GM Mangoose PRO II vs GM MDI

Hello, what’s the main difference of GM Mangoose PRO II cable and GM MDI interface?

How do i know which one i need?

What is GM Mangoose PRO II:

Mongoose Pro GM II interface (either Drewtech Mongoose pro GM II or Chinese Mangoose pro GM II) is a low-cost, high-performance vehicle network interface that connects a laptop directly to the OBD-II connector. … Mongoose vehicle interface. Installation CD with device driver (J2534 compatible)

MongoosePro II can support GM GDS2 & Tech2Win:
Because GDS2 & Tech2Win can support different VCIs (Vehicle Communication Interface) based on D-PDU standard, such as GM MDI, Bosch MVCI, Drewtech CarDAQ plus, Drewtech MongoosePro GM II…, GDS2 can recognize the drivers of interface installed, so that the user can select the interace in the application, and make GDS2 to communicate with the ECUs of vehicle.

Some people even think it the best GM diagnostic tool coz technicians can use GM tools incl. MongoosePro GM to work with GM dealer diagnostic application GDS2, but MongoosePro is the cheapest interface compared with others, the user can save money, moreover the clean design of MongoosePro GM II with electronics protected by cable is a maintenance free solution that allows user to avoid frequent damages on main diagnostic cable and the communication port of interface.

What is GM MDI:

General Motors MDI vehicle communication interface (VCI) for wireless J2534 reprogramming and diagnostics. Note: Requires software subscription to GM SPS (Service Programming System), which must be purchased separately

Used for Pass-Thru programming on all GM vehicles since 1996 and forward. … The MDI manages the transfer of data between a vehicle’s onboard ECU network with an auxiliary CAN bus, and offers faster programming speed using J2534.

The MDI interface can support GM GDS2 & Tech2Win & Global TIS.

GM Mangoose PRO II vs GM MDI:


The Mongoose Pro GM II ALMOST does everything the MDI does. Currently that is:
– Module reflashing with SPS
– Diagnostics with Tech2Win software
– Diagnostics with GDS2 software.

Kind of different!

The GDS2 software package includes the data bus diagnostic tool. Using the data bus diagnostic tool, the MDI will allow you to see voltage levels on the data bus, the Mongoose will not. The Mongoose will run the data bus diagnostic tool, but only partially.

Bosch corporate provides no support for installation and use of the MDI with GM software.
Drew does.

This is the big price difference.

Besides, GM Mangoose PRO only for Opel/Vauxhall/GM with Tech2Win and GDS2.
Full coverage diagnostic and SPS programming
GM MDI can be use as a passthru for other software too

All in all, both are good

Good to know:

Why do you need both Tech2Win and GDS2:

GDS2 and Tech2Win download: