The 2016-2019 Audi A4 B9 was sold with multiple lighting packages. The Audi A4 2016-2019 xenon projector headlight upgrade should be matched to the exact body, production date, original lamp technology, connectors and modules.
Quick compatibility answer
The product targets pre-facelift B9-era 2016-2019 applications, but fitment depends on A4 sedan versus Avant or regional long-wheelbase derivative, factory xenon/LED equipment, adaptive functions, connectors, modules and driving market.
Body and production checks
Confirm the chassis and body by VIN. B9 sedan, Avant and A4L variants can have regional equipment differences. Use production month and original lamp number rather than registration year alone.
Original lighting system
- Xenon/HID, standard LED or higher-spec adaptive package.
- Automatic leveling and washer equipment.
- Cornering and high-beam-assist functions.
- Ballast, igniter, LED driver and module numbers.
- Left-hand-drive or right-hand-drive beam pattern.
Xenon-to-xenon vs cross-technology upgrade
An assembly matching the original xenon system generally has lower electrical uncertainty. Converting from another lamp technology may require adapters, module changes, coding and additional testing. Confirm the supported original configuration in writing.
Coding and component transfer
Installation may require ballast or module transfer, coding or adaptation. Confirm which electronics are included and whether original adaptive functions remain.
Installation workflow
- Record existing lighting faults and beam aim.
- Photograph labels, plugs and modules.
- Test-fit both housings before final fastening.
- Test every lighting and leveling function.
- Complete coding if needed, rescan and align beams.
Facelift owners should use the 2020-2024 A4 guide. Compare choices in Best Audi A4 Headlight Upgrade Options.
Frequently asked questions
Will this fit my 2016-2019 Audi A4?
Fitment depends on exact body, production date, original lamp technology, connectors, modules, adaptive functions and market.
Which year models are compatible?
The product is listed for 2016-2019 Audi A4 applications. Confirm pre-facelift B9 shape and VIN build date.
Does coding require any changes?
It may. Ballast/module transfer, coding or adapters depend on the original xenon or LED configuration.
What modules are included?
Included ballasts, igniters, drivers and control units vary by product version. Request a written packing list.
How difficult is installation?
This is an intermediate-to-advanced retrofit requiring professional fitting, Audi diagnostics, function testing and beam alignment.
