Autel offers a wide variety of scanner models, ranging from simple code readers to advanced flagship models. They cater to both DIYers seeking code reading and clearing, and experts requiring advanced features like ECU programming. So, how do consumers choose a scanner?
Today we will mainly compare the code reader scanners among Autel scanners. These scanners are all handheld OBD II scanners. They are all small and portable. So what are the differences in their functions? Let's take a look!
Autel Code Reader Listings for Sale
| Autel Scanner Series | Item | Price |
| Autel MaxiScan Series | MS300 | $17.99 |
| MS309 | $18.99 | |
| Autel MaxiLink Series | ML519 | $51.00 |
| ML629 | $99.00 | |
| Autel AutoLink Series | AL519 | $56.00 |
| AL619 | $99.00 | |
| Autel Maxicheck Series | Maxicheck Pro | $199.00 |
| Autel MaxiDiag Series | MD806 | $143.00 |
| MD806 Pro | $185.00 | |
| MD808 Pro | $199.00 | |
| MD906 Pro | $275.00 | |
| MD909 Pro | $329.00 |
Overview of Autel OBD II Coder Readers
Autel OBD II code readers have the above-mentioned series of models. Each series has different functions and covered vehicle systems. They are gradually developing in a more professional direction, with more and more comprehensive functions and a wider range of covered vehicles.
Autel MaxiScan Series
The Autel MaxiScan series, sold on the official authorized dealer OBDPRICE website, includes two scanners: the MS300 and the MS309. These two OBD II scanners were Autel's earliest OBD II readers. At the time, their functionality was relatively simple, making them suitable for DIYers who only needed basic code reading and clearing capabilities.
Autel MS300
Autel MS300 Quickly find the cause of your vehicle’s check engine light with this easy-to-use, plug-in and scan code reader.
Autel MS309
Autel ms309 quickly scan and define vehicle DTCs, ability to view Freeze Frame Data, check I/M Readiness and monitor status.
Autel MaxiLink/AutoLink Series
As the earliest handheld car diagnostic tool launched by Autel, it only supports reading and clearing codes for OBD2 faults. Its advantages are small and portable, and cheap price. It is very friendly for individual enthusiasts and small repair shops.
The functions of the two Autel scanners with the same series number, Autel MaxiLink Series and Autel AutoLink Series, are exactly the same. The two series were originally created to distinguish between online and offline channels, so I will explain these two series together.
The Autel AL/ML519 OBD II scanners are designed for reading and clearing engine module codes. They support all 10 modes of OBD II testing, including freeze frame, data stream, and check I/M readiness status.
The Autel Maxidiag MD808 Pro and AL619 have been further upgraded based on the previous generation. From only being able to diagnose the engine system to supporting the diagnosis of four systems: ABS, SRS, Engine, and Transmission, the diagnostic coverage is wider and can solve more problems.
Autel AL519
Autel AutoLink AL519 OBDII / CAN Scanner is an enhanced car engine scanner that supports all 10 modes of OBDII test for a complete diagnosis and turn off Chck Engines Light(MIL).
Autel MaxiLink ML629
Autel MaxiLink ML629 is an ideal OBD2 scanner for professionals and DIYers who are looking forward to reading and erasing DTCs for ABS, SRS, Engine, and Transmission on most 1996 and newer major vehicle models.
Autel Maxicheck Series
This series features only one Autel OBD II scanner: the Autel Maxicheck Pro. This scanner can perform services such as inspections and mileage resets, oil light resets, and battery maintenance.
It can also view freeze frame data to review the vehicle's operating parameters when a fault code was detected. ABS and SRS systems are covered on over 50 vehicle models. The Maxicheck Pro also features various diagnostic and special features, such as ABS bleed, airbags, and electronic parking brakes, though these are not universally applicable.
Autel Maxicheck Pro
$199.00
ABS Brake Auto Bleeding OBD2 Scan Tool with Airbag, EPB, SAS, BMS, Oil Reset Services for Specific Vehicles
Shop NowAutel MaxiDiag Series
Autel's MaxiDiag series includes five OBB II scanners: MD806, MD806 Pro, MD808 Pro, MD906 Pro, and MD909 Pro.
