Audi A4 B9 Coding List ((full))

Let me know if you want a printer‑friendly version or a PDF. Enjoy your personalized B9!

| Tool | Ease of use | Cost | Best for | |------|-------------|------|-----------| | OBDeleven | Very easy (phone app) | $60–150 | Quick tweaks, beginners | | VCDS | Expert | $200–300 | Full coding, logging, retrofits | | VCP | Professional | €150+ | Advanced adaptations, parameter changes | audi a4 b9 coding list

| Feature | Adaptation | New Value | |--------|-------------|------------| | Coming Home / Leaving Home via rain sensor | Außenlicht_Coming_Home → HMI → Regen_Licht_Sensor | Active | | Rear daytime running lights (DRL) together with front DRL | Daytime running lights → Tagfahrlicht-Dauerfahrlicht aktiviert zusaetzlich Standlicht | Active | | Scandinavian DRL (rear lights + front DRL) | Daytime running lights → Standlicht aktiviert zusaetzlich Tagfahrlicht | Active | | Flash turn signal 5 times (instead of 3) | Komfortblinken Blinkzyklen | 5 | | Dim LED headlights as DRL | Dimmunt Stg. DRL | 26 (adjust as desired) | Let me know if you want a printer‑friendly

Change at what speed the blind spot monitoring activates. DRL | 26 (adjust as desired) | Change

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.

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

Prevents accidental trunk openings by requiring you to hold the key fob button longer .