The Mercedes-Benz E350 high beam and low beam headlight bulbs utilize H7, D1S, and D2S sizes depending on configuration and model generation. The replacement chart covers 2006 through 2016 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 H7 is a single-filament halogen bulb rated at 12V and 55W, fitted with a PX26d base. It carries ECE certification for use across Europe and worldwide, and is also approved for use in the United States and Japan.
The H7 bulb is the most frequently specified type across the Mercedes-Benz E350 headlight data, appearing in both high beam and low beam positions across the 2006-2016 model years, either as the sole option or alongside an HID alternative.
The D1S is an HID xenon discharge bulb rated at 85V and 35W. It uses a PK32d-2 base and incorporates an integral ignitor within the bulb itself, making it designed specifically for projector-type headlight housings.
The D2S is also an HID xenon discharge bulb rated at 85V and 35W, but it uses a P32d-2 base and requires a separate, external ignitor rather than a built-in one. This distinction makes the D1S and D2S electrically and physically incompatible with each other despite sharing the same wattage rating.
For the 2008-2013 E350, both the D1S and H7 are listed for the same model year in both high beam and low beam positions, reflecting two distinct factory headlight configurations: HID Headlamps and Halogen Capsule Headlamps. The correct bulb depends on which headlight system the vehicle was built with.
The 2006-2007 low beam position is the only location in these specifications where the D2S appears. The high beam for those same years uses the H7, meaning the two headlight positions on those vehicles use bulbs from different technology types.
For the 2014-2016 E350, the low beam H7 fitment is specifically conditioned on the absence of a Xenon headlight and the absence of the Intelligent Light System (ILS), indicating that vehicles equipped with either of those systems use a different bulb not covered by these specifications.
Because the D1S includes an integral ignitor and the D2S does not, substituting one for the other is not a straightforward swap, even though both operate at 85V and 35W. The ignitor requirement represents a fundamental wiring and housing compatibility difference between the two bulb types.