Autel MD806 Pro: Your Ultimate Car Diagnostic Tool?

In the evolving world of vehicle maintenance, having the right diagnostic tool can transform a frustrating guessing game into a straightforward repair job. For both seasoned mechanics and enthusiastic DIYers across the UK, the Autel MaxiDiag MD806 Pro has emerged as a compelling option. But is it truly as good as the hype suggests? Let's delve deep into its capabilities, user experiences, and what makes it a standout choice, or perhaps, where it falls short.

It's important to clarify from the outset that the Autel MD806 Pro, often found through online retailers, is functionally identical to the Autel MaxiDiag MD808 Pro sold in physical stores. Despite their differing appearances, they boast the same internal capabilities and software. So, any insights or reviews pertaining to the MD808 Pro can be directly applied to the MD806 Pro, ensuring you're getting the same powerful diagnostic experience regardless of where you purchase it.

Understanding the Autel MD806 Pro / MD808 Pro

The Autel MD806 Pro, or its twin the MD808 Pro, is a robust and user-friendly diagnostic scanner designed to provide comprehensive insights into your vehicle's health. It’s built for modern vehicles, supporting all OBD2 compliant cars manufactured from 1996 onwards, covering a vast range of domestic, European, and Asian makes and models. Its compact and sturdy design makes it a practical tool for any garage or even on-the-go diagnostics.

Key Features and Comprehensive Capabilities

What truly sets the MD806 Pro apart is its impressive array of features that cater to a wide spectrum of diagnostic needs:

• All System Diagnostics: Unlike basic OBD2 scanners that only read engine codes, the MD806 Pro offers all system diagnostics. This means it can access and scan virtually every electronic system and subsystem in your vehicle. This includes the Engine, Automatic Transmission, Anti-lock Braking System (ABS), Supplemental Restraint System (SRS/Airbag), Oil service light reset, Electronic Parking Brake (EPB), Suspension, Audio systems, Immobiliser (IMMO), Air Conditioning, Diesel Particulate Filter (DPF), Automatic Headlight, Adaptive Cruise Control (ACC), Car Radio Audio, Door Windows, and many more. This comprehensive scan helps pinpoint faulty systems and retrieve related Diagnostic Trouble Codes (DTCs), eliminating guesswork.
• Seven Essential Service Functions: Beyond just reading codes, the MD806 Pro provides crucial service functions that are often dealership-only tasks. These include:
  • Oil Reset: Resetting the oil service light after an oil change.
  • Electronic Parking Brake (EPB) Release: Safely disengaging the EPB for brake pad replacement.
  • Steering Angle Sensor (SAS) Calibration: Calibrating the steering angle sensor after steering component replacement.
  • Diesel Particulate Filter (DPF) Service: Performing regeneration or reset for DPF systems.
  • Battery Management System (BMS) Service: Registering new batteries to the vehicle's ECU.
  • Throttle Matching: Relearning the throttle body after replacement or cleaning.
  • A/F Adjustment: Adjusting the Air/Fuel ratio for optimal performance.
• Full OBDII Modes Support: For everyday repair work, the scanner supports all 10 OBD-II test modes. This covers standard functions like reading and clearing generic and manufacturer-specific codes, viewing freeze frame data, I/M readiness status, O2 sensor test results, on-board monitor tests, and component tests.
• Integrated DTC Lookup Library: One of the most user-friendly features is the built-in DTC lookup library. If a code appears, you don't need to consult an external manual or search online. The scanner provides an in-depth explanation of the error code's meaning, simplifying the diagnostic and repair process significantly.
• Live Data Graphing: For those who love to see the mechanics in action, the MD806 Pro offers live data graphing. This allows you to view sensor operation in real-time, not just as numbers but also as dynamic graphs. This visual representation is invaluable for identifying erratic sensor behaviour or performance issues that might not trigger a fault code immediately.
• Data Playback and Printing: The scanner allows you to record and review live data from previous tests. Furthermore, you can print diagnostic reports via your PC using the 'Maxi PC Suite' software. This feature is particularly useful for sharing complex diagnostic information with a professional mechanic, ensuring they have a clear understanding of the vehicle's issues without miscommunication.
• Extensive Vehicle Coverage: Compatibility is a strong suit, with the MD806 Pro working on a wide range of OBD2 compliant vehicles from 1996 to the present day.
• Multilingual Support: Catering to a diverse user base, the device supports 15 languages, including English, French, German, Spanish, Italian, and more.

