Fuel-It! FLEX FUEL KIT for S58 BMW X3M & X4M
If you're running E85 or ethanol mixes in your S58 BMW X3M or X4M, you need this kit!
Know your exact ethanol content in real-time via the Fuel-It! or JB4 app on your smartphone or tablet.
This is a complete plug and play kit to install a Bluetooth ethanol sensor in your X3M or X4M in about 30 minutes.
(Check compatibility for your platform below)
The kit includes the following:
- New 5/16" E85 compatible fuel lines for your engine bay
- Genuine Continental ethanol sensor
- Fuel-It! Bluetooth Universal Analyzer (view E85 mix via Fuel-It! app) OR CANflex ECA (no Fuel-It! app support without the Bluetooth ECA), view E85 mix via JB4 or flash logging)
- Plug and play harness
Includes both Bluetooth App & 5v analog output for JB4 or flash tuning
- Bluetooth (iPhone or Android app must be downloaded to use this feature)
- If you are using an Apple product the app can be found by clicking here
- If you are using an Android product the app can be found by clicking here
Replacement fuel lines are also available ala cart.
This kit is compatible with the following
- 2020+ BMW X3M / X3M Competition
- 2020+ BMW X4M / X4M Competition
*For the BMW S58 JB4 platform connect the white wire to position #4 on the JB4 25 pin harness. Select WMI page option 2/3 input to enable.
*We have also made it optional to purchase all the items ala-cart should you choose but for the kit to work it must include the Fuel Lines, Ethanol Sensor, and Analyzer.
*For CANflex adapter JB4 & MHD use engine bay CANbus connections in our guide. BM3 requires connection to CANbus wires on BCM module under passenger side dash.
*If you aren't sure whether this kit fits your car, send us a picture of your engine bay with the engine cover removed to email@example.com
*Ethanol Sensors don't actually read the ethanol content, the readings are based on the absence of gasoline, so if your fuel is contaminated your ethanol readings may be artificially elevated.