BMW 1 3 Series E88 E90 E91 Intake Manifold Vent Hose Petrol N47 N47N 7807515

BMW 1 3 Series E88 E90 E91 Intake Manifold Vent Hose Petrol N47 N47N is an original intake system component from BMW, designed for use with petrol engines. Engineered as part of the factory air intake system, it ensures stable airflow between the filter and the manifold, which promotes smooth engine operation.

Specifications and technical data

• SKU: 7807515
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7807515
• Substitutable numbers: 13717807515, 7807515
• Fuel type: Petrol
• Category: Intake Manifolds

Purpose and role in the intake system

The presented pipe, conduit, or filter hose is a component from the Intake Manifolds group, responsible for a tight and stable connection of the intake section between the air filter housing and the rest of the system. In BMW E-series vehicles, a properly selected intake hose reduces pressure drops, minimizes turbulence, and supports uniform cylinder filling, which translates into the refinement of a petrol engine.

This element is particularly important in vehicles operated in urban and highway conditions, where frequent load changes require a stable air supply. A properly selected intake hose helps maintain correct mixture parameters, which helps maintain engine efficiency and limits unwanted performance drops.

Construction and functional properties

The intake pipe has been designed to match the factory mounting points in the BMW engine bay, which facilitates installation and reduces the risk of stress in the system. The shape and diameter of the hose are adapted to the airflow required by the petrol engine to maintain the appropriate stream velocity and reduce flow losses.

In practice, this translates into:

• maintaining stable airflow to the intake manifold,
• reducing the risk of leaks in the section between the filter and the engine,
• better repeatability of engine operating parameters under various load conditions.

Thanks to a design consistent with the manufacturer's specifications, the hose works with factory intake system components without the need to modify other parts.

Condition, fitment, and installation

The offered item comes from the group of used OEM BMW parts, meaning it was designed for specific mounting points and the engine bay geometry of E-series models. Such fitment reduces the risk of improper hose positioning, which could lead to chafing, cracks, or unwanted vibrations.

During installation, it is recommended to pay attention to:

• proper seating of the hose ends on the intake system connectors,
• checking the condition of clamps and seals working with the pipe,
• verifying that the hose is not twisted or excessively stressed after mounting.

This approach allows for maintaining system tightness and reducing the risk of sucking in unfiltered air, which is particularly important for engine durability.

Use in service and upgrades

Replacing the filter hose in BMW E-series vehicles is recommended in situations where the existing element shows signs of wear, cracks, deformation, or loss of elasticity. Using an original component from the Intake Manifolds group allows for restoring factory airflow parameters and reducing the risk of issues with petrol engine operation.

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 additional intake hose sections, transition elements, or connection ports, check the available parts in the BMW Intake Manifolds category.

Technical support and additional knowledge

For users interested in a broader context of gas flow modifications in the vehicle, including the impact of manifold elements on engine performance characteristics, the guide material dedicated to exhaust systems and manifolds may be useful. More information can be found in the article Performance exhaust system: used manifolds and sports catalytic converters on the road, which discusses practical aspects of selecting and operating used components in premium brand vehicles.