Audi A3 Sportback e-tron Turn Signal Bulb Size
Audi A3 Sportback e-tron front turn signal bulb size is P21W with 12174NA designation, while rear turn signal bulb size is 921 with 5008 designation. The replacement chart covers 2016 to 2018 production years with bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Turn Signal
If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2017-2018 | 1156 (With HID Headlamps) | P21W | Check Price |
| 2016 | 12174NA | 12174NA | Check Price |
Rear Turn Signal
If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2017-2018 | 921 | W16W | Check Price |
| 2016 | 5008 (With Halogen Capsule Headlamps) | 5008 | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W. | 1156 | Check Price |
| OEM part number. Natural amber glass variant. 12V. | 12174NA | Check Price |
| ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W. | 921 | Check Price |
| ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V. | 5008 | Check Price |