Description
iCarsoft VAWS V4.0 – Advanced VAG Diagnostic Tool
The iCarsoft VAWS V4.0 is an advanced diagnostic scanner designed for Volkswagen Group vehicles, including Volkswagen, Audi, Skoda, SEAT, Bentley, Bugatti, Lamborghini, Volkswagen Commercial Vehicles and other supported VAG platforms. It combines full-system diagnostics, full bidirectional active tests, ECU coding, 43 service and maintenance functions, CAN-FD support and lifetime free Wi-Fi updates in a modern 5-inch Android touchscreen device.
Compared with earlier VAWS-series scanners, the V4.0 adds a larger touchscreen, Android operating system, wireless updates and the ability to download two additional vehicle make groups free of charge.
- Full-system diagnostics for supported VAG vehicles
- Full bidirectional active tests
- ECU coding, adaptations and basic settings
- 43 service and maintenance functions
- CAN-FD support
- AutoVIN vehicle identification
- 5-inch Android touchscreen
- Two additional vehicle make groups included
- Lifetime free Wi-Fi software updates
- No annual diagnostic software subscription
Supported VAG Vehicle Brands
The VAWS V4.0 comes pre-installed with diagnostic software for the Volkswagen Group and supports major VAG brands including:
- Volkswagen
- Audi
- Skoda
- SEAT
- Bentley
- Bugatti
- Lamborghini
- Volkswagen Commercial Vehicles
- VW LT3
- MAN Light-Duty
The manufacturer states VAG coverage from approximately 1996 to 2025, depending on the vehicle, system and diagnostic function. :chatgpt-content-reference{index=”1″}
Who Is the iCarsoft VAWS V4.0 For?
The VAWS V4.0 is well suited to Volkswagen Group owners, enthusiasts and independent workshops that need more than basic OBD2 fault-code reading.
It is a strong choice if you want to diagnose faults across multiple vehicle systems, perform maintenance procedures, run active component tests and access advanced VAG coding and adaptation functions without moving to a subscription-based workshop platform.
Full-System VAG Diagnostics
Unlike a basic OBD2 scanner that mainly communicates with the engine control unit, the iCarsoft VAWS V4.0 can access numerous control modules throughout supported VAG vehicles.
Depending on the vehicle, diagnostic access can include:
- Engine
- Automatic transmission
- ABS
- Airbag / SRS
- Electronic parking brake
- Steering systems
- Body control modules
- Climate control
- Instrument cluster
- Battery management
- Lighting and comfort systems
- Other manufacturer-specific control modules
Functions include reading and clearing diagnostic trouble codes, viewing live data, system scanning, AutoVIN identification and access to manufacturer-specific diagnostic information.
Full Bidirectional Control and Active Tests
The VAWS V4.0 supports full bidirectional diagnostics, allowing the scanner to send commands directly to supported vehicle control modules. This helps test components during troubleshooting instead of relying only on fault codes and live data.
Depending on the vehicle and control module, active tests can include:
- ABS pump activation
- Fuel pump activation
- Window regulator tests
- Cooling fan activation
- Door lock operation
- Injector tests
- EGR valve tests
- Transmission solenoid tests
- Other supported actuators
The manufacturer lists more than 22 active-test categories, although exact availability depends on the vehicle and installed control modules. :chatgpt-content-reference{index=”2″}
ECU Coding, Basic Settings and Adaptations
One of the main advantages of the VAWS V4.0 is its support for VAG ECU coding and adaptation functions on compatible vehicles.
The manufacturer lists advanced functions such as:
- ECU coding / Code II
- Basic Settings
- Adaptation
- Security Login
- Vehicle configuration changes
- Module replacement and synchronization
- Selected hidden-feature and personalization functions
Advanced coding coverage is particularly focused on major VAG models from approximately 2010 onward, although exact coding capability depends on the vehicle, model year and ECU. :chatgpt-content-reference{index=”3″}
43 Service and Maintenance Functions
The iCarsoft VAWS V4.0 includes 43 service and maintenance functions. The manufacturer divides these into 9 commonly used maintenance functions and 34 advanced high-level functions. :chatgpt-content-reference{index=”4″}
Common Service Functions
- Oil / service reset
- Electronic parking brake / brake pad service
- Electronic throttle control
- Steering angle sensor calibration
- DPF regeneration
- Injector coding
- ABS bleeding
- Battery management reset
- TPMS reset
Additional advanced functions include manufacturer-specific resets, adaptations, relearns and calibration procedures. Exact availability varies by vehicle.
