Mercedes-Benz G65 AMG high beam and low beam headlight bulbs both use D1S size. Replacement chart covers 2016 to 2018 production years with bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The D1S bulb is the sole bulb type across all listed positions and model years for the Mercedes-Benz G65 AMG, covering both high beam and low beam headlight functions from 2016-2018.
D1S is a high-intensity discharge (HID) bulb standard, operating through an electrical arc between two tungsten electrodes within a quartz glass capsule filled with xenon gas and metal halide salts.
The "D" prefix in the D1S designation indicates the bulb belongs to the discharge family of automotive lighting, as opposed to halogen or LED categories.
The "1" in D1S refers to the first generation of the standardized HID projector bulb series, which uses an integrated igniter built directly into the bulb base.
The "S" suffix in D1S denotes a quartz glass envelope, distinguishing it from the D1R variant, which uses a coated glass envelope designed for reflector-type housings rather than projector-type housings.
D1S bulbs operate at a nominal voltage of 85 volts AC after ignition, requiring a ballast to convert the vehicle's 12-volt DC supply and to deliver the high-voltage pulse needed for initial arc ignition.
The shared D1S specification across both the high beam and low beam positions in the G65 AMG indicates the headlight system uses a single projector unit per side that controls beam pattern through a mechanical shutter rather than separate bulbs for each function.
D1S bulbs are not interchangeable with D2S, D3S, or D4S bulbs despite their similar appearance, as each generation differs in base configuration, igniter integration, and mercury content.