Description
2017 BMW 340i 3.0L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2017 BMW 340i 3.0L AT gas models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with our cloning service.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Zachary Lopez –
I was a bit nervous about ordering an ECU online for my 2017 BMW 340i, but this experience exceeded my expectations. The unit arrived quickly with free shipping, which was a nice bonus. What really impressed me was how professional their programming service was—they had it VIN programmed and ready to go right out of the box. Installation was straightforward, and the car runs perfectly now without any hiccups. The team also stayed in touch throughout the process, answering my questions promptly and making sure I was completely satisfied. Highly recommend this seller if you need a reliable ECM replacement.
Benjamin Moore –
The ECM arrived quickly with free shipping and was perfectly programmed for my 2017 340i—installation was seamless. Customer support was super responsive and made the whole process hassle-free.
Kyle Palmer –
I was impressed with how smooth the whole process went from start to finish. The 2017 BMW 340i ECM arrived quickly, and the fact that it was VIN programmed already saved me a lot of hassle. Their team kept me updated throughout, answering every question I had with clear and prompt replies. Installation was straightforward, essentially plug-and-play, which made a huge difference since I’m not a mechanic. Overall, the quality feels top-notch, and I’m already noticing improved performance. Definitely recommend this seller for anyone needing ECU replacements.
Michael Nichols –
I was impressed by the quality and reliability of this ECM for my 2017 BMW 340i. The unit arrived quickly with free shipping, which was a nice bonus. What really stood out was the professional programming service they provided — it was set up perfectly for my VIN, and installation was seamless. Their customer support also answered all my questions promptly, making the whole process stress-free.