Is The Foxwell NT301 OBD2 Code Reader Fuel Composition Reset Possible?

The Foxwell NT301 OBD2 code reader is a popular tool, but its ability to perform a fuel composition reset, particularly for flex-fuel vehicles experiencing high alcohol percentage issues, requires careful examination; however, tools with bidirectional capabilities, such as the Launch X431 CRP919E, can handle this reset, offering a temporary or long-term fix. At MERCEDES-DIAGNOSTIC-TOOL.EDU.VN, we help you explore diagnostic options, understand their capabilities, and find effective solutions for your vehicle’s needs. Understanding the proper tools and procedures can lead to better vehicle performance and fuel efficiency, making it essential to stay informed about advanced diagnostic solutions.

1. Understanding the Need for Fuel Composition Reset

What is the need for a fuel composition reset, and how does it relate to flex-fuel vehicles? A fuel composition reset is essential, especially in flex-fuel vehicles, because it recalibrates the engine control module (ECM) to recognize the correct ethanol percentage in the fuel. When the alcohol percentage reading is inaccurate, it can lead to significant performance issues, with the primary purpose of this reset being to correct these inaccuracies, ensuring the engine operates efficiently.

• Flex-Fuel Vehicles: Flex-fuel vehicles are designed to run on gasoline or a blend of gasoline and ethanol, up to 85% ethanol (E85). The ECM adjusts the engine’s parameters based on the detected ethanol content.
• Inaccurate Readings: Over time, or due to sensor issues, the ECM may misread the ethanol percentage. For instance, it might incorrectly think the vehicle is running on E85 when it is not.
• Performance Issues: An incorrect alcohol percentage reading can cause several problems:
  • Hard Starting: The engine may struggle to start, especially in cold weather.
  • Rich Fuel Mixture: The engine may receive an overly rich fuel mixture, leading to stumbling and strong fuel smells.
  • Reduced Gas Mileage: Fuel economy can significantly decrease.
  • Rough Running: The engine may run unevenly or roughly.

1.1. Common Causes of Inaccurate Readings

What are the common causes that lead to inaccurate fuel composition readings in vehicles? Several factors can contribute to these inaccuracies, making it important to diagnose and address the root cause effectively.

• Sensor Issues: The fuel composition sensor may be faulty or degraded, providing incorrect data to the ECM.
• Contaminated Fuel: Impurities or contaminants in the fuel can affect the sensor’s readings.
• Software Glitches: The ECM software may have glitches or bugs that cause miscalculations.
• Environmental Factors: Temperature changes and humidity can sometimes affect sensor performance.

1.2. Temporary vs. Long-Term Fixes

What is the difference between temporary and long-term fixes for fuel composition issues, and which one is more effective? Resetting the alcohol fuel density level is often considered a temporary fix, while addressing the underlying issue, such as replacing a faulty sensor, is a long-term solution.

• Temporary Fix: Resetting the alcohol fuel density level to zero using a scan tool can temporarily alleviate the symptoms. This forces the ECM to relearn the fuel composition, often resolving the immediate performance issues.
• Long-Term Fix: The TSB (Technical Service Bulletin) T-SB-0166-19 (https://static.nhtsa.gov/odi/tsbs/2019/MC-10170730-9999.pdf) provides a more permanent solution by addressing the root cause, which may involve replacing the fuel pump or recalibrating the ECM.
• Effectiveness: While a reset can provide immediate relief, the problem may return if the underlying issue is not resolved. A long-term fix aims to prevent the problem from recurring.

2. Understanding the Foxwell NT301 OBD2 Code Reader

What are the capabilities of the Foxwell NT301 OBD2 code reader, and what functions does it support? The Foxwell NT301 is a basic OBD2 code reader designed for reading and clearing diagnostic trouble codes (DTCs), providing essential diagnostic information. However, it lacks the advanced bidirectional control functions needed for a fuel composition reset.

• Basic Functionality: The Foxwell NT301 is primarily used to:
  • Read diagnostic trouble codes (DTCs).
  • Clear DTCs and turn off the check engine light.
  • View freeze frame data.
  • Retrieve vehicle information (VIN, CID, CVN).
  • Perform I/M readiness testing.
• Limitations: The NT301 does not support:
  • Bidirectional control (the ability to send commands to the vehicle’s modules).
  • Advanced functions like fuel composition reset, sensor calibration, or module programming.