MD808/806 Series
These two series are early Autel scanners. While the MD806 only supports diagnosis of four systems, the other two offer full system diagnostics, including support for all OBD II protocols, all 10 test modes, Enhanced OBD II Mode 6, and multiple languages.
Furthermore, they support service functions such as oil reset, electronic parking brake, adaptive cruise control, battery management system, emission control device, and throttle control.
Autel MaxiDiag MD806
OBD2 Scanner | ABS/SRS/Transmission/Engine 4 System | BMS/EPB/SAS/Oil Reset/DPF/Throtte Reset
Autel Maxidiag MD808 Pro
Code Reader & Scanner MD808P OBD2 Diagnostic Tool for All System Diagnoses/ BMS / Oil Reset/ SRS/ EPB/ DPF/ SAS Reset
MD906/909 Pro
These two Autel scanners are the latest professional-grade bluetooth OBD 2 scanners released in 2025. They are a further upgrade to the MD808Pro, expanding service functions to eleven items.
They also switch from button operation to touchscreen operation for greater convenience and an enhanced user experience. Furthermore, they support the CAN FD protocol, further expanding vehicle coverage and enabling diagnosis of newer vehicles.
Autel MaxiDiag MD906 Pro
$275.00
Autel MaxiDiag MD906 Pro | 2025 Newest Professional Scan Tool | Enhanced Mode 6 Diagnostics | All System AutoScan | Support 11 service functions | Support OBDII protocols & all 10 OBDII test modes
Shop NowNote: The MD909Pro is currently out of stock. You might consider purchasing the MD906Pro, which has similar features with only minor differences. Subscribe to our email newsletter and we'll notify you as soon as the MD909Pro arrives.
Autel Scanners Comparison Chart: OBD II Code Readers
Autel MaxiScan MS300/ MaxiScan MS309
| Model | ||
| MS300 | MS309 | |
| Item Weight | 226 grams | 249 grams |
| Read & Clear Codes | √ | √ |
| I/M Readiness | √ | √ |
| Freeze Frame Data | / | √ |
| O2 sensor Test | √ | √ |
| Evap System Test | √ | √ |
| Vehicle Information | √ | √ |
| Retrieve Generic Codes, Manufacturer Specific Code, Pending Codes | √ | √ |
| Turn Off Check Engine Light | √ | √ |
| Support CAN (Controller Area Network) | √ | √ |
| DTC Lookup | √ | √ |
| Engine | √ | √ |
| Fuel System | √ | √ |
| Ignition System | / | √ |
| Vehicle Compatibility | All 1996 and newer cars, SUV and 12V Diesel that are OBD2 compliant except motor home | All 1996 and newer cars & light trucks that are OBD2 compliant |
Autel MaxiLink/AutoLink Series
| Model | AL519/ML519 | AL619 | ML629 |
| Live data | √ | √ | √ |
| Read & erase DTCs | √ | √ | √ |
| Retrieve the VIN | √ | √ | √ |
| Freeze frame | √ | √ | √ |
| I/M readiness status | √ | √ | √ |
| C.A.N. capability | √ | √ | √ |
| Data stream | √ | √ | √ |
| AutoVIN for Quick DTC definition | / | / | √ |
| Vehicle information | √ | √ | √ |
| On-screen DTC definitions | √ | √ | √ |
| Code lookup function on tool & printing capabilities | √ | √ | √ |
| DTC cause/tips | √ | √ | √ |
| Bi-directional testing + Advanced Mode 6 | √ | √ | √ |
| I/M readiness key | √ | √ | √ |
| ABS diagnose | / | √ | √ |
| SRS diagnose | / | √ | √ |
| Transmission diagnose | / | / | √ |
| Check engine light | √ | √ | √ |
| Oil light reset | √ | √ | √ |
| EVAP codes | √ | √ | √ |
Autel MaxiCheck Pro/ MaxiDiag 806/808 Series
| Model | MD806 | MD806 Pro | MD808 Pro | Maxicheck Pro |
| OBDII Diagnosis | ||||
| Engine System | √ | √ | √ | / |
| Transmission System | √ | √ | √ | / |
| Anti-lock Braking System | √ | √ | √ | √ |
