BMW i3 2021 Bulb Size
Bulb size chart
This 2021 BMW i3 bulb size page is designed to help you verify the correct lighting fitment by bulb position, so you can match the right bulb to the right lamp before you buy. Because the i3 uses LED lighting in many exterior and interior locations, checking the exact position matters more than relying on a single generic bulb list.
Use this guide as a quick reference for common service points such as the headlight low beam, high beam, fog light, brake light, turn signals, license plate lights, and interior lamps. It is especially useful when you want to confirm whether a light is LED from the factory or whether a specific area uses a replaceable bulb like the dome light.
Fitment can vary by trim, lighting package, market, and body style, so always compare this page with the bulb already installed in your vehicle before ordering replacements. The 2021 BMW i3 may use LED assemblies in many locations, which can mean the entire unit is serviced differently than a traditional halogen bulb setup. If you are considering an aftermarket conversion, make sure the bulb type, connector style, polarity, and heat management are compatible with the housing. For the most reliable result, remove the existing bulb or lamp module first and confirm the markings, since even similar-looking BMW lighting parts can differ by equipment level and region.
FAQ
What bulbs does the 2021 BMW i3 use for the headlights?
According to the bulb chart for this page, both the low beam and high beam headlight functions are LED on the 2021 BMW i3.
Are the fog lights on a 2021 BMW i3 replaceable bulbs?
The front fog light is listed as LED, so the vehicle may use an LED light source or LED module rather than a simple halogen bulb.
What is the brake light bulb type for the 2021 BMW i3?
The brake light is listed as LED on this model year.
What bulb fits the front turn signal on a 2021 BMW i3?
The front turn signal light is listed as LED for the 2021 BMW i3.
What bulb fits the rear turn signal on a 2021 BMW i3?
The rear turn signal light is also listed as LED.
What bulb is used for the license plate lights?
The license plate light bulb is listed as LED.
Does the 2021 BMW i3 use LED tail lights?
Yes. The tail light bulb position is listed as LED on this page.
What about the back up reverse light bulb?
The back up reverse light bulb is listed as LED.
Which interior lights are listed for the 2021 BMW i3?
The chart includes LED listings for the glove box light, trunk or cargo area light, map light, instrument panel light, center high mount stop light, and several other interior or cabin lighting positions.
Is the dome light on the 2021 BMW i3 an LED bulb?
The dome light is listed as 2825, which is the only non-LED bulb type shown in the available row list for this page.
Do trim levels or packages affect bulb fitment on this car?
Yes. Trim and lighting package can vary by market and body style, so the exact bulb or module may differ even within the same model year.
Should I check the old bulb before ordering a replacement?
Yes. Checking the installed bulb or lamp module is the best way to confirm fitment, especially on a vehicle like the 2021 BMW i3 that uses many LED lighting components.
Can I swap LED bulbs with aftermarket parts on the 2021 BMW i3?
Sometimes, but you need to verify compatibility carefully. LED conversions can be affected by connector shape, polarity, housing design, and whether the original light is a sealed LED assembly.
Why is it important to match the bulb position instead of just the model year?
Because the same year BMW i3 can have different lighting equipment by location and market, and the correct bulb type depends on where the light is used, not just the year alone.