The Volkswagen Golf Alltrack high beam headlight uses H9, D3S, or H15 bulb sizes, while the low beam headlight requires H7 or D3S bulb sizes. The replacement chart covers 2017 to 2019 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.
ECE standard (Europe & worldwide). Mercury-free HID (xenon) discharge bulb with PK32d-5 base and integral ignitor, for projector-type housings. 42V, 35W.
The Volkswagen Golf Alltrack uses four distinct bulb types across its headlight system for the 2017-2019 model years: H9, H15, D3S, and H7, reflecting two separate headlamp technologies offered across those years.
The H7 is the most consistently specified bulb in the Golf Alltrack headlight data, appearing as the low beam bulb for halogen-equipped vehicles across all three model years covered. It is a single-filament halogen bulb operating at 12V and 55W, fitted with a PX26d base, and holds ECE approval as well as approval in the United States and Japan.
The D3S is a mercury-free HID (xenon) gas-discharge bulb rated at 42V and 35W, with a PK32d-5 base and an integral ignitor. It is specified for projector-type housings and serves as both the high beam and low beam source in HID-equipped 2017-2018 Golf Alltrack vehicles, meaning a single bulb type handles both functions in that configuration.
The H15 is a dual-filament halogen bulb with a PGJ23t-1 base, rated at 12V with a 55W high filament and a 15W low filament. It is specified as the high beam bulb for halogen-equipped 2017-2018 Golf Alltrack vehicles, where its lower-wattage filament typically serves a daytime running light function alongside the main high beam filament.
The 2019 Golf Alltrack with halogen headlamps uses an H9 for the high beam rather than the H15 found in the 2017-2018 halogen configuration. The H9 is a single-filament halogen bulb with a PGJ19-5 base, rated at 12V and 65W, and carries ECE approval as well as US approval.
The H9 and H7 share the same 12V operating voltage and are both single-filament halogen bulbs, but they use physically different bases, PGJ19-5 and PX26d respectively, making them non-interchangeable despite their similar electrical characteristics.
HID headlamp configurations on the 2017-2018 Golf Alltrack use the D3S for both high and low beam positions, while halogen configurations on those same years use the H15 for high beam and the H7 for low beam, meaning the two headlamp systems share no bulb types in common.
All four bulb types specified for the Golf Alltrack conform to ECE standards, which govern bulb performance and fitment across European and worldwide markets.