Audi S8 Turn Signal Bulb Size
The Audi S8 turn signal requires a bulb size of 921 for the front and rear lighting components. Data for the specified vehicle covers the range from 2007 to 2009.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Inner Turn Signal
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2001-2003 | 2357NA | P21/5W | Check Price |
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 |
|---|---|---|---|
| 2009 | 12188 | 12188 | Check Price |
| 2007-2008 | 12180 | 12180 | Check Price |
| 2003 | 921 | W16W | Check Price |
| 1157NA (To VIN 4D-3-004 999) | P21/5W | Check Price | |
| 2001-2002 | 1157NA | P21/5W | Check Price |
Rear Turn Signal
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2001-2003 | 1156 | P21W | Check Price |
Turn Signal
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2007-2009 | 921 (Silver) | W16W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 26.9W/8W. | 2357NA | Check Price |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W | Check Price |
| Philips part number. Halogen bulb, specialty application. 12V. | 12188 | Check Price |
| Philips part number. Halogen bulb, specialty application. 12V. | 12180 | Check Price |
| ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W. | 921 | Check Price |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 21W/5W. | 1157NA | Check Price |
| 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 |