Fuel Additive Hose BMW F40 F48 B37 B47 Diesel Metering Line SCR AdBlue 7432455

Fuel Additive Hose BMW F40 F48 B37 B47 Diesel Metering Line SCR AdBlue is an original SCR system component responsible for the precise delivery of AdBlue solution to the exhaust gas treatment system. Thanks to its factory origin and perfect fit for specific generations of diesel engines, it ensures stable operation of the NOx emission reduction system and the proper functioning of the entire exhaust treatment system in BMW vehicles.

Specifications and technical data

• SKU: 7432455
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7432455
• Substitutable numbers: 16197432455, 7432455, BG
• Fuel type: Diesel
• Category: Vacuum Pumps

Purpose and function in the SCR system

This AdBlue metering hose operates within the Diesel engine supply system with SCR technology, where accurate dosing of urea solution into the exhaust stream is critical. The component is responsible for:

• transporting the AdBlue medium from the metering unit to the appropriate point in the exhaust system,
• maintaining tightness and resistance to operating pressure within the system,
• working in conjunction with the factory dosage control in B37 and B47 engines,
• maintaining operating parameters in accordance with the vehicle manufacturer's requirements.

As a result, the emission reduction system operates in a stable manner, which helps maintain correct emission values and ensures the proper performance of the power unit.

Compatibility with BMW F40 and F48 models

The hose has been designed specifically for use in modern compact BMW F40 and F48 series models equipped with B37/B47 family diesel engines. This means that the geometry, connection diameters, and routing of the hose are adapted to the factory installation path in these bodies, which facilitates assembly and reduces the risk of stress or leaks.

The original BMW brand origin translates into maintaining compliance with the factory operating parameters of the SCR system, without the need for modifications to the installation or the use of additional adapters.

Technical characteristics and operational role

As a component of the fuel additive metering system, the hose operates in a demanding environment – near the exhaust system and in variable temperature conditions. The applied construction ensures:

• resistance to the AdBlue medium and typical operating conditions in the engine compartment and chassis,
• stable flow parameters, essential for correct dosing,
• compatibility with factory connectors and mounts in BMW F40/F48 vehicles.

The proper condition of the metering hose has a direct impact on the operation of the SCR system – leaks, kinks, or damage can cause engine control unit errors, a decrease in emission reduction efficiency, and the power unit entering limp mode. Using a properly selected, original component helps to mitigate these risks.

Condition, origin, and assembly aspects

The offered AdBlue metering hose is a used component, sourced from vehicle dismantling, which allows for cost-effective SCR system repair while maintaining factory specifications. This type of part is particularly attractive for maintenance repairs where the priority is to combine original quality with a reasonable cost.

Thanks to the preservation of the original geometry and connections, the hose can be installed in place of the damaged component without the need for installation modifications. In practice, this means:

• easier fitment to existing brackets and hose routing,
• preservation of the factory metering line path,
• reduction of time required for replacement compared to universal solutions.

Technical support and selection by numbers

For the correct selection of an AdBlue metering hose for a specific vehicle configuration, it is crucial to use identification data, such as the OEM part number, interchangeable numbers, or markings used by the manufacturer. In combination with the VIN, this allows for verifying the compatibility of the component with a given engine and body version.

If you would like to deepen your knowledge regarding the diagnostics and operation of the supply system in diesel vehicles, it is worth reading an article describing the operation of injectors, pumps, and the fuel tank, as well as the principles of selecting parts by VIN and OEM – details can be found in the material: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

If you are planning a comprehensive repair or upgrade of the vacuum and metering area in your BMW and need other components from the same group, such as hoses, connectors, or modules working with vacuum, check out the available parts in the BMW Vacuum Pumps category.