BMW EDC17CP09 ECU Read Tool selection: OBDSTAR, Autel or X-PROG3?

In this blog, we’ll break down a real-world attempt to read this Bosch EDC17CP09 (DDE) using different tools, the challenges faced, and the eventual solutions that worked.

Tools Tested for Reading BMW EDC17CP09

1. OBDStar DC706

• Issue: The tool suggested installing a 120 Ohm resistor but still couldn’t establish a connection.
• Solution: Later discovered a missing ignition power pin in the wiring setup — once corrected, the read worked.
• Lesson: Always double-check pinouts and wiring diagrams!

2. Autel IM608 (Partial Success)

• Method: Used the EEPROM section with direct bench connection.
• Successfully Read:
• ISN (Immobilizer Security Number) — Useful for module transfers.
• Flash files — Required soldering a boot pin and using the XP400 Pro programmer.
• Limitation: Couldn’t extract full EEPROM files via OBD alone.

3. X-prog3/ Launch X-431 Tablet ( — Success!)

• Method: Used bench mode with a custom harness.
• Successfully Read:
• Full EEPROM & Flash files — Required direct chip access.
• File Transfer Issue: Couldn’t directly copy files to USB — had to email them via Gmail from the tablet.

CG FC200 Bench Mileage Correction for VW DQ200 0AM

CG FC200 supports VAG DQ200, VL381, DQ250, DL381 gearbox mileage correction on bench. Here we will show how to correct mileage for DQ200 (0AM) gearbox.

Select VAG Temic DQ200Dxx TC1766 gearbox in software. Check wiring diagram and connect gearbox with FC200.

Connect CAN-L, CAN-H, 2x12V and GND cables.

Identify gearbox.

The mileage data is stored in EXT Dflash.

So we reads EXT Dflash data only.

Read and save ext Dflash data.

Go back to FC200 main menu. Select Data Processing function- VW gearbox mileage correction- DQ200 TC1766.

Upload ext dflash data just saved.

Select mileage correction.

FC200 will detect current mileage. Enter the correct mileage.

Save new mileage data.

Go back to DQ200 menu.

Select Write EXT Dflash.

Upload new ext Dflash data.

Correct checksum for flash and write data successfully.

Disconnect gearbox and install it back to vehcle.

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Best ECU Tuning Tool: Flex vs KESS3 vs Autotuner vs Dfox

Here’s a comparison of the Magic Motorsport Flex, Alientech KESS3, Autotuner, and DFOX ECU tuning tools based on their features, capabilities, and use cases. This breakdown aims to help you understand their strengths and weaknesses for ECU tuning and remapping tasks.

1. Magic Motorsport Flex

• Overview: Developed by Magic Motorsport, an Italian company, Flex is a versatile tool designed for both ECU and TCU (transmission control unit) programming. It’s known for its flexibility and broad vehicle coverage.
• Modes: Supports OBD, Bench, and Boot tuning modes, making it adaptable to various tuning scenarios.
• Vehicle Coverage: Extensive, covering cars, trucks, bikes, tractors, and more. It excels particularly with TCU tuning (e.g., gearbox remapping), which sets it apart from many competitors.
• Performance: Fast read/write speeds (e.g., 2–3 minutes for reading, depending on the ECU). It’s praised for stability and reliability, especially in newer vehicles.
• Pricing: Starts around €5,800+VAT for a master version. Offers customizable protocol packages, but requires a subscription for updates and support.
• Support: Highly regarded for excellent customer service, with a robust helpdesk and a 5-year warranty. Support is primarily in English.

Pros:

• Superior TCU tuning capabilities.
• Can upgrade/downgrade ECUs and recover bricked units.
• Intuitive hardware with accessories like the Flexbox for bench work.

Cons:

• Higher initial cost compared to some competitors.
• Software interface (FLEX) can have a steeper learning curve.
• Limited OBD coverage for some older ECUs compared to bench/boot options.

