The Mercedes-Benz CL63 AMG uses H11 and H7 bulbs for high beam headlights, while low beam headlights require D1S and D2S bulb sizes. The replacement chart covers 2008 to 2014 production 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 H11 and H7 bulbs specified for the high beam positions on the Mercedes-Benz CL63 AMG are both single-filament halogen types operating at 12V and 55W, though they use different bases: PGJ19-2 for the H11 and PX26d for the H7. These two types are not interchangeable with each other despite sharing identical voltage and wattage ratings.
The high beam position on the CL63 AMG uses the H11 bulb for 2011-2014 model years and the H7 bulb for 2008-2010, reflecting a change in fitment across the production run.
The low beam position across all listed years relies on HID (xenon) discharge technology rather than halogen. Both D1S and D2S bulbs operate at 85V and 35W and are designed for projector-type housings, but they are not interchangeable due to differing base configurations and ignitor arrangements.
The D1S bulb, specified for the low beam on the CL63 AMG for 2010-2014, incorporates an integral ignitor within the bulb itself. The D2S, used for 2008-2009, requires a separate external ignitor mounted within the housing.
Because the D1S and D2S differ in ignitor placement, substituting one for the other is not a direct swap and depends on whether the housing is equipped with an external ignitor.
Both D-series HID bulbs carry ECE certification, meaning they meet European and international lighting standards. The H11 and H7 halogen types also carry ECE certification and hold additional approval in the United States, with the H7 further approved in Japan.
The significantly higher operating voltage of the HID low beam bulbs (85V) compared to the halogen high beam bulbs (12V) reflects the fundamental difference in how discharge and filament-based lamps generate light, and it underscores why the two categories require entirely separate electrical circuits.