Audi S6 Dome Light Bulb Size

The Audi S6 dome light utilizes a 6411 bulb size for the interior lighting component. Data for the specified bulb covers the range from 1995 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
2013-2016	6411
2011	6411 (From VIN 4F-B-000 001)
2009-2010	6411
2007-2008	6411 (From VIN 4F-7-000 001)
1995	6411

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 36mm length, SV8.5 base. 12V, 5W.	6411

Other Locations

Additional Notes

The Audi S6 uses the 6411 bulb size across all listed model years for the dome light position.
The 6411 is an ANSI-standard bulb recognized in both the United States and Canada, meaning it conforms to a standardized specification rather than being a proprietary or regional-only part.
The 6411 is a festoon-style bulb, which is a cylindrical lamp that mounts by pressing its end caps into spring clips rather than inserting into a socket.
The 6411 bulb has a 36mm length, which is the span between its two end contacts and determines physical fit within the dome light housing.
It uses an SV8.5 base, a designation that refers to the festoon cap width of 8.5mm, which must match the spring clip spacing in the fixture.
The 6411 operates at 12 volts and 5 watts, consistent with standard automotive low-voltage interior lighting systems.
The 2008 and 2007 Audi S6 carry a VIN qualifier of "From VIN 4F-7-000 001," indicating the 6411 fitment applies only to vehicles at or above that production sequence.
The 2011 Audi S6 carries a separate VIN qualifier of "From VIN 4F-B-000 001," indicating the same type of mid-production fitment boundary applies to that model year as well.
The 2013-2016 model years share the 6411 specification without any VIN restrictions, indicating uniform fitment across all units in those years.
Because festoon bulbs of the same length and base type are often interchangeable, any substitute for the 6411 must match the 36mm length and SV8.5 base to seat correctly in the housing.