







Mercedes-Benz Diagnostics with V4 Touchscreen Hardware
The iCarsoft MB V4.0 is a dedicated diagnostic scan tool for Mercedes-Benz, Sprinter, Smart and Maybach vehicles. It is designed for owners, enthusiasts and workshops that want deeper Mercedes system access than a simple engine-only scanner can provide.
The MB V4.0 comes pre-installed for Mercedes-Benz group diagnostics and also allows two additional vehicle make groups to be downloaded at no extra cost. It combines full-system diagnostics, live data, service functions, supported active tests, AutoVIN, WiFi updates and a 5-inch Android touchscreen interface.
Best Suited For
The MB V4.0 is best suited to Mercedes-Benz, Sprinter, Smart and Maybach owners who want a modern touchscreen diagnostic tool for servicing, maintenance and fault finding.
It is useful for checking engine, transmission, ABS, SRS airbags, electronic parking brake, battery management, diesel emissions, air suspension, body control and other supported systems on compatible vehicles.
Key Features
- Dedicated iCarsoft tool for Mercedes-Benz, Sprinter, Smart and Maybach diagnostics
- Mercedes-Benz group software pre-installed
- Two additional vehicle make groups downloadable at no extra cost
- 5-inch Android touchscreen interface
- Quad-core 1.3GHz processor with 64GB storage
- CAN-FD protocol support for many newer vehicles
- Full-system diagnostics on supported vehicles
- Supported active test and bi-directional control capability
- 41 service and maintenance functions
- WiFi updates with lifetime free software updates
System Diagnostics
The MB V4.0 provides access to major systems across supported Mercedes-Benz, Sprinter, Smart and Maybach vehicles. This can include engine management, transmission, ABS, SRS airbags, body control, electronic parking brake, steering, battery management, air conditioning, diesel emissions, air suspension, lighting, instrument cluster and other available modules.
It can read and clear fault codes, display ECU information, show live data, run system scans and save diagnostic information. Supported active tests can help check selected components, circuits and modules during fault finding.
Service Functions
The MB V4.0 includes 41 service and maintenance functions for supported vehicles. Common functions may include oil service reset, electronic throttle relearn, electronic parking brake service, steering angle sensor calibration, DPF regeneration, injector coding, ABS bleeding, air suspension service, battery management service and TPMS-related functions.
It also supports additional advanced routines on selected vehicles, including air conditioning service, adaptive headlamp calibration, engine and transmission adaptation resets, seat calibration, door/window/roof learning, fuel pump service, EGR and AdBlue-related functions, crankshaft learning, cruise control-related functions, NOx sensor reset, rain/light sensor calibration, start-stop setup, turbocharger learning, radar/camera-related routines and other vehicle-specific procedures.
Vehicle Compatibility
The MB V4.0 is supplied with Mercedes-Benz group software pre-installed, covering Mercedes-Benz, Sprinter, Smart and Maybach vehicles where supported.
The tool also allows two additional vehicle make groups to be downloaded at no extra cost from the supported iCarsoft V4 software list.
Coverage varies by vehicle make, model, year, system and function. If you need a specific reset, diagnostic system or service function, please use the iCarsoft coverage checker before ordering.

Additional Manufacturer Downloads
Alongside the included Mercedes-Benz group software, the MB V4.0 allows two additional manufacturer software downloads at no extra cost. This can be useful if you also maintain another vehicle in the household or want extra flexibility in the workshop.
Available options include selected American, European, Asian and Australian makes. Please check the current iCarsoft software list and coverage information before choosing extra brands.
What’s in the Box
- iCarsoft MB V4.0 Main Unit
- OBDII-16 Main Test Cable
- USB Charging Cable
- Power Adapter
- Quick Start Guide
- User Manual
- Protective Carry Case
Is This the Right Scan Tool for You?
The MB V4.0 is the right choice if you mainly work on Mercedes-Benz, Sprinter, Smart or Maybach vehicles and want a modern touchscreen scan tool with strong system access, service functions, supported active tests, WiFi updates and two extra manufacturer downloads.
If you want a lower-cost button-operated Mercedes handheld tool, the MB V3.0 may be enough. If you work across many different makes every day, one of our all-makes scan tools may be a better fit.