Thinktool Expert 391 is a next-generation professional diagnostic tool equipped with powerful online programming capabilities. It supports over 120 passenger car brands, more than 70 electric vehicle brands with the EV package, and over 150 heavy-duty vehicle brands with the HML package. Featuring CAN FD and DoIP communication protocol support, it enables fast and advanced diagnostic operations on modern vehicles. The newly developed TCOS operating system provides an optimized user interface, simplified procedures, and a user-friendly experience.

Thinktool Expert 391
2024 New Professional Online Diagnostic Tool
With Thinklink Lite VCI

TCOS System

EV
Supported

Heavy Duty Support


Full System Diagnostics
THINKTOOL Expert 391 is a brand-new diagnostic tool with a powerful online programming function. It supports over 120 passenger vehicles, more than 70 electric vehicles with the EV package, and over 150 heavy-duty vehicles with the HML package. The newly developed TCOS system provides an optimized user interface for easier operations.
Passenger Vehicles
EV Cars (Optional)
Heavy Duty (Optional)
OE-Level Diagnostics
The new Expert 391 supports advanced diagnostic functions such as full system scan, special functions, actuation tests, coding, and online programming. **Expansion Functional Module Support**: Supports THINKCAR functional modules such as battery tester clips, video scopes, oscilloscope boxes, TPMS tools, PROG key programmer, ADAS, and more.

Powerful Online Diagnostics
Supports powerful online programming functions for brands like AUDI, BMW, HYUNDAI, JAGUAR, KIA, LANDROVER, BENZ, NISSAN, PORSCHE, RENAULT, SEAT, SKODA, SUBARU, VW, SAICMG, MAXUS, TRUMPCHI, SPRINTER, HONDA. More to come soon!
41 Maintenance Functions


1280*800

High-Performance Processor
RAM
Rear Camera
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