2. KESS3 (Alientech)

• Overview: KESS3 is the latest evolution from Alientech, replacing KESSv2 and K-TAG. It combines OBD, Bench, and Boot tuning into a single, powerful device.
• Modes: OBD, Bench, and Boot, with the ability to add protocols as needed.
• Vehicle Coverage: Broad, including cars, trucks, bikes, boats, and agricultural vehicles. It’s particularly strong with older and newer European models (e.g., VAG, PSA, Toyota).
• Performance: Features a powerful microprocessor (7x faster than KESSv2), enabling quick read/write operations (e.g., seconds to minutes). Automatic communication line recognition enhances ease of use.
• Pricing: Starts at €700 for hardware, but protocols are sold separately (e.g., €1,600+ depending on configuration). Annual subscription required for updates.
• Support: Solid support from Alientech, with a global network. Known for reliability but occasionally criticized for slower response times compared to Magic Motorsport.

Pros:

• Highly versatile with customizable protocol options.
• Excellent for OBD tuning across a wide range of vehicles.
• User-friendly interface with fast operation.

Cons:

• Subscription costs add up over time.
• Some users report issues with specific ECUs (e.g., BMW MD1/MG1 via OBD).
• Less focus on TCU tuning compared to Flex.

3. Autotuner

• Overview: Launched in 2019, Autotuner is a newer player that gained popularity for its simplicity and coverage of modern vehicles, especially German brands like BMW and Mercedes.
• Modes: Supports OBD, Bench, and Boot tuning in one compact device.
• Vehicle Coverage: Strong with newer vehicles (post-2014), particularly German cars. Less comprehensive for older ECUs or non-European brands compared to Flex or KESS3.
• Performance: Very fast read/write times and intuitive software. It also offers data logging, which is valuable for custom tuning (e.g., Stage 3).
• Pricing: Around €2,900-€4,400+VAT for a master version, with no annual subscription fees — a significant cost advantage.
• Support: Mixed reviews; some praise its responsiveness, while others find it lacking or slow to resolve issues.

Pros:

• No subscription fees, reducing long-term costs.
• Compact and plug-and-play design.
• Excellent for modern German vehicles via OBD.

Cons:

• Limited coverage for older vehicles, trucks, or bikes.
• Weaker TCU support compared to Flex.
• Customer support can be inconsistent.

4. DFOX

• Overview: DFOX is an ECU tuning tool from an Italian manufacturer, often seen as a cost-effective alternative with a focus on specific vehicle types.
• Modes: Supports OBD, Bench, and Boot tuning, similar to the others.
• Vehicle Coverage: Decent coverage, particularly for European cars (e.g., BMW, VAG). It’s less broad than Flex or KESS3 but competes well with Autotuner for newer models.
• Performance: Reliable for supported ECUs, with fast operation. Some users prefer it over others for its stability on certain protocols.
• Pricing: Typically lower than Flex and KESS3, though exact costs vary by distributor. Often requires a subscription for updates.
• Support: Generally good, though less documented compared to the bigger brands. Response times can vary.

Pros:

• Competitive pricing for the features offered.
• Stable performance on supported ECUs.
• Good for BMW and VAG tuning.

Cons:

• Less comprehensive vehicle coverage than Flex or KESS3.
• Not as well-known or widely supported as competitors.
• Limited TCU tuning capabilities.

Which Tool Should You Choose?

• Magic Motorsport Flex: Ideal if you need extensive TCU tuning, broad vehicle coverage (including trucks/tractors), and top-tier support. Best for professionals prioritizing versatility and gearbox work.
• KESS3: Perfect for tuners wanting a fast, reliable all-in-one tool with strong OBD performance and wide compatibility. Great for those who tune a variety of vehicles and don’t mind subscription costs.
• Autotuner: Best for newer German vehicles (e.g., BMW, Mercedes) and tuners who value no subscription fees and simplicity. Excellent for small shops or enthusiasts focusing on modern cars.
• DFOX: A solid budget option for European car tuning, especially BMW/VAG. Good for those starting out or needing a reliable secondary tool.

Ultimately, your choice depends on your target vehicles, budget, and whether you prioritize TCU tuning or long-term cost savings. For maximum coverage, many professionals pair tools (e.g., Flex + KESS3 or Autotuner) to handle all scenarios.

