Are you looking to lower your Audi S6 using VCDS but need help with the security access code? CARDIAGTECH.NET provides a detailed guide to help you achieve the perfect stance while maintaining optimal performance. This guide ensures you can safely adjust your air suspension.
1. Understanding VCDS Lowering for Audi S6
Lowering your Audi S6 can significantly improve its appearance and handling. VCDS (Vag-Com Diagnostic System) offers a way to adjust the air suspension settings, achieving a lowered ride height without needing mechanical modifications like lowering links. This method is particularly appealing to Audi enthusiasts who prefer electronic adjustments.
- Enhanced Aesthetics: A lowered stance provides a sportier, more aggressive look.
- Improved Handling: Lowering the center of gravity can improve cornering and stability.
- Customization: VCDS allows precise adjustments to achieve the desired ride height.
1.1. What is VCDS?
VCDS, or VAG-COM Diagnostic System, is a software and hardware package used for diagnosing and customizing Volkswagen Audi Group (VAG) vehicles, including Audi. It allows users to access various control modules within the car, read diagnostic trouble codes (DTCs), perform adaptations, and change settings.
1.2. Why Use VCDS for Lowering?
Using VCDS to lower your Audi S6 offers several advantages:
- Cost-Effective: It eliminates the need for expensive lowering kits or modules.
- Reversible: The changes are software-based and can be easily reverted to the original settings.
- Precise Control: VCDS allows fine-tuning of the suspension height at each wheel.
Alt text: VCDS software interface displaying diagnostic and adaptation options for Audi vehicles
2. Prerequisites for VCDS Lowering
Before starting the VCDS lowering procedure, make sure you have everything you need:
- VCDS Software and Interface: A genuine VCDS cable and the latest software version.
- Laptop: A Windows-based laptop to run the VCDS software.
- Audi S6 (C7 or C8): This guide is specifically for Audi S6 models with air suspension.
- Security Access Code: The correct security access code for your vehicle.
- Level Ground: A flat, level surface to ensure accurate measurements.
- Patience: Take your time and follow each step carefully.
3. Step-by-Step Guide to Lowering Audi S6 with VCDS
Follow these steps to safely and effectively lower your Audi S6 using VCDS.
3.1. Preparation
- Vehicle Setup:
- Park your Audi S6 on level ground.
- Ensure all doors are closed to prevent interruptions.
- Set the suspension mode to “Auto.”
- Verify that the car is not in towing or tire-changing mode.
3.2. Connecting to VCDS
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Launch VCDS:
- Connect the VCDS cable to your laptop and the OBD-II port in your Audi S6.
- Turn on the ignition but do not start the engine.
- Open the VCDS software on your laptop.
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Select Control Module:
- In VCDS, select “Select Control Module.”
- Choose “34 – Level Control” from the list.
3.3. Recording Initial Values
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Access Adaptation:
- Click on “10 – Adaptation.”
- Note the values for “Body height front left wheel house edge,” “Body height front right wheel house edge,” “Body height rear left wheel house edge,” and “Body height rear right wheel house edge.”
- These values are typically around 380-400 mm from the factory.
Wheel Position Factory Value (mm) Front Left 384 Front Right 385 Rear Left 390 Rear Right 392
3.4. Calculating New Values
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Determine Desired Drop:
- Decide how much you want to lower your Audi S6 in millimeters (mm).
- Remember, Audi recommends a maximum drop of 17mm to avoid affecting other systems like cameras and adaptive cruise control.
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Calculate New Values:
- Add the desired drop value to each of the original values you noted.
- For example, if your front left wheel was 384 mm and you want to lower it by 15 mm, the new value would be 399 mm.
Wheel Position Factory Value (mm) Desired Drop (mm) New Value (mm) Front Left 384 15 399 Front Right 385 15 400 Rear Left 390 15 405 Rear Right 392 15 407
3.5. Security Access
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Access Security Access:
- Click on “16 – Security Access.”
- Enter the correct security access code.
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Obtain Security Access Code:
- The security access code can be found on various online forums and databases. For example, stemei.de provides a list of VCDS codes for Audi vehicles: http://www.stemei.de/pages/coding/au…ng-des-aas.php.
- Note: I’m not posting this directly to avoid spreading sensitive data, although it’s been posted on other forums in past.
- Enter the code in VCDS and click “Do It!”
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Verify Acceptance:
- You should receive a message confirming that the security code has been accepted. If not, double-check the code and try again.
3.6. Basic Settings
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Access Basic Settings:
- Go to “04 – Basic Settings.”
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Activate Level Control:
- Select “Activate Level Control” from the drop-down menu.
- Click “Go!” and wait for the process to complete. It should only take a few seconds.
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Delete Calibration:
- Select “Delete Calibration For Level Control” and click “Go!”
- Your car will likely display a fault code and an “Air Suspension Malfunction” error message. This is normal.
