What is the low beam headlight bulb size for a 2020 BMW M240i?

The 2020 BMW M240i uses a N/A bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2020 BMW M240i?

The high beam bulb size for the 2020 BMW M240i is N/A.

Why are my 2020 BMW M240i headlights dim?

Dim headlights on a 2020 BMW M240i can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a N/A LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2020 BMW M240i fog light?

The 2020 BMW M240i uses a H8 bulb for the fog light position.

Is the 2020 BMW M240i single or dual beam?

The 2020 BMW M240i uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 2020 BMW M240i?

Yes, the 2020 BMW M240i comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a N/A LED conversion kit for the low beams.

Does the 2020 BMW M240i have fog lights?

Yes, the 2020 BMW M240i takes a H8 bulb for the fog light position.

Did the 2020 BMW M240i change headlight bulb sizes from the previous year?

Yes — the 2020 BMW M240i uses different bulb sizes than the 2019 model. The 2020 generation introduced this bulb configuration.

Is the 2020 BMW M240i the first or last year to use N/A bulbs?

The 2020 BMW M240i is the only year in the 2020 generation to use the N/A bulb for the low beam headlight.

How do I change the headlight on a 2020 BMW M240i?

Turn off the vehicle and open the hood. Locate the headlight assembly from behind, remove the dust cover or retaining clip, disconnect the wiring harness, twist the old N/A bulb counter-clockwise to remove it, then insert the new bulb and reassemble. Note: BMW vehicles use a CANbus system, so LED replacements may need an anti-flicker decoder. The whole process typically takes 10 to 30 minutes per side depending on accessibility.

Are LED headlights legal for a 2020 BMW M240i?

LED bulbs used off-road or in auxiliary lights are legal everywhere. For on-road headlight use, legality varies by state. Many states allow LED retrofits as long as the beam pattern meets DOT standards. For the best legal compliance, choose a DOT-approved N/A LED kit that is designed as a direct replacement and produces a proper cutoff pattern without excessive glare.

How much does it cost to replace 2020 BMW M240i headlights?

A pair of halogen N/A bulbs costs $15 to $40, while LED conversion kits run $25 to $60 per pair. If you have a shop do the work, expect an additional $20 to $50 in labor per bulb. Replacing them yourself at home saves the labor cost and usually takes under 30 minutes.

What is the difference between halogen and LED for a 2020 BMW M240i?

Halogen bulbs produce a warm yellow light (around 3200K), last 500 to 1000 hours, and draw more power. LED bulbs emit a brighter white light (5000-6000K), last 25,000+ hours, and use less energy. LED upgrades for the N/A position are available as direct plug-and-play replacements. Since the BMW uses CANbus monitoring, choose a CANbus-compatible LED kit to avoid dashboard errors.

The 2020 BMW M240i has a unique bulb configuration not shared with adjacent model years.

Fitment Guaranteed for 2020 BMW M240i

What Size Bulbs Does a 2020 BMW M240i Use?

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Installation Difficulty

Hard (Tight clearances)

Est. Replacement Cost

$15 - $40 (Halogen) / $30+ (LED)

What Lighting System Does the 2020 BMW M240i Have?

Lighting on the 2020 BMW M240i is managed by a total of 5 bulbs, covering everything from primary headlights to signal indicators. It features a standard lighting system powered by a dual-bulb halogen configuration using separate low beam and high beam bulbs for precise light distribution. This model belongs to the late years of the M240i's 2017-2020 production span. Note that BMW vehicles typically feature a CANbus electrical monitor that checks for specific bulb resistance.

LED Flicker Warning

This vehicle is known to use a CANbus system. Installing standard LEDs may cause flickering.

Use a CANbus decoder.

Can You Put LED Bulbs in a 2020 BMW M240i?

Upgrading to LED is one of the most effective ways to modernize your BMW's appearance and safety profile. We recommend starting your upgrade with the low beams, as they see the most use. Adding a matching LED kit later will complete the look and ensure consistent lighting performance. Because BMW utilizes a CANbus system, standard LED bulbs may cause "bulb out" errors on your dashboard. Always opt for "Error-Free" or CANbus-ready kits which include the necessary resistors. Don't forget the H8 fog lights; switching these to LED can dramatically improve your visibility in adverse weather.

2020 BMW M240i Bulb Size Chart

Position	Bulb Size	Shop
Fog Light	H8	Buy H8 →
Reverse Light	7440	Buy 7440 →
Turn Signal Rear	7440	Buy 7440 →
Dome Light	W5W	Buy W5W →
Map Light	W5W	Buy W5W →

How do the 2020 BMW M240i's bulbs compare to other years?

The 2020 BMW M240i changed bulb sizes from 2019. The previous model year used a different configuration.

This bulb configuration covers the 2020 model years. ← 2019

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Other M240i Years

2019 2018 2017