Audi A4 B9 Coding List [2026]

Allows you to press and hold the lock/unlock buttons on your remote to roll the windows and sunroof up or down. : 46 (Central Module Comfort System) Adaptation : Comfort operations → Comfort opening/closing

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

What specific are you using? (OBDeleven, VCDS, etc.) What model year is your A4 B9?

If you are unsure about a setting, . Always take a picture of the original setting before changing it.

Most coding requires the ignition to be on, but the engine should be off. audi a4 b9 coding list

Shows "D1, D2, S1" instead of just "D" or "S". 4. MMI & Infotainment

Filter/fresh air actuator -> Store recirculation setting Value: Change from not active to active Troubleshooting Common Coding Issues

Aussenbeleuchtung_Blinker → Komfortblinken Blinkzyklen

: Gauges sweep their full range when the ignition is turned on. Allows you to press and hold the lock/unlock

Note: The specific Byte numbers and Bit positions may vary slightly depending on your exact model year (B9 vs B9.5) and MMI version (MIB vs MIB2).

Test each modification individually to ensure it works without causing errors. If you'd like to proceed with a specific mod, tell me: Which tool you are using (VCDS or OBDeleven)? What year is your A4? Do you have the Virtual Cockpit (digital dash)?

Disables the annoying chime if you drive without a belt.

By default, the front DRL dims or turns off completely when the turn signal flashes. This code keeps the DRL at full brightness. 09 (Central Electrics) Adaptation: Außenbeleuchtung_Front (OBDeleven, VCDS, etc

Adaptation -> Derivatives or Display depiction -> Change from Version 1 to Version 2 or Version 3 (Test to find the S4 or RS4 skin compatible with your screen cluster). Enable Lap Timer & Oil Temperature Display

I can provide the exact step-by-step instructions or security codes for your setup. Share public link

: If your dashboard lights up like a Christmas tree, do not panic. Revert the last change you made back to its original value using your backup file. Clear the fault codes.

Coding -> Long Coding -> Byte 35 -> Bit 0 to 1 .

The enthusiast standard. Requires a laptop and an enthusiast/professional cable VCDS.