Audi Q7 Dome Light Bulb Size

The Audi Q7 dome light requires 6411 and 12961 bulb sizes for the interior lighting system. Data for the specified components spans the period from 2007 through 2015.

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
2010-2015	6411
2007-2009	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 Audi Q7 dome light uses two distinct bulb types across its model years: the 6411 festoon bulb for 2010-2015 and the 12961 miniature wedge bulb for 2007-2009.
The 6411 is an ANSI-standardized bulb used across the United States and Canada, making it widely available through general automotive retail channels.
The 6411 is a festoon-style bulb, meaning it is cylindrical and mounts by pressing its end caps into spring clips rather than inserting into a socket.
The 6411 measures 36mm in length and uses an SV8.5 base, which is the standard base designation for festoon bulbs of that size.
The 12961 is a Philips part number designation for a T10 miniature wedge bulb, which uses a W2.1x9.5d base and inserts directly into a wedge-style socket.
Both the 6411 and the 12961 operate at 12 volts and 5 watts, placing them in the same power class despite their different physical forms.
Because the 6411 and 12961 use different base types, festoon and wedge respectively, they are not interchangeable with each other regardless of their matching voltage and wattage ratings.
The Audi Q7 (2010-2015) requires the festoon-format 6411, while the 2007-2009 model years require the wedge-format 12961, reflecting a change in socket design between those production periods.