Audi S7 Map Light Bulb Size

The Audi S7 map light requires bulb sizes 6411 and 12961 for proper installation within the interior overhead housing. Data for the specific bulb sizes covers the range from 2013 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)
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 bulb type, meaning its specifications are governed by a North American industry standard applicable in both the US and Canada.
The 6411 is a festoon-style bulb, which is a cylindrical lamp that mounts by pressing its end caps into spring-loaded clips rather than inserting into a socket.
The 6411 measures 36mm in length and uses an SV8.5 base, operating at 12V and 5W.
The 12961 is a Philips part number designation for a miniature wedge bulb in the T10 form factor, using a W2.1x9.5d base at 12V and 5W.
The T10 wedge base (W2.1x9.5d) on the 12961 is a friction-fit design that seats directly into a matching socket without a separate locking mechanism.
The Audi S7 uses two distinct bulb types for map lighting, with the 6411 festoon assigned to the front position and the 12961 wedge assigned to the rear position across the 2013-2016 model years.
The front and rear map light positions on the S7 are not interchangeable in bulb type, as the festoon and wedge formats use physically incompatible mounting systems.
The 2016 rear map light specification carries a date qualifier of "To 5/30/2016," indicating that the 12961 fitment applies only to vehicles produced up to that date within the model year.