BMW X1 2018 Bulb Size
Bulb size chart
This page covers bulb sizes for the 2018 BMW X1 and is organized by lighting position so you can quickly verify the correct bulb before you buy. Because BMW used different lighting setups across trims and markets, checking the exact location is the safest way to match the right replacement bulb.
On the 2018 X1, many exterior and interior lamps are LED, while some signals and utility lights still use replaceable bulb types. Use this guide to compare the bulb chart by function, such as low beam, turn signal, reverse light, or license plate light, and avoid mixing up similar-looking sockets or lamps.
Fitment can vary by trim package, headlight type, and market, so always confirm whether your X1 has halogen headlights or LED headlights before ordering. Some positions also change with options such as adaptive lighting, which affects certain brake light applications. If you are converting to aftermarket LED bulbs, make sure the bulb base, polarity, and CAN-bus compatibility are appropriate for the vehicle to reduce warning messages or flicker. The most reliable check is to inspect the installed bulb or housing before purchase, especially for exterior lights that may look similar but use different part numbers.
FAQ
Does the 2018 BMW X1 use the same bulb sizes on every trim?
No. Trim level, lighting package, and market can change the bulb setup on the 2018 BMW X1. The safest approach is to match the bulb by lighting position on this page rather than assuming every X1 uses the same parts.
How do I know if my X1 has halogen or LED headlights?
Look at the headlight housing and the original bulb chart for your vehicle. On this model, headlight-related fitment differs between halogen headlights and LED headlights, so identifying the installed setup first is important before ordering replacement bulbs.
What bulb is used for the front turn signal on the 2018 BMW X1?
The front turn signal bulb listed for this model is 7507. Always confirm the socket and installed bulb before buying, especially if the vehicle has been modified or fitted with aftermarket lighting.
What bulb is used for the rear turn signal on the 2018 BMW X1?
The rear turn signal bulb listed for this model is 7506. This is a separate fitment from the front signal, so do not assume both ends use the same bulb type.
What bulb fits the reverse light on the 2018 BMW X1?
The back up reverse light bulb listed for this model is 7506. If one side is out, it is often a good idea to replace both sides together so the light output stays even.
What brake light bulb does the 2018 BMW X1 use?
Brake light fitment depends on whether the vehicle has adaptive lighting. Without adaptive lighting, the listed brake light bulb is 7506R. With adaptive lighting, the listed brake light bulb is 64136.
Are the tail light bulbs the same on LED headlight and halogen headlight versions?
No. The tail light bulb listing differs by headlight type on this page. The version with LED headlights uses an LED tail light setup, while the version with halogen headlights lists 2825, 98.
What bulb is used for the license plate light on the 2018 BMW X1?
The license plate light bulb is listed as LED. Because this is an LED application, you usually replace the complete LED lamp or module rather than a standard replaceable incandescent bulb.
Which interior bulbs are listed for the 2018 BMW X1?
Interior positions on this page include vanity mirror light, dome light, map light, stepwell light, and interior door light. Several of these are listed as LED, while the interior door light is listed as 2825, 98.
Can I swap halogen bulbs for LED aftermarket bulbs on my X1?
Yes, but fitment is not always plug-and-play. Aftermarket LED conversions can create issues with beam pattern, warning lights, or polarity, so it is important to check the bulb base, electrical compatibility, and whether the housing is designed for LED use.
Why should I check the installed bulb before ordering replacements?
Because BMW used different bulb types across lighting positions and options, the installed bulb is the best confirmation of fitment. Checking the old bulb helps prevent ordering the wrong size, especially for similar-looking exterior bulbs like turn signals, reverse lights, and brake lights.
Does this page help with both exterior and interior bulb replacement?
Yes. This 2018 BMW X1 bulb guide is organized by lighting position, so it can help with exterior bulbs such as headlights, signals, brake lights, and license plate lights, as well as interior bulbs like dome, map, vanity mirror, and door lights.