Air Hose BMW E60 E61 LCI N47 520d Diesel Intercooler Charge Line Pipe 7803748

Visual condition of the part

The product shows signs of use visible in the photos.

Air Hose BMW E60 E61 LCI N47 520d Diesel Intercooler Charge Line Pipe is a component from the Lines, hoses and pipes group, designed for the intake system in a diesel engine. It is responsible for the stable routing of compressed air between the intercooler and subsequent system components, which directly affects the engine's performance and efficiency. Using a genuine BMW used part is a sensible choice when servicing the turbocharging system in the 520d model with the N47 engine.

Specifications and technical data

• SKU: 7803748-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7803748
• Substitutable numbers: 11617803748, 7803748
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the intake system

The described air hose operates within the diesel engine's turbocharging system, connecting the air path components between the turbocharger, intercooler, and intake manifold. Its task is to ensure a leak-proof, pressure-resistant flow of air cooled in the intercooler, which translates into stable boost parameters and proper engine management operation.

For the N47 unit in the BMW 5 Series E60 LCI, the proper condition of the intercooler hose is important for:

• maintaining the correct boost pressure across the entire rev range,
• reducing power drops resulting from system leaks,
• proper operation of pressure and airflow sensors,
• stable combustion of the mixture in the diesel engine.

Advantages of using a genuine BMW hose

Choosing a genuine hose from the Lines, hoses and pipes group ensures a perfect fit to the factory geometry of the intake system and compatibility with the mounts and clamps used in the BMW E60 LCI. As a result, installation is predictable, without the need for modifications or the use of additional adapters.

Key benefits include:

• factory fitment for the N47 engine intake system in the 520d version,
• preservation of the original air routing, which reduces the risk of rubbing against other engine bay components,
• consistency with the turbocharging system parameters specified by the manufacturer.

Operational characteristics and installation

The intercooler hose in this model operates under demanding conditions – with variable pressure, temperature, and vibrations generated by the diesel engine. The appropriate design and material of the hose allow for safe handling of operational loads, which limits the risk of cracks, leaks, or a decrease in the efficiency of the turbocharging system.

During installation, it is worth paying attention to:

• proper seating of the hose ends in the intercooler sockets and other system components,
• checking the condition of clamps and connectors to ensure full tightness,
• verifying the hose routing relative to other components to avoid excessive tension or friction.

Application in the N47 diesel engine

The N47 engine in the 520d version uses turbocharging, which is why stable airflow through the intercooler is essential for achieving the correct torque and fuel consumption. The Air Hose BMW E60 E61 LCI N47 520d Diesel Intercooler Charge Line Pipe is one of the elements that directly affects the efficiency of the turbocharging system in a diesel unit.

In the case of symptoms such as power loss, smoke, or a distinct whistling sound in the intake area, checking the condition of the intercooler hose is one of the basic diagnostic steps. Replacing it with a functional part allows for restoring proper engine performance and reducing the risk of further failures.

Expanding BMW intake system service

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as intake ducts, vacuum hoses, or charge air cooling pipes, check the available parts in the BMW lines, hoses and pipes category.

For users interested in the broader context of using genuine used parts in premium class cars, an article describing the advantages of such solutions may be helpful – you can find it here: Mercedes – comfort, prestige, and durability. Why is it worth choosing genuine used parts?.