2015 BMW Z4 Bulb Sizes
Quick answer: the 2015 BMW Z4 uses D1S low and high beams and 921 brake lights.
2015 BMW Z4 bulb size chart
| Position | Bulb size (tap to shop) |
|---|---|
| Headlight Bulb High Beam and Low Beam | D1S |
| Back Up Reverse Light Bulb | 921 |
| Stepwell Light Bulb | 2825 |
| Brake Light Bulb(without adaptive lighting) | 921 |
Tap any bulb size to see it on Amazon. Trims and mid-year changes can differ, so pull the old bulb and match the number on its base before you order.
Which bulb should I buy?
- Just need it working again? Buy the standard halogen in the same size. It's cheap, it's legal everywhere, and it takes five minutes.
- Want to see better at night without messing with anything? Step up to a brighter halogen. Same plug, more light, no wiring.
- Want the white, modern look? Go LED. Great for fog, reverse, plate and interior lights. For headlights, LED bulbs in a housing built for halogen can throw glare, so aim them after you install and check your state's rules before running them on the street.
Our picks by bulb size
D1S (headlight high beam and low beam)
- Top pick: Torchbeam D1S HID bulbs
921 (back up reverse light, brake light)
- Halogen: Sylvania 921 Long Life (2 bulbs)
- LED: LASFIT 921 LED (pack of 2)
2825 (stepwell light)
- Halogen: Sylvania 194 SilverStar (2 bulbs)
- LED: LASFIT 194 LED (2 pcs)
For brake lights and turn signals, match the LED color to the lens: red behind a red lens, amber for turn signals.
While you're in there
- Cloudy headlights? New bulbs won't fix a yellowed lens. A replacement housing makes a bigger difference than any bulb: see BMW Z4 headlights at NTXGlow.
- Tail lights faded or cracked? BMW Z4 tail lights at NTXGlow.
Common questions
What size is the low beam headlight bulb on a 2015 BMW Z4?
D1S.
What size is the high beam headlight bulb on a 2015 BMW Z4?
D1S.
Can I put LED bulbs in a 2015 BMW Z4?
Most sizes on this vehicle have a plug-in LED version. Fog, license plate and interior lights are the easy wins. For headlights, aim them after you install and check your local laws first. Some trims of this vehicle use HID (D-series) headlight bulbs. Replace those with the same HID size, not an LED.
How do I make sure I'm buying the right size?
Pull the old bulb and read the number stamped on its base, or check the bulb chart in your owner's manual. Trims and mid-year changes can differ from any chart, including this one.
Other BMW Z4 years
2010 BMW Z4 bulb sizes · 2011 BMW Z4 bulb sizes · 2012 BMW Z4 bulb sizes · 2013 BMW Z4 bulb sizes · 2014 BMW Z4 bulb sizes · 2016 BMW Z4 bulb sizes
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