Audi A3 Sportback e-tron Map Light Bulb Size

The Audi A3 Sportback e-tron map light requires a bulb size of 12961 for the interior lighting system. Data for the specific component covers the range from 2016 to 2018.

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
2016-2018	12961

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

Other Locations

Additional Notes

The Audi A3 Sportback e-tron uses the 12961 bulb for the map light position across the 2016-2018 model years.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, operating at 12 volts and rated at 5 watts.
The T10 designation refers to the bulb's tubular shape, with the number indicating a width of 10 millimeters.
The W2.1x9.5d base type is a wedge-style connector, meaning the bulb is held in place by the socket's tension rather than by a bayonet or screw mechanism.
The W2.1x9.5d base specification is standardized, so fitment depends on both the base type and the physical size of the bulb body fitting within the housing.
At 5 watts on a 12-volt circuit, the 12961 draws approximately 0.42 amperes, which is typical for low-load interior lighting applications such as map lights.