Return Pipe BMW E60 E65 E87 E90 Hose Engine 7527570

Return Pipe BMW E60 E65 E87 E90 Hose Engine is an original crankcase ventilation system component designed for select BMW 5, 7, 1, and 3 Series models. Thanks to its factory geometry and precise fit for specific engine configurations, it ensures stable oil vapor routing and proper operation of the intake system. Using this OEM component allows for an economical yet technically correct replacement of a worn-out breather hose.

Specifications and technical data

• SKU: 7527570
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7567801
• Substitutable numbers: 11157567801, 7567801, 11157527570, 7527570
• Category: A/C Hoses & Fittings

Purpose and function of the breather hose

The breather hose in BMW engines is responsible for the controlled discharge of gases from the crankcase into the intake system, which reduces engine overpressure and helps maintain stable operating parameters. A properly selected breather hose:

• ensures a tight connection between the components of the crankcase ventilation system,
• reduces the risk of blow-by and oil leaks,
• supports smooth engine operation under various load conditions.

Thanks to a design consistent with the factory specifications, the Return Pipe BMW E60 E65 E87 E90 Hose Engine allows for restoring the correct oil vapor circulation without the need for system modifications.

Compatibility with BMW models

The offered element was designed as part of the original ventilation system for select versions of the BMW 5 Series (E60), 7 Series (E65), as well as the compact 1 Series (E87) and 3 Series (E90) models. This means that the pipe geometry, connection diameters, and routing within the engine bay are matched to the factory mounts and equipment of these generations.

Before purchasing, it is recommended to compare the shape and type of connectors with the currently installed part to confirm compatibility with your specific engine version. Using a pipe from the same family of BMW components promotes system consistency and facilitates installation.

Performance characteristics and installation

The breather hose operates in a high-temperature environment and in contact with oil vapors, which is why material resistance to aging and deformation is crucial. The original hose from this group of components has been designed for long-term operation under typical BMW engine conditions.

The main advantages of this solution include:

• factory fit to the system – the pipe is routed according to the original path, which minimizes the risk of chafing against other components,
• maintaining proper connection tightness using appropriate clamps or connectors,
• the ability to install it in place of a worn-out part without the need for system modifications.

When replacing, it is recommended to check the condition of other ventilation system components to avoid the need for re-disassembly in the near future.

Benefits of using an original BMW pipe

Choosing an original BMW breather hose translates into consistency with the vehicle's factory specifications. Using a component from the same product line:

• reduces the risk of leaks resulting from poor aftermarket fitment,
• supports the maintenance of correct engine and intake system operating parameters,
• facilitates diagnostics – the mechanic works with a system compliant with BMW service documentation.

For users who consciously choose used OEM parts, this is a way to combine reasonable costs with the original build quality characteristic of the BMW brand.

Air conditioning zone and related BMW components

In BMW vehicles, the engine ventilation system works in conjunction with other installations in the engine bay, including elements responsible for thermal comfort. 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 refrigerant lines, flexible hoses, or service connectors, check the available parts in the BMW air conditioning lines, hoses, and connectors category.

More about used parts for BMW and Mercedes

A conscious choice of used OEM components allows you to optimize service costs without sacrificing factory quality. If you are interested in how this applies to the Mercedes-Benz brand, it is worth reading an article describing the advantages of original salvaged components, such as air conditioning compressors or suspension elements – details can be found in the entry Used parts for Mercedes – original salvaged components.

For BMW fans who are considering installing a used breather hose or other components, a guide discussing the key benefits of such a solution and points to consider when choosing may also be helpful – more information can be found in the article Used parts for BMW – is it worth it? Key benefits for brand fans.