2017 Audi Q3 headlight fitment varies by factory headlight configuration. The low beam uses either a D5S bulb or an LED assembly, while the high beam is also listed as either D5S or LED. Confirm whether the vehicle has HID/D5S headlights or LED headlights before ordering, since these systems are not interchangeable.
- Fog lights use 921 bulbs.
- Front turn signals use 64132 with HID headlights and LED with LED headlights.
- Reverse lights use 921 bulbs.
- Brake, center stop, cornering, daytime running, parking, side-marker, tail, rear turn-signal, license-plate, step, and vanity lighting are listed as LED.
- Interior, map, reading, glove-box, and trunk lights may use 2825 or 98 bulbs.
Check the existing lamp and vehicle equipment before replacing a bulb, particularly for the headlights and front turn signals. LED-listed applications may be integrated assemblies rather than replaceable bulb sockets.