Allows passengers to watch DVD videos or USB media play on the MMI screen while the vehicle is driving.
Unlocks a built-in lap timer in the instrument cluster, which also helpfully forces the engine oil temperature to display on your main screen. 17 (Dashboard / Instrument Cluster)
Module 44 – Steering → Driving profile switch → activated (already active on S‑line) audi a4 b9 coding list
To perform coding, you need a diagnostic interface that supports the UDS protocol. The two most popular tools are:
The Ultimate Audi A4 B9 Coding & Hidden Features Guide Unlocking the true potential of your Audi A4 B9 (2016–Present) goes beyond basic maintenance. Through or OBDeleven , you can customize your vehicle's software to enable "hidden" features—from visual flares like needle sweeps to functional upgrades like Active Lane Assist. Allows passengers to watch DVD videos or USB
To make these changes, you will need a specialized diagnostic interface. Coding My A4 B9 With OBDEleven (Amazing & Fast)
| Feature | Control Module | Path / Instruction | Details | | :--- | :--- | :--- | :--- | | | 52 – Passenger Door / 09 | 52 : Byte 04 -> Bits 2 & 3 active. 09 : Adaptation -> Enable "mirror lowering with reverse gear" | Passenger mirror tilts down to show the curb when reversing. | | Lock/Unlock Beep (Chirp) | 46 – Comfort Module | Long Coding -> Byte 04 -> Activate Bit 6 | Honk or beep confirmation when locking/unlocking (requires factory alarm). | | Locking with Engine On | 46 – Comfort Module | Long Coding -> Byte 09 -> Activate Bit 07 | Allows you to lock the car while the engine is running (e.g., to warm it up). | | Disable Seatbelt Chime | 17 – Instrument Cluster | Adaptation -> Channel "Seat belt warning" -> Select "Deactivated" | Removes the audible chime for the driver seatbelt. | | Enable Hidden MMI Menu | 5F – Multimedia | Adaptation -> Set "Developer mode" to "Activated" | Access the factory "Green Menu" for advanced diagnostics. | The two most popular tools are: The Ultimate
| Function | Original Coding (Byte-Bit) | Modified Coding | Effect | |----------|----------------------------|-----------------|--------| | Needle Sweep (Gauge Staging) | Byte 1, Bit 0 = 0 | Byte 1, Bit 0 = 1 | Full dial sweep on ignition | | Coming/Leaving Home via Rain/Light Sensor | Byte 12, Bit 2 = 0 | Byte 12, Bit 2 = 1 | Enables auto lights based on ambient darkness | | DRL with Turn Signal Dimming | Byte 2, Bit 6 = 0 | Byte 2, Bit 6 = 1 | DRL dims (not turns off) when turn signal active | | Rear DRL (Tail lights with DRL) | Byte 18, Bit 4 = 0 | Byte 18, Bit 4 = 1 | Tail LEDs on during daytime |
The of your B9 (Pre-facelift 2016-2019 vs Facelift 2020+) Which coding tool you plan to use (VCDS, OBDeleven, etc.) Specific features you are most eager to unlock
: Change to your preferred variant (e.g., Change from Version 1 to Version 3 or 4 depending on firmware). 🛋️ Comfort & Convenience Modificiations 1. Disable Engine Start/Stop System Permanently
The Ultimate Audi A4 B9 Coding List: Unlock Hidden Features The Audi A4 B9 (2016–2024) comes packed with advanced electronics, but many premium features are deactivated at the factory based on regional regulations or trim levels. By using diagnostic software like VCDS (VAG-COM), OBDEleven, or VCP (Vag Can Professional), you can modify the car's software modules. This process, known as "coding" or "adaptation," allows you to customize your vehicle to your exact preferences.