BMW X3 2018 Bulb Size
Bulb size chart
This 2018 BMW X3 bulb size page is designed to help you verify the correct bulb by lighting position, so you can match the right replacement to the right lamp on your vehicle. Whether you are checking the front headlights, rear brake lights, interior lamps, or cargo area lighting, the goal is to make fitment easier and reduce guesswork before you buy.
The 2018 BMW X3 uses LED lighting for many exterior and interior positions, but some signals and reverse lights still use specific bulb types. Because trim level, lighting package, market, and body style can affect the exact setup, it is important to confirm the bulb location on your own X3 before ordering replacements.
For the best fit, compare the bulb position on the page with the lamp actually installed on your vehicle, especially if your X3 has a premium lighting package or was built for a different market. Some versions use LED assemblies where others may differ, and aftermarket LED conversions can change the bulb type or connector style. If you are replacing a bulb, check the old bulb before purchase whenever possible, since the same model year can have different fitment for halogen, LED, or adaptive lighting configurations. This is especially useful for turn signals, brake lights, and reverse lights, where the listed bulb type may vary by trim or option package.
FAQ
Does the 2018 BMW X3 use LED bulbs in most positions?
Yes. On this model year, many lighting positions are listed as LED, including the headlights, fog lights, daytime running lights, tail lights, license plate lights, and several interior lamps.
Why should I verify bulb size by lighting position instead of only by model year?
Because the 2018 BMW X3 can vary by trim, lighting package, market, and body style. Checking by lighting position helps you match the correct bulb to the exact lamp you are replacing.
What bulb type is used for the front turn signal on the 2018 BMW X3?
The front turn signal bulb is listed as 5200 for this vehicle.
What bulb type is used for the rear turn signal on the 2018 BMW X3?
The rear turn signal bulb is listed as 7506.
What is the brake light bulb for a 2018 BMW X3 without adaptive lighting?
For models without adaptive lighting, the brake light bulb is listed as 7506R.
What is the brake light bulb for a 2018 BMW X3 with adaptive lighting?
For models with adaptive lighting, the brake light bulb is listed as 64136.
What bulb is used for the reverse light on the 2018 BMW X3?
The back up reverse light bulb is listed as 64136.
Are the headlights on the 2018 BMW X3 replaceable as simple bulbs?
The page lists the headlight high beam and low beam as LED, so the setup is not the same as a basic halogen bulb in many cases. Always confirm the exact headlamp configuration before replacing anything.
Do interior lights on the 2018 BMW X3 also use LEDs?
Yes. The page lists LED for several interior positions, including the dome light, map light, interior door light, trunk or cargo area light, and stepwell light.
Can I use aftermarket LED bulbs in place of the original bulbs?
Sometimes, but fitment and function can vary. Aftermarket LED conversions may need the correct connector, polarity, or resistor setup, and they may not behave the same as the factory lighting.
What should I check before buying replacement bulbs for my 2018 BMW X3?
Check the installed bulb type, the lamp position, and whether your vehicle has adaptive lighting or a specific trim package. Matching the existing bulb is the safest way to avoid ordering the wrong part.
Are the license plate lights and side marker lights LED on this X3?
Yes. The page lists both the license plate light and the front side marker light as LED for the 2018 BMW X3.