E85 Flex Fuel Kit - BMW™
The TMS Flex Fuel Kit provides a fully plug-and-play solution for integrating flex fuel capability into your BMW™. Designed to fit cleanly within the engine bay, this kit replaces the OEM fuel line and adds CAN-bus controlled ethanol monitoring — no cutting, splicing, or tapping required. Available with or without ethanol sensor components depending on your setup needs.
Includes
CAN + Power Splitter Harness
Connects to the Body Domain Controller located in the passenger footwell behind the kick-plate. Supplies CANBus, power, and ground directly to the ethanol content analyzer.
Fuel Line Assembly and Filter
Custom-fit stainless steel and nylon braided fuel lines with -6AN fittings. Includes a 10-micron stainless steel fuel filter for protection of OEM injectors. Each kit is tailored for precise fitment based on chassis layout.
Optional Components
- Ethanol Content Analyzer
- GM 0–5V Ethanol Sensor
- TMS Ethanol Sensor Cable
Compatible Car Models
B58 GEN 1 Models:
- 2015–2019 BMW™ 340i (F30 / F31 / F34)
- 2016–2019 BMW™ 440i (F32 / F33 / F36)
- 2016–2021 BMW™ M240i (F22 / F23)
B58 GEN 2 Models:
- 2018–Present BMW™ 340i (G20)
- 2021–Present BMW™ 240i (G42)
- 2022–Present BMW™ 440i (G22)
- 2018–Present BMW™ X3M40i (G01)
- 2019–Present BMW™ X3M
G8X Models:
- 2021–Present BMW™ M3 (G80)
- 2021–Present BMW™ M4 Coupe (G82)
- 2021–Present BMW™ M4 Convertible (G83)
- 2023 BMW™ M2 (G87)
Click HERE for installation instructions.
Pickup available at Shop location
Usually ready in 24 hours
Product information
These commodities, technology, or software were exported from the United States in accordance with the Export Administration Regulations. Diversion contrary to U.S. law is prohibited.
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