VCDS Codes List: Unlock Your Audi S4’s Potential

Vcds Codes List is your key to unlocking hidden features and customizing your Audi S4. At CARDIAGTECH.NET, we provide the tools and resources you need to optimize your vehicle’s performance and personalize your driving experience, offering solutions that let you take full command of your Audi S4. Explore advanced diagnostics and coding options to enhance your car’s capabilities.

1. Understanding VCDS and its Importance

VCDS, or Vag-Com Diagnostic System, is a powerful software and hardware tool used for diagnosing and customizing Volkswagen Audi Group (VAG) vehicles, including the Audi S4. It allows you to access and modify various control modules within your car, enabling you to enable or disable features, adjust settings, and troubleshoot issues. Having a comprehensive VCDS codes list is essential for any Audi S4 owner or technician looking to optimize their vehicle’s performance and personalize its functionalities. With the right codes, you can fine-tune your car to match your preferences and driving style.

1.1. What is VCDS?

VCDS is a diagnostic software used to communicate with and modify the various electronic control units (ECUs) in VAG vehicles. It provides a user-friendly interface to access detailed information about your car’s systems, including fault codes, sensor data, and adaptation settings.

1.2. Why Use VCDS on Your Audi S4?

Using VCDS on your Audi S4 offers numerous benefits:

• Customization: Enable or disable features to personalize your driving experience.
• Diagnostics: Identify and troubleshoot issues with your car’s systems.
• Performance Tuning: Adjust settings to optimize your car’s performance.
• Cost Savings: Perform maintenance and repairs yourself, saving on labor costs.

1.3. Essential Tools for VCDS Coding

To perform VCDS coding on your Audi S4, you’ll need a few essential tools:

• VCDS Interface Cable: This cable connects your car to your computer. CARDIAGTECH.NET offers high-quality VCDS interface cables for reliable connectivity.
• VCDS Software: You’ll need the official VCDS software installed on your computer.
• Laptop: A laptop with a USB port and Windows operating system is required.
• VCDS Codes List: A comprehensive list of VCDS codes specific to your Audi S4 model.

2. Comprehensive VCDS Codes List for Audi S4

Here’s a detailed VCDS codes list for the Audi S4, covering various customization options. Remember to use these codes with caution and consult reliable sources before making any changes.

2.1. Lighting Modifications

2.1.1. Disable Amber Corner Lights

This modification disables the amber corner lights on your Audi S4, giving it a cleaner, more streamlined appearance.

• Module: 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)

2.1.2. Disable LED ‘Wink’ on Turn Signal

This code ensures that the LED daytime running lights (DRLs) remain at full brightness when the turn signal is activated, preventing the ‘wink’ effect.

• Module: 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)

2.1.3. Enable Rear Tail Lights on with DRLs

This modification allows the rear tail lights to be illuminated along with the DRLs, improving visibility.

• Module: 09 – Cent. Elect.
• Coding: 07
• Long Coding Helper: Byte 2 Bit 7 – DRL’s via Tail Lights Active (1 = Active)

2.1.4. Enable Euro Parking Lights

Enable Euro parking lights that turn on the signal at night, providing additional visibility when parked.

• Module: 09 – Cent. Elect.
• Coding: 07
• Long Coding Helper: Byte 9 Bit 0 – Set to 1

2.1.5. Enable Fog Lamp to Come On with Turn Signal

This feature activates the fog lamp on the same side as the turn signal, enhancing visibility during turns.

• Module: 09 – Cent. Elect.
• Coding: 07
• Long Coding Helper: Byte 4 Bit 0 – Check the box or change :Bit 0 set to 1

2.1.6. Adjust LED Brightness

Adjust the brightness of your LED daytime running lights to your desired level.

• Module: 09 – Cent. Elect.
• Security Access: 16 (enter security code, e.g., 20113)
• Adaptation: 10
• Channel: 3
• Value: Set between 5 and 100

2.2. Convenience Features

2.2.1. Disable Seatbelt Chime

This code disables the annoying seatbelt chime, but always remember to wear your seatbelt for safety.

• Module: 17 – Instruments
• Coding: 07
• Long Coding Helper: Byte 0 Bit 2-4 – Seat Belt Warning inactive

2.2.2. Enable Automatic Gear Selection Shown in DIS

Display the current gear selection (D or S) in the Driver Information System (DIS).

