mm length and an SV8.5 base. The SV8.5 base designation refers to a cylindrical cap-style fitting where the bulb is held in place by spring-loaded contacts at each end.
The 12961 is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, also rated at 12V and 5W. The wedge base type relies on the bulb's glass envelope and wire leads to form a friction fit within the socket, without a separate metal base cap.
Both the 6411 and 12961 share the same 12V, 5W electrical rating, yet they use entirely different base types and are not interchangeable with each other.
In the Audi A6, the front map light position uses the 6411 festoon bulb across the 2012-2014 and 2016 model years covered in the specifications.
The rear map light position in the Audi A6 uses the 12961 T10 wedge bulb across those same model years.
The 2016 Audi A6 entries carry a production cutoff of 5/30/2016, indicating that these bulb fitments apply only to vehicles produced up to that date within the 2016 model year.
The front and rear map light positions in the Audi A6 require different bulb types, making it necessary to confirm the specific position before selecting a replacement.