For the 2020 BMW X3, both the low-beam and high-beam headlights use H7 bulbs. The supplied fitment data does not indicate a separate bulb size by headlight type, so verify the existing headlamp assembly before ordering.
The fog lights use H8 LED bulbs, while the cornering lights use H7 LED bulbs. Other useful exterior lighting applications include:
- Front turn signal: 5200
- Daytime running light: 7440
- Parking light: 194
- Rear turn signal: 7506A
- Reverse light: 921
Brake light fitment depends on the lighting configuration: models with adaptive lighting use 64136, while models without adaptive lighting use 7506R. Interior vanity lights use 578 bulbs. Confirm whether the vehicle has adaptive lighting when selecting brake bulbs.