• Module: 02 – Auto Trans
• Adaptation: 10
• Select: “Single Gear Display” from the top channel drop-down menu
• Select: “D on/S on” from the New value drop-down menu

2.2.3. Enable Release Parking Brake Without Foot on Brake

Allows you to release the parking brake without pressing the brake pedal.

• Module: 53 – Parking Brake
• Security Access: 16 (Enter code presented by program)
• Adaptation: 10
• Channel: 4
• Value: Set to 0

2.2.4. Enable Release Parking Brake Without Seatbelt

Release the parking brake even without wearing your seatbelt.

• Module: 53 – Parking Brake
• Security Access: 16 (Enter code presented by program)
• Adaptation: 10
• Channel: 7
• Value: Set to 0

2.2.5. Enable Remote Operation of Windows and Sunroof

Control your windows and sunroof remotely using the key fob.

• Module: 46 – Cent. Conv.
• Coding: 07
• Long Coding Helper: Byte 2 Bit 2 – Set to 1

2.2.6. Disable After-Wipe of Windscreen Wipers

Prevent the windscreen wipers from performing an additional wipe after using the washer fluid.

• Module: 09 – Cent. Elect.
• Coding: 07
• Long Coding Helper:
  • Dropdown: “x ** 8K1 955 119 ** WWS xxxx”
  • Byte 1 Bit 3 – Remove check mark (1 = active)

2.2.7. Disable “Lights are on” Warning

Turn off the warning sound when you open the door with the lights still on.

• Module: 09 – Cent. Elect.
• Coding: 07
• Long Coding Helper: Byte 5 Bit 3 – Set to 0 to disable “lights are on” warning when you open the door.

2.2.8. Disable Key Warning (Keyless Models)

Disable the warning message for keyless models when the key is not detected.

• Module: 46 – Central Conv.
• Coding: 07
• Long Coding Helper: Byte 9 Bit 7 set to 0 (Uncheck)

2.3. Driver Assistance Systems

2.3.1. Enable Adaptive Brake Lights

Activate the adaptive brake lights, which flash during emergency braking to warn other drivers.

• Module: 46 – Comfort System
• Coding: 07
• Long Coding Helper:
  • Byte 8 Bit 0 – Emergency Brake Flashing via Turn Lights active (1 = active)
  • Bit 1 – Emergency Brake Flashing via Brake Lights active (1 = active)

2.3.2. Enable Automatic Hill Hold Assist ‘Lite’

Enable the hill hold assist feature, which helps prevent the car from rolling back on inclines.

• Module: 03 – ABS brakes
• Security Access: 16 (Enter code presented by program)
• Coding: 07
• Long Coding Helper: Byte 1 Bit 6 set to 1 to enable hill hold assist.

2.3.3. Enable Reverse Mirror Tilt

Adjust the passenger-side mirror to tilt downwards when reversing, providing better visibility of the curb.

• Module: 52 Door Elect, Pass.
• Coding: 07
• Long Coding Helper: Byte 4 Bit 4 and Bit 2 set to 1

2.3.4. Set Audi Parking System – Switch OFF Speed

Adjust the speed at which the Audi parking system switches off.

• Module: 10 – Park/Steer Assist
• Adaptation: 10
• Channel: 23
• Value: Set to 20 (max value in km/h)

2.4. Infotainment and Display

2.4.1. Disable NAV & Phone Warning Messages

Remove the warning messages that appear when entering data into the navigation or phone system while driving.

• Module: 5F – Information Electr.
• Adaptation:
  • Channel 2: Set to 250
  • Channel 3: Set to 250

2.4.2. Enable Hidden Menu in MMI

Access the hidden menu in the Multi Media Interface (MMI) for advanced settings and diagnostics.

• Module: 5F – Information Electr.
• Adaptation: 10
• Channel: 6
• Value: Change 0 to 1
• Caution: Use this hidden menu at your own risk. Keep away from the “Bootloader”.

2.4.3. Enable Lap Timer

Activate the lap timer function in the instrument cluster.

• Module: 17 – Instruments
• Coding: 07
• Long Coding Helper: Byte 1 Bit 3 – Check the box for “Lap Timer active”

2.4.4. Enable Battery Meter

Display the battery voltage in the MMI.