Autel MD806 Pro vs. MD808 Pro vs. MD802: A Comparison

Given the various Autel models on the market, it's natural to wonder how the MD806 Pro/MD808 Pro stacks up against its siblings, particularly the MD802. Here's a quick comparison:

As evident from the table, the MD806 Pro / MD808 Pro is a significantly more advanced and capable tool than the MD802. While the MD808 (non-Pro) shares some hardware with the Pro version, the 'Pro' moniker denotes a much more powerful built-in software system that unlocks all system diagnostics and a wider array of special functions.

Real-World User Experiences and Feedback

Feedback from users, especially DIYers, consistently highlights the MD806 Pro's effectiveness. One non-professional user expressed immense satisfaction, stating it's the "ultimate tool" for anyone interested in their vehicle's operation or seeking peace of mind for clearing codes. They praised its performance on vehicles ranging from a 10-year-old Japanese car to a 1-year-old German car, noting its 'charm' and the absence of faults on the older vehicle.

The live data graphing feature receives particular acclaim from tech enthusiasts, who appreciate the visual representation of sensor data as curves, making complex diagnostics more engaging and intuitive. The ability to see sensors operate in real-time and plot them on a graph is frequently described as "invaluable" for diagnosing issues like ABS problems.

Specific examples of successful use include:

• TPMS Reset: Users have successfully navigated the menu to find TPMS functions under 'Diagnostic' -> '2 Control Unit' -> '13 TPMS', allowing them to accurately set tyre pressures and clear related alerts.
• ABS Issue Diagnosis: The tool effectively handles ABS diagnostics, allowing users to identify and clear trouble codes related to the braking system.

Compared to its predecessor, the MD802, users report that the MD806 Pro/MD808 Pro offers a bigger screen, more memory (16GB), and noticeably faster scanning speeds across all systems, making the diagnostic process more efficient.

Navigating Software Updates and Support

Like any advanced electronic device, software updates are crucial for the MD806 Pro to maintain compatibility with new vehicle models and fix potential bugs. Creating an Autel account and using the 'Maxi PC Suite' software is essential for downloading and applying these updates.

Early adopters of the MD808 Pro (and by extension MD806 Pro) sometimes encountered initial hurdles with updates. Units pre-loaded with older software versions (e.g., v1.0) might require updating the firmware via a Micro SD Card reader before USB updating becomes available. Subsequent updates, like v1.6, have resolved USB connectivity issues with newer operating systems like Windows 10, demonstrating Autel's commitment to continuous improvement.

A significant point of contention for users has been the clarity around "free lifetime updates." While some product descriptions might suggest this, many users have reported that free software updates are typically provided for 1 to 3 years, after which a subscription fee may apply. This discrepancy is something potential buyers should be aware of to manage expectations.

Ensuring you have a genuine Autel scanner is also important. Always purchase from an authorised dealer. Each Autel tool has a unique serial number that must be registered with Autel for updates and warranty. If registration fails, it's a strong indicator of a counterfeit product, though Autel generally has a strong reputation for product authenticity.

Potential Limitations and Considerations

While the Autel MD806 Pro is a highly capable tool, it's not without its minor drawbacks:

• Graphical Display Lag: When graphing multiple sensors simultaneously, some users have noted a 5-8 second delay when switching between text and graphical displays, or when merging graphs. While not a huge deal, it can lead to accidental double-button presses if unaware of the delay.
• Printing Limitations: The printing function, while helpful for text-based reports, currently doesn't support graphical content, and text formatting can be basic.
• New Vehicle Model Support Delay: A common challenge with lower-priced scanners is the delay in supporting the absolute latest car models. Autel, like other brands, needs time (often at least a year) to develop and integrate new car model programs into the scanner's software. So, if you own a very recent model, you might need to wait for updates or consider a significantly more expensive tool with a paid subscription for immediate compatibility.
• Not Bi-Directional: At its price point, the MD806 Pro is primarily a diagnostic and service reset tool. It is not a bi-directional scanner, meaning it cannot actively control vehicle components (e.g., activating solenoids, performing active tests) like higher-end professional tools can. For functions like bleeding ABS systems or comprehensive performance adjustments, more advanced models like the Autel MX808 or MK808 might be required.

Who Is the Autel MD806 Pro For?

The Autel MD806 Pro / MD808 Pro is an excellent investment for a diverse range of users:

• DIY Enthusiasts: For car owners who want to understand their vehicles better, perform basic diagnostics, clear codes, and save money on garage visits.
• General Repair Shops: Perfect for service writers and technicians needing quick, comprehensive diagnostics for a wide range of vehicles.
• Body Shops: Ideal for checking and clearing codes related to impact sensors or other systems post-repair.
• Used Car Dealerships: Useful for pre-purchase inspections and ensuring vehicles are fault-free before sale.
• Brake Facilities, DPF Repair Shops, Transmission Repair Shops: Specialised shops will benefit from its specific service functions for these systems.

