Description
The Fuel-It! BMW Bluetooth Flex Fuel Kit is a complete plug-and-play solution designed for BMW vehicles equipped with the S63TU engine. This system allows you to monitor real-time ethanol content when running E85 or ethanol-blended fuels, giving your tuning system the data it needs for optimal performance, safety, and consistency.
Designed for quick installation, this kit can be installed in approximately 30 minutes and integrates seamlessly with popular tuning platforms including JB4, MHD, BM3, and EcuTek. Ethanol content can be viewed through an LED display, compatible mobile apps, or directly through supported CANbus systems depending on the kit configuration selected.
This kit is ideal for enthusiasts pushing higher power levels on ethanol fuel and requires no permanent modifications.
Key Features
• Real-time ethanol content monitoring
• Plug-and-play installation for BMW S63 platforms
• Compatible with JB4, flash-only tunes, or standalone monitoring
• Supports E85 and ethanol-blended fuels
• High-quality components designed for durability and reliability
• Mobile app monitoring available via Bluetooth or CANbus
• Approximately 30-minute install time
Available Kit Options
Complete Kit with CANbus ECA and Universal Harness
• Genuine Continental® ethanol sensor
• BMS CANflex LED ECA for JB4, MHD, and BM3
• Universal wiring harness compatible with manual and automatic vehicles
• Billet custom fuel fittings
• Stainless steel braided fuel lines
• Black nylon sheathing for engine bay protection
• Full CANbus integration for supported tuning platforms
CANflex ECA supports all popular CANbus ethanol addresses including 0xEC and 0x4CB, as well as custom addressing.
Complete Kit with Fuel-It! Bluetooth ECA
• Genuine Continental® ethanol sensor
• Fuel-It! Bluetooth ethanol analyzer
• Billet custom fuel fittings
• Stainless steel braided fuel lines
• Black nylon protective sheathing
• Bluetooth app compatibility for iOS and Android
• Includes both Bluetooth monitoring and 5V analog output
• Compatible with JB4 and flash tuning
• Does not include CANbus integration
Wiring Information for BMS Bluetooth CANflex Harness
• Red wire: 12V switched power via fuse tap or posi-tap
• Black wire: Chassis ground
• Brown wire: CAN negative
• Green wire: CAN positive
• Blue wire: 5V legacy output for JB4 input
Additional Notes
• Replacement fuel lines are available separately
• Ethanol content can be viewed via LED display or supported mobile apps
• Smartphone or tablet required for Bluetooth functionality
Vehicle Fitment
BMW M5
• 2012–2016 BMW F10 M5
• 2017–2023 BMW F90 M5
• 2023+ BMW G9X M5
BMW M6
• 2012–2019 BMW F12 M6
• 2012–2019 BMW F13 M6
• 2012–2019 BMW F06 M6
BMW M8
• 2019+ BMW F91 M8
• 2019+ BMW F92 M8
• 2019+ BMW F93 M8
BMW X5M
• 2015–2018 BMW F85 X5M
• 2019+ BMW F95 X5M
BMW X6M
• 2015–2019 BMW F86 X6M
• 2020+ BMW G06 X6M
BMW 7 Series
• 2022+ BMW G7X 760iX
JB4 Installation Note
For BMW F-Series and G-Series vehicles using the JB4 platform, connect the white wire to position #4 on the JB4 25-pin harness. Select the WMI Ethanol Setup option 0 to enable pin locations 2, 3, and 4 for flex fuel input.
This flex fuel kit provides the accuracy, reliability, and seamless integration needed to safely maximize performance on any S63TU-powered BMW running ethanol blends.
