Close or open windows/sunroof by holding the lock/unlock button.
: Always take a full backup or screenshot of the original long coding and adaptation values before changing a single digit.
Enables a horn chirp when locking or unlocking the vehicle, and adds an option to toggle this sound on/off through the MMI settings menu. 09 - Central Electrics Function: Adaptation Channel: Acknowledgement Signals ( Quittungstoene )
| Feature | Adaptation Channel | Value / Change | Notes | | :--- | :--- | :--- | :--- | | | (9)-Außenlicht_uebergreifend-Komfortbeleuchtung_mit_Nebellicht | Change to Active | Allows fogs instead of low beams for driveway lighting. | | Scandinavian DRLs (Rear tails always on) | (6)-Leuchte24SL HRA69-Lichtfunktion A 24 | Change to Daytime running light | Safer for snowy/foggy regions. | | Disable Seatbelt Chime (Driver) | (13)-Seat Belt Warning-Seat Belt Warning Response Driver | Change to No Belt | Legal warning: Do this at your own risk. | | Mirror Dip in Reverse | (23)-Spiegelverstellung-Rueckwaerts_einklappen | Change to Active | Requires memory mirrors. Passenger mirror dips when in R. | | 4-Way Hazard Flashers (Emergency Brake) | (66)-Aussenlicht_Blinker-Emergency_alert_blinken | Change to Active | Flashers activate under hard braking. | | Alarm Beep on Lock/Unlock | (1)-Akustische Rueckmeldung global-Akustische Rueckmeldung entriegeln | Change to Active | Adds chirp. Also adjust volume at channel (6)-Akustische Rueckmeldung global-Dauer der Akustischen Rueckmeldung vom Einfachhorn . | audi a4 b9 coding list
A advanced tool best suited for parameterization, flashing firmware, and complex modifications. Crucial Safety Rules
: Change from Version 1 to Version 2, 3, or 4 (Test to see your favorite layout) Lap Timer Activation
For cars with power-folding mirrors that currently require you to turn the physical switch inside the door panel. Close or open windows/sunroof by holding the lock/unlock
To modify your car's software, you need a hardware adapter that plugs into your OBD-II port (located under the dashboard by the driver's knees) and a software interface. The three most popular options for the B9 platform are:
Below is the most sought-after "Coding List" for the B9 platform, categorized for easy navigation. Each entry includes the , Path , and Action .
Enable managing a second phone via Bluetooth. Module : 17 (Instruments)
Enables auto-high beam on Premium Plus models.
: 44 (Steering Assistance) → Long Coding → Byte 2 → Activate Bit 7
Passenger mirror tilts down when in reverse (requires memory seat option). 2. Lighting Enhancements
Test each modification individually to ensure it works without causing errors. If you'd like to proceed with a specific mod, tell me: Which tool you are using (VCDS or OBDeleven)? What year is your A4? Do you have the Virtual Cockpit (digital dash)?
If your A4 B9 has a front-facing camera mounted on the windshield (used for Audi Pre-Sense) but does not have the driver assistance package, you can enable Lane Assist entirely through software. : Windshield-mounted high camera. Module : A5 (Front Sensors Driver Assistance System) Coding : Change "System_Mode_Lane_Assist" to "Activated". Module : 17 (Instruments)