Audi A4 B9 Coding List 🎁 Secure

: Tagfahrlicht (Daytime Running Lights) → Tagfahrlicht-Dauerfahrlicht aktiviert zusatzlich Standlicht → Change to "Active" High Beam Assist (HBA) Activation

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| Function | Modification | Effect | |----------|--------------|--------| | Lane Assist default to “Last Setting” | Byte 12, Bit 0 = 1 | Lane assist stays off/on as last used, not reset at ignition | | Early warning for Pre-sense | Byte 7, Bit 2 = 1 | Increases sensitivity of collision warning |

Passenger side mirror tilts down when in reverse gear to help with parking.

: The needles for the speedometer and tachometer sweep to their maximum and back upon starting the engine. Lap Timer & Oil Temperature audi a4 b9 coding list

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 )

Changes the graphics of the Virtual Cockpit to mirror S4 or RS4 performance themes (requires specific cluster firmware variants). VCDS / OBDeleven Long Coding:

Acoustic beep when locking/unlocking the car (can usually be toggled in MMI afterward).

: Allows you to open or close windows and tilt the sunroof using the remote key fob. Lap Timer & Oil Temperature Enables a horn

: The professional standard by Ross-Tech. It requires a Windows laptop and a wired hex-V2 cable. It has a steeper learning curve but is incredibly reliable for deep manual coding.

: Byte 03, Disable Bit 7 (Exact byte may vary by sub-firmware; look for "DRL dimming during turn signal").

: Keeps the rear taillights on whenever the front Daytime Running Lights (DRLs) are active.

Always perform a full scan and backup of your original settings before making changes. Use a battery maintainer if coding for extended periods to prevent voltage drops. Top Popular Tweaks for Audi A4 B9 : Allows you to open or close windows

A more mobile-friendly option that uses a Bluetooth dongle and a smartphone app. It offers "One-Click Apps" for those who want to avoid manual long coding. Safety & Visual Modifications

Hook up a battery tender if you plan to sit in the car with the ignition on for extended periods.

: Set all desired options (front windows, rear windows, sunroof) to "Active" Passenger Side Mirror Dip on Reverse

Adjust how aggressively the system warns you about speed limits.

Here's a non-exhaustive list of coding options for the A4 B9: