Audi A4 B9 Coding List «Instant Download»

Coding the Audi A4 B9 involves using diagnostic tools like VCDS (VAG-COM) or OBDeleven to access control modules and modify "bits" to unlock hidden features.

Rear taillights stay on even when only Daytime Running Lights (DRLs) are active.

By default, the bright front DRL dims when you activate the turn signal so the indicator is easier to see. You can program it to stay at 100% brightness. : 09 (Central Electrics) Action : Coding / Long Coding

: Reduce or disable the synthetic engine noise pumped into the cabin. audi a4 b9 coding list

If you are using VCDS, you won't see plain English names like "Needle Sweep." You will see Long Coding Helper bytes.

For cars with Matrix LED/Laser LED equipped but not fully enabled.

A Bluetooth-based mobile tool that uses an app on your smartphone. It is popular for its "One-Click Apps" Coding the Audi A4 B9 involves using diagnostic

: Adds a lap timer to the Driver Information System (DIS) or Virtual Cockpit.

Gauge needles sweep to max and back upon ignition.

: Tilts the passenger-side mirror downward when in reverse to help with curb parking (often requires the mirror switch to be set to the passenger side). You can program it to stay at 100% brightness

| Feature Category | Feature Description | Module | Procedure / Adaptation Channel | Value/Setting to Change | | :--- | :--- | :--- | :--- | :--- | | | Needle Sweep (Staging) | 17 - Instruments | Long Coding, Byte 1 | Activate Bit 0 | | | Lap Timer / Oil Temp | 17 - Instruments | Long Coding, Byte 1 | Activate Bit 3 | | | Show Gear in D/S | 02 - Auto Trans | Adaptation | Channel: "Single Gear Display", New Value: "D on/S on" | | Driver Assist | Active Lane Assist | A5 - Front Sens. Drv. Assist | Long Coding, Byte 16 | Activate Bit 4 | | | | 09 - Cent. Elect. | Long Coding, Byte 11 | Activate Bit 6 | | | | 44 - Steering Assist | Long Coding, Byte 2 | Activate Bit 0 | | | | 5F - Elect. Info. | Adaptations | Activate lane_assist_0x19 and lane_assist_0x19_msg_bus | | | Traffic Jam Assist | 13 - Auto Dist. Reg | Long Coding, Byte 1 | Bits 3 & 4 | | | | 44 - Steering Assist | Long Coding, Byte 2 | Bit 0 | | | High Beam Assist | 09 - Cent. Elect. | Long Coding, Byte 5 | Bit 0, and dropdown to "60" | | | | A5 - Frt Sens. Drv. Assist | Long Coding, Byte 21 | Dropdown to "20" | | | Traffic Sign Recognition | A5 - Frt Sens. Drv. Assist | Long Coding | Byte 1 Bit 0 | | | | 5F - Elect. Info. | Adaptations | Activate menu_display_road_sign_identification , etc. | | Convenience | Lock/Unlock Chirp | 46 - Central Conv. | Long Coding (or 09) | Activate "Acknowledge Signals" | | | Comfort Windows (Remote) | 46 - Central Conv. | Long Coding | Activate "Comfort Operation" | | | Mirror Fold on Lock | 42/52 - Door modules | Coding | Activate "Fold mirror" function | | | Disable Seatbelt Chime | 17 - Instruments | Long Coding, Byte 12 | Activate Bit 1 (Seat Belt Warning inactive) | | | 5x Turn Signal Flash | 46 - Central Conv. | Adaptation | "Komfortblinken" to "5" cycles | | | Coming/Leaving Home | 09 - Cent. Elect. | Adaptations | Set activation time in seconds | | Lighting | Scandinavian DRLs | 09 - Cent. Elect. | Long Coding | Activate the option for rear lights with DRL | | | Disable Orange Side Markers | 09 - Cent. Elect. | Long Coding | Disable Bit for "Side Marker Light" | | | DRL Menu in MMI | 09 - Cent. Elect. | Adaptations | Channel (5)-Daytime running lights to "active" | | | Ambient Light on Unlock | 09 - Cent. Elect. | Adaptation | Set activation via central locking | | MMI / Audio | AM Radio Band Removal | 5F - Elect. Info. | Long Coding, Byte 9 | Set to value that disables AM (e.g., "11" hex) | | | Deactivate Start/Stop | 19 - CAN Gateway | Adaptations | Change Start/Stop function to "not active" | | Performance | Sportier Throttle Response | 44 - Steering Assist | Coding | Select "Audi dynamic steering" variant |

Factory coding often disables certain features due to regional regulations, cost trimming, or model hierarchy (e.g., reserving ambient lighting for A6/Q7). Using diagnostic interfaces, owners can re-enable these features. This paper aggregates the most stable B9 codings, excluding adaptations (which alter parameters) to focus strictly on binary/hex coding.