BMW X5 X6 E70 E71 M57N2 Air Intake Pipe Filter Turbo Hose 7810317

BMW X5 X6 E70 E71 M57N2 Air Intake Pipe Filter Turbo Hose is a component from the Lines, hoses and pipes group, designed for the turbocharging system in BMW M57N2 diesel engines in E70 and E71 models. It is responsible for a stable connection between the turbocharger and the intercooler, ensuring proper compressed air flow and supporting efficient, dynamic engine performance.

Specifications and technical data

• SKU: 8506079
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8506079
• Substitutable numbers: 11618506079, 8506079, 11617810317, 7810317, KZ
• Category: Hoses, Lines & Pipes

Purpose and function in the turbocharging system

The intercooler-to-turbo hose in the M57N2 engine is responsible for transporting compressed air between the turbocharger and the charge air cooler. A properly selected pipe minimizes pressure drops, reduces the risk of leaks, and supports stable engine performance across the full load range. Using a dedicated component for specific BMW E70 and E71 models allows for maintaining the factory characteristics of the turbocharging system.

Benefits of using an original BMW hose

Choosing a hose from the BMW OE group ensures:

• Precise geometric fit for the intake system in E70/E71 models with the M57N2 engine, which facilitates installation and reduces stress on the connections.
• Appropriately selected material stiffness and flexibility, allowing for the compensation of engine vibrations without the risk of depressurization.
• Stable airflow parameters, which translates into repeatable throttle response and predictable vehicle behavior during acceleration.
• Compatibility with factory clamps and mounts, without the need for system modifications.

Performance characteristics and installation

The hose has been designed as a component operating under demanding thermal and pressure conditions typical for turbocharged diesel engines. The design takes into account:

• Resistance to elevated compressed air temperatures and typical operational loads in city and highway driving.
• An internal profile that limits turbulence, which promotes uniform cylinder filling.
• The possibility of installation in place of a worn or leaking component without interfering with other intake system parts.

Thanks to maintaining the factory geometry of the hose, the replacement is predictable for the mechanic, and the risk of fitment issues is limited.

Condition and service application

The component comes from the BMW range and is intended as a spare part in the process of servicing the turbocharging system. It is suitable both for standard replacement of a worn hose and for work related to diagnosing power loss, excessive smoke, or boost pressure issues. Using an original intercooler-to-turbo pipe helps restore proper engine operating parameters without introducing unforeseen changes in airflow.

Integration with other BMW intake system components

In the M57N2 engine turbocharging system, the intercooler-to-turbo hose works with the turbocharger, intercooler, intake manifold, and other air lines and hoses. A properly selected component reduces the risk of leaks, pressure drops, and unwanted noises resulting from system breaches. Replacing the hose is especially recommended when cracks, abrasions, or traces of oil are found on the outer surface, which may indicate a system leak.

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

For drivers interested in a broader look at elements affecting exhaust emissions and engine efficiency, an article discussing the exhaust gas recirculation system and the benefits of using used EGR components may be helpful – more information can be found in the material EGR: what it is and why it is worth considering used EGR valves.