BMW F70 F74 Scavenge Air Line Fuel Tank Hose Pipe 220i B38N 5A3AFC3

BMW F70 F74 Scavenge Air Line Fuel Tank Hose Pipe 220i B38N is an original fuel system component from the Lines, hoses and pipes group, designed for use in modern BMW 2 Series units. Thanks to its factory geometry and correct diameter, it ensures stable fuel vapor discharge, supporting the proper operation of the B38N engine and the exhaust emission system. It is a practical service solution for users who expect a secure fit and predictable installation.

Specifications and technical data

• SKU: 5A3AFC3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A3AFC3
• Substitutable numbers: 16135A3AFC3, 5A3AFC3
• Part type: Line
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The fuel tank scavenge air line in BMW F70 and F74 models with the 220i B38N engine is responsible for the controlled discharge of fuel vapors from the tank to other system components. A properly functioning line:

• stabilizes pressure in the fuel tank during driving and refueling,
• reduces the risk of leaks in the fuel system area,
• supports the correct operation of emission control systems,
• ensures predictable vehicle behavior under various operating conditions. By maintaining the factory routing and shape of the line, the fuel system remains structurally consistent, which is particularly important in modern turbocharged units.

Benefits of using an original BMW line

Using an original scavenge air line in a BMW F70/F74 with a 220i B38N engine allows for maintaining compliance with the manufacturer's factory specifications. Key advantages include:

• Precise fit to the mounts and routing provided in the body and engine compartment,
• maintenance of the correct stiffness and flexibility of the line within typical operating temperature ranges,
• reduction of the risk of incorrect installation compared to universal replacements,
• consistency with other BMW fuel system components. For users who want to keep the vehicle in a configuration close to factory standards, such a component is a practical service choice, especially during work related to the fuel system and the diagnosis of potential leaks.

Component characteristics and service application

The line belongs to the Lines, hoses and pipes group, which means it is designed to work in a fuel environment and under variable pressure loads. In workshop practice, it is used, among other things, for:

• troubleshooting issues related to fuel system and emission errors,
• repairs after mechanical damage to lines in the tank or chassis area,
• comprehensive maintenance of the fuel system in BMW F-series vehicles. The original origin of the component promotes compatibility with factory connectors, clamps, and brackets, which facilitates installation and subsequent inspection of the line's condition during service checks.

Condition, verification, and part selection

The offered BMW fuel tank scavenge air line comes from a group of used components, which allows for an economical approach to repair while maintaining the manufacturer's original specifications. Before installation, a standard visual inspection for any signs of wear and tear typical for components operating in the engine compartment and chassis area is recommended. To select the correct line for a specific vehicle configuration, it is worth using the manufacturer's markings and vehicle data. This facilitates matching the appropriate body and engine version, which is important for F-family models, where line routing can vary depending on the variant.

Related components and technical knowledge

If you are planning a comprehensive repair or upgrade of the fuel system area in your BMW and need other components from the same group, such as flexible fuel lines, rigid guide pipes, or ventilation sections, check the available parts in the BMW Lines, hoses and pipes category. For users considering the choice between original, replacement, and used components, a comparative material discussing the differences in costs, quality, and fitment according to manufacturer markings may be helpful – you can find it in the article Original, replacement, or used – which car parts are the most cost-effective?.