MB V4.0 Professional Multi-System Car Diagnostic Tool

Exclusive for BENZ/SPRINTER/SMART/MAYBACH | 2 Extra Free Brands Lifetime | Free Updates

Product Overview

iCarsoft MB V4.0 is latest car diagnostic tool designed for BENZ, SPRINTER, SMART and MAYBACH vehicles. It supplied with BENZ/SPRINTER/SMART/MAYBACH software pre-installed, and 2 further vehicle makes can be downloaded free of charge. It performs a comprehensive scan of all supported systems within your vehicle. In addition to the regular 4 systems such Engine, ABS, Airbag and Transmission, it covers more complex systems diagnostic functions. With 5 inches touchscreen and Wi-Fi update. The MB V4.0 is specially made for home mechanics, DIYers, and professionals. Give your aging cars satisfying routine maintenance to avoid costly repairs, a breakdown, or even a crash.

General Diagnostic Functions:

• Full OBDII/EOBD Function

• 
  

  Battery Test.

• Read and Clear DTC.

• Read Ecu Information.

• Read Live Data.

• Full ECU Models（OBDII-16 DLC）.

• Read and Clear Freeze Frame.

• Actuation/Bi-directional Test.

• Teach-in of drive authorization system.

• Teach-in of position for camshafts.

• Calibration of intake valves.

• Oxygen sensor upstream of catalytic converter.

• Replace component NOx storage catalytic converter.

• Reset learned values of components NOx sensor upstream of SCR.

• Teach-in process after replacement of component NOx sensor downstream of SCR catalytic converter.

• Resetting of calibration values.

• Teach in component 'Pedal angle sensor'.

• Teach-in of intake port shutoff.

• Teach-in of camshaft positions.

• Write wheel electronics identification number.

* The function list depends on your car model and year. Contact us for detailed compatibility checks.

Strong Hardware and Software makes the MB V4.0 easy and intuitive operation

MB V4.0 is built for easy operation — no complex setup, with features that boost efficiency for both beginners and professional technicians.

• The MB V4.0 comes with BENZ/SPRINTER/SMART/MAYBACH software installed and it’s ready to use when get it, 2 further vehicle makes can be downloaded according to your need anytime when you need it free of charge.

• Fast AutoVIN Identify: Automatically retrieves detailed vehicle information, eliminating manual entry and saving time. It improves accuracy, reduces human errors, and enhances user experience, making diagnostics faster and more reliable.

• Bi-directional tool can send commands and receive information to perform specific tests and functions such as window/mirror/door lock tests and throttle adjustments to help you locate problems quickly.

• Multi-language: English, Deutsch, French, Dutch, Spanish, Czech, Swedish
  , Russian, Hungarian, Norwegian, Portuguese, Italian, Polish, Danish and Finnish.

Lifetime Free Updates & Service Functions

In contrast to other OBDII scanner on the market that demand users to pay for updates, our MB V4.0 comes with over 20 reset functions with lifetime free updates. Increasingly sophisticated software for better compatibility. And it’s one-click update after you connected with the Wi-fi.

 9  Essential Daily Maintenance Functions:

• Oil Reset: Reset engine oil life, service lamp, mileage, and intervals after oil change.

• Electronic Throttle Control: Relearn throttle parameters after resetting/replacing the throttle body.

• EPB Brake-Pad Reset: Retract electric parking brake calipers and reset SAS after pad replacement.

• Steering Angle Reset: Calibrate steering wheel to straight ahead (after SAS replacement).

• DPF Regeneration: Specially works for diesel particulate filter system with DPF regeneration, DPF component replacement teach-in and DPF teach-in after replacing the engine control unit.

• Injector Coding: Relearn injector parameters after renewal/replacement.

• ABS Bleeding: Release air to restore ABS sensitivity (after ABS replacement).

• Air Suspension Service: Try reset electronic suspension air ride with the message system close all doors flip through message system go to suspension reset or off.

• Battery Management Service: Allows the scan tool to evaluate the battery charge state, monitor the close-circuit current, register the battery replacement, and activate the rest state of the vehicle.

   

32 High-Level Service Functions (For Professionals):

• TPMS Reset: Allows you to look up the tire sensor IDs from the vehicle's ECU, inputting TPMS sensor replacement IDs and testing sensors.

• Air Conditioner Service: Supports routine maintenance of air condition modules, for example, air conditioning system adaption reset, reset air conditioning compressor, run in air-conditioning compressor, stepper motor initialization.

• Head Lamp Service : Initialize the adaptive headlamp system.

• Body Stability Control Service : Supports routine maintenance of DSC modules, for example, reset or delete the adaptation values, start-up the unit.

