This guide provides a comprehensive walkthrough for enabling your garage door opener using VCDS (Vag-Com Diagnostic System) on a B8.5 Audi S4. While seemingly complex, this process can be accomplished by carefully following these steps. This modification allows for seamless integration with your vehicle, enhancing convenience and daily driving experience.
Accessing Hidden Menus and Enabling Interior Light Options
The first step involves accessing hidden menus within the MMI (Multi Media Interface) system to enable specific settings related to interior lighting. This lays the groundwork for subsequent coding changes.
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Activate Hidden Menu: Access the hidden menu by simultaneously pressing and holding the “Car” and “Menu” buttons for approximately 5 seconds.
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Configure Interior Light Menu Operation: Navigate through the hidden menu to:
[Hidden menu][car][carmenuoperation][interior light]
Change the setting to 5. This enables the interior light option within the main menu.
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Enable Interior Light in Device List: Remain in the hidden menu and navigate to:
[Hidden menu][car][cardevicelist][interior light]
Check the box to Enable the interior light. This step ensures the interior light function is recognized by the system.
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Assign Interior Light to CAN Bus: This crucial step often requires specific configuration depending on your vehicle’s setup. Try the following two options:
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Option 1: Komfort CAN:
[Hidden menu][car][carbusassignment][interior light]
Change the setting to CAN Komfort 1/9.
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Option 2: Extended CAN (If Option 1 Fails): If the first option doesn’t work, try this alternative:
[Hidden menu][car][carbusassignment][interior light]
Change the setting to CAN Extended 5/9.
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Reset MMI: After completing each of these steps, reset the MMI by pressing and holding the “Menu” button, the center control knob, and the upper right silver button simultaneously. This ensures the changes are applied.
Enabling HomeLink via Central Electronics Coding
Once the preliminary steps are completed, the final stage involves modifying the coding within the Central Electronics module.
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Access Central Electronics Module: Connect your VCDS to the vehicle’s OBD-II port and access module 09 – Central Electronics.
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Enable Long Coding Helper: Within the Central Electronics module, select Coding – 07, then choose Long Coding Helper.
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Modify Byte 16: Locate Byte 16 within the long coding.
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Activate Bit 6: Activate Bit 6 by manually setting its value to “1”. This enables the garage door opener functionality (1 = active).
Conclusion
By following this detailed guide, you should be able to successfully enable your garage door opener functionality on your B8.5 Audi S4 using VCDS. This modification adds a significant convenience factor to your daily driving routine. Remember to double-check each step and reset the MMI after each change. If you encounter any difficulties, consult online forums or resources dedicated to VCDS coding and Audi modifications.