Frequently Asked Questions (FAQs)

Q1: What advantages does the Autel MD808 Pro have over the MD802?

The MD808 Pro is significantly more advanced than the MD802. The MD808 Pro supports reading and clearing trouble codes, controlling and testing BMS, SAS, and DPF systems, and resetting steering angle sensor (SAS) functionality. These functions are unavailable on the MD802, making the MD808 Pro a far more comprehensive tool.

Q2: Can the MD808 Pro bring up Transfer Case codes?

Yes, the MD808 Pro can read and erase codes on various systems, including the Engine, Transmission, SRS, and ABS systems, and it does support transfer case codes, along with many other special functions.

Q3: Will this unit interface with all modules and electronic controls on a Toyota Prius, specifically for metering in coolant and bleeding brakes?

The MD808 Pro can work on your Toyota Prius for the four core systems (Engine, Transmission, ABS, SRS). However, for accessing all vehicle systems or specific functions like metering in coolant and bleeding brakes, you would need a more advanced tool like the Autel MK808.

Q4: What are the differences between the Autel MD808 Pro and the MD808 (non-Pro)?

While the MD808 and MD808 Pro share similar hardware, the MD808 Pro features a more powerful built-in software system. The MD808 can only access Engine, Transmission, ABS, and Airbag (SRS) systems, whereas the MD808 Pro supports Read/Clear Codes and Live Data functions for ALL systems.

Q5: Can the MD808 Pro bleed the ABS system on a Mercedes-Benz GL550?

The MD808 Pro supports reading and clearing all codes in all modules. However, it does not support advanced functions like brake bleeding. For ABS bleeding functions, you would typically need a higher-level tool such as the Autel MX808.

Q6: What types of shops would benefit from using the Autel MaxiDiag MD808 Pro?

The MD808 Pro is ideal for general repair shops (especially for service writers), body shops, used car dealerships, general auto repair shops, brake facilities, DPF auto repair shops, and transmission repair shops due to its comprehensive diagnostic and service capabilities.

Q7: How can I verify if my Autel scanner is genuine?

To ensure authenticity, always purchase your Autel scanner from an authorised dealer. Every genuine Autel scan tool comes with a serial number. You must register this device with Autel to receive free software updates and warranty support. If you attempt to register your code reader and it fails, it's a strong indication that the device may be counterfeit. Autel is a reliable company, and encountering a fake product is rare if purchased from legitimate sources.

Q8: Does the Autel MD808 Pro offer free lifetime updates?

Autel's marketing on this point can be unclear. While some descriptions may mention 'free lifetime updates,' most users report that free software updates are typically provided for 1 to 3 years. After this period, you will generally need to pay for further updates and upgrades. It's advisable to clarify this with your seller before purchase.

Q9: Can the MD808 Pro help adjust vehicle performance for fuel economy?

The MD808 Pro can assist by identifying faulty fuel injectors and reading fuel trim data, which are aspects related to fuel economy. However, if you're looking for a scanner that allows you to access the onboard computer to directly adjust vehicle performance settings to maximise fuel economy, you would typically need a more advanced and higher-budget scanner, such as the Autel MX808.

Q10: Why might the MD808 Pro not link up to a new 2019 Toyota Tacoma (or other very new models)?

This is a common limitation for mid-range scanners. If you purchase the most recent car models, lower-priced scanners like the Autel MD808 Pro may not support them immediately. Autel, and indeed all scanner brands, require time (often at least one year) to develop and include the necessary programming for the latest car models into their scanner software. For immediate compatibility with brand-new vehicles, you would typically need to invest in a much more expensive reader, often with a paid subscription service.

Conclusion

The Autel MD806 Pro, effectively the MD808 Pro in a different guise, stands out as an exceptionally capable and affordable diagnostic tool for the UK market. Its ability to perform all system diagnostics, coupled with a suite of essential service functions and live data graphing, makes it an invaluable asset for anyone keen to understand and maintain their vehicle. While it has minor limitations, such as occasional lag during complex graphing and the need to be realistic about 'lifetime' updates and support for the very latest vehicle models, its overall performance and comprehensive feature set offer tremendous value. For DIYers seeking peace of mind, or small workshops needing a reliable, broad-coverage scanner, the Autel MD806 Pro is undoubtedly a strong contender, capable of saving you time, money, and trips to the garage.

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