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Alientech KESS3 or AutoTuner Which ECU Tool is Best

In the fast-evolving world of automotive tuning, choosing the right ECU (Engine Control Unit) tuning tool can make or break your experience — whether you’re a professional tuner or an enthusiast looking to optimize your vehicle’s performance. Two standout contenders in this space are the Alientech KESS3 and the Autotuner. Both tools have earned strong reputations, but they cater to slightly different needs and preferences. So, what sets them apart? Let’s break it down by comparing their features, performance, compatibility, and overall value.

Overview of the Tools

The Alientech KESS3 is the latest flagship product from Alientech, an Italian company with over three decades of experience in ECU remapping. Launched as a successor to the popular KESSv2 and K-TAG, the KESS3 is a versatile, all-in-one tool that combines OBD (On-Board Diagnostics), bench, and boot mode tuning capabilities. It’s designed for flexibility, power, and ease of use, appealing to both beginners and seasoned professionals.

The Autotuner, introduced in 2019, is a relative newcomer but has quickly gained traction among tuners worldwide. Developed by professional tuners, it’s marketed as a fast, intuitive, and powerful solution that also supports OBD, bench, and boot modes. Its rise in popularity stems partly from its ability to tackle newer vehicles, especially certain BMW and Mercedes models, via OBD — a feat that older tools initially struggled with.

Key Differences

Performance and Speed

• KESS3: Alientech boasts that the KESS3 is equipped with the most powerful microprocessor in the tuning market — seven times faster than its predecessor, the KESSv2. This translates to quicker read and write times, especially in bench and boot modes. The tool’s new software, Alientech Suite, is optimized for speed and simplicity, reducing the time it takes to complete a tuning job.
• Autotuner: Speed is one of Autotuner’s biggest selling points. It’s often praised for being one of the fastest tools on the market, particularly for OBD operations. For tuners working on multiple vehicles daily, this efficiency can mean more jobs completed and higher revenue. However, its performance edge may be less pronounced in bench or boot scenarios compared to the KESS3’s robust processor.

Vehicle Compatibility

• KESS3: Alientech’s long history gives it an edge in vehicle coverage. The KESS3 supports thousands of vehicles — cars, trucks, motorcycles, boats, and even agricultural machinery — dating back to 1999. Its extensive protocol library (over 6,500 as of recent updates) makes it a go-to for tuners working on a diverse range of older and newer models, including many from the U.S., Asia, and Europe.
• Autotuner: While Autotuner supports a wide range of vehicles, its strength lies in newer models, particularly German brands like BMW, Mercedes, and Porsche built after 2014. It excels with modern ECUs (e.g., Bosch MG1 and MD1 series) and offers OBD tuning for vehicles that other tools might require bench access for. However, its protocol list (around 1,000) is narrower, and it lacks the same depth for older vehicles or non-European brands like Toyota or Isuzu.

Tuning Modes and Flexibility

• Both tools offer OBD, bench, and boot mode tuning, making them versatile all-in-one solutions. However, their approaches differ slightly:
• KESS3: Its integration of all three modes into a single device is seamless, with protocols sold separately so you can customize it to your needs (e.g., cars only, or add trucks later). It also includes advanced features like DynoDrive (a performance verification tool) and plans for GPS and Bluetooth integration, hinting at future-proofing.
• Autotuner: Similarly versatile, Autotuner stands out with built-in data logging, allowing tuners to monitor live ECU data — a critical feature for custom or Stage 3 tuning. However, it lacks some of the KESS3’s planned extras and doesn’t offer TCU (Transmission Control Unit) cloning, which the KESS3 supports.

Cost and Licensing

• KESS3: The KESS3 requires an initial hardware purchase (starting around €700) and protocol activations tailored to your needs (e.g., cars, bikes, trucks), which can add up. It also comes with a yearly subscription fee for software updates and support, a cost many tuners justify given Alientech’s extensive coverage and assistance. There’s no API charge, which is a plus for master tuners.
• Autotuner: Priced higher upfront (around €2,900 for a full kit), Autotuner has no annual license fee, making it appealing for those wary of recurring costs. However, it does charge for API access, which some master tuners find less flexible or cost-effective compared to the KESS3’s model.

