Audi A4 B9 Coding List

Essential Pre-Coding Safety

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.

6F-Diff Lock / Transfer Box (on AWD variants)

Module 19 (Gateway) → Adaptation → Start/Stop start limit voltage → Change to 12V. audi a4 b9 coding list

VCDS

The Audi A4 B9 (2016–2024) is a highly customizable platform for enthusiasts using tools like (Vag-Com), OBDeleven , or VCP . Coding allows you to unlock "hidden" factory features that were either disabled for specific markets or restricted to higher trim levels. 🛠️ Essential Tools for B9 Coding Essential Pre-Coding Safety Coding the Audi A4 B9

Critical Notes:

Allows you to open the trunk without unlocking the whole car. Coding allows you to unlock "hidden" factory features

Maintain Battery Voltage:

Ensure your car is connected to a battery charger or has a strong charge; low voltage during coding can cause modules to fail.

Access: [46] → Coding

For Adaptive Cruise Control (ACC) and Lane Assist.