Description
2014 BMW 335i GT 3.0L AT gas ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2014 BMW 335i GT 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




Matthew Hudson –
Fast shipping and the ECU was perfectly programmed for my BMW 335i GT—installation was a breeze.
Bruce Rogers –
I was really impressed with the quality of this ECM for my 2014 BMW 335i GT. The unit arrived quickly with free shipping, which was a nice bonus. What stood out most was how seamlessly it fit and the plug-and-play setup made installation straightforward. Customer service was also very responsive, answering my questions promptly throughout the process.
Marcus Howard –
I was a bit nervous about ordering an ECM online for my 2014 BMW 335i GT, but this purchase went smoothly from start to finish. The unit arrived quickly with free shipping, which was a nice surprise. What really impressed me was how professional the VIN programming service was—they handled everything so I didn’t have to worry about compatibility issues. The car fired up immediately after installation, and it’s been running perfectly since. Customer support was also very responsive when I had a couple of questions before buying. Overall, a great experience and highly recommended.