Coding List Upd - Audi A4 B9

| Feature | Description | Module & Coding Path | | :--- | :--- | :--- | | | Allows you to lock the car from the outside via remote while the engine is idling (useful for warming up the car in winter). | 46 - Central Comfort: Long Coding > Byte 09 > Bit 07 (central_locking_system_lock_unlock_at_engine_running) = Activated | | Comfort Window Range | Extends the distance from which you can open/close windows using the remote. | 46 - Central Comfort: Long Coding > comfort_operation_range_limitation = Not Active | | Extended Key Fob Range | Significantly increases key fob range using a different antenna algorithm. Warning: This may disrupt remote tailgate closing. | 46 - Central Comfort: Long Coding > range_limitation_lock / rear / open / panic = Not Active | | Easy Entry (Seat) | When you turn off the ignition and open the door, the driver's seat automatically moves back for easier exit. | 36 - Driver Seat: Adaptations > Easy_Entry_Request = active | | Fold Mirrors via Key Fob | Automatically folds side mirrors when locking the car via remote. | 42/52 - Door Electronics: Adaptations > Spiegelverstellung > Funk Spiegelanklappung Modus = by_lookup (Via Remote) | | Auto Park Brake | Automatically engages the parking brake when you turn off the engine. | 09 - Cent. Elect: Adaptations > Automatic parking brake for engine start stop = active |

These are popular, well-tested adaptations and long coding changes for convenience, lighting, and driver assistance features.

The Audi A4 (B9) is a prime candidate for "coding" or "adaptations," which allow you to unlock hidden factory features or customize existing behaviors. Common modifications range from aesthetic changes like gauge sweeps to functional tweaks like increasing your key fob's range.

(Security: 20103) Set comfort_operation_range_limitation to Not_Active . 17-Instruments Long Coding Uncheck the bit for Seatbelt Warning . Important Safety & Technical Notes audi a4 b9 coding list

: Automatically tilts the passenger side mirror downward when the car is put in reverse to help with parking.

Module A5 (Front Sensors) -> Coding -> Byte 16 -> Enable Bit 7

Passenger mirror lowers automatically when reversing. Module 52 (Door Elect. Pass.) -> Coding -> Byte 4 -> Bit 2 3. Driver Assistance and Convenience | Feature | Description | Module & Coding

Module 52 (Passenger Door Electronics) -> Coding -> Byte 4 -> Enable Bit 2 and Bit 3

Module 17 (Dash Board) -> Long Coding -> Byte 1 -> Enable Bit 3 . 💡 Lighting Tweaks Daytime Running Lights (DRL) with Tail Lights

Module 17 (Dash Board) → Coding → Byte 1, Bit 0 (Staging). Warning: This may disrupt remote tailgate closing

Sweeps the speedometer and tachometer needles to their maximum values and back when you start the ignition. VCDS / OBDeleven Long Coding:

Enable the fancy startup animation for the taillights if not active. Module 46 (Central Conv) -> Coding -> Byte 12 -> Bit 0

The enthusiast standard. Requires a laptop and an enthusiast/professional cable VCDS.

Note: Without a physical hardware button on the indicator stalk, this mode will remain permanently ON above 65 km/h once coded. 🧰 Troubleshooting Common Errors