Audi TTS Quattro Daytime Running Light Bulb Size
The Audi TTS Quattro daytime running light requires a P21W bulb size for proper installation and function. Data for the specific lighting component covers the range from 2009 to 2010.
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 |
|---|---|
| 2009-2010 | P21W (With HID Headlamps) |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |