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.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566






Sean Baker –
Fast shipping and the unit was truly plug-and-play, saving me a bundle compared to dealer prices. Installation went smoothly thanks to their clear communication and professional service.
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.