2.1. What the Foxwell NT301 Can Do

What specific tasks can the Foxwell NT301 perform, and how can it assist in basic vehicle diagnostics? This tool is useful for identifying and clearing common engine-related issues, but its capabilities are limited to basic OBD2 functions.

• Reading and Clearing Codes: The primary function is to read and clear generic OBD2 codes, helping users identify and resolve simple issues.
• Freeze Frame Data: It allows users to view freeze frame data, which captures the engine’s operating conditions when a fault code was triggered.
• I/M Readiness: The tool can check the status of emissions-related systems, ensuring the vehicle is ready for an emissions test.

2.2. Limitations of the Foxwell NT301

What are the limitations of the Foxwell NT301 in terms of advanced diagnostic functions? The Foxwell NT301 lacks bidirectional capabilities, preventing it from performing advanced functions like fuel composition resets, which require sending commands to the vehicle’s computer.

• No Bidirectional Control: The most significant limitation is the absence of bidirectional control, which is necessary to perform resets, calibrations, and other advanced functions.
• Limited Special Functions: It does not support special functions such as ABS bleeding, throttle resets, or TPMS programming.
• Basic OBD2 Only: The tool is limited to basic OBD2 diagnostics and cannot access manufacturer-specific codes or systems.

3. Fuel Composition Reset: What Tools Are Needed?

What types of diagnostic tools are required to perform a fuel composition reset successfully? Performing a fuel composition reset requires a scan tool with bidirectional capabilities, allowing it to communicate with the vehicle’s ECM and send commands to reset the fuel density learning value.

• Bidirectional Scan Tools: These tools can both read data from and send commands to the vehicle’s modules, enabling advanced functions like resets and calibrations.
• Examples of Suitable Tools:
  • Launch X431 CRP919E: This tool is confirmed to perform fuel density learning value resets on Toyota vehicles.
  • Autel MaxiCOM MK808: Autel scanners often support bidirectional functions and special resets.
  • Snap-on Zeus: Snap-on professional diagnostic tools offer extensive bidirectional capabilities.

3.1. Bidirectional Scan Tools Explained

What are bidirectional scan tools, and how do they differ from basic OBD2 code readers? Bidirectional scan tools offer advanced diagnostic and control capabilities, allowing users to interact with the vehicle’s computer systems beyond simply reading codes.

• Two-Way Communication: Bidirectional tools can send commands to the vehicle’s modules to perform tests, calibrations, and resets, whereas basic OBD2 readers can only read data.
• Advanced Functions: These tools support a wide range of advanced functions, including:
  • Activating solenoids and relays.
  • Performing injector kill tests.
  • Resetting adaptive learning values.
  • Running automated system tests.
• Enhanced Diagnostics: They provide more in-depth diagnostic information and the ability to verify repairs.

3.2. Alternative Tools for Fuel Composition Reset

What alternative diagnostic tools can be used for fuel composition resets, and what are their pros and cons? Besides high-end scan tools, options like Techstream cables and professional diagnostic software can perform fuel composition resets, each with their own advantages and disadvantages.

• Techstream Cable: A Techstream cable with Toyota Techstream software is a popular option for Toyota vehicles.
  • Pros: Affordable, offers comprehensive diagnostic and programming capabilities for Toyota vehicles.
  • Cons: Can be complex to set up, may require a paid subscription for full functionality, and some versions may be unlicensed.
• Professional Diagnostic Software: Software like Autel PC Suite or Snap-on ShopStream Connect can be used with compatible diagnostic interfaces.
  • Pros: Extensive capabilities, user-friendly interfaces.
  • Cons: Higher cost, requires a compatible interface.

4. Step-by-Step Guide to Fuel Composition Reset

What are the steps involved in performing a fuel composition reset using a compatible scan tool? The process typically involves connecting the scan tool, navigating to the special functions menu, and selecting the fuel density learning value reset option, with specific steps varying by tool and vehicle.

