KONNWEI KW331 Mercedes-Benz Full System OBD2 Scanner | Oil Reset, ABS, Airbag, EPB, SAS

Stop Paying Dealership Fees — Diagnose Your Mercedes-Benz at Home

The KONNWEI KW331 is a professional-grade OBD2 scanner built specifically for Mercedes-Benz, Maybach, and Smart vehicles. Imagine catching a fault code before it becomes a $500 repair — the KW331 puts that power in your hands. Plug in, scan, and know exactly what your car needs in seconds.

⚙️ Full System Diagnosis

Unlike generic scanners that only read engine codes, the KW331 accesses every electronic system in your Mercedes:

• Engine (ECU) — Read, clear, and live-stream fault codes
• ABS — Anti-lock brake system diagnostics
• Airbag / SRS — Safety restraint system scanning
• Transmission — Gearbox fault detection
• Immobilizer — Anti-theft system access
• Climate Control — HVAC system diagnostics

🔧 Special Reset & Calibration Functions

• Oil Service Reset — Clear the oil life reminder after every service
• Brake Pad Reset (EPB) — Electronic parking brake retraction for pad replacement
• Steering Angle Calibration (SAS) — Recalibrate after wheel alignment or steering work
• Throttle Matching — Relearn throttle position after cleaning or replacement

🌐 Universal OBD2 Compatibility

Not just for Mercedes. The KW331 also works as a universal OBD2 scanner for all 12V gasoline and diesel vehicles with OBD2/EOBD compliance — read and erase codes, view live data, and run I/M readiness tests on any car.

🛡️ Built for Professionals & DIY Enthusiasts

• 2.4-inch high-resolution LCD screen
• Compact handheld design with rugged anti-slip casing
• Multi-language support: English & German
• Lifetime free software updates via USB (Windows compatible)
• CE & RoHS certified

📐 Technical Specifications

📦 What's in the Box

• 1× KONNWEI KW331 Scan Tool
• 1× OBD2 Cable
• 1× USB Update Cable
• 1× Protective Nylon Carrying Bag
• 1× User Manual

❓ Frequently Asked Questions

Q: Does the KW331 work on all Mercedes-Benz models?
A: Yes, it supports Mercedes-Benz, Maybach, and Smart vehicles with 12V gasoline or diesel engines.

Q: Can I use it on non-Mercedes cars?
A: Yes, it functions as a universal OBD2 scanner for all 12V OBD2/EOBD compliant vehicles for basic engine diagnostics.

Q: Are software updates free?
A: Yes, lifetime free updates are available via USB connection to a Windows PC.