BMW M5 2003 Bulb Size
Bulb size chart
This 2003 BMW M5 bulb size guide is designed to help you verify the correct bulb by lighting position, so you can replace only the lamp you need with confidence. Because the M5 uses different bulb types across the exterior and interior, checking the exact location matters before you buy.
Use this page as a quick reference for common fitment points on the 2003 BMW M5, including headlights, parking lights, turn signals, brake lights, license plate lights, and cabin bulbs. It is especially useful when you want to match the original bulb style and avoid ordering the wrong size.
Fitment can vary by trim, lighting package, market, and body style, so always compare the bulb in your car with the listing before purchasing. Some positions may use halogen bulbs while others use LED or xenon-related components, and aftermarket LED conversions may require different parts or may not fit the factory housing correctly. For the best results, check the installed bulb number, inspect the connector and base style, and confirm whether your replacement is meant to match original equipment or convert to a different lighting type. If the car has been modified, the bulb currently installed may not be the same as the factory specification.
FAQ
What bulb does the low beam headlight use on a 2003 BMW M5?
The low beam headlight bulb listed for the 2003 BMW M5 is D2S.
What is the rear turn signal bulb size for this M5?
The rear turn signal light bulb is 7507.
What bulb is used for the front turn signal and front side marker lights?
Both the front turn signal light and front side marker light use 3457A.
What bulb fits the brake light on a 2003 BMW M5?
The brake light bulb listed for this model is 7506R.
What bulb is used for the center high mount stop light?
The center high mount stop light bulb is 7506.
What bulb do I need for the back up reverse light?
The back up reverse light bulb listed for the 2003 BMW M5 is 7506.
Are the tail lights and rear side marker lights LED on this page?
Yes. The bulb chart lists the tail light bulb and the rear side marker light bulb as LED.
What bulb size is used for the license plate light?
The license plate light bulb is 6418.
What bulb fits the glove box light?
The glove box light bulb is 6418.
What bulb is used for the dome light and other interior courtesy-style lights?
Several interior positions use 6411 or 6428, including the dome light, trunk or cargo area light, vanity mirror light, and one courtesy light listing. Another courtesy light listing uses 64111, so check the exact position before ordering.
What bulb size is used for the reading light in the rear?
The rear reading light bulb is 64111.
What bulb do I need for the parking light and map light?
Both the parking light bulb and the map light bulb are listed as 64113.