1. Connect the Scan Tool:
   • Plug the scan tool into the OBD2 port, usually located under the dashboard.
   • Turn the ignition to the “on” position without starting the engine.
2. Navigate to the Special Functions Menu:
   • Select the vehicle’s make, model, and year in the scan tool menu.
   • Go to the “Diagnosis” or “Service” menu.
   • Look for “Special Functions,” “Control Unit Adaptations,” or a similar option.
3. Select Fuel Density Learning Value Reset:
   • In the special functions menu, find and select “Fuel Density Learning Value Reset,” “Alcohol Percentage Reset,” or a similar function.
   • Follow the on-screen instructions.
4. Confirm and Execute the Reset:
   • The scan tool may ask for confirmation before proceeding.
   • Confirm the reset and wait for the tool to complete the process, which usually takes a few seconds.
5. Verify the Reset:
   • After the reset, check the alcohol percentage reading to ensure it is reset to zero or the desired value.
   • Start the engine and monitor its performance to ensure the issues are resolved.

4.1. Using Launch X431 CRP919E for Fuel Reset

How can the Launch X431 CRP919E be used to perform a fuel composition reset on a Toyota Tundra? This tool allows users to reset the alcohol fuel density level, correcting issues caused by inaccurate fuel composition readings.

1. Connect and Update the Tool:
   • Connect the Launch X431 CRP919E to the OBD2 port.
   • Ensure the tool is updated to the latest version to access the necessary special functions.
2. Navigate to the Correct Menu:
   • Select “Diagnose” from the main menu.
   • Choose “Toyota” system selection.
   • Select “ECM-ECT (Engine).”
3. Perform the Reset:
   • Go to “Special Functions.”
   • Select and run “Fuel Density Learning Value Reset.”
   • The tool will reset the alcohol level to zero.
4. Verify the Results:
   • Check the alcohol fuel density level to confirm it is at zero.
   • Start the engine and verify that the starting and running issues are resolved.

4.2. Important Considerations During the Reset Process

What are some important considerations and precautions to keep in mind when performing a fuel composition reset? It’s crucial to follow the scan tool’s instructions carefully, ensure the vehicle’s battery is stable, and understand the potential risks involved to avoid damaging the vehicle’s systems.

• Follow Instructions Carefully: Always follow the scan tool’s on-screen instructions to avoid errors or damage to the vehicle’s systems.
• Battery Stability: Ensure the vehicle’s battery is fully charged and stable during the reset process to prevent interruptions.
• Potential Risks: Understand the potential risks involved, such as inadvertently altering other settings or causing temporary drivability issues.
• Backup Data: If possible, back up the vehicle’s ECM data before performing any resets or calibrations.

5. Identifying the Right Scan Tool for Your Needs

How can you identify the right scan tool for your diagnostic needs, especially for performing a fuel composition reset? Consider the tool’s compatibility with your vehicle, its bidirectional capabilities, and its ability to perform the specific functions you require.

• Vehicle Compatibility: Ensure the scan tool is compatible with your vehicle’s make, model, and year.
• Functionality: Check if the tool supports bidirectional control and the specific functions you need, such as fuel composition reset.
• Reviews and Recommendations: Read reviews and seek recommendations from other users or professional technicians.
• Budget: Consider your budget and choose a tool that offers the best value for your needs.

5.1. Comparing Scan Tool Features

What features should you compare when selecting a scan tool for fuel composition reset and other advanced diagnostics? Important features include bidirectional control, special functions support, vehicle coverage, ease of use, and update frequency.

Feature	Description	Importance
Bidirectional Control	Ability to send commands to the vehicle’s modules	Essential for performing resets, calibrations, and tests
Special Functions	Support for specific functions like fuel composition reset, ABS bleeding, TPMS programming, etc.	Determines the tool’s versatility and ability to perform advanced diagnostics
Vehicle Coverage	Range of vehicle makes, models, and years supported by the tool	Ensures the tool can be used on your vehicle and potentially on other vehicles
Ease of Use	User-friendly interface, intuitive navigation, and clear instructions	Affects the efficiency and accuracy of diagnostics
Update Frequency	Regular updates to add new features, vehicle coverage, and bug fixes	Keeps the tool current and capable of diagnosing the latest vehicles and systems
Display	Screen size, resolution, and clarity	Enhances the user experience and makes it easier to view diagnostic data
Data Logging	Ability to record and save diagnostic data for later analysis	Useful for tracking intermittent issues and comparing data over time
Wireless Connectivity	Ability to connect to Wi-Fi or Bluetooth for updates, printing, and remote access	Adds convenience and flexibility to the diagnostic process
Portability	Size and weight of the tool, battery life, and included accessories	Affects the tool’s suitability for mobile use or working in tight spaces
Customer Support	Availability of technical support, online resources, and user forums	Provides assistance when needed and helps users get the most out of the tool
Price	Cost of the tool and any subscription fees for updates or advanced features	Determines the tool’s value proposition and affordability

