Audi A4 B9 Coding List ((free)) Jun 2026

Note: This modification requires the factory front windshield camera (A5 module) and a high-spec MMI navigation system for mapping data verification.

→ Adaptations → (47)-Audio Management-Volume_software_amplifier Change value from 100 to 150 . This increases the internal pre-gain by 6dB. It gives a noticeable "wake-up" to the standard Audi sound system. Warning: Do not exceed 180 or you will get distortion.

Long Coding -> Byte 1 -> Enable Bit 0 (Gauge Test/Needle Sweep active) 2. Enable Lap Timer & Oil Temperature

| Module | Function | Potential Modifications | | :--- | :--- | :--- | | | Engine | Throttle response, start/stop defaults, exhaust flaps | | 02 | Transmission | Gear display in D/S, launch control settings | | 03 | ABS Brakes | Brake assist sensitivity (Expert only!) | | 05 | Access/Start Auth | Comfort window control via door handle | | 08 | Auto HVAC | Air recirculation memory, start/stop via AC button | | 09 | Central Electrics | Lights (DRLs, cornering, ambient), wipers, windows | | 13 | Adaptive Cruise | Distance default settings, ACC behavior tuning | | 17 | Dashboard | Needle sweep, layout, lap timer, seatbelt warning | | 19 | CAN Gateway | Module installation lists, diagnostic settings | | 42/52 | Door Electrics | Mirror folding (delay/behavior), window logic | | 44 | Steering Assist | Lane assist sensitivity, steering weight | | 46 | Central Comfort | Locking behavior, key range, alarm chirps | | 5F | Multimedia (MMI) | Video in motion, green menu, sound actuator volume | | A5 | Front Camera | Lane assist, traffic sign recognition, high beam assist | audi a4 b9 coding list

Adds a track lap timer and oil temperature display to the driver screen .

We will organize codes by the Control Module (Hex ID). Legend: (MMI) = Menu appears in screen; (Key Fob) = Uses remote.

Run a full diagnostic scan and save your original adaptation channel maps and long coding data before changing anything. It gives a noticeable "wake-up" to the standard

Module 09 (Central Electrics) -> Long Coding -> Tagfahrlicht-Dauerfahrlicht aktiviert -> Set to Active . Disable Orange Side Markers

Byte 2 -> Enable Bit 7 (Tagfahrlicht-Dauerfahrlicht aktiviert) 7. Scandinavian DRL Menu in MMI

If you have a 2020+ A4 B9.5 (with the honeycomb grille and touchscreen MMI), note these changes: Enable Lap Timer & Oil Temperature | Module

: Module 17 > Byte 2 > Bits 3-7 (Requires choosing the specific vehicle variant, e.g., RS4 for A4). Lighting & Convenience Customization

Allows passengers to watch DVD videos or USB media play on the MMI screen while the vehicle is driving.

Shows D1 , D2 , S1 , S2 instead of just D or S on your dash .

Module 44 – Steering → Driving profile switch → activated (already active on S‑line)