The Mercedes-Benz ML430 uses H1 bulbs for high beam headlights and H7 or D2R bulbs for low beam headlights, with the specific size depending on configuration. The replacement chart covers 1999 to 2001 model years and details bulb size specifications across the vehicle production range.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mercedes-Benz ML430 uses three bulb types across its headlight system: H1 for high beams, and either H7 or D2R for low beams, depending on the headlamp configuration.
The H1 and H7 are both single-filament halogen bulbs operating at 12V and 55W. Both follow the ECE standard and carry approval in the US and Japan. The H1 uses a P14.5s base, while the H7 uses a PX26d base, making the two types physically incompatible with each other despite sharing identical voltage and wattage ratings.
The D2R is a high-intensity discharge (HID) xenon bulb rated at 85V and 35W. It uses a P32d-3 base and is designed specifically for reflector-type headlamp housings. Unlike the halogen types, it requires an external ignitor to initiate the arc discharge that produces light.
For the 2000-2001 ML430, two distinct low beam configurations were available: halogen capsule headlamps using the H7 bulb, and HID headlamps using the D2R bulb. These two systems are not interchangeable, as they differ in base type, operating voltage, and ignition requirements.
The 1999 ML430 low beam position lists only the H7, with no HID variant specified for that model year.
The high beam position across all three model years (1999-2001) is standardized to the H1 bulb, with no alternative fitment listed.