The Audi A4 B8 platform offers a wealth of customization options hidden within its electronic control units (ECUs). Accessing these features requires a diagnostic tool like VCDS (VAG-COM), and knowing the correct coding procedures. This comprehensive guide provides an extensive list of VCDS coding modifications specifically for the Audi A4 B8, allowing you to personalize your driving experience.
Common Audi A4 B8 VCDS Tweaks:
This list compiles popular VCDS modifications for the A4 B8, categorized for easier navigation. Remember to back up your original coding before making any changes.
Lighting:
- Disable After-wipe of Windscreen Wipers: Deactivates the automatic rear wiper wipe after using the windshield washers. [09 – Cent. Elect.] [Coding – 07] -> [Long Coding Helper] -> Byte 1 Bit 3 – Uncheck.
- Disable Amber Corner Lights: Eliminates the amber cornering lights in the US models. [09 – Cent. Elect.] [Coding – 07] -> [Long Coding Helper] -> Byte 10 Submodule 0 Bit 3 – Set to 0.
- Disable LED ‘Wink’ on Turn Signal: Prevents the LEDs from dimming when the turn signal is activated. [09 – Cent. Elect.] [Coding – 07] -> [Long Coding Helper] -> Byte 3 Bit 2 & Bit 7 – Modify as needed.
- Enable DRL via Various Lights: Configure daytime running lights (DRLs) to utilize front side markers, high beams, fog lights, LEDs, side markers, or tail lights. [09 – Cent. Elect.] [Coding – 07] -> [Long Coding Helper] -> Byte 2 Bit 1, 2, 3, 4, 6, 7 – Adjust accordingly.
- Enable Rear Tail Lights with DRLs: Activates the rear tail lights along with the DRLs. [09 – Cent. Elect.] [Coding – 07] -> [Long Coding Helper] -> Byte 2 Bit 7 – Set to 1.
- Adjust LED Brightness: Customize the brightness of the LED lights. [09 – Cent. Elect.] [Security Access – 16] -> [Adaptation – 10] -> Channel 3 – Set value between 5 and 100.
Convenience Features:
- Disable Seatbelt Chime: Turns off the audible seatbelt warning chime. [17 – Instruments] [Coding – 07] -> [Long Coding Helper] -> Byte 0 Bit 2-4 – Set to inactive.
- Enable Automatic Hill Hold Assist ‘Lite’: Provides a basic hill hold function. [03 – ABS brakes] [Security Access – 16] -> [Coding – 07] -> [Long Coding Helper] -> Byte 1 Bit 6 – Set to 1.
- Enable Remote Operation Windows and Sunroof: Allows control of windows and sunroof using the remote key. [46 – Cent. Conv.] [Coding – 07] -> [Long Coding Helper] -> Byte 2 Bit 2 – Set to 1.
- Enable Reverse Mirror Tilt: Automatically tilts the passenger side mirror down when reversing. [52 Door Elect, Pass.] -> [Coding – 07] -> [Long Coding Helper] -> Byte 4 Bit 4 and Bit 2 – Set to 1.
Instrument Cluster and DIS:
- Enable Gauge Test/Needle Sweep: Activates a diagnostic needle sweep on the instrument cluster gauges. [17 – Instruments] [Coding – 07] -> [Long Coding Helper] -> Byte 1 Bit 0 – Check the box.
- Enable Lap Timer: Enables the lap timer function in the instrument cluster. [17 – Instruments] [Coding – 07] -> [Long Coding Helper] -> Byte 1 Bit 3 – Check the box.
- Adjust Consumption in DIS: Calibrate the fuel consumption displayed in the Driver Information System (DIS). [17 – Instruments] [Adaptation – 10] -> Channel 3 – Adjust value as needed.
Other Modifications:
- Enable Hidden Menu in MMI: Unlocks a hidden diagnostic menu in the Multi Media Interface (MMI). [5F – Information Electr.] [Adaptation – 10] -> Channel 6 – Change 0 to 1. Use with caution.
- Enable VIM on MMI: Enables Video In Motion for the MMI system. [5F – Information Electr.] [Advanced ID – 1A] -> [Security Access] -> [Adaptation – 10] -> Channel 48 – Set to 255.
Disclaimer:
This list is for informational purposes only. Modifying your vehicle’s coding can void warranties or cause malfunctions if done incorrectly. Proceed with caution and consult reputable sources before attempting any modifications. Always back up your original coding. This information is not exhaustive, and other codings may be available. Refer to Ross-Tech’s VCDS documentation and online forums for the most up-to-date information.
