The Mercedes-Benz ML500 high beam headlight uses an H7 bulb size, while low beam headlights require either H7 or D2S bulb sizes depending on configuration. The replacement chart covers vehicle production years spanning 2002 to 2007 with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H7 bulb is a single-filament halogen type operating at 12 volts and 55 watts, fitted with a PX26d base. It carries ECE certification for use in Europe and worldwide markets, and is also approved for use in the United States and Japan.
The D2S is a high-intensity discharge xenon bulb rated at 85 volts and 35 watts, using a P32d-2 base. Unlike the H7, it requires an external ignitor to initiate and sustain the arc discharge that produces light.
The D2S is specified exclusively for projector-type housings. This housing requirement is a function of the bulb's light output characteristics, which demand a focused optical system to control beam distribution properly.
Across the 2002-2007 Mercedes-Benz ML500, the high beam headlight position uses the H7 bulb exclusively for all model years covered in the specifications.
The low beam headlight position on the 2002-2007 ML500 accommodates two distinct bulb types depending on the installed headlamp system. Vehicles equipped with halogen capsule headlamps use the H7, while those equipped with HID headlamps use the D2S.
Because the H7 and D2S operate on fundamentally different electrical and optical principles, the two bulb types are not interchangeable. The halogen and HID headlamp systems each require their respective bulb and supporting hardware.