Porsche Cayenne high beam headlight bulbs utilize H7 size, while low beam headlight bulbs use D3S, H7, or D1S sizes depending on model generation. The replacement chart covers vehicle production years spanning 2003 to 2018 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.
ECE standard (Europe & worldwide). Mercury-free HID (xenon) discharge bulb with PK32d-5 base and integral ignitor, for projector-type housings. 42V, 35W.
The H7 bulb is the most widely specified type across the Porsche Cayenne headlight data, appearing in both high beam and low beam positions across multiple model years. It is a single-filament halogen bulb rated at 12V and 55W, fitted with a PX26d base, and built to ECE standards with approval also recognized in the United States and Japan.
The Porsche Cayenne (2003-2018) uses the H7 exclusively for the high beam headlight across all listed model years, regardless of whether the vehicle is equipped with halogen or HID low beam headlamps.
For the 2015-2017 high beam position, the H7 fitment is specifically noted as applying to vehicles with HID headlamps, indicating that HID-equipped Cayennes of those years still rely on a conventional halogen bulb for the high beam function.
The low beam headlight specifications reflect a split between two distinct HID bulb types across different production periods. The D1S was specified for HID-equipped vehicles from 2003-2014, while the D3S replaced it for 2015-2018 models.
The D1S and D3S are both HID xenon discharge bulbs rated at 35W and designed for projector-type housings with integral ignitors, but they differ significantly in operating voltage. The D1S operates at 85V, whereas the D3S operates at 42V. The two types are not interchangeable due to differences in base configuration and ignitor design.
The D3S is a mercury-free formulation, distinguishing it from the D1S, which does not carry that designation in the specifications. Both use the ECE standard and are intended for projector-type housings, but their base types differ: the D1S uses a PK32d-2 base and the D3S uses a PK32d-5 base.
From 2003-2014, the Cayenne low beam position offered two fitment options depending on headlamp type: H7 for halogen capsule headlamps and D1S for HID headlamps. Selecting the wrong bulb type for the installed headlamp assembly would result in an incompatible fitment.