VAWS V3.0 vs VAWS V4.0
The VAWS V4.0 is the upgraded successor to the VAWS V3.0. Both provide full-system VAG diagnostics and bidirectional active tests, but the V4.0 introduces several important hardware and usability improvements.
| Feature | VAWS V3.0 | VAWS V4.0 |
|---|---|---|
| VAG vehicle coverage | Yes | Yes + 2 additional vehicle groups |
| Full-system diagnostics | Yes | Yes |
| Bidirectional / Active Tests | Yes | Yes |
| ECU coding / adaptations | Supported | Expanded / dedicated coding menu |
| Display | 4-inch | 5-inch touchscreen |
| Operating system | Traditional interface | Android |
| Software updates | USB | Wi-Fi |
| CAN-FD | Supported | Supported |
| Lifetime free updates | Yes | Yes |
The biggest V4.0 upgrades are the 5-inch Android touchscreen, Wi-Fi updates, two additional vehicle groups and a more direct advanced coding interface. :chatgpt-content-reference{index=”5″}
Two Additional Vehicle Make Groups Included
In addition to the pre-installed VAG software, the VAWS V4.0 allows you to download two additional supported vehicle make groups free of charge.
This gives the device three vehicle groups in total without additional diagnostic software subscription fees. :chatgpt-content-reference{index=”6″}
CAN-FD Support
The iCarsoft VAWS V4.0 supports the newer CAN-FD communication protocol used on newer Volkswagen Group platforms.
It also supports a wide range of traditional automotive communication protocols for older vehicles.
AutoVIN Vehicle Identification
The AutoVIN function can automatically identify supported vehicles through the diagnostic connection, reducing the need to manually enter vehicle information.
If AutoVIN does not recognize a particular vehicle, the manufacturer notes that manual vehicle selection can still be used. :chatgpt-content-reference{index=”7″}
Lifetime Free Wi-Fi Updates
Software updates for the VAWS V4.0 are included for the lifetime of the device. Updates are downloaded directly through Wi-Fi, with no annual diagnostic software subscription fees. :chatgpt-content-reference{index=”8″}
5-Inch Android Touchscreen
The VAWS V4.0 uses a modern Android-based interface with a 5-inch capacitive touchscreen.
- Android operating system
- 5-inch capacitive touchscreen
- 854 × 480 resolution
- Quad-core 1.3 GHz processor
- 32 GB internal storage
- 5000 mAh rechargeable battery
- Approximately 6 hours continuous operating time
- 2.4 GHz Wi-Fi
- USB 2.0
- USB Type-C charging
Diagnostic History and Reports
The VAWS V4.0 stores diagnostic history so previously tested vehicles and scan results can be accessed again later. Reports can also be saved, shared and printed using a compatible Windows computer connected through USB. :chatgpt-content-reference{index=”9″}
Standard OBD2 / EOBD Functions
In addition to VAG-specific diagnostics, the VAWS V4.0 supports standard OBD2 and EOBD diagnostic functions on compatible vehicles.
- Read fault codes
- Clear fault codes
- I/M readiness
- Live data
- Freeze-frame data
- Vehicle information
- Oxygen sensor monitoring
- On-board monitoring
- EVAP system testing
- Pending fault codes
Supported Languages
The VAWS V4.0 supports 15 interface languages: English, German, French, Dutch, Spanish, Czech, Swedish, Russian, Hungarian, Norwegian, Portuguese, Italian, Polish, Danish and Finnish. :chatgpt-content-reference{index=”10″}
Technical Specifications
- Operating system: Android
- Display: 5-inch capacitive touchscreen
- Resolution: 854 × 480
- Processor: Quad Core 1.3 GHz
- Storage: 32 GB
- Battery: 5000 mAh
- Operating time: Approx. 6 hours
- Connectivity: OBDII, USB 2.0 and 2.4 GHz Wi-Fi
- Charging: USB Type-C, 5 V / 2 A
- Vehicle operating voltage: 9–18 V
- Dimensions: 200 × 116 × 30.2 mm
- Weight: Approx. 380 g
- CAN-FD: Supported
- Software updates: Lifetime free Wi-Fi updates
Vehicle Compatibility
The iCarsoft VAWS V4.0 is designed primarily for supported Volkswagen Group vehicles using the standard 16-pin OBD2 diagnostic connection.
Diagnostic coverage, active tests, service functions and ECU coding depend on the exact vehicle model, production year, engine, control unit and vehicle configuration. If you require a specific advanced function, compatibility should be confirmed before purchase.
Why Choose the iCarsoft VAWS V4.0?
- VAG specialist diagnostics
- Full-system fault diagnostics
- Full bidirectional active tests
- ECU coding, adaptations and basic settings
- 43 service and maintenance functions
- CAN-FD support
- Two additional vehicle make groups included
- Modern 5-inch Android touchscreen
- Lifetime free Wi-Fi updates
- No annual diagnostic software subscription














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