Audi A3 Map Light Bulb Size

The Audi A3 map light requires a 194 or 12961 bulb size for proper illumination. The replacement chart covers vehicle production spanning 2014 to 2024.

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
2022-2024	194
2014-2021	12961

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

Other Locations

Additional Notes

The 194 and 12961 are both T10 miniature wedge bulbs, meaning they share the same physical wedge-style base form factor used in small interior lighting applications.
Despite sharing the T10 form factor, the two bulbs differ in wattage. The 194 operates at 3.78W, while the 12961 operates at 5W, reflecting a difference in power draw between the two.
The 12961 is designated by a Philips part number and specifies a W2.1x9.5d base, which is the standardized IEC designation for the T10 wedge base type.
The 194 is an ANSI-standardized bulb common in the United States and Canada, while the 12961 follows a manufacturer-specific numbering system, though both describe functionally similar lamp types.
Both bulb types operate at 12 volts, consistent with standard automotive electrical systems.
The Audi A3 uses the 194 bulb for the map light in the 2022-2024 model years.
The 12961 bulb is specified for the map light across the 2014-2021 model years, making it the longer-running fitment across the A3 generation covered by these specifications.
Because the 194 and 12961 differ in wattage despite sharing the T10 form factor, substituting one for the other across model year boundaries carries a risk of mismatched power draw relative to the original circuit design.