BMW M4 2018 Bulb Size
Bulb size chart
This page for the 2018 BMW M4 helps you verify bulb sizes by lighting position, so you can match the correct replacement to the exact lamp on your car. Because BMW used LED lighting for many exterior and interior locations on this model, it is especially useful to confirm the position before ordering anything.
The 2018 M4 is a performance coupe, convertible, or Gran Coupe-style fitment depending on market and body style, and lighting equipment can vary with trim and package. Use this guide to narrow down the bulb type for each location, from headlights and fog lights to license plate, trunk, and cabin lights.
Fitment can differ by trim, lighting package, and market, so always compare the bulb position on your car with the chart before buying. Some 2018 BMW M4 lighting functions are LED assemblies rather than simple replaceable bulbs, while a few interior positions use standard bulb numbers such as 2825, 98 for the glove box light and 2723 for the vanity mirror light. If your car has been modified with aftermarket LED conversions, the installed parts may not match factory listings, so check the existing bulb or module first. When in doubt, remove the bulb and verify the number, connector style, and physical size before purchase to avoid fitment mistakes.
FAQ
What bulb size does the 2018 BMW M4 use for the headlights?
The headlight high beam and low beam on the 2018 BMW M4 are listed as LED. In many cases, that means the lighting is part of an LED headlamp assembly rather than a standard replaceable halogen bulb.
Are the fog lights on the 2018 BMW M4 replaceable bulbs?
The front fog light bulb position is listed as LED. Depending on the exact trim and lighting setup, this may be an LED module or integrated lamp rather than a conventional bulb.
What is the brake light bulb type for the 2018 BMW M4?
The brake light bulb is listed as LED. If you are replacing a brake light issue, confirm whether the problem is the LED light source, the housing, or a control module.
Does the 2018 BMW M4 use LED turn signal bulbs?
Yes. Both the front turn signal light bulb and rear turn signal light bulb are listed as LED for this model year.
What bulb do I need for the license plate lights on a 2018 BMW M4?
The license plate light bulb is listed as LED. This is helpful when checking for a failed lamp, but the exact service method can vary by body style and market.
What is used for the back up reverse light on the 2018 BMW M4?
The back up reverse light bulb is listed as LED. If the reverse light is out, verify whether the LED source is serviceable separately or built into the lamp assembly.
Are the daytime running lights on the 2018 BMW M4 LED?
Yes, the daytime running light bulb is listed as LED. On this car, DRLs are typically part of the front lighting design and may not use a standard bulb.
What bulb size is the glove box light on the 2018 BMW M4?
The glove box light bulb is listed as 2825, 98. That is one of the few interior positions on this page with a conventional bulb number instead of LED.
What bulb does the vanity mirror light use?
The vanity mirror light bulb is listed as 2723. If your mirror light is dim or out, check the bulb number and the socket style before ordering a replacement.
Can I swap the LED bulbs on my 2018 BMW M4 for aftermarket replacements?
Some positions may accept aftermarket LED upgrades, but many exterior lights on the 2018 BMW M4 are already LED and may be integrated into the housing. Check fitment carefully and make sure any replacement matches the original connector and function.
Why should I check my installed bulb before buying parts for a 2018 BMW M4?
BMW lighting can vary by trim, package, market, and body style, and prior repairs or aftermarket changes can alter what is installed. Checking the existing bulb or module is the safest way to confirm the correct replacement.
Do all 2018 BMW M4 models use the same bulb sizes?
Not always. Trim and lighting package differences can change the exact setup, so the bulb chart should be used as a guide and matched to the lighting position on the specific vehicle.