AI Intelligence guides you through diagnostics and repairs.
lifetime free update
CAN-FD & FCA protocol and the versatile ELM327 standard
Pioneering Feature: AI-Powered Diagnostics
DF-AI, powered by the cutting-edge DeepSeek LLM, goes beyond a general-purpose AI assistant. As a smart tech platform deeply integrated with domain-specific expertise, it delivers multi-dimensional, high-precision, industrial-grade technical support — empowering you to achieve one-click transformation from novice to community repair expert.
①Automated Diagnostic Report Parsing & Generation: Intelligently analyzes and extracts core data from user-provided diagnostic reports. Delivers structured, technically rigorous comprehensive diagnostic analysis reports, significantly enhancing information processing efficiency and decision-making quality.
② Full-Stack Automotive Fault Diagnosis & Analysis: Offers root cause analysis, multi-dimensional repair guidance, circuit diagnostics modules, component testing modules, deep data fusion analysis, and parts replacement decision support.
③ Cognitive Intelligence Assistance: Leverages the LLM's generalization capabilities to provide efficient, precise cognitive support and information refinement across user scenarios including workflow collaboration, knowledge querying, and learning/research. Serves as a round-the-clock intelligent cognitive assistant.

Free Lifetime Updates · Zero Hidden Costs
Always Expanding, Always Advancing. Gain cutting-edge diagnostics monthly — MUCAR BT200 MAX delivers new vehicle coverage and enhanced capabilities every 30 days, at no extra cost.
Bidirectional Control & Actuation Testing
Directly test and command critical components in real time, just like dealership-grade tools. Troubleshoot with ease, work without hassle.
3000+ Bi-Directional commands: pinpoint Faults 3x Faster. Test Mirror, Windows, Wiper, Headlights, EVAP Systems, Purge Solenoids, Fuel Injectors, Cycle A/C Clutches & ABS Pumps & Control Cooling Fans, and more.
15+ Critical Maintenance Resets
MUCAR BT200 MAX helps you to unlock 15+ critical vehicle maintenance reset functions engineered for workshop efficiency and precision repairs: Injector, EGR Adaption, AFS Reset, Elec.Throttle Rlrn, Oil Reset, SAS Reset, SUN Roof, BAT. Match, SUS Reset, Bleeding, Reset D&P&F, Brake Reset, Gearbox Learn, IMMO, TPMS Reset

Specially Designed Features That Set Us Apart
① Intelligent Sleep Mode: No battery drain! Leave the adapter plugged in worry-free. Our smart technology prevents parasitic battery drain when parked, so you never need to unplug it after diagnostics. Ready when you are.
② ELM327 APP Compatibility: Seamlessly connects with any third-party app supporting the ELM327 protocol.
③ Customizable Dashboard: Your data, your way. Visually track key parameters with dynamic, real-time gauges.
CAN-FD & FCA Supported
Expand your workshop's reach, cover more vehicles for comprehensive diagnostics.

Full Systems Diagnostics
Quickly scan and diagnose all major systems — including engine, transmission, ABS, SRS, battery, and more.
Full OBD2 Functions
Get complete OBD2 functionality: Read/Clear codes, view freeze frame data, monitor live data streams, and check emissions readiness, etc.
Quick Setup Steps: Plug in, Activate, And Start Your Diagnosis.
The Dollarfix app supports 22 languages, breaking language barriers effortlessly for diagnosis: English, German, Spanish, Russian, French, Portuguese, Polish, Italian, Arabic, Bulgarian, Romanian, Turkish, Dutch, Swedish, Hungarian, Serbian, Czech, Vietnamese, Indonesian, Tagalog, Lithuanian, Latvian.
Product Parameters:
Bluetooth: 5.2
Compatible OS: Android 5.0 / iOS 13 or above
Operating Temperature: 14°F to 122°F (-10°C to 50°C )
Storage Temperature: -4°F to 140°F (-20°C to 60°C )
Working Voltage: 9~18V
Working Current: ≤130mA
Warranty: 12 months
Package includes:
1pc x MUCAR BT200 MAX dongle
1pc x Hard protective case
1pc x Quick start manual