5.2. Scan Tool Recommendations for Flex-Fuel Vehicles

What are some recommended scan tools for diagnosing and servicing flex-fuel vehicles, particularly for fuel composition resets? The Launch X431 CRP919E, Autel MaxiCOM MK808, and Snap-on Zeus are excellent choices for their bidirectional capabilities and extensive vehicle coverage.

• Launch X431 CRP919E: Confirmed to perform fuel density learning value resets on Toyota vehicles, offering comprehensive diagnostic functions.
• Autel MaxiCOM MK808: Known for its bidirectional capabilities, wide vehicle coverage, and user-friendly interface, making it suitable for various diagnostic tasks.
• Snap-on Zeus: A professional-grade scan tool with extensive bidirectional control, advanced diagnostics, and comprehensive vehicle coverage, ideal for experienced technicians.

6. Common Issues and Troubleshooting

What are some common issues encountered during fuel composition resets, and how can they be resolved? Issues like communication errors, incorrect reset procedures, and recurring problems require careful troubleshooting to ensure a successful and lasting resolution.

• Communication Errors:
  • Cause: Loose connections, faulty cables, or software glitches.
  • Solution: Check all connections, update the scan tool software, and try a different cable.
• Incorrect Reset Procedure:
  • Cause: Not following the scan tool’s instructions correctly.
  • Solution: Carefully review the instructions and repeat the process, ensuring each step is followed accurately.
• Recurring Problems:
  • Cause: Underlying issues such as a faulty sensor or contaminated fuel.
  • Solution: Address the root cause by replacing the sensor or cleaning the fuel system.

6.1. Addressing Communication Errors

What steps can be taken to address communication errors during a fuel composition reset? Ensuring stable connections, updating software, and verifying compatibility are essential for resolving these errors.

1. Check Connections: Ensure the scan tool is securely connected to the OBD2 port and the cable is not damaged.
2. Update Software: Update the scan tool’s software to the latest version to fix potential bugs and improve compatibility.
3. Verify Compatibility: Ensure the scan tool is compatible with the vehicle’s make, model, and year.
4. Restart the Tool: Sometimes, simply restarting the scan tool can resolve communication issues.
5. Test with Another Vehicle: If possible, test the scan tool with another vehicle to determine if the issue is with the tool or the vehicle.

6.2. Handling Recurring Fuel Composition Issues

How should recurring fuel composition issues be handled to ensure a lasting solution? Identifying and addressing the underlying causes, such as faulty sensors or contaminated fuel, is essential for preventing the problem from recurring.

1. Check the Fuel Composition Sensor: Inspect the fuel composition sensor for damage or contamination and replace it if necessary.
2. Inspect the Fuel System: Check the fuel lines, fuel filter, and fuel injectors for clogs or contamination. Clean or replace them as needed.
3. Use Quality Fuel: Use high-quality fuel from reputable sources to avoid contamination.
4. Regular Maintenance: Perform regular maintenance, including fuel filter replacements, to keep the fuel system clean and functioning properly.
5. Consult a Professional: If the problem persists, consult a professional mechanic to diagnose and repair any underlying issues.

7. Benefits of Using the Right Diagnostic Tools

What are the benefits of using the right diagnostic tools for vehicle maintenance and repairs? Using the correct tools enhances diagnostic accuracy, saves time and money, and ensures repairs are performed effectively, contributing to overall vehicle reliability and performance.

• Enhanced Diagnostic Accuracy: Accurate diagnosis leads to effective repairs, reducing the likelihood of misdiagnosis and unnecessary part replacements.
• Time and Cost Savings: Identifying and resolving issues quickly saves time and money on labor and parts.
• Improved Vehicle Performance: Proper diagnostics and repairs ensure the vehicle runs smoothly and efficiently, optimizing performance and fuel economy.
• Preventative Maintenance: Regular diagnostics can identify potential issues before they become major problems, preventing costly repairs down the road.