Support and Reliability

• KESS3: Alientech’s technical support is a standout feature, often described as the largest and most responsive in the industry. With a global network and decades of expertise, they’re quick to assist with recovery or troubleshooting — crucial when an ECU job goes awry. Early launch issues (e.g., supply chain delays post-COVID) have largely been resolved by 2025.
• Autotuner: Support exists, but it’s not as robust as Alientech’s. Response times can lag, and without a subscription model, some argue the support infrastructure isn’t as incentivized to stay top-tier. That said, Autotuner’s reliability is solid, especially for its target audience of newer German vehicles.

Which Tool Is Right for You?

• Choose the Alientech KESS3 if:
• You need broad vehicle coverage, including older models and non-European brands.
• You value extensive technical support and are comfortable with a subscription model.
• You work on diverse vehicle types (trucks, bikes, etc.) or want a future-proof tool with planned upgrades.

Choose the Autotuner if:

• You focus on newer vehicles, especially German brands like BMW or Mercedes.
• Speed and data logging are priorities for your tuning process.
• You prefer a one-time purchase without annual fees, despite the higher initial cost.

Final Thoughts

The Alientech KESS3 and Autotuner are both exceptional tools, but they shine in different arenas. The KESS3 is the veteran heavyweight — versatile, reliable, and backed by a massive support network. The Autotuner, meanwhile, is the agile upstart — fast, modern, and tailored to newer European cars. Ultimately, your choice depends on your specific tuning goals, budget, and the vehicles you work with most. For many professionals, the real answer might be owning both to cover all bases — but if you’re picking one, weigh your priorities carefully. In the dynamic world of ECU tuning, both tools prove that innovation and performance go hand in hand.

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New FormulaFlash V1.0.2.0 Update: GM Delco ECM IMMO Off Feature

FormulaFlash ECU and TCU programmer released new software version 1.0.2.0 on March 19th, 2025.

• Added Delco Exx series E37/ E39/ E39A/ E67/ E78/ E87/ E98/ E92/ E80/ E83 One-click Immo off + VIN modification
• Added MG1UA008/MG1US008/ MG1UAUP8/ MG1US708 series FLASH read, write and Checksum, as well as One-click power upgrade (stage1)
• Added SIM2K-51.X/SIM2K-D51/ SIM2K-34/ SIM2K-33/SEC60 Wuling Bench mode read and write + VIN correction
• Add SIMOS8.5/SIMOS8.6 MAPS read and write + Checksum
• Added Bosch ME7.4.4/ME7.4.5 (TYPE96) one-click Immo off
• Added Kefico MEG17.9.8 + one-click Immo off
• Added BMW MSV90 one-click power upgrade (stage1)
• Added BMW MSD81/ MSD85/ MSD87/ MSV80/ MSV90 One-click water temperature modification
• Added ME17.8.8/ ME17U6/ ECU6.1/ MED17.8.10/ MED17.8.2/ MEV17.2.1/ MEV17.4.6/ MEVD17.2/ MEVD17.2.3/ MEVD17.2.5/MEVD17.2.6/MEVD17.2.9/MEVD17.2.G/ MEVD17.2.P/ MEVD17.2.4/ MG1CS003/ MG1CS201/ MG1CS024/ MG1CS049/ MEV17.2/ MED17.2/ MEV17.2.2/ MG1UA008/ MG1US008/ MG1US708 One-click water temperature modification
• Added Bosch system ME788 and M7 series VIN correction + EEPROM
  Read, write and Checksum
• Added Delphi DCM3.7AP, MT34 eeprom&flash read and write
• Added Continental GPEC2, GPEC2A, GPEC3, GPEC4, SIM271KE ExtEE-PROM&Flash read and write by boot mode
• Added Marelli 8GMW, 8GSF, 8GSW, IAW 4AF HW204, IAW 4AF HW407, IAW 59F HW<100, IAW59FHW603/HW606, IAW 5AFHW303/HW306, IAW 5AF HW603/HW607, MJD 8F2, MJD8F3, MULTIET MJD 6F3, 8GMF HW02, IAW 5SF8, IAW 5SF9 eeprom&flash read and write and Checksum by both OBD & Bench mode
• Added Bosch system ME7.9.3, ME7.5–1M eeprom&flash read and write
• Added French language support