iCarsoft DE V4.0
The iCarsoft DE V4.0 delivers comprehensive diagnostics across every onboard ECU—including the engine, transmission, ABS, and SRS/Airbag. Built strictly for serious DIYers and independent repair shops, it goes far beyond basic code reading — delivering OE-level ECU coding, advanced adaptations, and full bidirectional control.
One specialist scanner — tuned to German engineering.
The DE V4.0 is the German-marque specialist of the iCarsoft line: a 5-inch Android handheld pairing full-system diagnostics across engine, transmission, ABS and SRS/Airbag with full bidirectional control, OE-level ECU coding for BMW and the V.A.G group, 48 service functions, CAN-FD, AutoVIN, 15 languages and lifetime free Wi-Fi updates — no subscription, ever.
Engineered for the marques of Germany — and the families they belong to.
One specialist tool, every German automotive group — pick a group below, or search for your make.
Five inches of HD, with all-day stamina in the bay.
iCarsoft DE V4.0 car diagnostic tool is equipped with a 5-inch HD Touch Screen, Android operating system, Quad Core 1.3 GHz processor, 32GB storage and a 5000mAh battery for around 6 hours of continuous use. It offers a user-friendly interface and an ultra-smooth diagnostic experience.
Pay once. Upgrade forever.
Unlike other OBD scan tools on the market that require annual subscription fees, the DE V4.0 offers lifetime free software upgrades. Updates are delivered wirelessly via Wi-Fi, with new diagnostic protocols and vehicle model coverage continuously released.
Built to talk to the newest German ECUs.
CAN-FD (Controller Area Network – Flexible Data-rate) is a next-generation automotive communication protocol adopted by German vehicles.
CAN-FD
DoIP Ready
Next-Gen Ready
Future-Proof
Stop guessing — command the part and watch it answer.
The iCarsoft DE V4.0 bidirectional scan tool supports active component testing and full bidirectional control for most vehicle modules. It sends custom commands and retrieves real-time data to execute targeted functions, including window, mirror, and door lock testing, as well as throttle adjustment — allowing you to pinpoint faults quickly. While ordinary OBD scanners only read fault codes and give limited clues, the DE V4.0 goes further with full bidirectional capability. You can directly command individual components: cycle the ABS pump motor, operate window regulators, activate the fuel pump, control throttle opening, and run output tests on almost all onboard modules. Identify the faulty part in minutes — without relying on trial-and-error.
Cycle the ABS Pump Motor
Operate Window Regulators
Activate the Fuel Pump
Control Throttle Opening
The dealer's coding playbook — now open on your bench.
Maximize your workshop’s capabilities with our professional-grade ECU Coding feature. Seamlessly bridge the gap between component replacement, software troubleshooting, and personalized driving experiences across BMW and V.A.G car groups.
ECU Coding for BMW
ECU Coding for V.A.G
| Vehicle Make / Group | Supported Years | Primary Application | Software Diagnostics Entry Path |
|---|---|---|---|
| For BMW | 2006 – Present | ECU Troubleshooting & Data Recovery | Main Menu ➤ Coding |
| For V.A.G (VW, Audi, Skoda, Seat) | 2010 – Present | Component Adaptation & Parameter Calibration | Main Menu ➤ Coding |
Plug in — your car names itself in seconds.
Skip the manual VIN typing — simply plug in, and the tool identifies your vehicle in seconds. No typos, no extra lookup time. This boosts accuracy, eliminates input errors, and delivers a smoother, more reliable diagnostic experience.
Plug in & go
Zero input errors
Smoother diagnostics
Read every code in the language you think in.
The OBD scanner DE V4.0 supports English, German, French, Dutch, Spanish, Czech, Swedish, Russian, Hungarian, Norwegian, Portuguese, Italian, Polish, Danish, and Finnish.
Forty-eight resets and relearns, ready the moment a job hits the bench.
The DE V4.0 is far more than a basic code reader. It integrates 9 commonly-used service functions for daily maintenance and 39 advanced professional functions for complex repair tasks.
▸ 9 Hot Service Functions covering your daily maintenance needs.
Additional service functions are available in the Miscellaneous section.
See the DE V4.0 in action.
Pick a capability to see what the German specialist does — from full bidirectional control to OE-level ECU coding.
Advanced Bi-Directional Control
Command individual components and watch them respond in real time — cycle the ABS pump motor, operate window regulators, activate the fuel pump and control throttle opening.
Every module the dealer sees — engine to chassis.
In addition to the four standard systems (Engine, ABS, Airbags, and Transmission), the DE V4.0 provides diagnostic coverage for more complex vehicle systems.