• Hidden menu:
  • car
  • cardevextdevicelist
  • Battery: Enable
• Hidden menu:
  • car
  • carmenuoperation
  • Battery: Set to 5
• Reset MMI or:
  • 56 – Radio
  • Adaption
  • Channel 39, add 16 to your value

2.4.5. Enable DIS with Efficiency Program (MY2010+)

Enable the efficiency program in the Driver Information System (DIS) for models from 2010 onwards.

• Module: 17 – Instruments
• Adaptation: 10
• Channel: 77
• Value: Change 0 to 255

2.4.6. Enable Speed Through MMI

Display the vehicle speed in the MMI.

• Module: 56 – Radio
• Adaptation: 10
• Channel: 02
• Value: Set to 1
• Note: Does not work if NAV equipped.

2.4.7. Enable VIM on MMI

Enable Video in Motion (VIM) on the MMI, allowing video playback while driving.

• Module: 5F – Information Electr.
• Advanced ID: 1A
• Note: 1st Serial number
• Security Access: Enter Digits 6, 13, 10, 14, 11 of the 1st Serial number
• Adaptation: 10
• Channel: 48
• Value: Set to 255
• Reset MMI

2.4.8. Enable Import CDs to MMI’s HD

Enable the ability to import CDs to the MMI’s hard drive.

• Hidden menu: Main/Diagnose/Settings
• Import Media: Set to 4 of 4 “Copy/Ripping”

2.4.9. Adjust Consumption in DIS

Adjust the fuel consumption display in the DIS to match actual consumption.

• Module: 17 – Instruments
• Adaptation: 10
• Channel: 3
• Value: Change 100 to xxx (see samples below)
  • Sample 1: Calculation based on volume per distance (e.g., l/100km):
    • DIS: 9.3 l/100 km
    • Real: 9.8 l/100 km
    • (100 * 9.8 / 9.3 = 105.38)
    • Channel 3 will be changed from 100 to 105
  • Sample 2: Calculation based on distance per volume (e.g., MPG):
    • DIS: 23 MPG
    • Real: 24 MPG
    • (100 * 23 / 24 = 95.83)
    • Channel 3 will be changed from 100 to 96

2.5. Other Customizations

2.5.1. Enable Gauge Test/Needle Sweep

Activate the gauge test, which sweeps the instrument cluster needles upon starting the car.

• Module: 17 – Instruments
• Coding: 07
• Long Coding Helper: Byte 1 Bit 0 – Check the box for “Gauge Test/Needle Sweep active”

2.5.2. Enable TPMS

Enable the Tire Pressure Monitoring System (TPMS).

• Note: You need the 1AT ABS unit – check your stickers (1AS does not work)
• Hidden menu:
  • car
  • cardevicelist
  • RDK: Enable
• Hidden menu:
  • car
  • carmenuoperation
  • Tires Air Pressure Control: Set to 5
• Module: 03 – ABS Brakes
• Security Access: 16 (probably with login code: 61378)
• Coding: 07
• Long Coding Helper: Byte 1 Bit 3 – Tire Pressure Monitoring (PR-7K6) active (1 = active)
• The TPMS needs to be enabled in the Instrument Cluster:
  • Module: 17 – Instruments
  • Coding: 07
  • Long Coding Helper: Byte 4 Bit 0 – Tire Pressure Monitoring (TPMS) installed (1 = active)
• Reset MMI

2.5.3. Enable Auxiliary Ventilation

Enable the auxiliary ventilation system.

• Module: 5F – Information Electr.
• Coding: 07
• Long Coding Helper: Byte 6 Bit 1 – Set to 1
• Hidden menu:
  • car
  • cardevicelist
  • Auxiliary heating: Enable
• Module: 08 – Auto HVAC
• Coding: 07
• Long Coding Helper:
  • Byte 1 Bit 3 – Set to 1
  • Bit 4 – Set to 1

2.5.4. Set ADS to Specific Preset

Set the Audi Drive Select (ADS) mode to a specific preset (Comfort, Auto, Dynamic, or Individual).

