Below is a list of light bulb types used in 2015- BMW X1 lighting system, covering estate vehicles.
Headlight bulb: low beam - H7 / high beam - H7
Fog light bulb: H8
Front indicator/turn signal bulb: PY21W
Rear indicator/turn signal bulb: P21W
Tail light bulb: W5W
Brake light bulb: P21W
Back-up light bulb: P21W
Rear fog light bulb: P21W
Glove compartment light bulb: W5W