7.1. Improving Vehicle Performance and Fuel Efficiency

How can using the right diagnostic tools improve vehicle performance and fuel efficiency? Proper diagnostics and timely repairs ensure the engine operates at its optimal parameters, maximizing performance and fuel economy.

1. Optimal Engine Operation: Accurate diagnostics ensure the engine operates within its designed parameters, optimizing combustion and performance.
2. Reduced Emissions: Proper diagnostics and repairs help reduce emissions, contributing to environmental sustainability.
3. Enhanced Fuel Economy: Identifying and resolving issues that affect fuel economy, such as incorrect fuel mixture or faulty sensors, can significantly improve MPG.
4. Smooth Running: Proper diagnostics and maintenance ensure the engine runs smoothly and reliably, providing a comfortable driving experience.

7.2. Preventing Costly Repairs

How can using diagnostic tools help prevent costly repairs in the long run? Regular diagnostics can identify potential issues early, allowing for timely repairs and preventing minor problems from escalating into major, expensive failures.

1. Early Issue Detection: Diagnostic tools can detect issues early, before they cause significant damage or failure.
2. Timely Repairs: Addressing issues promptly prevents them from escalating into major problems.
3. Preventative Maintenance: Regular diagnostics can identify maintenance needs, such as fluid changes or filter replacements, before they lead to costly repairs.
4. Extending Vehicle Life: Proper diagnostics and maintenance help extend the vehicle’s lifespan, providing long-term value.

8. Staying Updated with Diagnostic Technology

How can technicians and vehicle owners stay updated with the latest diagnostic technology and techniques? Continuous learning through training programs, industry publications, and online resources is essential for keeping up with advancements in automotive diagnostics.

• Training Programs: Participate in training programs offered by scan tool manufacturers, automotive associations, or vocational schools.
• Industry Publications: Read industry publications, such as trade magazines, journals, and online news sources, to stay informed about the latest diagnostic technologies and techniques.
• Online Resources: Utilize online resources, such as manufacturer websites, technical forums, and YouTube channels, to learn about new tools, procedures, and troubleshooting tips.
• Professional Associations: Join professional associations, such as the Automotive Service Association (ASA) or the National Institute for Automotive Service Excellence (ASE), to access training, resources, and networking opportunities.

8.1. The Importance of Continuous Learning

Why is continuous learning important in the field of automotive diagnostics? The automotive industry is constantly evolving, with new technologies and systems being introduced regularly, making continuous learning essential for staying competent and effective.

1. Technological Advancements: The automotive industry is rapidly advancing, with new technologies and systems being introduced regularly.
2. Evolving Diagnostic Techniques: Diagnostic techniques and procedures are constantly evolving to keep pace with technological advancements.
3. Staying Competitive: Continuous learning helps technicians stay competitive and provide high-quality service to their customers.
4. Improving Efficiency: Learning new diagnostic techniques can improve efficiency and reduce diagnostic time.

8.2. Resources for Learning About Automotive Diagnostics

What are some valuable resources for learning about automotive diagnostics and staying updated with the latest technologies? Online courses, industry publications, and professional associations offer valuable learning opportunities and resources for technicians and vehicle owners.

• Online Courses: Platforms like Coursera, Udemy, and Skillshare offer courses on automotive diagnostics, covering a wide range of topics and skill levels.
• Industry Publications: Trade magazines such as Automotive Engineering International, Motor Age, and Professional Technician provide valuable insights into the latest diagnostic technologies and techniques.
• Manufacturer Websites: Automaker websites often provide technical information, service bulletins, and training materials for their vehicles.
• Professional Associations: Organizations like ASE, ASA, and the Society of Automotive Engineers (SAE) offer training, certifications, and networking opportunities for automotive professionals.
• YouTube Channels: Many YouTube channels, such as ScannerDanner and EricTheCarGuy, offer educational videos on automotive diagnostics and repair.

9. MERCEDES-DIAGNOSTIC-TOOL.EDU.VN: Your Diagnostic Partner

How can MERCEDES-DIAGNOSTIC-TOOL.EDU.VN assist you with your vehicle diagnostic and repair needs? We offer expert advice, diagnostic tool recommendations, and comprehensive support to help you keep your vehicle running smoothly and efficiently, ensuring optimal performance and reliability.