• Module: 09 – Cent. Elect.
• Security Access: 16
• Adaptation: 10
• Channel:
  • 63: Set to 01 – Comfort, 02 – Auto, 03 – Dynamic, or 04 – Individual
  • 64: Set to 01 – Comfort, 02 – Auto, 03 – Dynamic, or 04 – Individual
  • 65: Set to 01 – Comfort, 02 – Auto, 03 – Dynamic, or 04 – Individual
  • 66: Set to 01 – Comfort, 02 – Auto, 03 – Dynamic, or 04 – Individual
• Note: All four channels need to be set to the same value.

2.5.5. Set Headlight Washer – Duration

Adjust the duration of the headlight washer.

• Module: 09 – Cent. Elect.
• Security Access: 16
• Adaptation: 10
• Channel: 6
• Value: Change to e.g., 500

2.5.6. Set Headlight Washer – Cycles

Adjust the number of cycles for the headlight washer.

• Module: 09 – Cent. Elect.
• Security Access: 16
• Adaptation: 10
• Channel: 26
• Value: Change to e.g., 10

2.5.7. Set Automatic Transmission Start Mode

Configure the automatic transmission to start in D or S mode.

• Module: 09 – Cent. Elect.
• Security Access: 10
• Adaptation: 10
• Channel: 64
• Values:
  • Stored Value = 218: Starting mode is always D
  • New Value = 00: Starting mode is determined by ADS selection at engine shutdown (Comfort and Auto=D, Dynamic=S, Individual=whatever you pick)
  • New Value = 03: Starting mode is always S regardless of ADS selection at engine shutdown (opposite of stock)
  • New Value = 11: Starting mode is S with all ADS settings at shutdown except Comfort where it’s D
  • New Value = 19: Starting mode is S with all ADS settings at shutdown except Auto where it’s D

3. Step-by-Step Guide to Using VCDS

Follow this step-by-step guide to safely and effectively use VCDS on your Audi S4.

3.1. Connecting VCDS to Your Car

1. Install VCDS Software: Download and install the VCDS software from the Ross-Tech website or CARDIAGTECH.NET.
2. Connect the Interface Cable: Plug the VCDS interface cable into your laptop’s USB port and the OBD-II port in your Audi S4 (usually located under the dashboard).
3. Turn on the Ignition: Turn on your car’s ignition, but do not start the engine.
4. Launch VCDS Software: Open the VCDS software on your laptop.
5. Test the Connection: Click on “Options” and then “Test” to ensure that the software can communicate with your car.

3.2. Accessing Control Modules

1. Select Control Module: On the main VCDS screen, click on “Select” to choose a control module.
2. Choose Module Number: Enter the module number you want to access (e.g., 09 for Central Electronics).
3. Open Coding: Click on “Coding – 07” to access the coding options for the selected module.

3.3. Using Long Coding Helper

1. Open Long Coding Helper: In the coding screen, click on “Long Coding Helper” to open a visual interface for modifying the coding.
2. Navigate Bytes and Bits: Use the Long Coding Helper to navigate through the bytes and bits of the coding string.
3. Make Changes: Check or uncheck the boxes corresponding to the features you want to enable or disable.
4. Apply Changes: Once you’ve made the desired changes, click on “Exit” and then “Do It!” to apply the new coding.

3.4. Adaptation Settings

1. Access Adaptation: From the main module screen, click on “Adaptation – 10” to access the adaptation settings.
2. Select Channel: Choose the channel you want to modify from the drop-down menu.
3. Enter New Value: Enter the new value for the selected channel.
4. Save Changes: Click on “Test” and then “Save” to apply the new adaptation setting.

3.5. Safety Precautions

• Backup Original Coding: Always record or backup your car’s original coding before making any changes.
• Use Reliable Sources: Only use VCDS codes from trusted sources to avoid damaging your car’s systems.
• Double-Check Settings: Always double-check the settings before applying any changes.
• Proceed with Caution: If you’re unsure about a particular setting, consult a professional technician.

4. Common Issues and Troubleshooting

Even with careful planning, issues can arise during VCDS coding. Here are some common problems and how to troubleshoot them.

4.1. Communication Errors

• Problem: VCDS cannot communicate with the car.
• Solution:
  • Ensure the interface cable is securely connected to both the laptop and the car.
  • Verify that the car’s ignition is turned on.
  • Check the USB port on your laptop.
  • Reinstall the VCDS software.

