THINKTOOL Expert 391

The THINKTOOL Expert 391 is a professional-grade diagnostic scanner built for workshops that need advanced capability without stepping into flagship pricing. With powerful online programming, bi-directional control, and wide vehicle coverage, the THINKTOOL Expert 391 delivers dealer-level diagnostics and intelligent repair support for modern vehicles. It supports a wide range of passenger vehicles, EVs, and optional heavy-duty systems, making it a highly versatile workshop tool.

What is the THINKTOOL Expert 391 Used For?

The THINKTOOL Expert 391 is used for advanced diagnostics, coding, and programming across modern vehicle systems.

Common workshop applications include:

• Full system diagnostics across all vehicle modules
• Reading and clearing fault codes (DTCs)
• ECU coding and online programming
• Bi-directional control and actuation testing
• Live data monitoring and system analysis
• ADAS, TPMS, and special function servicing (with modules)

How to Use the THINKTOOL Expert 391

1. Connect the Device

Plug the THINKLINK VCI into the vehicle’s OBD port and connect to the tablet.

2. Identify the Vehicle

Use auto VIN detection or manually select the vehicle.

3. Run a Full System Scan

Perform a complete scan across all systems.

4. Analyse Data

Review fault codes, live data, and diagnostic results.

5. Perform Advanced Functions

Carry out coding, programming, resets, or actuation tests.

Why Workshops Choose the THINKTOOL Expert 391

• OE-level diagnostics with full system coverage
• Powerful online programming capability for major vehicle brands
• Supports modern protocols including CAN FD, DoIP, and J2534
• Around 40+ maintenance reset functions for comprehensive servicing
• Dual remote diagnostics with video/audio support for expert assistance
• 10-inch Android-based tablet with fast performance and large storage
• Expandable with add-ons like TPMS tools, battery testers, and key programmers

How the THINKTOOL Expert 391 Improves Workshop Workflow

The THINKTOOL Expert 391 acts like a smart assistant in your workshop, helping you diagnose faster and more accurately.

• Efficiency: One tool handles diagnostics, coding, and programming
• Speed: Fast processing and intelligent diagnostics reduce troubleshooting time
• Safety: Accurate system insights prevent misdiagnosis
• Productivity: Advanced features reduce outsourcing and increase in-house work

Related Products That Work with the THINKTOOL Expert 391

THINKTOOL Expert 394

A higher-tier option offering AI-powered diagnostics and enhanced processing for advanced workshops.

Thinkcar Heavy Duty Pack

Expands the THINKTOOL Expert 391 to support heavy-duty and commercial vehicle diagnostics.

Who Should Use the THINKTOOL Expert 391?

• Automotive workshops
• Diagnostic specialists
• Advanced technicians
• Fleet maintenance centres
• Workshops working with modern and mixed vehicle types

Upgrade Your Workshop with the THINKTOOL Expert 391

The THINKTOOL Expert 391 sits right in that sweet spot, powerful enough to handle serious diagnostics and programming, yet practical enough for everyday workshop use. It’s the kind of tool that quietly upgrades your entire operation, helping you work faster, smarter, and with far more confidence.

Equipped THINKLINK Lite VCI

41 Maintenance Function

The Expert Series scanners offer tiered capability, from the 191 (entry professional) to the flagship 399 (full ADAS, ECU, and remote diagnostics). All models support the full range of OBD2-compliant vehicles common in South Africa. The 391 and above add bi-directional testing and ECU coding for BMW, Mercedes, VW/Audi group vehicles. The 399 adds cloud-based remote expert assistance.