Loading...

Bmw I8 Fuel Feed Lines

Bmw I8 Fuel feed lines

Starting at $112.95, AutoBuffy stocks 1 fuel feed lines from Standard Ignition to fit the Bmw I8. The fuel feed line carries pressurized fuel from the tank or pump to the engine's injectors or carburetor. A cracked, kinked, or leaking line starves the engine of fuel, creates a fire hazard, and will leave you stranded if ignored.

Signs your Bmw I8 needs a new fuel feed line

  • Smell of raw gasoline inside the cabin or near the engine bay, especially after the engine warms up
  • Visible fuel drips, wet spots, or staining along the undercarriage or firewall where the line runs
  • Engine hesitates, stumbles, or surges under acceleration due to inconsistent fuel delivery
  • Hard starting or extended cranking because low line pressure prevents the injectors from priming properly
  • Fuel pressure gauge reads below spec at idle or drops off rapidly after the pump shuts down
  • Check Engine light with lean-condition codes (e.g., P0171/P0174) alongside low fuel pressure readings

Which fuel feed line should you buy for your Bmw I8?

The right fuel feed line depends on whether you need a rigid hard line, a flexible rubber hose, or a pre-formed nylon line — and whether it serves a high-pressure EFI system or a lower-pressure carbureted one. OE-match fitment is strongly preferred here because fuel lines must handle specific pressure ratings, routing geometry, and end-fitting types. Confirm the fitting style (quick-connect vs. threaded) and the pressure rating before purchasing.

OE-Replacement Nylon/Plastic Line
Best for
Exact-fit restoration with no modification
What you get
Pre-formed to factory routing, correct end fittings, rated for OE fuel pressure — bolt-on installation
Stainless-Braided Flexible Hose
Best for
Performance builds or when routing flexibility is needed
What you get
Higher burst pressure tolerance, abrasion resistance, stainless outer braid — requires compatible AN or hose-barb fittings
Rubber Fuel-Injection Hose (EFI-rated)
Best for
Short repair sections or when the rigid line is intact but an end section is soft
What you get
Fuel-resistant nitrile or Viton inner, rated 50–100 psi, sold by the foot — requires clamps and correct ID match
Complete Pre-Bent Steel Hard Line Kit
Best for
Rusty or crushed OE steel lines on older vehicles
What you get
Mild steel or stainless tubing bent to factory specs, includes compression or bubble-flare ends — closest match to original steel lines

Fuel feed lines brands we stock for your Bmw I8

Standard Ignition
1 option · from $112.95

Replacing the fuel feed line on a Bmw I8

Moderate⏱ 1–3 hoursFuel line disconnect tool set (spring-lock or quick-connect style)Flare-nut wrenches or line wrenches (to avoid rounding fittings)Hose clamp pliers or a flat-blade screwdriverCatch pan and shop rags for fuel spillageJack stands or vehicle lift for undercarriage access

Begin by relieving fuel system pressure using the fuse-pull method, then disconnect the battery. Use the correct disconnect tool for your fitting type — forcing a quick-connect without the proper tool damages the retaining clips. Route the new line exactly as the original, secure all brackets and retaining clips, then restore power and run the pump to check for leaks before starting the engine.

Frequently asked questions

How much does it cost to replace fuel feed lines on a Bmw I8?
Parts for the Bmw I8 start at $112.95 on AutoBuffy. A straightforward rubber section or nylon line replacement is inexpensive; a full hard-line kit or stainless-braided assembly costs more. Add shop labor of one to three hours if you are not doing it yourself, since access varies significantly by body style and routing.
Is it safe to drive a Bmw I8 with a leaking fuel feed line?
No — a leaking fuel feed line is a fire hazard and should be treated as an immediate repair. Pressurized fuel spraying near hot exhaust components or an ignition source can ignite. Park the vehicle, avoid running the engine, and replace the line before driving again. This is not a wait-and-see repair.
How long do fuel feed lines last on a Bmw I8?
Metal hard lines can last the life of the vehicle on non-salt-belt cars but corrode quickly in rust-prone climates. Rubber and nylon lines typically last many years but degrade from heat cycling, ethanol-blended fuel exposure, and age. Inspect flexible sections during every major service; replace any line that shows cracking, swelling, or surface checking.
Can I use regular fuel hose for the feed line on a Bmw I8?
Only if it is specifically rated for fuel injection pressure. Standard low-pressure heater or vacuum hose will swell and fail under EFI system pressure, creating a dangerous leak. Always use hose labeled 'EFI-rated,' 'fuel injection,' or marked with a PSI rating that meets or exceeds your system's operating pressure.
What causes fuel feed lines to fail on the Bmw I8?
The most common causes are corrosion on steel lines in salt-belt climates, heat-induced cracking of rubber sections near the exhaust, abrasion from contact with the chassis or other components, and degradation from ethanol-blended fuels attacking older rubber compounds. Road debris impact and improper routing that creates sharp bends also contribute to early failure.
Do I need to depressurize the fuel system before replacing the feed line on a Bmw I8?
Yes, always. Fuel feed lines on EFI vehicles hold pressure even with the engine off. Remove the fuel pump fuse or relay and crank the engine briefly to bleed residual pressure, or use a fuel pressure gauge with a bleed valve. Skipping this step will result in a pressurized spray of fuel when the line is disconnected.

Shop fuel feed lines by year for the Bmw I8

20192018201720162015

More parts for your Bmw I8

Parking Aid SensorFuel Injector ConnectorEngine Oil CoolerEngine Auxiliary Water PumpA/C System Seal KitHigh Intensity Discharge (HID) Headlight Control ModuleControl Arm & Ball Joint AssemblyRide Height Sensor

Fuel feed lines for other Bmw models

Bmw 740e xDriveBmw X2Bmw 430iBmw X1Bmw 330i xDriveBmw X4