The Audi S7 side marker utilizes a 12961 bulb size for illumination purposes within the lighting assembly. Data for the specific component covers the range from 2013 to 2018.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Audi S7 uses the 12961 bulb for both front and rear side marker positions across all listed model years.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, rated at 12 volts and 5 watts.
T10 bulbs are among the most widely used miniature bulbs in automotive applications, commonly found in low-current positions such as side markers, courtesy lights, and instrument clusters.
The 12961 uses a W2.1x9.5d base, which is the standard wedge base type for T10 bulbs. The base retains the bulb by friction fit within the socket rather than by a bayonet or screw mechanism.
At 5 watts, the 12961 draws minimal current, consistent with its use in side marker positions that operate continuously alongside headlights or parking lights.
The front side marker on the Audi S7 uses the 12961 bulb for the 2013-2015 and 2017-2018 model years.
The rear side marker on the Audi S7 uses the 12961 bulb for the 2013-2018 model years.
Because both the front and rear side marker positions share the same bulb specification, a single bulb type services both locations on the vehicle.
The W2.1x9.5d base designation is standardized, meaning T10 wedge bulbs from various manufacturers sharing this base are generally interchangeable at the socket level, provided voltage and wattage ratings are also compatible.
Substituting bulbs with a higher wattage rating than the specified 5W in side marker sockets risks exceeding the thermal and electrical tolerances of the socket and surrounding housing.