The Mercedes-Benz ML55 AMG uses H7 and H1 bulbs for high beam headlights, while low beam headlights require H7, D2S, or D2R size bulbs. The replacement chart covers 2000 to 2003 model years 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 the most frequently specified type across the Mercedes-Benz ML55 AMG headlight data, appearing in both high beam and low beam positions for the 2002-2003 model years, as well as in the low beam halogen configuration for 2000-2001. It is a single-filament halogen bulb rated at 12V and 55W, built to ECE standards, and carries approval in the US and Japan. Its base type is PX26d.
The H1 bulb is specified for the high beam position on the 2000-2001 ML55 AMG. Like the H7, it is a single-filament halogen bulb rated at 12V and 55W under ECE standards, with US and Japan approval, but it uses a P14.5s base, which is physically distinct from the PX26d base of the H7 and the two are not interchangeable.
The low beam position on the Mercedes-Benz ML55 AMG accommodates two different bulb types depending on the headlamp system installed. Vehicles fitted with halogen capsule headlamps use the H7, while those fitted with HID headlamps use either the D2S or D2R, making headlamp system type a necessary factor before selecting a replacement bulb.
The D2S and D2R are both HID xenon discharge bulbs rated at 85V and 35W, operating at a significantly higher voltage than the 12V halogen types. Both require an external ignitor to function and are built to ECE standards.
Although the D2S and D2R share the same wattage and voltage ratings, they are not interchangeable. The D2S uses a P32d-2 base and is designed for projector-type housings, while the D2R uses a P32d-3 base and is intended for reflector-type housings. The ML55 AMG specifications show D2R for the 2000-2001 HID low beam and D2S for the 2002-2003 HID low beam, indicating a housing type difference between those model year groups.
The high beam circuit on the 2000-2001 ML55 AMG uses the H1 bulb, while the 2002-2003 model years use the H7 for the same position. These two bulb types share the same voltage and wattage ratings but have different base configurations, so a bulb from one generation's high beam application does not fit the other.
All four bulb types specified across the ML55 AMG headlight data conform to ECE standards, which are recognized across Europe and worldwide, and the halogen types additionally carry approval in the US and Japan.