Audi A4 B9 Coding List Jun 2026

→ Long Coding → Byte 2 → Enable Bit 7

** VCDS Mod List for B9 ** | Audizine Audi Enthusiast Forums

Module 08 (Auto HVAC) -> Adaptation -> Memory for air recirculation

The "value for money" (since the lists are free) is infinite. Popular modifications found in these lists include: audi a4 b9 coding list

| 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. |

Provides a short chirp from the factory alarm siren when you lock or unlock the vehicle. 46 (Central Module Comfort System)

If your B9 has the front-facing camera mounted on the rearview mirror but lacked the premium high-beam assist option from the factory, you can manually code it in. → Long Coding → Byte 2 → Enable

Byte 2 → Enable Bit 7 (or check "Tagfahrlicht-Dauerfahrlicht" active) Disable DRL Wink

Many modules on B9 vehicles will reject security access or adaptation writes if the car hood (bonnet) is closed. Pop the hood open before coding.

Allows passengers to watch DVDs while driving. | | Lock/Unlock Beep (Chirp) | 46 –

Unlock more color options for the ambient lighting (if equipped). Module 09 -> Adaptation -> Ambient Light Color 2. Convenience and Comfort Upgrades

Adds a toggle switch in your MMI settings to turn the daytime running lights on or off manually. 09 (Central Electrics) Long Coding: Byte 31 -> Enable Bit 0 🚗 Driver Assistance & Comfort Features 8. Enable Audi Active Lane Assist (ALA)