| Supplemental Restraint System | √ | √ | √ | √ |
| Electrical Park Brake System | / | √ | √ | / |
| Tire Pressure Monitoring System | / | √ | √ | / |
| Steering System | / | √ | √ | / |
| Air Conditioning System | / | √ | √ | / |
| Battery Management System | / | √ | √ | / |
| Chassis System Division | / | √ | √ | / |
| Brake Assist System | / | √ | √ | / |
| Security System | / | √ | √ | / |
| Reset Services | ||||
| Oil Service Reset | √ | √ | √ | √ |
| SAS Reset | √ | √ | √ | √ |
| EPB Service | √ | √ | √ | √ |
| BMS Reset | √ | √ | √ | √ |
| DPF Reset | √ | √ | √ | √ |
| Throttle Adaptation | √ | √ | √ | / |
| Adjust A/F | √ | √ | √ | / |
Autel MaxiDiag MD906 PRO/ MaxiDiag MD909 PRO
| Basic | Item | MD906 Pro | MD909 Pro |
| Price | $275 | $329 | |
| Hardware | Processor | Quad-core processor (1.5 GHz) |
Quad-core processor (1.5 GHz) |
| Screen | 5.5-inch | 5.5-inch | |
| Resolution | 1280 x 720 | 1280 x 720 | |
| Battery | 5000mAh | 5000mAh | |
| Memory | 2 GB RAM & 64 GB ROM | 2 GB RAM & 64 GB ROM | |
| Connectivity | Wi-Fi USB Type-C Bluetooth |
Wi-Fi USB Type-C Bluetooth |
|
| VCI | V150 Lite | V150 Lite | |
| Weight | 368 g (0.8 lb.) | 368 g (0.8 lb.) | |
| Software | Operating System | Android 9.0 | Android 9.0 |
| vehicle System Support | All System | All System | |
| Read and Clear Codes | ✔ | ✔ | |
| Live Data | ✔ | ✔ | |
| Freeze Frame | ✔ | ✔ | |
| I/M Readiness | ✔ | ✔ | |
| vehicle Coverage | Current year vehicle of Asia, Europe, America,China |
Current year vehicle of Asia, Europe, America,China |
|
| Security Gateway | FCA, SFD, etc | FCA, SFD, etc | |
| CAN FD | ✔ | ✔ | |
| Update | Lifetime of tool | Lifetime of tool | |
| Service Fuctions |
Oil Reset | ✔ | ✔ |
| EPB | ✔ | ✔ | |
| TPMS | ✔ | ✔ | |
| BMS | ✔ | ✔ | |
| DPF | ✔ | ✔ | |
| SAS | ✔ | ✔ | |
| Throttle | ✔ | ✔ | |
| AFS Headlamp | ✔ | ✔ | |
| Break Bleeding | ✔ | ✔ | |
| Injector | ✔ | ✔ | |
| A/F | ✔ | ✔ | |
| Extended Fuctions |
Battery Test | ✘ | ✔(With BT506) |
Which Autel Scanner Fits Your Needs
- Choose Autel MS300/MS309: If you just want a simple scanner that can read and clear codes without any other features and only need to diagnose your vehicle's engine system, you can choose these two Autel OBD2 scanners. They are affordable and can meet your basic needs.
- Choose Autel AL/ML Series: If you need more diagnostic functions and need to diagnose faults in the transmission system, ABS, etc. in addition to the engine, this series of Autel scanners will be more suitable for you. It is also more suitable for small repair shops that do not require advanced functions.
- Choose Autel MD806/808 Series: MD808 Pro and MD806 Pro cover full vehicle system diagnosis and partial reset services, and are more suitable for DIYers and small auto repair shops with high diagnostic requirements.
- Autel MD906/909 Pro Series: If you want a Bluetooth OBD2 scanner that covers a wider range of vehicles and can perform common service functions, this series will be your best choice. It covers full system diagnosis and is an expert-level diagnostic scan tool.
Conclusion
Autel OBD2 readers continue to evolve and update, evolving from just engine system diagnostics to full system coverage, from diagnostics only to maintenance and reset services, and from wired to Bluetooth connectivity. Each scanner and series has its own unique features. Choose the one that best suits your needs based on the above information!