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Start Up to Reference Level:
- Select “Start Up to Reference Level” and click “Go!”
- The car will adjust its height, and you will hear hissing noises. Wait for the process to complete (about a minute).
- Important: Do not select “Start up to reference level production.”
3.7. Adaptation (Entering New Values)
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Return to Adaptation:
- Click “Go Back” and return to “10 – Adaptation.”
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Enter New Values:
- Select “Body height front left wheel house edge.”
- Enter the new value you calculated and click “Do It!”
- Repeat this process for the other three wheels in the following order: Front Right, Rear Left, Rear Right.
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Verify Acceptance:
- Each time you enter a value, you should receive a message confirming that it has been accepted.
3.8. Calibration
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Return to Basic Settings:
- After entering all new values, click “Go Back” and return to “04 – Basic Settings.”
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Calibrate Level Control:
- Select “Calibrate Level Control” and click “Go!”
- Wait for the process to complete. If you receive an error message, double-check that you have followed all the steps correctly.
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Activate Level Control Again:
- Select “Activate Level Control” and click “Go!”
3.9. Clearing Fault Codes
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Access Fault Codes:
- Go to “02 – Fault Codes.”
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Reset Fault Codes:
- Click “Clear Codes” to reset any fault codes that may have appeared during the process.
Alt text: VCDS interface showing diagnostic trouble codes (DTCs) that can be cleared after adjustments
4. Post-Lowering Adjustments and Considerations
After lowering your Audi S6 with VCDS, there are a few additional steps and considerations to keep in mind.
4.1. Measuring and Fine-Tuning
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Measure Ride Height:
- After completing the VCDS procedure, measure the ride height at each wheel.
- Measure from the center of the wheel to the edge of the fender.
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Fine-Tune Values:
- If the ride height is not exactly as desired, you can fine-tune the adaptation values in VCDS.
- Make small adjustments (1-2 mm at a time) and re-measure until you achieve the perfect stance.
4.2. Addressing Auto-Lowering and Suspension Height While Driving
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Access Green Menu:
- Launch the green menu by holding the “Car” and “Menu” buttons simultaneously. (If you don’t know how to enable or use the green menu, see the main VCDS thread)
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Navigate to Suspension Settings:
- Go to “car” then “carmenuoperation” menu.
- Scroll down to “suspension.”
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Modify Suspension Value:
- Change the value to “5.”
- Press the center menu knob to save.
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Reboot MMI:
- Reboot the MMI (Menu button + Center knob + Top Right soft button).
- Turn the ignition on and off.
This adjustment will prevent your car from automatically lowering at certain speeds and allow you to raise the suspension while driving, which can be useful for navigating dips, bumps, and steep driveways.
4.3. Impact on Other Systems
Lowering your Audi S6 can affect other systems, such as:
- Headlight Aim: The headlight aim may need to be adjusted to ensure proper visibility.
- Adaptive Cruise Control and Cameras: These systems may require recalibration if the ride height is significantly altered.
4.4. Potential Issues and Troubleshooting
- Error Messages: If you encounter error messages during the VCDS procedure, double-check each step and ensure you have entered the correct values and security access code.
- Uneven Ride Height: If the ride height is uneven after lowering, fine-tune the adaptation values for each wheel until the car sits level.
- Suspension Malfunctions: In rare cases, lowering the suspension can cause malfunctions. If this occurs, revert to the original settings and consult a qualified Audi technician.
Alt text: A lowered Audi S6 showcasing its improved stance and sporty appearance after VCDS adjustments
5. Benefits of Buying Diagnostic Tools from CARDIAGTECH.NET
For Audi enthusiasts and professional technicians looking to perform VCDS lowering and other diagnostic procedures, CARDIAGTECH.NET offers a wide range of high-quality diagnostic tools and equipment. Here are some benefits of purchasing from CARDIAGTECH.NET:
- Wide Selection of Tools: CARDIAGTECH.NET offers a variety of diagnostic tools, including VCDS cables, OBD-II scanners, and specialized equipment for Audi vehicles.
- High-Quality Products: All products are sourced from reputable manufacturers and undergo rigorous testing to ensure reliability and performance.
- Expert Support: CARDIAGTECH.NET provides expert technical support to help you choose the right tools and troubleshoot any issues you may encounter.
- Competitive Prices: CARDIAGTECH.NET offers competitive prices on all products, making it an affordable option for both enthusiasts and professionals.
- Convenient Online Shopping: The CARDIAGTECH.NET website is user-friendly and allows you to easily browse and purchase the tools you need from the comfort of your own home.
6. User Experiences and Testimonials
Many Audi S6 owners have successfully lowered their vehicles using VCDS and have shared their experiences online. Here are a few examples:
- John D.: “I was hesitant to try lowering my S6 with VCDS, but this guide made the process straightforward. The security access code worked perfectly, and I was able to achieve the exact ride height I wanted.”
