Description
This BMW CANbus Flex Fuel Kit is a complete plug and play ethanol content monitoring system designed for the BMW S58 engine platform. It is engineered for vehicles running E85 fuel and for builds incorporating port injection, providing accurate ethanol content data for advanced tuning setups.
Installation is designed to be quick and straightforward, with the full system typically installable in approximately 30 minutes depending on configuration. The kit integrates directly into the vehicle’s fuel system and ECU environment for real-time ethanol monitoring and tuning support.
The CANflex Ethanol Content Analyzer (ECA) broadcasts ethanol content data through multiple output methods, making it compatible with a wide range of tuning platforms and configurations.
Data Output and Integration Features
- CANbus integration with user selectable addressing
- Compatibility with MHD tuning platform
- Compatibility with BootMod3 (BM3) tuning platform
- Compatibility with EcuTek tuning systems
- Compatibility with JB4 systems
- Bluetooth connectivity via CANflex mobile application
- LED display integrated into the head unit for real-time ethanol reading
- 5V analog output for legacy ECU or non-CANbus systems
Harness Options
The system is available in two wiring configurations:
- Plug and play harness for supported applications
- Universal harness for manual transmission vehicles and BM3 setups requiring CANbus connection via posi-taps
Vehicle Fitment
This flex fuel system is designed for BMW vehicles equipped with the S58 engine platform:
- BMW G87 M2 (2023+)
- BMW G80 M3 (2021+)
- BMW G82 M4 (2021+)
- BMW G83 M4 Convertible (2021+)
- BMW M4 CSL (2023+)
- BMW F97 X3M (2020+) and all variants
- BMW F98 X4M (2020+) and all variants
Included Components
- Genuine Continental ethanol content sensor
- CANflex LED ethanol content analyzer (ECA) unit
- Stainless steel braided fuel lines with protective black nylon sheathing
- Custom fuel fitting with integrated 1/8” NPT port for optional port injection expansion
- Plug and play wiring harness (if selected)
- BMW / Supra accessory harness compatible with S58 and B58 platforms
System Features
- Plug and play installation design
- Real-time ethanol content monitoring
- Full CANbus ECU integration capability
- Bluetooth app monitoring for iOS and Android
- Compatible with major BMW tuning platforms
- Supports E85 and blended ethanol fuels
- Designed for high-performance and modified BMW S58 engines
- Expansion-ready for port injection systems
- Built for motorsport and street performance applications
Performance Application
This flex fuel kit is designed for performance-focused BMW builds running ethanol blends or full E85. It enables precise fuel composition monitoring, allowing tuners to optimize ignition timing, fueling, and boost strategies safely and effectively. It is especially beneficial for high-power S58 applications where ethanol content consistency is critical for engine safety and performance optimization.
