Audi TT Tail Light Bulb Size
The Audi TT tail light utilizes P21W and P21/5W bulb sizes for the rear lighting components. Data for the specified vehicle covers the range from 2000 to 2009.
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 |
|---|---|
| 2008-2015 | P21W |
| 2000-2006 | P21/5W |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W. | P21W |
| ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W. | P21/5W |