The BMW 750Li high beam headlight uses H7 or D1S bulb sizes, while the low beam headlight requires a D1S bulb size. The replacement chart covers 2006 through 2015 model 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 D1S is the most frequently specified bulb across the BMW 750Li headlight data, appearing in both high beam and low beam positions across the 2006-2015 model range. It is a high-intensity discharge xenon bulb operating at 85V and 35W, fitted with a PK32d-2 base and an integral ignitor, and is designed specifically for projector-type housings.
The H7 is the second bulb type present in the specifications. It is a single-filament halogen bulb rated at 12V and 55W, using a PX26d base. It carries ECE certification and is also approved for use in the United States and Japan.
The low beam position on the BMW 750Li uses the D1S exclusively across all listed years from 2006-2015, with no halogen alternative specified for that position.
The high beam position on the BMW 750Li (2014-2015) lists both the H7 and the D1S, where the D1S fitment is conditional on the vehicle being equipped with HID headlamps. These two bulb types are not interchangeable, as they differ in operating voltage, wattage, base type, and ignition method.
The H7 and D1S operate on fundamentally different electrical and optical principles. The H7 uses a tungsten filament heated by current, while the D1S sustains an arc discharge between electrodes in a xenon gas-filled quartz capsule, requiring the high-voltage ignitor that is built into the bulb itself.
For the 2013 high beam position, only the D1S with HID headlamps is listed, whereas the 2009 high beam position lists both the D1S and the H7 without a conditional HID notation on the D1S entry, indicating a dual-fitment model year.
Because the D1S requires a projector-type housing, substituting an H7 or any other halogen bulb into a housing designed for the D1S would be incompatible with the optical system of that housing.
The PK32d-2 base of the D1S and the PX26d base of the H7 are physically distinct, which prevents direct mechanical substitution between the two bulb types regardless of any electrical adaptation.