Description
2012 BMW X3 3.0L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 BMW X3 3.0L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with no dealer visit required.
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:
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Complete communication & CAN-bus verification
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Sensor input/output and signal integrity checks
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Injector & ignition pulse simulation
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Power, ground, and load-circuit analysis
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Flash memory integrity and checksum validation
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Thermal and voltage-stress testing to confirm reliability
This ensures a fully functional, reliable, plug-and-play module you can install with confidence.
Important Note
Some vehicles equipped with IMMO (Immobilizer) or PATS (Passive Anti-Theft System) may require additional key programming after installation. This is normal for models where security data must be synchronized with the vehicle’s body control system.
For a 100% plug-and-play solution with no relearns, no key programming, and no compatibility issues, we recommend our ECU Cloning Service, which transfers all original security, immobilizer, and configuration data directly into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Paul Edwards –
This ECM arrived quickly and was exactly as described—installation was a breeze with no glitches. Perfect fit for my 2012 BMW X3!
Cooper Cooper –
The ECM arrived quickly and was exactly as described, programmed to my vehicle’s VIN which made installation a breeze. It fit perfectly and the plug-and-play feature worked flawlessly, saving me a lot of time and hassle. After swapping it in, my X3 is running smoothly again with no warning lights or errors. Definitely a reliable solution if you need a reprogrammed ECU.
Keith Mitchell –
The plug-and-play setup made installation a breeze, and their team answered all my questions promptly. Shipping was fast and affordable too!