The Mercedes-Benz SLK300 headlight bulb specifications include high beam sizes of D1S and H7, along with low beam options of D1S, H7, and D2S. The replacement chart covers 2009 to 2016 model years with corresponding bulb size data.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H7 is the most frequently specified bulb across these specifications, appearing in both high beam and low beam positions for the 2009-2011 model years, as well as the halogen headlamp variant of the 2016 model year. It is a single-filament halogen bulb operating at 12V and 55W, fitted with a PX26d base, and carries ECE approval with additional recognition in the US and Japan.
The D1S and D2S are both HID xenon discharge bulbs rated at 85V and 35W, designed for projector-type housings. Despite sharing the same wattage and voltage, they are not interchangeable. The D1S uses a PK32d-2 base and incorporates an integral ignitor, while the D2S uses a P32d-2 base and requires a separate external ignitor.
For the 2016 Mercedes-Benz SLK300, both the high beam and low beam positions accept either a D1S or an H7, depending on whether the vehicle is equipped with HID or halogen capsule headlamps. Selecting the correct bulb type requires confirming which headlamp system is installed on the specific vehicle.
In the 2009-2010 model years, the low beam position accommodates two distinct bulb types: the D2S for vehicles with HID headlamps and the H7 for those with halogen capsule headlamps. The high beam position for those same years is specified exclusively as H7, regardless of headlamp type.
The 2011 model year follows the same split-specification pattern as 2009-2010 for the low beam, listing both D2S and H7 depending on headlamp type. However, the high beam for 2011 is listed only as H7, with no HID variant noted for that position.
All three bulb types in these specifications conform to the ECE standard, which governs lighting equipment across Europe and much of the world. This classification is relevant to replacement sourcing, as ECE-rated bulbs carry specific photometric and construction requirements distinct from SAE-rated alternatives.