Read and Clear DTCs
Pull and clear diagnostic trouble codes across every available module.
Read ECU Information
Read control-unit part numbers, software versions and status.
Read Live Data
Stream live sensor readings in clear on-screen lists.
Access all ECU modules via OBDII-16 DLC
Reach every onboard module through the standard 16-pin port.
Read and Clear Freeze Frame Data
Capture the snapshot stored at the moment a fault was set.
Ten OBD2 modes, one clean emissions check.
Supports all 10 OBD2 test modes for vehicles compliant with 1996+ OBDII/EOBD/JOBD/KOBD/CAN/CAN-FD standards: Read Codes, Erase Codes, I/M Readiness, Live Data, Freeze Frame, Vehicle Information, O2 Monitor Test, On-Board Monitor Test, EVAP System Test, and Pending Codes.
Got a modern classic in the bay? Keep it covered.
The smart auto diagnostic tool DE V4.0 also supports Mercedes-Benz models (with the 38-pin adapter), early BMW models (with the 20-Pin adaptor) and Sprinter vans (with the 14-pin adapter). The corresponding iCarsoft adapters are available separately.
20-pin BMW Adapter
For BMW E30, E36, Early E46, E34, Early E39, E32, E38, E36 Z3, E52, Early E53, E31, E28, E24, E23. Pre 2001 BMW models.
Shop Adapter38-pin Adapter
Compatible with pre-2003 Mercedes-Benz passenger vehicles: C-Class W202 (up to 2000), E-Class W210 (up to 2002), S-Class W140 (up to 1998), CLK-Class W208 (up to 2003), SLK-Class R170, SL-Class R129 (up to 2002) and other similar models.
Shop Adapter14-pin Sprinter Adapter
For Sprinter T1N & early NCV3 vans. 1995-2006 Sprinter models.
Shop AdapterSave it, share it, print it — a clean record every time.
Users can quickly access previously tested vehicle systems and save, share, and print diagnostic reports.
Diagnostic History & Reports
Feedback & PC Printing
The complete technical rundown.
Open the case — everything you need to start.
Optional adapters (Mercedes-Benz 38-Pin, BMW 20-Pin, Sprinter 14-Pin) are sold separately.
Good to know before you buy.
Yes! The iCarsoft DE V4.0 includes lifetime free software upgrades via Wi-Fi. There are zero annual subscription fees or hidden costs. You pay once and get continuous software updates forever.
Not at all. AutoVIN depends on individual vehicle ECU protocols. If AutoVIN skips your car, simply use the Manual Selection mode—all diagnostic and service functions will work perfectly. Meanwhile, please send your VIN to our support team; we will verify it and add it to our database in the next software update.
Please keep ignition on and engine off. Record freeze frame data first before clearing codes.
Persistent hardware faults need physical repair prior to code clearance.
Some fault codes of systems like SRS and ABS can only be cleared after finishing bidirectional tests.
Please check the following steps to troubleshoot:
- Check Vehicle Compatibility: Ensure your vehicle is covered by the DE V4.0, please kindly refer to the vehicle coverage of DE V4.0.
- Turn Off Power-Saving: Disable any eco/battery-saving modes on the vehicle that might shut down modules during diagnosis.
- Update Device: Connect to Wi-Fi and update both the firmware and vehicle software to the latest versions.
- Check Ignition: Ensure the vehicle key is turned to the “ON” position.
Yes. The DE V4.0 supports a wide range of BMW generations — from modern G-chassis and F-chassis models back to most E-chassis vehicles. Pre-2001 E-chassis models (such as E30/E36/early E46) use a 20-pin round port and require the optional 20-pin adapter. For exact compatibility, please send us your VIN.
Manual & software updates.
Download the user manual, check the full function & vehicle coverage list, and review warranty & returns before you buy.
Multi-Language User Manual
The complete user manual for the DE V4.0 — setup, functions, ECU coding and troubleshooting.
Function List & Vehicle Coverage
See exactly which German vehicles and functions this model supports, by brand and system.
Warranty & Returns
Backed by the iCarsoft manufacturer warranty. Review the full warranty terms and the returns & refunds policy.
Available through authorized sellers.
The DE V4.0 is sold through authorized iCarsoft sellers worldwide. Contact our team to confirm compatibility for your vehicle, check stock, or find your nearest authorized distributor.
Interested in the DE V4.0?
This page is for product information. Tell us what you need and our team will get back to you shortly — to confirm vehicle compatibility, request a quote, or find your nearest authorized dealer.
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