2023 Audi S4

Programming Guide for 2023 Audi S4 Keyless Entry Smart Key Remote Fob

Important Notice: The 2023 Audi S4 does not support onboard programming for smart key remote fobs. Programming must be carried out using Audi-specific diagnostic tools by a qualified automotive professional.

Programming Procedure:

  • Step 1: Arrange service with a certified automotive technician or authorized provider who is equipped with the appropriate diagnostic tools to program Audi smart key systems.
  • Step 2: If your vehicle is operational, driving it to the service provider’s location is often more affordable than using a mobile service.
  • Step 3: Ensure that the technician has experience working with Audi vehicles, especially smart key and immobilizer systems, to guarantee proper configuration and pairing.
  • Step 4: Bring all smart key fobs you intend to use with the vehicle. Any remotes not present during programming may be removed from the system.
  • Step 5: The technician will connect specialized diagnostic equipment to your vehicle through the OBD-II port to access the vehicle's security system.
  • Step 6: The new remote fob will be registered through the diagnostic interface, syncing it with the vehicle’s central locking, ignition, and anti-theft systems.
  • Step 7: Each function—locking, unlocking, trunk release, and push-to-start—will be tested to confirm successful pairing of the smart key.
  • Step 8: If any functionality fails, the technician will perform troubleshooting and reprogramming if necessary to ensure full compatibility.
  • Step 9: Once all remotes are programmed and confirmed operational, the system will exit programming mode.

Additional Considerations:

  • Proof of Ownership: If no working keys are available, you may be required to present the vehicle’s registration or title.
  • Key Limit: The vehicle may have a limit on how many remotes it can store—typically up to four.
  • Remote Type: Always use remote fobs designed specifically for the 2023 Audi S4 to avoid compatibility issues.
  • Session Efficiency: Reprogram all desired remotes in a single session to avoid additional service visits.