2017 BMW X3 bulb fitment varies by headlight equipment. Low-beam and high-beam applications use either D1S or LED, so identify the installed headlight type before ordering. LED headlights use LED lighting for both beams, while D1S systems use D1S bulbs for both low and high beam.
- Fog lights, center stop light, license plate lights, rear side markers, and tail lights use LED units.
- With halogen headlights, front turn signals use 7507, daytime running lights use 7440, and parking lights may use 2825 or 98.
- With LED headlights, front turn signals, daytime running lights, and parking lights use LED units.
- Brake light fitment depends on adaptive lighting: 64136 with adaptive lighting or 7506R without it.
- Rear turn signals use 7506, reverse lights use 921, and the courtesy light uses 6418.
- Interior fitment includes 2825 or 98 for the glove box and 6411 or 6428 for the vanity lights.