BMW M3 2008 Bulb Size
Bulb size chart
This 2008 BMW M3 bulb guide helps you verify the correct bulb size by lighting position, so you can replace the right part the first time. Because BMW used different lighting setups by body style and market, it is important to match the bulb to the exact lamp location before ordering.
Use this page as a quick reference for exterior and interior bulbs on the 2008 BMW M3, including headlights, tail lights, turn signals, reverse lights, and cabin lights. The listed fitments are organized to make it easier to compare coupe and sedan applications where the available bulb sizes can differ.
Fitment can vary with trim, lighting package, body style, and regional equipment, so always confirm the bulb in the car before buying replacements. Some positions may use halogen-style bulbs, while others may be factory LED or HID-based, and aftermarket LED conversions can change the required bulb type or trigger fitment issues. If you are upgrading from halogen to LED, check clearance, polarity, and any warning-canceling requirements. The safest approach is to inspect the installed bulb, compare it with the listing for your exact lamp position, and verify whether your M3 is a coupe or sedan before purchase.
FAQ
What bulb does the 2008 BMW M3 use for the low beam and high beam headlights?
The listed headlight bulb for both high beam and low beam is D1S. This applies to the headlight setup shown for the 2008 BMW M3 on this page.
What is the rear turn signal bulb for the 2008 BMW M3 coupe?
For the coupe, the rear turn signal bulb is 7507. Be sure to use the coupe listing, since the sedan uses a different rear turn signal bulb.
What rear turn signal bulb does the sedan use?
The sedan rear turn signal bulb is 7506. This is one of the clearest examples of why body style matters on the 2008 BMW M3.
What bulb fits the tail light on this M3?
The tail light bulb listing is 921 and 7506R. Check the specific lamp position before ordering, because the page includes more than one bulb option for that location.
What bulb is used for the reverse light?
The back up reverse light bulb is 921. This is the listed fitment for the 2008 BMW M3 reverse lamp position.
What bulb fits the front fog lights?
The front fog light bulb listing is H11 LED or H16 LED. Which one applies can depend on the exact lamp setup, so verify the installed bulb before replacing it.
What bulb is used for the license plate light?
The license plate light bulb is 6418. This same bulb number also appears in other small exterior and interior positions on the page.
What bulb fits the glove box light?
The glove box light bulb is 6418. If your old bulb is still readable, compare it to the installed part before buying a replacement.
What are the dome light and map light bulb sizes?
Both the dome light bulb and the map light bulb are listed as 6486X. These interior bulbs are shared across those two positions on the 2008 BMW M3 page.
Does the 2008 BMW M3 use the same brake light bulb in every body style?
No. The sedan without adaptive lighting uses 7506R for the brake light, while the coupe with adaptive lighting uses 64136. Always match the bulb to the exact body style and equipment.
What bulb is used for the center high mount stop light?
The center high mount stop light bulb is listed as LED. Because this position is already shown as LED, it is especially important to confirm the exact assembly before replacing parts.
Why does this page show multiple bulb options for some interior lights?
Some interior positions can have more than one compare-to-original option, such as 2825, 98, 2827, or 6411, 6428 depending on the lamp location. The page groups these by position so you can match the correct bulb more easily.