Autel MaxiCheck MX900 Bidirectional Diagnostic Scanner, 8-inch

The Autel MaxiCheck MX900 is an 8-inch vehicle diagnostic scanner listed with bidirectional testing, full-system diagnostics, and more than 40 service functions. It may suit repair work that needs active component checks and newer-vehicle protocols, but confirm the vehicle-specific functions and connection setup before buying.

At a glance

Bidirectional active tests send commands to vehicle modules and check component responses, according to the listing.
Full-system diagnostics include reading and clearing codes, ECU information and live-data viewing.
Listing describes more than 40 service operations, including oil reset, ABS bleeding and steering-angle calibration.
CAN FD and DoIP are listed for communication with newer vehicle platforms.
Wi-Fi printing and cloud upload are listed for diagnostic reports.

Price

$639.20Save 15%

Reference price: ~~$749.00~~

Price checked: Nov 12, 2026

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Pros and cons

Pros

Active tests can help check components such as fuel pumps, injectors, windows and mirrors before replacing parts.
The stated service and full-system functions extend beyond basic code reading.
An 8-inch display provides a larger interface for diagnostics and live data than a basic code reader.

Technical specifications

8 specifications

Identity
Brand	Autel

Display and system
Screen size	8 inches
Operating system	Android 11.0

Power and battery
Power configuration	Battery Powered
Battery listing	1 12V batteries required. (included)

Diagnostics and connectivity
Active tests	3000+ Active Tests
Service functions	40+ Services
Wireless networking	5GHz & 2.4GHz dual-band Wi-Fi

What to know before buying

Listing details to confirm

Listing details are inconsistent about the model comparison and equivalence: the title calls it an upgrade to several scanners, while descriptions variously identify it as the same as the MK900 or as having the same functions as the MK900 and MK900BT. The MX900 is said to use a standard main cable rather than the MK900BT's V150 interface. Other claims vary between support for 150+ and 160+ vehicle makes and between coverage for 90%+ and 99% of vehicles. Confirm exact vehicle compatibility, functions and connection hardware for your intended vehicle. The listing also describes Bluetooth feedback even though its MX900 connection description specifies a main cable, and its 12V battery detail does not match the stated built-in 7000mAh battery.

Who is it for?

A good fit for

Technicians or experienced DIY users who need bidirectional component tests and more than basic code reading.
Repair settings that use full-system scans, service resets and reports for multiple vehicles.
Buyers working with newer vehicle platforms who need to check CAN FD or DoIP compatibility.

Less suited to

Drivers seeking only a simple, low-cost reader for engine codes.
Buyers who need confirmed compatibility with a specific make, model and year without checking the particular functions first.

Autel MaxiCheck MX900 Bidirectional Diagnostic Scanner, 8-inch · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 580 ratings

5 stars80%80%
4 stars12%12%
3 stars4%4%
2 stars2%2%
1 star2%2%

Customer feedback describes diagnostics and troubleshooting as easier, with useful diagnostic information, a broad set of options, quick Bluetooth pairing and straightforward setup. This is relevant to the MX900's listed full-system and active-test functions, but feedback about Bluetooth does not confirm the connection method for this model, which the listing describes as using a main cable. Experiences with software updates are mixed, so consider update expectations alongside the diagnostic features.

Positive themes

Customers report that diagnostic information is useful and the tool makes troubleshooting easier.
Feedback highlights a range of options, quick Bluetooth pairing and easy setup.

Mixed feedback

Customer experiences with software updates are mixed.

Frequently asked questions

What does bidirectional testing do on the MX900?

The listing says it sends commands to vehicle modules and checks component operation. Availability of each test can depend on the vehicle and system.

Does the MX900 work with newer vehicles?

CAN FD and DoIP support are listed for newer platforms. The listing's vehicle-coverage claims vary, so check the exact make, model, year and required function.

Is the MX900 the same as an MK900BT?

The listing makes conflicting equivalence claims. It says the MX900 uses a standard main cable instead of the MK900BT's V150 interface, so verify the selected unit's hardware and functions.