The VCDS (VAG-COM Diagnostic System) is a powerful tool that allows you to access and modify the hidden settings of your Audi A4. With the right knowledge, you can customize your driving experience and unlock features you never knew existed. This guide compiles a comprehensive list of VCDS tweaks specifically for the Audi A4, providing clear instructions on how to implement them. Remember to always back up your original coding before making any changes.
Common VCDS Modifications for Audi A4
This list covers a range of popular VCDS modifications for the Audi A4, categorized for easier navigation. Each tweak includes the necessary module, coding access procedure, and specific instructions for implementation.
Lighting Modifications
- Disable Amber Corner Lights: [09 – Cent. Elect.] [Coding – 07] -> Long Coding Helper -> Byte 10 Submodule 0 Bit 3 – Set to 0 to disable amber side markers (U.S. vehicles)
- Disable LED ‘Wink’ on Turn Signal: [09 – Cent. Elect.] [Coding – 07] -> Long Coding Helper -> Byte 3 Bit 2 – LEDs remain at full brightness with parking lights (1 = active). Bit 7 – Turn off LED-strip DRLs with indicators (1 = active)
- Enable DRL (Daytime Running Lights): [09 – Cent. Elect.] [Coding – 07] -> Long Coding Helper -> Byte 2. Various bits control DRL activation via different lights (fogs, high beams, LEDs, etc.). Refer to VCDS documentation for specific bit configurations.
- Enable Rear Tail Lights with DRLs: [09 – Cent. Elect.] [Coding – 07] -> Long Coding Helper -> Byte 2 Bit 7 – DRLs via Tail Lights Active (1 = Active)
- Enable Front Turn Signals as Parking Lights: [09 – Cent. Elect.] [Coding – 07] -> Long Coding Helper -> Byte 10 Bit 0 – Set to 1. After this change, enable front turn signals as DRLs in Byte 2 Bit 6.
- Enable Fog Lamp with Turn Signal: [09 – Cent. Elect.] [Coding – 07] -> Long Coding Helper -> Byte 4 Bit 0 – Set to 1.
- Independent Fog Light Control with High Beams:[09 – Cent. Elect.] [Coding – 07] -> Long Coding Helper -> Byte 4 Bit 1 (Front) and Bit 2 (Rear) – Set to 0 to disable dependency.
Convenience and Comfort Modifications
- Disable Seatbelt Chime: [17 – Instruments] [Coding – 07] -> Long Coding Helper -> Byte 0 Bit 2-4 – Set to inactive.
- Disable After-Wipe of Windscreen Wipers: [09 – Cent. Elect.] [Coding – 07] -> Find “x 8K1 955 119 WWS xxxx” in Long Coding Helper -> Byte 1 Bit 3 – Uncheck (1 = active).
- Enable Automatic Hill Hold Assist ‘Lite’: [03 – ABS Brakes] [Security Access – 16] (Enter code provided by VCDS) [Coding – 07] -> Long Coding Helper -> Byte 1 Bit 6 – Set to 1.
- Enable Release Parking Brake without Foot on Brake: [53 – Parking Brake] [Security Access – 16] (Enter code) [Adaptation – 10] -> Channel 4 – Set to 0.
- Enable Remote Operation of Windows and Sunroof: [46 – Cent. Conv.] [Coding – 07] -> Long Coding Helper -> Byte 2 Bit 2 – Set to 1.
- Enable Reverse Mirror Tilt:[52 – Door Elect, Pass.] [Coding – 07] -> Long Coding Helper -> Byte 4 Bit 4 and Bit 2 – Set to 1.
Display and Instrumentation Modifications
- Enable Gauge Test/Needle Sweep: [17 – Instruments] [Coding – 07] -> Long Coding Helper -> Byte 1 Bit 0 – Check the box for “Gauge Test/Needle Sweep active”.
- Enable Lap Timer: [17 – Instruments] [Coding – 07] -> Long Coding Helper -> Byte 1 Bit 3 – Check the box for “Lap Timer active”.
- Adjust Consumption in DIS:[17 – Instruments] [Adaptation – 10] -> Channel 3 – Adjust the value to calibrate fuel consumption display. See original document for calculation examples.
Important Considerations
This guide provides a starting point for VCDS modifications on your Audi A4. Always consult reputable sources and forums for the most up-to-date information and procedures. Remember that incorrect coding can potentially damage your vehicle’s systems. Proceed with caution and at your own risk.
