Product Details
About this part
Know your exact ethanol content in real-time with our new LED display or by using the BMS CANflex, Fuel-It! or JB4 mobile app on your smartphone or tablet.
If you're running E85, you need this kit!
This is a complete plug & play kit to install a flex fuel kit in your S63 equipped BMW in about 30 minutes. (Check compatibility for your platform below)
Our CANbus ECA is compatible with JB4 as well as flash only applications like MHD, BM3, and EcuTek that read the standard 0xEC flex fuel CANbus address format.
We now offer 2 types of kits:
- Complete Kit with CANbus ECA and Universal Harness = Includes universal harness that works for all applications including manual cars and those running a BM3 flex fuel tune.
- Complete Kit with Fuel-It! Bluetooth ECA = Includes a Bluetooth ECA for use with JB4 and the Fuel-It! app. *Does not include CANbus integration
The complete kit with the BMS CANbus ECA includes the following:
- Genuine Continental® ethanol sensor
- BMS CANflex LED ECA for use with JB4, MHD, & BM3
- Billet custom fittings
- Stainless steel braided fuel lines with black nylon sheathing to protect your other engine bay components
CANflex ECA's support all the popular CANbus addresses (0xec, 0x4cb, etc), including custom addressing.
Download the free BMS CANflex app here:
*****Wiring diagram for the new BMS Bluetooth CANflex Harness*****
- Red: (originally Red/Green): 12v switched power via fuse tap or posi-tap
- Black: Chassis ground
- Brown: (originally Orange): CAN-
- Green: (originally Red/Blue): CAN+
- Blue: 5V legacy output for input for input into JB4
The complete kit with Fuel-It! Bluetooth ECA includes the following:
- Genuine Continental® ethanol sensor
- Billet custom fittings
- Stainless steel braided fuel lines with black nylon sheathing to protect your other engine bay components
- Fuel-It! Bluetooth analyzer (iPhone or Android app must be downloaded to use this kit)
- Includes both Bluetooth App & 5v analog output for JB4 or flash tuning
Download the Fuel-It! ECA app here:
Vehicle Fitment
BMW M5
- 2012-2016 F10 M5
- 2017-2023 F90 M5
BMW M6
- 2012-2019 F12/F13/F06 M6
BMW M8
- 2019+ F91/F92/F93 M8
BMW X5M
- 2015-2018 F85 X5M
- 2019+ F95 X5M
BMW X6M
- 2015-2019 F86 X6M
- 2020+ G06 X6M
BMW 7 Series
- 2023+ G70 760iX
*For the BMW F and G-series JB4 platform connect the white wire to position #4 on the JB4 25 pin harness. Select WMI Ethanol Setup option 0 to enable pin location 2/3/4 flex fuel input.
Fitment
Not sure it fits? Contact us with your car's year, model and VIN and we'll help you confirm before you order.
If a part doesn't fit as expected, contact us and we'll work with you to resolve it.
Majority of products have a fitment section in the product description or within the title.
Returns
- Unused, uninstalled parts can be returned or exchanged within 30 days of the order date.
- To start a return: Contact us first, don't use Return to Sender.
- Returns can have up to a 20% restocking fee.
- Built-to-order and special-order items can't be returned or cancelled once production begins.
Shipping
- Orders are processed 7 days a week to ensure your product ships as quickly as possible.
- Inspect parts within 10 days of delivery, and reach out regarding any damage or missing pieces.
See our Tariff Policy
Warranty
- All parts retain the manufacturer's warranty.
- Warranty claims are subject to the manufacturer's approval.