• Engine Control Service : Supports routine maintenance of engine modules, for example, reset or delete the adaptation values, calculate fuel consumption.

• Transmission Control Service : Supports routine maintenance of transmission modules, for example, reset adaptation values, adjust the oil level.

• Air-Bag Reset Service : Reset the airbag data to clear the airbag collision fault indicator.

• Seat Service: Calibration after repairing or replacing the seat position drive motor.

• Fuel Pump Service : Activate the Fuel Pump when replace a new one.

• Engine Idle Service: Adjust the engine speed for the car at idle speed.

• Immobilizer Service : Anti-theft Matching, disable any lost keys and add new keys. ONLY for cars with easy Immobilizer system.

• Door Service : Calibration after repairing or replacing the window lift moto.

• AdBlue : Reset urea after the diesel exhaust treatment fluid is replaced or filled up.

• Clutch Matching : This function learns the contract and position where the clutch starts to transmit engine torque after an electronic control unit replacement, transmission replacement/removal, or clutch replacement, and it’s applicable to adaptive clutches.

• Exhaust Gas Recirculation Service : Used for exhaust gas detection module related maintenance functions.

• Crankshaft: Used for crankshaft related maintenance functions, such as crankshaft position learning.

• Language Setting : Change the vehicle system language.

• Turbocharger : Learning after booster system component replacement, or resetting turbocharger learning value.

• High Voltage Battery: Used for high voltage battery system related maintenance functions, such as high voltage battery replacement, high voltage battery status information monitoring.

• Radar/Camera : Used for radar camera learning and calibration.

• Cylinder Shutoff Test: Used for engine cylinder break test, check the working

  condition of each cylinder of the engine by cutting off the oil circuit.

• Speed Limit Assist: Used for setting or removing the vehicle's maximum speed limit.

• O2S (Oxygen Sensor): Used for oxygen sensor replacement, initializing the learning value of the three-way catalytic converter, etc.

• Seat Belt: Used for seatbelt related maintenance functions.

• Stop and Start: Set up the automatic start-stop function in ECU.

• NOx Sensor: Reset catalytic converter learned value stored in ECU.

• Vehicle Setup: Used for vehicle personalization.

• Cylinder Misfire Check: Used for engine fire detection, when the vehicle has insufficient cylinder work such as weak acceleration, increased fuel consumption or serious jitter.

• Control Unit Reset: Used for resetting the control unit.

• Door-Window-Roof Service: Learns the top position of the door window glass, which enables pinch protection and one touch up function. The door window glass position can be learned by executing this routine.

• Engine Cylinder Service: Used for engine cylinder related maintenance functions.

• Cruise Control System: Used for adaptive cruise system related maintenance functions, such as adaptive cruise personalization.

And More Service Function in Miscellaneous.

* Service functions vary by model and year. Contact us anytime for compatibility details.

Full OBD2 Test Modes (Fix Emission Issues)

MB V4.0 supports all 10 OBD2 test modes for vehicles meeting 1996 OBDII/EOBD/JOBD/KOBD/CAN/CAN-FD standards — easily diagnose emission-related issues and pass vehicle inspections.

• Read Codes (retrieve diagnostic trouble codes)

• Erase Codes (clear codes and turn off check engine light)

• I/M Readiness (check emission system status for inspection)

• Live Data (view real-time vehicle parameters)

• Freeze Frame (read data when fault occurred)

• Vehicle Information (retrieve VIN, model, etc.)

• O2 Monitor Test (test oxygen sensor performance)

• On-Board Monitor (check on-board system status)

• Evap System Test (test fuel evaporation system)

• Component Test (test emission-related components)

Excellent Bi-directional Control Function

A key advantage : MB V4.0 support bi-directional control for most modules. It sends commands to vehicle components and receives feedback, allowing you to test functions directly — no need to operate the vehicle's physical controls.

• Test window/mirror/door lock operations to check actuator health.

• Adjust throttle position to verify throttle body function.

• Activate ABS components to confirm ABS system performance.

• Quickly distinguish between control system faults and component faults, reducing repair time.

* Bi-directional functions depend on your car model and year. Contact us for details.

History & Report Printing

• Quickly access previously tested vehicle systems and diagnostic records (no need to re-scan).

• Save and share diagnostic reports via email or USB (convenient for remote support).

• Print reports for future reference or customer records — simply connect the tool to a Windows PC.

• "Feedback" function: Get customized repair suggestions from our certified professionals (tailored for Land Rover/Jaguar).

