Mercedes-Benz C63 AMG high beam headlight bulbs use H7 size while low beam headlight bulbs use H7 or D1S size depending on configuration. The replacement bulb size chart covers 2008 through 2019 vehicle production years.
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 prevalent type across these specifications, appearing in both the high beam and low beam positions of the Mercedes-Benz C63 AMG across all listed model years. It is a halogen bulb operating at 55 watts with a PX26d base, producing light from a single filament enclosed in a capsule filled with halogen gas.
The high beam headlight position uses the H7 bulb exclusively across all listed years, from 2008-2019, with no alternative fitment noted for that position.
For the low beam headlight position in 2016-2019, only the H7 bulb is listed. No HID variant is noted for those years.
For model years 2008-2014, the low beam headlight position carries a dual-fitment specification. Vehicles without HID headlamps use the H7 bulb, while vehicles equipped with HID headlamps use the D1S bulb instead.
The D1S is a high-intensity discharge bulb that operates through an electrical arc between two electrodes rather than a heated filament. It requires a compatible ballast and igniter already integrated into the HID headlamp assembly to function.
Because the D1S and H7 operate on fundamentally different electrical and optical principles, the two bulb types are not interchangeable. Installing an H7 into a socket designed for D1S, or vice versa, is not a compatible substitution.
The D1S bulb uses a factory-sealed design in which the bulb and igniter form a single unit, distinguishing it from later D-series variants such as the D3S, which omits the internal igniter.
The H7 bulb uses a two-pin PX26d base, which is a keyed connector. Physical installation into a socket designed for a different base type is not possible without modification.
The year 2015 does not appear in any position within these specifications for the C63 AMG.