BMW i3 I01 Breather Pipe Hybrid REx Fuel Tank Ventilation Line Hose 7640120

The BMW i3 I01 Hybrid Fuel Tank Breather Hose is an original fuel system component designed for BMW i3 I01 hybrid models running on petrol. As part of the Fuel Tank and Filler Neck Components group, it is responsible for proper air routing within the fuel tank, supporting stable fuel system operation and reducing the risk of leaks.

Specifications and technical data

• SKU: 7640120
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7640120
• Substitutable numbers: 13907640120, 7640120, BG
• Fuel type: Petrol
• Category: Fuel Tanks & Filler Necks

Purpose and Function in the Fuel System

The fuel tank breather hose in the BMW i3 I01 plays a crucial role in venting and equalizing pressure within the fuel tank. In petrol hybrid vehicles, stable tank operating conditions are particularly important, as the internal combustion engine often operates under variable load cycles, and the fuel system must maintain its seal and consistent parameters.

This component works in conjunction with other parts from the Fuel Tank and Filler Neck Components group, ensuring:

• controlled venting of air from the fuel tank,
• maintenance of proper pressure in the tank during refueling and operation,
• stable operating conditions for other fuel system components.

Compatibility with BMW i3 I01

The offered hose has been specifically designed for the BMW i3 I01 platform, meaning it features a tailored geometry, appropriate connector diameters, and compatibility with the vehicle's mounting system. This ensures a straightforward installation without the need for modifications or adapters.

As a dedicated component for the petrol system in the hybrid BMW i3, the hose is designed to work with the factory fuel tank and associated equipment, maintaining the parameters specified by the vehicle manufacturer. This solution is particularly beneficial for repairs carried out in accordance with BMW's service documentation.

Characteristics of a Used Component

This fuel tank breather hose comes from a secondary market source, allowing for an economical repair while preserving the original design. A used component of this type is an attractive alternative to new replacements, especially when maintaining the original fuel system specification is a priority.

For components within the Fuel Tank and Filler Neck Components group, it is crucial that the hose retains its appropriate stiffness, flexibility, and seal along its entire length. Selecting the correct original hose helps to mitigate the risk of tank venting issues, fuel odors, or diagnostic errors related to the fuel system.

Benefits of Using an Original Fuel Tank Breather Hose

Using a breather hose dedicated to the BMW i3 I01 offers a range of practical benefits:

• Factory Fitment – compatibility with the body structure and fuel system of the BMW i3 I01, with no modifications required.
• Petrol System Integration – the hose is designed to work with tanks and equipment for petrol fuel.
• Reduced Risk of Leaks – a correctly selected component minimizes the likelihood of leaks and improper venting.
• Support for Accurate Diagnostics – maintaining the original configuration facilitates the operation of fuel system monitoring systems.

Selection and Technical Knowledge – Expert Support

When selecting components from the Fuel Tank and Filler Neck Components group for modern vehicles like the BMW i3 I01, it is advisable to rely on OEM data and technical documentation. Expert materials regarding the construction and maintenance of the fuel system can also be helpful. Extended information on fuel tank operation, its interaction with pumps and injectors, and diagnostic principles can be found in the article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, which discusses practical aspects of operation and parts selection.

If you are planning a comprehensive repair or upgrade of the fuel system area in your BMW and require other parts from the same group, such as vent hoses, filler necks, or connection components, check the available parts in the BMW Fuel Tank and Filler Neck Components category.