• 【Upgrade Version】This product is based on MB V3.0 and can download up to 2 softwares from other 24 softwares with car makes for tailored diagnostics(Note: once downloaded, it cannot be changed). This means that this product is not only designed for most Mercedes-Benz/Sprinter/Smart/Maybach from 1996-2023 but also flexibly compatible with 2 other car brands.（As every car model has its-owned specific car system and ECUs, not all models are equipped with a complete vehicle ECU, which may cause the scanner to be unable to perform all listed reset services on some models, or even completely incompatible. Please tell us the car's VIN and required service before purchase for compatibility check!）
• 【OE-Level All Systems In-depth Diagnosis】Our OBD2 scanner can do in-depth diagnosis for all car systems and components, detect all faults and potential faults easily. With accurate and informative fault analysis help you figure out the cause and repair efficiently. This tool can do a in-depth body check for your car to ensure your driving safty, especially for the engine. Save you money on repair or maintenance fees. A true all-in-one tool for accurate troubleshooting and efficient repairs.
• 【Powerful Bi-directional Control】This scanner can send commands to many components/systems to test their working status. It enables actuation test for injector, fuel pump, idle air conctrol valve, ignition coil, ABS pump motor, EV-AP Valve, throttle position actuator, cooling fan, HVAC, A/C compressor, ETC, window, headlight, wiper, door lock, horn. These help to quickly narrow down problem areas, and allow DIY users locate faults more easily.
• 【UP to 42 Most Popular Reset Service for Mercedes-Benz/Sprinter/Smart】Equipped with 42 hot services including 2 new service - VIN Verifcation and Mileage Verifcation! As well as Oil Rest , SAS, EPB, ETC, TPMS Reset, ABS, Suspension, Air Conditioner, Head Lamp, Body Stability, Engine Control, Seat, Fuel Pump, Air-Filter, Door, Injector Coding, Transmission, Miscellaneous, BMS, Cluth, Seat Belt, Cruise Control System, Crankshaft, Language Setting and etc. Enable car to quickly work properly after components replace. About other 24 softwares with car makes, there are UP to 29 Service for PORSCHE, UP to 44 Maintenance Service for VAG, and more... You could choose 2 of them to download.
• 【Full OBD2 Functions】With auto diagnosis, auto VIN, this tool can quickly read & clear codes, read and clear freeze frame, track 118 live data stream in graph, easily turn off MIL. DTC Library allow you to retrieve generic and manufacturer specific codes. You can understand the fault codes easily. I/M readiness, O2 sensor test, evap system test and on-board monitoring allow you to know your maintenance needs better and help you pass the annual s-m-og check.
• 【Simplify Troubleshooting, Choose iCarsoft】As one of the top 4 global brands in vehicle diagnostic tools, iCarsoft has decades of technical expertise and is highly recommended by many YouTubers. We offer LIFETIME SOFTWARE FREE UPDATE, LIFETIME HARDWARE FREE REPAIR and a 1-year warran ty. Our scanners feature cutting-edge technology, making troubleshooting effortless. With customer experience as our top priority, we are here to serve you and provide satisfying solutions to any issues.

  ---

  What's in the box

• 1X OBD2 Scanner for Mercedes
• 1X User Manual
• 1X Power Adapter
• 1X16 Pin OBD2 Diagnostic Cable
  

• After-Sales Service

  • Warranty Period: 12 months global warranty (free repair/replacement for quality issues).

  • Return Policy: 30 days no-reason return (product in original condition, buyer covers return shipping).

  • Technical Support: Free online support

  • Update Service: Lifetime free software updates (we provide update guides if needed).

  Purchase Protection

  1

  100% Original Product: We are iCarsoft authorized seller — all products are genuine.

  2

  Trackable Shipping: All orders come with a tracking number (logistics info updated in real time).

  3

  On-Time Delivery Guarantee: We ship within Guaranteed Delivery time (except holidays) — late delivery will be compensated.

   

  FAQ :

  • Q: Will this scanner work with my [specific car model]?
    A:  As the functions vary from vehicle's Year and models , it depends . Please send us the VIN number +Functions you need or describe the car issues, we will check the compatibility and get back to you ASAP.

  • Q: Do I need to pay for updates?
    A: No — updates are 100% free for lifetime (no hidden fees). For Button scanner models ,users can download update tool from iCarsoft official website(icarsoft.com) -Support-Software Update  OR you can check online YouTube videos for the instruction .

  • Q: Can I use it for OBD1 vehicles?
    A: Yes, but you need to buy the dedicated OBD1 adaptor (BENZ38Pin/Sprinter14Pin/BMW20Pin) separately.

  • Q: Can I save or print diagnostic reports?
    A: Yes. You can save diagnostic records directly on the scanner and share reports via email. For printing, connect the scanner to a computer via USB, Open iCarsoft update Tool APP to export the report.