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 | Bulb Size |
|---|---|
| 2001-2003 | 2357NA |
Front Turn Signal
| Years | Bulb Size |
|---|---|
| 2009 | 12188 |
| 2007-2008 | 12180 |
| 2003 | 921 |
| 1157NA (To VIN 4D-3-004 999) | |
| 2001-2002 | 1157NA |
Rear Turn Signal
| Years | Bulb Size |
|---|---|
| 2001-2003 | P21W |
Turn Signal
| Years | Bulb Size |
|---|---|
| 2007-2009 | 921 (Silver) |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 26.9W/8W. | 2357NA |
| Philips part number. Halogen bulb, specialty application. 12V. | 12188 |
| Philips part number. Halogen bulb, specialty application. 12V. | 12180 |
| ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W. | 921 |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 21W/5W. | 1157NA |
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |