Choosing among the best Autel OBD2 scanners depends on whether you only need to read a check-engine code, want ABS and battery testing, or need all-system diagnostics with bidirectional controls. The eight Autel models in this guide range from a basic code reader priced at $21.84 to professional-style scan tools listed at up to $449.00.
This guide compares the published manufacturer-listed functions, compatibility notes, limitations, and prices.
Pros
- Supports multiple diagnostic functions beyond basic code reading
- No batteries are needed for operation
- Offers seven language options, including English, French, and Spanish
- Designed with a plug-and-play interface for end users and DIYers
Cons
- The listing does not identify all seven supported languages
Specifications
| Color | OBD2 Scanner |
|---|---|
| Size | AL319 |
| Dimensions | 4.61 x 2.83 x 0.71 inches |
| Weight | 0.39021820374 Pounds |
| Product Group | Automotive Parts and Accessories |
| Binding | Automotive |
Best For / Avoid If
Best for buyers prioritizing
- Supports multiple diagnostic functions beyond basic code reading
- No batteries are needed for operation
- Offers seven language options, including English, French, and Spanish
Consider another option if
- The listing does not identify all seven supported languages
Pros
- Combines OBD2 diagnostics, ABS functions and starting-and-charging system testing
- Supports complete OBDII diagnosis for vehicle models manufactured after 1996
- Includes Ford, GM and Chrysler enhanced powertrain code support
- Provides English, Spanish and French menu options
Cons
- ABS diagnosis is limited to OBDII vehicles manufactured between 2000 and 2020
- The Type-C USB cable required for software updates is not included
- Battery and alternator testing requires following the pretest procedures in the user manual
Specifications
| Color | red |
|---|---|
| Size | One Size - AL549 |
| Dimensions | 3.3 x 0.8 x 5.9 inches |
| Product Group | Automotive Parts and Accessories |
| Binding | Automotive |
Best For / Avoid If
Best for buyers prioritizing
- Combines OBD2 diagnostics, ABS functions and starting-and-charging system testing
- Supports complete OBDII diagnosis for vehicle models manufactured after 1996
- Includes Ford, GM and Chrysler enhanced powertrain code support
Consider another option if
- ABS diagnosis is limited to OBDII vehicles manufactured between 2000 and 2020
- The Type-C USB cable required for software updates is not included
- Battery and alternator testing requires following the pretest procedures in the user manual
Pros
- Combines all-system diagnostics with bidirectional active testing
- Offers more than 28 service and reset functions
- Supports newer CAN FD and DoIP vehicle communication protocols
- Includes FCA Auto Authorization for compatible vehicles
- Provides 4GB RAM and 64GB storage on an Android 11 platform
Specifications
| Color | Black |
|---|---|
| Size | 7-inch capacitive LCD touchscreen (1024x600) |
| Dimensions | 9.44 x 5.9 x 1.37 inches |
| Product Group | Automotive Parts and Accessories |
Best For / Avoid If
Best for buyers prioritizing
- Combines all-system diagnostics with bidirectional active testing
- Offers more than 28 service and reset functions
- Supports newer CAN FD and DoIP vehicle communication protocols
Pros
- Combines full-system diagnostics with bidirectional active tests
- Offers a broad set of maintenance and reset functions
- Includes live-data displays in graph, text, column, meter, and waveform formats
- Provides listed compatibility with the Autel MV108S endoscope
Cons
- Vehicle compatibility and available service functions vary by vehicle and should be checked by VIN
- Auto VIN is not universal to all vehicles
- The listing reports a 4.2 Amazon rating from 0 reviews, so no written review sample is provided
Specifications
| Color | Black |
|---|---|
| Size | Medium |
| Dimensions | 9.4 x 5.9 x 1.4 inches |
| Weight | 1.5211896078 Pounds |
| Product Group | Automotive Parts and Accessories |
| Binding | Unknown Binding |
Best For / Avoid If
Best for buyers prioritizing
- Combines full-system diagnostics with bidirectional active tests
- Offers a broad set of maintenance and reset functions
- Includes live-data displays in graph, text, column, meter, and waveform formats
Consider another option if
- Vehicle compatibility and available service functions vary by vehicle and should be checked by VIN
- Auto VIN is not universal to all vehicles
- The listing reports a 4.2 Amazon rating from 0 reviews, so no written review sample is provided
Pros
- Combines OBD2 diagnostics, ABS code reading, and battery and alternator testing in one tool
- Includes live data, freeze-frame data, on-board monitor testing, and component testing
- Supports enhanced powertrain codes for Ford, GM, and Chrysler
Cons
- ABS diagnosis is specified only for OBD2 vehicles manufactured from 1996 through 2020 and does not support newer models after 2020
- Type-C cable is not included for software updates or data printing
Specifications
| Color | Red |
|---|---|
| Dimensions | 1.181102361 x 6.299212592 x 7.086614166 Inches |
| Product Group | Automotive Parts and Accessories |
| Binding | Automotive |
Best For / Avoid If
Best for buyers prioritizing
- Combines OBD2 diagnostics, ABS code reading, and battery and alternator testing in one tool
- Includes live data, freeze-frame data, on-board monitor testing, and component testing
- Supports enhanced powertrain codes for Ford, GM, and Chrysler
Consider another option if
- ABS diagnosis is specified only for OBD2 vehicles manufactured from 1996 through 2020 and does not support newer models after 2020
- Type-C cable is not included for software updates or data printing
Top Picks at a Glance
- Best for basic check-engine diagnosis: Autel MS309, if you only need standard OBDII functions and can accept its FCA and security-gateway limitations.
- Best budget step-up: Autel AL319, with code reading, clearing, live data, freeze-frame data, and I/M readiness checks.
- Best for ABS and charging-system checks: Autel AL549, which the manufacturer lists as combining OBD2 diagnostics, ABS code functions, and starting/charging-system testing.
- Best for emissions-readiness checks on older supported vehicles: Autel AL329, with one-click I/M readiness and an Auto VIN feature listed for vehicles before 2017 that support OBD II.
- Best for advanced DIY and small-shop diagnostics: Autel MaxiCOM MK808Z, with all-system scanning, bidirectional controls, and more than 28 listed service functions.
- Best for active tests and service resets: Autel MaxiCOM MK808S or MaxiCheck MX808S. Both listings emphasize 28-plus service functions and more than 3,000 active tests.
Affiliate disclosure: CarTechTalk may earn a commission from qualifying purchases made through retailer links. This does not affect how the products are described.
What to Look For in OBD2 Scanners & Diagnostics
We evaluated the published product specifications, stated vehicle and model-year coverage, diagnostic functions, security-gateway warnings, service capabilities, and listed prices. We also checked the available review information, but the published data reports zero total Amazon reviews across these products and includes no customer excerpts. Accordingly, no customer sentiment, reliability claim, editorial score, or test result is presented here.
Compatibility takes priority. OBD2 support does not automatically mean that every module, service function, or active test works on every vehicle. The listings themselves warn that functions vary by car, and several advanced tools require checking compatibility before purchase.
Top Picks
Autel MS309: Best for Basic Engine-Code Reading
Price listed: $21.84
The MS309 is the simplest and least expensive option in the listed range. The manufacturer lists it as a plug-and-play OBDII CAN code reader for standard OBD II vehicles from 1996 onward in the US market. It is intended for basic engine fault-code reading, clearing, check-engine-light diagnosis, and emissions-monitor status checks.
Why choose it: It is a straightforward choice for a driver who wants basic OBDII information without advanced service functions.
Limitations: The listing says it does not support TPMS or other service functions, does not provide full-engine-system coverage, and cannot access OBDII modules to clear codes on FCA vehicles such as Chrysler, Dodge, and Jeep models made after 2017 when the security gateway applies. The listing also warns that other security-gateway-equipped brands may not be supported.
Avoid if: You need ABS, SRS, transmission, battery registration, active tests, or broader module access.
Autel AL319: Best Budget Choice for DIY Check-Engine Diagnosis
Price listed: $27.99
The AL319 adds useful convenience features while remaining a basic engine-code reader. The manufacturer lists DTC reading and clearing, code lookup, live data, freeze-frame data, vehicle information, and I/M readiness. Its one-click readiness control, color display, LED indicators, and built-in speaker are aimed at simple at-home diagnosis. The listing explicitly says no batteries are needed.
Why choose it: It is a sensible low-cost starting point for owners who want more information than a warning-light reset alone.
Compatibility: The listing identifies post-1996 OBD II vehicles and names brands including Toyota, Nissan, Honda, and Ford. It also lists seven languages.
Avoid if: You need manufacturer-specific module diagnosis or service resets.
Autel AL329: Best for I/M Readiness and Basic Live Data
Price listed: $34.98
The AL329 is positioned as a more comprehensive basic scanner than the older AL319. The manufacturer lists generic and manufacturer-specific code reading, pending codes, code clearing, live-data graphing, recording and playback, freeze-frame data, vehicle identification information, and one-click I/M readiness checks.
Compatibility: It is listed for domestic, Asian, and European vehicles from 1996 onward that support OBD II. The Auto VIN function is specifically described as applying only to vehicles before 2017 that support OBD II.
Why choose it: It suits owners who want to verify monitor status before an emissions inspection or review live data after a repair.
Limitations: The listing covered does not establish ABS, SRS, transmission, or advanced service-function coverage. The vehicle-year qualification for Auto VIN should not be confused with the broader OBDII compatibility statement.
Avoid if: Your main need is chassis-system diagnosis or bidirectional control.
Autel AL549: Best for ABS and Charging-System Checks
Price listed: $69.00
The AL549 is the most capable handheld option among the lower-priced models supplied. The manufacturer lists three main areas: complete OBD2 diagnostics, ABS code reading and clearing, and universal starting- and charging-system testing. It also includes live data, freeze-frame data, I/M readiness, and all 10 OBDII test modes according to the listing.
Why choose it: It is a practical fit for a DIY owner who wants more than engine-code access but does not need a tablet-based all-system tool.
Limitations: ABS coverage is not the same as full access to every vehicle module. The listing does not confirm SRS, transmission, bidirectional, or service-reset coverage.
Avoid if: You need active tests, injector coding, battery registration, or a broad tablet diagnostic platform.
Autel MaxiCOM MK808Z: Best for Advanced DIY and Small Shops
Price listed: $378.96
The MK808Z is the most feature-rich model in the listed lineup below the $449.00 tools. The manufacturer lists all-system diagnostics, live data in text, graph, and analog formats, bidirectional active tests, and more than 28 service and reset functions. Examples include oil, EPB, SAS, SRS, injector, battery, and DPF-related functions, plus crankshaft-position relearn and throttle-body adaptation.
Why choose it: Its listed scope is aimed at users who diagnose multiple systems and perform post-repair resets rather than simply clear an engine code.
Limitations: The listing says functions vary by vehicle. It does not provide a complete make-and-model compatibility matrix, update terms, or a complete list of supported active tests for every vehicle.
Avoid if: You only need an occasional check-engine scan; the higher price would buy functions you may not use.
Autel MaxiCOM MK808S: Best Listed Feature Set for Active Tests
Price listed: $449.00
The MK808S listing describes a professional-style tablet scanner with an RK3566 quad-core processor, 4GB of RAM, 64GB of storage, and Android 11. It lists support for more than 28 service functions, more than 3,000 active tests, 150-plus vehicle makes, and FCA AutoAuth.
Why choose it: The stated combination of all-system diagnostics, active tests, service resets, and newer hardware makes it the strongest fit in this included set for advanced troubleshooting across multiple supported brands.
Limitations: “More than 3,000 active tests” does not mean every test is available on every vehicle.
Avoid if: You want a pocket-sized code reader or have no need for bidirectional and service functions.
Autel MaxiCheck MX808S: Best Alternative for Workshop-Style Diagnostics
Price listed: $449.00
The MX808S shares the listing covered’s core positioning with the MK808S: Android 11, 4GB of RAM, 64GB of storage, more than 28 service functions, and more than 3,000 active tests. The listing also emphasizes switching among engine, ABS, SRS, and transmission systems and performing active tests.
Why choose it: It is a logical alternative for mechanics, small shops, and experienced DIY users who want tablet-based diagnostics and live-data access.
Limitations: The manufacturer listing warns that functions vary by car and advises checking compatibility.
Avoid if: Your use is limited to reading generic powertrain codes.
Autel AL549 Listing Variant: Best If the Retailer Listing Matches Your Vehicle Needs
Price listed: $69.00
The second AL549 product row describes the same model family and repeats the key functions: complete OBD2 diagnostics, ABS code access, battery and charging-system testing, live data, and I/M readiness. It is included separately because it has a different ASIN and retailer listing.
Why choose it: Compare the retailer’s included accessories, support information, and vehicle-coverage details before buying, since the listed rows do not establish a functional difference between the two AL549 listings.
Limitations: Do not assume that separate listings represent different hardware.
Avoid if: You need a clearly documented all-system tablet scanner.
Comparison of the Eight Listed Autel Scanners
| Model | Listed price | Primary listed functions | Compatibility details | Important limitation |
|---|---|---|---|---|
| AL319 | $27.99 | Engine codes, live data, freeze frame, I/M readiness | Post-1996 OBD II vehicles; seven languages listed | Advanced module coverage not provided |
| AL549, ASIN B0CP3YLDLH | $69.00 | OBD2, ABS, starting and charging tests | Post-1996 vehicles; detailed ABS coverage not fully provided | Full non-engine module coverage not provided |
| MK808Z | $378.96 | All-system scans, bidirectional tests, 28-plus services | All vehicles claimed in listing; detailed matrix not provided | Functions vary by vehicle |
| MX808S | $449.00 | Bidirectional scans, 28-plus services, 3,000-plus active tests | Compatibility varies by vehicle | Update and coverage details not provided |
| AL329 | $34.98 | Codes, live data recording, Auto VIN, I/M readiness | 1996-plus OBD II; Auto VIN qualification before 2017 | Advanced system coverage not provided |
| AL549, ASIN B0CZ8TZCQS | $69.00 | OBD2, ABS, battery and charging tests | 1996-plus cars and trucks; more than 20 ABS brands listed | Exact vehicle coverage not provided |
| MK808S | $449.00 | Bidirectional scans, 28-plus services, 3,000-plus active tests | 150-plus makes and FCA AutoAuth listed | Functions vary by vehicle |
| MS309 | $21.84 | Basic OBDII codes and emissions-monitor status | Standard US OBD II vehicles from 1996 onward | FCA security-gateway and advanced-function limitations |
Sizing, Fitment, and Setup Notes
First, confirm that your vehicle has the required OBD II connection and falls within the model-year range stated by the listing. A 1996-plus OBDII claim generally refers to the vehicle’s diagnostic standard, not guaranteed access to ABS, SRS, transmission, or body modules.
Second, separate engine-code reading from enhanced diagnostics. The MS309, AL319, and AL329 are primarily basic OBDII tools in the published data. The AL549 adds ABS and starting or charging functions. The MK808Z, MK808S, and MX808S are tablet-style tools aimed at broader system diagnostics, service functions, and active tests.
Third, check security-gateway requirements. The MS309 listing specifically warns about FCA vehicles made after 2017 and other vehicles using a security gateway. Advanced tools may list FCA AutoAuth, but the listing does not confirm coverage for your exact vehicle.
Finally, verify power and setup details before ordering. The AL319 listing explicitly says no batteries are needed. The other listings covered do not consistently state a power source, so confirm how the tool is powered and whether any required cable, registration, software, or authorization process applies to your vehicle.
Selection Guide
- Choose a basic reader if your goal is to retrieve generic engine codes, view limited live data, clear a warning light after repairs, or check emissions readiness.
- Choose the AL549 if ABS and battery or alternator testing are important and you prefer a handheld tool.
- Choose an advanced tablet if you need all-system scans, active tests, injector coding, battery registration, SAS work, DPF functions, or other service resets.
- Prioritize exact vehicle coverage over the number of advertised functions. Active tests and resets can vary substantially by make, model, year, and system.
- Compare duplicate listings carefully. The two AL549 ASINs listed here do not show a confirmed functional difference, so compare seller support and included items before purchase.
Related reading: OBD2 Scanner Buying Guide for Beginners, Best Rated OBD2 Scanner and Best Scan Tool.
Answers to Common Questions
What is the best Autel OBD2 scanner for a check-engine light?
The AL319 is the most straightforward budget choice when you need code reading, clearing, live data, freeze-frame information, and I/M readiness. The MS309 costs less but has a narrower feature set. The AL329 adds live-data recording and an Auto VIN feature with the stated pre-2017 qualification.
Which Autel scanner reads ABS codes?
The listed AL549 listings specifically describe ABS code reading and clearing. They do not establish complete ABS coverage for every vehicle, so verify your make, model, and year.
Do these scanners work on every car?
No. The listings describe broad OBDII or multi-brand coverage, but module access and service functions vary by vehicle. FCA security gateways are an explicit limitation for the MS309 listing.
Is a $449 Autel scanner worth it?
It may be justified for users who need bidirectional controls, all-system diagnostics, active tests, and service resets. For occasional engine-code checks, the lower-cost handheld models are better matched to the stated use.
Are the two AL549 products different scanners?
The published data identifies both as AL549 products and does not provide a confirmed functional difference. Treat them as separate retailer listings and compare the exact package and seller details.
Our Verdict
For the simplest diagnostic task, the MS309 is the lowest-priced option, while the AL319 offers a stronger basic feature set at a modest increase. The AL329 is the better fit when I/M readiness and live-data recording matter. The AL549 is the standout handheld choice for buyers who also want the listed ABS and charging-system functions.
For advanced DIY users and small shops, the MK808Z, MK808S, and MX808S provide the broadest listed capabilities, including all-system diagnostics, active tests, and service functions. Before buying any of the eight listed Autel scanners, verify exact vehicle coverage, security-gateway requirements, power details, and whether the functions you need are supported on your specific model.
