Audi Q5 Sportback Turn Signal Bulb Size

Audi Q5 Sportback front turn signal replacement bulb uses 12174NA or 12174SV size specifications. The chart covers 2021 to 2024 production years with corresponding bulb size data.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Front Turn Signal

Years	Bulb Size
2023-2024	12174NA
2021	12174SV

Bulb Specifications

Description	Bulb Size
OEM part number. Natural amber glass variant. 12V.	12174NA
Philips SilverVision part number. Enhanced coating halogen bulb. 12V.	12174SV

Other Locations

Additional Notes

The 12174NA is an OEM part number designating a natural amber glass bulb rated at 12V. The amber coloring is built into the glass itself, which produces the legally required turn signal color without relying on a tinted lens or external filter.
The 12174SV is a Philips SilverVision part number designating an enhanced coating halogen bulb also rated at 12V. The SilverVision coating gives the bulb a silvered appearance when unlit, while still emitting the required amber light when energized.
The Audi Q5 Sportback front turn signal uses the 12174NA for the 2023-2024 model years and the 12174SV for the 2021 model year. These are two distinct part numbers and are not listed as interchangeable within these specifications.
Both the 12174NA and 12174SV share the same 12V operating voltage, which reflects the standard electrical system voltage found across most passenger vehicles. Despite this shared voltage rating, the two bulbs differ in their glass treatment and manufacturer classification.