• Expert Advice: Our team of experienced technicians can provide expert advice and guidance on diagnosing and repairing a wide range of vehicle issues.
• Diagnostic Tool Recommendations: We can recommend the best diagnostic tools for your specific needs and budget, ensuring you have the right equipment for the job.
• Comprehensive Support: We offer comprehensive support, including troubleshooting tips, repair procedures, and product assistance, to help you get the most out of your diagnostic tools.
• Quality Products: We offer a wide selection of high-quality diagnostic tools from trusted brands, ensuring reliability and performance.

9.1. Services Offered by MERCEDES-DIAGNOSTIC-TOOL.EDU.VN

What specific services does MERCEDES-DIAGNOSTIC-TOOL.EDU.VN offer to help vehicle owners and technicians? We provide diagnostic support, tool recommendations, and repair guidance to ensure you have the knowledge and resources to maintain and repair your vehicle effectively.

• Diagnostic Support: Assistance in diagnosing vehicle issues, interpreting diagnostic codes, and developing repair strategies.
• Tool Recommendations: Guidance on selecting the right diagnostic tools for your specific needs and budget.
• Repair Guidance: Step-by-step instructions and technical information for performing repairs and maintenance tasks.
• Product Assistance: Support with using and troubleshooting diagnostic tools and equipment.

9.2. Contact Us for Expert Assistance

How can you contact MERCEDES-DIAGNOSTIC-TOOL.EDU.VN for expert assistance with your vehicle diagnostic and repair needs? Contact us via phone, email, or visit our website for personalized support and guidance from our team of experienced technicians.

• Phone: Call us at +1 (641) 206-8880 for immediate assistance.
• WhatsApp: Contact us on WhatsApp at +1 (641) 206-8880 for quick support and inquiries.
• Website: Visit our website at MERCEDES-DIAGNOSTIC-TOOL.EDU.VN for more information about our services and products.
• Address: Visit us at 789 Oak Avenue, Miami, FL 33101, United States, for in-person assistance.

10. FAQ About Fuel Composition Reset

10.1. What is the best diagnostic tool for Mercedes?

The best diagnostic tool for Mercedes depends on your needs. For basic tasks, a simple OBD2 scanner might suffice, but for advanced diagnostics, coding, and programming, a professional-grade tool like the Autel MaxiSys MS906BT or the Mercedes-Benz Star Diagnostic System is recommended.

10.2. How do I unlock hidden features on my Mercedes?

Unlocking hidden features on a Mercedes typically involves coding or programming the vehicle’s control modules. This can be done using specialized diagnostic tools like Vediamo or XENTRY Developer mode. It’s crucial to have a good understanding of the vehicle’s systems and coding procedures to avoid causing issues.

10.3. How often should I service my Mercedes?

Mercedes-Benz recommends servicing your vehicle every 10,000 miles or once a year, whichever comes first. This includes oil changes, filter replacements, and inspections of various vehicle systems.

10.4. What causes a high alcohol percentage reading in a flex-fuel vehicle?

A high alcohol percentage reading can be caused by a faulty fuel composition sensor, contaminated fuel, or software glitches in the engine control module (ECM).

10.5. Can I use the Foxwell NT301 to reset the fuel composition on my flex-fuel vehicle?

No, the Foxwell NT301 is a basic OBD2 code reader and does not have the bidirectional capabilities needed to perform a fuel composition reset.

10.6. What is a bidirectional scan tool?

A bidirectional scan tool is a diagnostic tool that can both read data from and send commands to the vehicle’s modules, enabling advanced functions like resets, calibrations, and tests.

10.7. What are the symptoms of an incorrect fuel composition reading?

Symptoms include hard starting, rough running, reduced gas mileage, and a strong fuel smell.

10.8. Is resetting the fuel composition a permanent fix?

Resetting the fuel composition is often a temporary fix. The underlying issue, such as a faulty sensor, should be addressed for a permanent solution.

10.9. What tools are needed for a fuel composition reset?

You need a bidirectional scan tool that supports the fuel density learning value reset function, such as the Launch X431 CRP919E or Autel MaxiCOM MK808.

10.10. Where can I find expert assistance for diagnosing and repairing my vehicle?

You can contact MERCEDES-DIAGNOSTIC-TOOL.EDU.VN for expert advice, diagnostic tool recommendations, and comprehensive support. Call us at +1 (641) 206-8880 or visit our website at MERCEDES-DIAGNOSTIC-TOOL.EDU.VN.