BMW E87 E90 Intake Manifold Vent Hose 116i 316i Petrol N45 7526645

BMW E87 E90 Intake Manifold Vent Hose 116i 316i Petrol N45 is an original crankcase ventilation component designed for N45 petrol engines in 1 Series and 3 Series models. Engineered by BMW, it ensures proper evacuation of vapors from the crankcase, which translates into stable engine performance. This used OEM component is a sensible choice for drivers and workshops looking for a proven solution at an attractive price.

Specifications and technical data

• SKU: 7526645
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7526645
• Substitutable numbers: 7526645, 11157526645
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Function and application of the vent hose

The vent hose, pipe, or tube in a petrol engine plays a key role in the crankcase ventilation system. It is responsible for the controlled discharge of oil vapors and gases from inside the engine into the intake system, which helps maintain proper pressure and reduces contamination of engine components.

In N45 units installed in BMW E87 and E90 series, a properly functioning vent hose contributes to:

• stable idle performance,
• correct throttle response,
• reduced risk of oil leaks caused by overpressure in the crankcase,
• maintaining the cleanliness of the intake manifold and adjacent components.

Construction and engine fitment

This element belongs to the Hoses, pipes, and tubes category, meaning it has been designed to operate in high-temperature environments and withstand contact with oil and fuel vapors. The shape and connection diameters are factory-matched to the ventilation system of the N45 engine, allowing for installation without the need for modifications.

Original manufacturing ensures:

• a secure connection to the engine ports and the intake system,
• appropriate material stiffness and flexibility,
• compatibility with factory brackets and hose routing.

Benefits of using an original BMW hose

Choosing a used OEM vent hose for your BMW allows you to maintain the factory operating characteristics of the engine without the risk of poor fitment, which is common with many aftermarket replacements. Original geometry and diameters help maintain proper gas flow, which is important for engine management system operation and exhaust emissions.

The main advantages of this solution include:

• consistency with other ventilation system components,
• easier diagnostics in case of future faults,
• no need to modify the under-hood installation.

Condition, verification, and part selection

This item is sourced from disassembly and is offered as a used ventilation system hose, providing a cost-effective alternative while maintaining original BMW specifications. Before installation, a standard visual inspection for potential micro-cracks, wear at the connectors, and channel patency is recommended to ensure trouble-free operation.

When selecting a hose for a specific BMW 1 or 3 Series petrol model, it is advisable to refer to the OEM markings and interchangeable part numbers found in the product's technical specifications, as well as data from the manufacturer's catalog or the vehicle's VIN.

Expanding the BMW hose system

If you are planning a comprehensive repair or upgrade of your BMW's engine area and need other components from the same group, such as additional lines, flexible hoses, or rigid ventilation and intake pipes, check out the available parts in the BMW Hoses, pipes, and tubes category.

When selecting used ventilation and intake system components, our practical buying guide prepared for drivers and workshops may be helpful – you can find more information in the article Safe online purchase of used car parts – a step-by-step guide.