Many Audi Q3 owners find the automatic start/stop function less than desirable. This feature, designed to save fuel, shuts off the engine when the car comes to a complete stop and restarts it when the driver releases the brake. While environmentally conscious, it can be disruptive and annoying for some drivers. Luckily, with a VCDS (VAG-COM Diagnostic System) cable and the correct coding procedure, this feature can often be modified. This article explores the process and addresses common issues encountered while trying to disable the start/stop system using Audi Q3 Vcds Codes.
Common Procedure for Disabling Start/Stop with VCDS
The typical method to disable the start/stop system in various Audi models involves the following steps:
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Access Module 09 – Central Electrics: Connect your VCDS cable to your Audi Q3’s OBD-II port and launch the VCDS software. Select “Select Control Module” and choose “09 – Cent. Elect.”
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Security Access: Navigate to “Security Access” and enter the code 20113. This code grants access to the adaptation channels necessary for modifying the start/stop behavior.
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Adaptation Channel 34: Once security access is granted, go to “Adaptation – 10.” Locate “Channel 34” which controls the start/stop settings.
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Modify the Value: Read the current value in Channel 34. Then, modify this value based on your desired outcome:
- Subtract 4: This generally disables the start/stop system by default, making it off each time you start the car.
- Add 32: This often enables the “last-state” or “memory” function. The system will remember whether the start/stop was on or off when the car was last turned off and will retain that setting on the next start.
- Add 64: This usually inverts the indicator light behavior on the start/stop button.
Troubleshooting Security Access Issues with Audi Q3 VCDS Codes
The provided VCDS scan reveals a potential issue. The author states that the security access code 20113 is not accepted for their Audi Q3. This is a common problem and indicates that a different code or procedure may be required for this specific vehicle.
Possible reasons for code rejection include:
- Incorrect Code: Double-check the code entry for typos. Ensure you’re using the correct code for your specific Audi Q3 model year and installed modules. Consulting online forums dedicated to VCDS coding and specifying your exact Q3 model and year can often provide the correct code.
- Software/Hardware Compatibility: Confirm that your VCDS software and hardware versions are up-to-date and compatible with your Q3’s control modules. Older VCDS versions may not support newer vehicles or features.
- Module Variations: Different control module part numbers and software versions may require different security access codes. Refer to the VCDS scan in the original post to identify the “Part No SW” and “HW” versions for module 09 – Central Electrics. This information is crucial for finding the correct coding procedure.
Finding the Right Audi Q3 VCDS Codes
If the standard code doesn’t work, further research is necessary:
- Ross-Tech Wiki: The official Ross-Tech wiki (the creators of VCDS) is an invaluable resource. It contains a vast database of coding information for various VAG (Volkswagen Audi Group) vehicles. Searching the wiki for “Audi Q3 Start Stop Disable” or similar terms, along with your model year, might yield specific instructions.
- Online Forums: Numerous online communities and forums are dedicated to VCDS coding and VAG vehicles. Search for posts related to disabling start/stop in the Audi Q3, specifically mentioning your model year.
- VCDS Support: Contacting Ross-Tech directly for support can also be beneficial. They can often provide guidance on specific coding procedures based on your vehicle’s details.
By leveraging these resources and carefully examining your vehicle’s VCDS scan data, you can increase your chances of finding the correct Audi Q3 VCDS codes and successfully disabling the start/stop function. Remember to always proceed cautiously when modifying vehicle settings with VCDS and back up any existing data before making changes.