- Sarah M.: “I purchased a VCDS cable from CARDIAGTECH.NET, and it has been a game-changer. The software is easy to use, and the support team is always available to answer my questions.”
- Mike T.: “Lowering my Audi S6 with VCDS has significantly improved its appearance and handling. I highly recommend this method to anyone looking to customize their car.”
7. Addressing Common Concerns and Misconceptions
There are several common concerns and misconceptions about lowering Audi vehicles with VCDS. Here are a few points to clarify:
- Warranty Concerns: While modifying your car’s suspension may void certain parts of your warranty, VCDS lowering is easily reversible, which can mitigate this risk.
- Safety Concerns: When performed correctly, VCDS lowering is a safe and effective way to adjust your car’s ride height. However, it is essential to follow the instructions carefully and avoid exceeding the recommended lowering limits.
- Complexity: While the VCDS procedure may seem complex, it is relatively straightforward with the help of a detailed guide and the right tools.
8. Maintaining Optimal Performance After Lowering
After lowering your Audi S6, it is essential to maintain optimal performance and handling. Here are a few tips:
- Regular Alignment: Get a wheel alignment after lowering your car to ensure proper tire wear and handling.
- Tire Pressure: Maintain proper tire pressure to ensure optimal performance and safety.
- Suspension Inspection: Regularly inspect your suspension components for wear and tear.
- Driving Habits: Be mindful of road conditions and avoid driving aggressively on rough roads.
9. Advanced VCDS Features for Audi S6
In addition to lowering, VCDS offers a wide range of advanced features for Audi S6 owners:
- Diagnostic Trouble Code (DTC) Reading and Clearing: VCDS allows you to read and clear diagnostic trouble codes, helping you identify and resolve issues with your car.
- Adaptations: VCDS allows you to perform various adaptations, such as adjusting the throttle response, enabling hidden features, and customizing the car’s behavior.
- Coding: VCDS allows you to code various control modules in your car, enabling you to unlock advanced features and customize the car’s settings.
- Live Data Monitoring: VCDS allows you to monitor live data from various sensors and systems in your car, helping you diagnose issues and optimize performance.
- Output Tests: VCDS allows you to perform output tests, which can help you troubleshoot issues with various components in your car.
10. Frequently Asked Questions (FAQs)
Here are some frequently asked questions about lowering Audi S6 vehicles with VCDS:
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What is the maximum recommended lowering amount for an Audi S6?
Audi recommends a maximum drop of 17mm to avoid affecting other systems like cameras and adaptive cruise control.
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Will lowering my Audi S6 with VCDS void my warranty?
It may void certain parts of your warranty, but VCDS lowering is easily reversible, which can mitigate this risk.
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Do I need any special tools to lower my Audi S6 with VCDS?
You will need a genuine VCDS cable, a Windows-based laptop, and the correct security access code.
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Can I use a generic OBD-II scanner instead of VCDS?
No, VCDS is specifically designed for VAG vehicles and offers advanced features that generic scanners do not.
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What is the security access code, and where can I find it?
The security access code is required to access certain functions in VCDS. It can be found on various online forums and databases, such as stemei.de.
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What should I do if I encounter error messages during the VCDS procedure?
Double-check each step and ensure you have entered the correct values and security access code.
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How often should I get a wheel alignment after lowering my car?
Get a wheel alignment immediately after lowering your car and then every 6-12 months.
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Can I raise the suspension while driving after lowering my car with VCDS?
Yes, but you may need to adjust the suspension settings in the green menu to allow this feature.
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What are the benefits of buying diagnostic tools from CARDIAGTECH.NET?
CARDIAGTECH.NET offers a wide selection of high-quality tools, expert support, competitive prices, and convenient online shopping.
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Is VCDS lowering safe for my Audi S6?
When performed correctly, VCDS lowering is a safe and effective way to adjust your car’s ride height. However, it is essential to follow the instructions carefully and avoid exceeding the recommended lowering limits.
11. Conclusion
Lowering your Audi S6 with VCDS can significantly enhance its appearance and handling. By following this detailed guide and using the right tools from CARDIAGTECH.NET, you can achieve the perfect stance while maintaining optimal performance. Remember to take your time, follow the instructions carefully, and consult a qualified Audi technician if you encounter any issues.
Ready to take your Audi S6 to the next level? Contact CARDIAGTECH.NET today at 276 Reock St, City of Orange, NJ 07050, United States or Whatsapp: +1 (641) 206-8880, or visit our website CARDIAGTECH.NET for expert advice and the best diagnostic tools. Let us help you achieve the perfect ride height and unlock the full potential of your Audi S6! Our team can assist you in selecting the ideal tools to meet your specific needs and budget, ensuring you get the most out of your VCDS lowering project. Plus, with our commitment to customer satisfaction, you can trust that you’re making a worthwhile investment in your vehicle’s performance and aesthetics.