For the 2017 BMW i3, the low-beam headlights use integrated LED lighting, while the high-beam headlights use an H11 bulb. The supplied fitment data does not list a fog-light bulb for this model year.
Most other exterior lighting is LED, including the reverse, brake, center-stop, license-plate, parking, front and rear side-marker, tail, rear turn-signal, and trunk lights. The front turn signal uses a 64132 bulb.
For interior and convenience lighting, the step light, dome light, glove-box light, and map light are listed with 2825 or 98 bulb options. Instrument lighting is LED. Verify the existing bulb and socket before ordering where multiple options are listed.