4.2. Incorrect Coding

• Problem: The car malfunctions after applying a VCDS code.
• Solution:
  • Revert to the original coding using the backup you created.
  • Double-check the VCDS code and ensure it is correct for your car model and year.
  • Consult a professional technician for assistance.

4.3. Module Not Responding

• Problem: A specific control module is not responding.
• Solution:
  • Check the module’s wiring and connections.
  • Ensure that the module is not damaged.
  • Try resetting the module by disconnecting the car’s battery for a few minutes.

4.4. VCDS Software Issues

• Problem: The VCDS software is crashing or not functioning correctly.
• Solution:
  • Reinstall the VCDS software.
  • Update the software to the latest version.
  • Check your laptop’s system requirements and ensure they are met.

5. Advanced VCDS Techniques

For experienced users, VCDS offers advanced techniques to further customize and optimize your Audi S4.

5.1. Using Security Access Codes

Some control modules require a security access code before you can make changes. These codes are usually specific to the module and can be found on Ross-Tech’s website or in the VCDS documentation.

1. Enter Security Access: In the module screen, click on “Security Access – 16”.
2. Enter Code: Enter the required security access code and click “Do It!”.

5.2. Reading and Clearing Fault Codes

VCDS can be used to read and clear fault codes, helping you diagnose and troubleshoot issues with your car.

1. Select Control Module: Choose the module you want to check for fault codes.
2. Read Fault Codes: Click on “Fault Codes – 02” to read the stored fault codes.
3. Clear Fault Codes: After addressing the issue, click on “Clear Codes – 05” to clear the fault codes.

5.3. Logging Data

VCDS allows you to log data from various sensors and systems in your car, which can be useful for performance tuning and troubleshooting.

1. Select Control Module: Choose the module you want to log data from.
2. Measuring Blocks: Click on “Measuring Blocks – 08” to select the data you want to log.
3. Start Logging: Click on “Log” to start recording the data.

6. Why Choose CARDIAGTECH.NET for Your VCDS Needs?

At CARDIAGTECH.NET, we understand the importance of having reliable tools and resources for maintaining and customizing your Audi S4. Here’s why you should choose us for your VCDS needs:

6.1. High-Quality VCDS Interface Cables

We offer high-quality VCDS interface cables that ensure reliable connectivity between your car and your laptop. Our cables are built to last and provide accurate data transmission.

6.2. Comprehensive Support and Resources

We provide comprehensive support and resources to help you get the most out of your VCDS system. Our team of experts is available to answer your questions and provide guidance.

6.3. Competitive Pricing

We offer competitive pricing on our VCDS interface cables and other diagnostic tools, making it affordable for you to maintain and customize your Audi S4.

6.4. Fast and Reliable Shipping

We offer fast and reliable shipping to ensure that you receive your VCDS tools as quickly as possible.

7. Maintaining Your Audi S4 with VCDS

Regularly using VCDS to diagnose and maintain your Audi S4 can help you keep it running smoothly and prevent costly repairs.

7.1. Regular Diagnostics

Perform regular diagnostics using VCDS to check for fault codes and identify potential issues before they become major problems.

7.2. Monitoring Performance

Use VCDS to monitor your car’s performance, including sensor data and engine parameters, to ensure it is running optimally.

7.3. Performing Maintenance

Use VCDS to perform maintenance tasks, such as resetting service reminders and calibrating sensors.

8. VCDS and Legal Considerations

While VCDS offers many customization options, it’s important to be aware of the legal considerations.

8.1. Compliance with Local Laws

Ensure that any modifications you make with VCDS comply with local laws and regulations. Some modifications, such as disabling safety features, may be illegal in certain areas.

8.2. Warranty Implications

Be aware that making modifications with VCDS may void your car’s warranty. Check with your dealer or warranty provider before making any changes.

9. Real-World Examples of VCDS Customization

Here are some real-world examples of how Audi S4 owners have used VCDS to customize their vehicles:

9.1. Enhancing Lighting

Many owners use VCDS to enhance their car’s lighting, such as enabling rear tail lights with DRLs and disabling amber corner lights.

