BMW 1 3 5 Series E60 E65 E70 E87 E90 E91 Crankshaft Vent Breather Hose 7559528

BMW E60 E65 E70 E87 E90 E91 Crankcase Ventilation Hose is an original component of the crankcase ventilation system, designed for popular models of the 5, 7, X5, 1, and 3 series. Thanks to its factory geometry and fit, it ensures proper oil vapor drainage and stable engine operation. This is a practical solution for users looking for a proven crankcase ventilation hose instead of unverified aftermarket parts.

Specifications and technical data

• SKU: 7559528
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 11157559528
• Substitutable numbers: 11157559528, 7559528
• Category: Other Engine Parts

Purpose and Function of the BMW Crankcase Ventilation Hose

The presented crankcase ventilation hose is a component of the crankcase ventilation system in BMW engines used in the E60, E65, E70, E87, E90, and E91 series. It is responsible for the controlled drainage of gases and oil vapors from inside the engine to the intake system, which reduces oil contamination and helps maintain stable engine operating parameters.

A properly selected crankcase ventilation hose can minimize the risk of:

• excessive exhaust smoke during acceleration,
• unstable idle speed,
• increased oil consumption due to system leaks,
• contamination of the intake manifold with oil and carbon deposits.

Construction and Fit for E60, E65, E70, E87, E90, E91 Series

The crankcase ventilation hose has been designed for specific engine systems used in the mentioned BMW generations, which translates to proper hose routing in the engine bay and maintaining required bending radii. The appropriate stiffness and flexibility of the material reduce the risk of kinks that could cause a drop in flow or the creation of vacuum in unwanted places.

Thanks to its construction, which is consistent with factory solutions, installation is done in existing mounting points, without the need for modifications to the system. This is particularly important in modern engines where the crankcase ventilation system interacts with the engine control system and sensors.

Benefits of Using an Original Crankcase Ventilation Hose

Using an original crankcase ventilation hose in BMW models of the E60, E65, E70, E87, E90, and E91 series allows for engine operating parameters to be maintained in accordance with the manufacturer's specifications. In practice, this means:

• stable crankcase pressure and proper seal operation,
• reduced risk of oil leaks at connections and seals,
• more predictable engine behavior under changing loads,
• easier diagnosis of potential crankcase ventilation system faults.

For workshops and private users, this also means greater certainty regarding compatibility with factory equipment and a lower risk of post-installation problems.

Part Condition and Service Application

The element comes from the Other category, which in practice means it is an auxiliary system part, often overlooked during standard inspections, but having a real impact on engine running smoothness. Replacing the crankcase ventilation hose is particularly recommended when symptoms such as false air intake, oil leaks around the hose, or visible material cracking appear.

Due to its application, the crankcase ventilation hose is frequently used in preventative maintenance – especially in cars primarily used in the city, where the ventilation system operates under more demanding thermal conditions.

Related Content and Other Products

If you are looking for other elements from the BMW Other category, check out our offer, where you will find a wide selection of components such as BMW Other, tailored to various series and generations of this brand.

To compare design solutions used in sports models from other manufacturers, you can read an article comparing powertrains and chassis – Audi RS vs. Other Models – What Lies Under the Hood and Chassis?. This is a good supplement to understanding how different manufacturers design key systems in cars with varied performance.