Audi A7 Map Light Bulb Size

Additional Notes

• The 6411 is a festoon-type bulb measuring 36mm in length with an SV8.5 base, rated at 12V and 5W. It follows the ANSI standard used across the United States and Canada.
• The 12961 is a miniature wedge bulb in the T10 form factor, fitted with a W2.1x9.5d base and rated at 12V and 5W. It is designated by a Philips part number rather than an ANSI code.
• Both bulb types share the same voltage and wattage ratings of 12V and 5W, though they differ in physical form factor and base type, making them non-interchangeable with each other.
• The Audi A7 uses the 6411 bulb for the front map light position and the 12961 bulb for the rear map light position across the model years covered in these specifications.
• The SV8.5 base on the 6411 is a festoon-style contact base, where the bulb makes electrical contact at each end of its cylindrical body rather than through a plug-in socket.
• The W2.1x9.5d base on the 12961 is a wedge-type base, where the glass envelope itself forms the connection by wedging directly into the socket without a separate metal base.
• For the 2016 Audi A7, both the 6411 and 12961 map light bulbs carry a production cutoff of 5/30/2016, indicating that these fitments apply only to vehicles produced up to that date.
• The front and rear map light positions on the A7 require different bulb types, so the two positions are not served by a single universal part across any of the listed model years.
• The specifications cover the 2012-2014 model years without any noted production date restrictions, while the 2016 entries include an explicit date-based fitment boundary.