Audi A7 Back Up Light Bulb Size
The Audi A7 back up light bulb uses 921 and 12177 sizes for this model. The replacement chart covers 2012 to 2017 production years with corresponding bulb size specifications.
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
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 | 921 | W16W | Check Price |
| 2014-2015 | 12177 | 12177 | Check Price |
| 2012-2013 | 921 | W16W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W. | 921 | Check Price |
| Philips part number. Halogen bulb, specialty application. 12V. | 12177 | Check Price |