9.2. Improving Convenience

VCDS is often used to improve convenience features, such as enabling remote operation of windows and sunroof and disabling the seatbelt chime.

9.3. Optimizing Performance

Some owners use VCDS to optimize their car’s performance, such as adjusting the throttle response and enabling launch control.

10. The Future of VCDS and Automotive Diagnostics

VCDS continues to evolve with new features and capabilities, making it an indispensable tool for automotive diagnostics and customization.

10.1. Advancements in VCDS Technology

Future advancements in VCDS technology will likely include improved diagnostic capabilities, more customization options, and enhanced integration with other automotive systems.

10.2. The Role of VCDS in Modern Automotive Repair

VCDS will continue to play a crucial role in modern automotive repair, providing technicians with the tools they need to diagnose and repair complex electronic systems.

10.3. Staying Updated with VCDS Developments

Stay updated with the latest VCDS developments by following Ross-Tech’s website, CARDIAGTECH.NET, and other automotive news sources.

11. Conclusion: Unleash Your Audi S4’s Potential with VCDS Codes

VCDS codes list is a powerful tool that allows you to unlock your Audi S4’s potential and personalize your driving experience. With the right codes and a reliable VCDS system from CARDIAGTECH.NET, you can optimize your car’s performance, enhance its features, and troubleshoot issues. Remember to use VCDS responsibly and always prioritize safety.

Ready to take control of your Audi S4? Contact CARDIAGTECH.NET today for all your VCDS needs. Our high-quality VCDS interface cables, comprehensive support, and competitive pricing make us the perfect partner for your automotive diagnostic and customization projects.

Don’t let your Audi S4 be just another car on the road. Make it your own with VCDS and CARDIAGTECH.NET. Contact us now at +1 (641) 206-8880 or visit our website at CARDIAGTECH.NET.

CARDIAGTECH.NET – Your Trusted Partner for Automotive Diagnostics and Customization

Address: 276 Reock St, City of Orange, NJ 07050, United States

12. Frequently Asked Questions (FAQ) About VCDS Codes List

1. What is VCDS and what does it do?

VCDS (Vag-Com Diagnostic System) is a software and hardware tool used for diagnosing, customizing, and modifying Volkswagen Audi Group (VAG) vehicles, including Audi. It allows users to access and change various control modules within the car.

2. Is VCDS safe to use on my Audi S4?

When used correctly and with reliable information, VCDS is generally safe. However, it’s crucial to back up your original coding and proceed with caution, as incorrect modifications can cause malfunctions.

3. Where can I find a reliable VCDS codes list for my Audi S4?

You can find VCDS codes lists on reputable automotive forums, specialty websites like CARDIAGTECH.NET, and Ross-Tech’s support pages. Always verify the codes from multiple sources before applying them.

4. Do I need any special tools to use VCDS?

Yes, you’ll need a VCDS interface cable, VCDS software, and a laptop with a USB port and Windows operating system.

5. Can VCDS void my car’s warranty?

Yes, making modifications with VCDS can potentially void your car’s warranty. Check with your dealer or warranty provider before making any changes.

6. What is the Long Coding Helper in VCDS?

The Long Coding Helper is a visual interface within VCDS that allows you to easily navigate and modify the coding strings of control modules. It provides a user-friendly way to check or uncheck boxes corresponding to various features.

7. How do I access the hidden menu in MMI using VCDS?

To access the hidden menu in MMI, use VCDS to modify the adaptation settings of the Information Electronics module (5F). Change the value of channel 6 from 0 to 1. Be cautious when using the hidden menu, as some options can cause issues if modified incorrectly.

8. What should I do if I encounter a communication error with VCDS?

If VCDS cannot communicate with your car, ensure the interface cable is securely connected, the car’s ignition is turned on, and the USB port is functioning correctly. You may also need to reinstall the VCDS software or check your laptop’s system requirements.

9. How can CARDIAGTECH.NET help me with VCDS?

CARDIAGTECH.NET offers high-quality VCDS interface cables, comprehensive support, and competitive pricing to help you get the most out of your VCDS system. Our team of experts can answer your questions and provide guidance.

10. Are there any legal considerations when using VCDS?

Yes, ensure that any modifications you make with VCDS comply with local laws and regulations. Some modifications, such as disabling safety features, may be illegal in certain areas.