BMW 5 Series E60 E61 LCI N47 520d Intercooler Air Charge Line Hose 7803748

The BMW 5 Series E60 E61 LCI N47 520D Intercooler Air Hose is an original intake system component designed for BMW models with the N47 engine. Thanks to its factory geometry and precise fit for the specific body version, it ensures stable airflow to the intercooler and proper cooperation with other components of the turbocharging system. This is a practical solution for users who want to maintain structural consistency and engine operating parameters.

Specifications and technical data

• SKU: 7803748
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7803748
• Substitutable numbers: 11617803748, 7803748, 51477122407, 7122407
• Category: Hoses, Lines & Pipes

Purpose and Function in the Intake System

The intercooler air hose in the BMW 5 Series with the N47 engine is responsible for transporting compressed air between the turbocharger and the charge air cooler. A correctly selected component:

• maintains the sealing of the turbocharging system under variable operating pressure,
• limits pressure drops between the turbine and the intercooler,
• ensures stable airflow, promoting smooth engine operation,
• minimizes the risk of leaks that could cause power loss or enter limp mode.

Thanks to its design tailored to the E60/E61 LCI generation, the hose maintains proper routing within the engine bay, without interfering with other components, and supports the safe operation of the turbocharging system.

Construction, Fitment, and Installation

This part belongs to the Hoses, Pipes, and Tubes group, meaning it is designed to operate in an environment of elevated temperatures and variable pressure. The shape and connection diameters are adapted to the factory fittings in the BMW 5 Series E60/E61 LCI with the N47 520D unit, which facilitates installation and reduces the need for additional modifications.

In practice, this translates to:

• secure seating on factory connectors,
• correct routing of the hose relative to the subframe and engine accessories,
• maintenance of the original airflow path, in line with the manufacturer's specifications.

Such precise fitment is particularly important in vehicles with a compact engine bay, where minor dimensional deviations can cause stress or rubbing against other components.

Product Characteristics and Service Application

The offered hose is a BMW branded part, which helps maintain consistency with the vehicle's factory specifications. In terms of servicing, it is suitable for both replacing a damaged section of the intake system and restoring the original configuration after previous modifications. Original origin simplifies selection for specific engine and body variants.

The product has an assigned OEM part number and related replacement numbers, allowing for precise identification in BMW catalogs and service systems, without the need for uncertainly fitting aftermarket alternatives.

Condition, Verification, and Benefits of Choosing a Used Part

The component is offered in used condition, representing a reasonable compromise between cost and maintaining factory specifications. For many BMW 5 Series E60/E61 LCI owners, choosing this solution allows for reduced expenses while preserving the original intake system design.

In practice, using a used intercooler air hose can:

• expedite repairs compared to waiting for new components,
• facilitate the maintenance of original N47 engine operating parameters,
• reduce the risk of fitment issues common with some aftermarket parts.

System Expansion and Related Components

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and require other parts from the same group, such as additional intake hoses, vacuum hoses, or charge air cooler pipes, check the available parts in the BMW Hoses, Pipes, and Tubes category.

For users interested in a broader perspective on the impact of exhaust and air flow on engine performance and durability, an article discussing exhaust systems and performance elements may be helpful – more information can be found in the material Performance Exhaust Systems: Used Sport Manifolds and Catalytic Converters on the Road.