BMW E60 E61 E63 E64 Radiator Coolant Vent Pipe Hose 540i 550i 650i N52 7534917

BMW E60 E61 E63 E64 Radiator Coolant Vent Pipe Hose 540i 550i 650i N52 is an original cooling system vent pipe designed for selected BMW models with the N52 engine. This component belongs to the Lines, Hoses and Pipes group and has been engineered to ensure stable coolant flow and proper system venting under demanding engine operating conditions.

Specifications and technical data

• SKU: 7534917
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7534917
• Substitutable numbers: 7534917, 17127534917
• Category: Hoses, Lines & Pipes

Purpose and function in the cooling system

This vent pipe is a component of the cooling system for the N52 engine used in BMW 5 Series (E60, E61) and 6 Series (E63, E64) models in 540i, 550i, and 650i versions. Its task is to provide controlled air discharge from the coolant circuit, which promotes stable engine operating temperatures and reduces the risk of localized overheating.

A properly selected pipe from the Lines, Hoses and Pipes group helps maintain correct system pressure, supports uniform coolant flow, and facilitates proper venting after service, e.g., after replacing the radiator, water pump, or thermostat.

Construction and fitment for BMW with N52 engine

The offered pipe was designed by BMW for precise fitment to factory connectors and mounts in the engine bay. The shape, connection diameters, and placement of mounting points comply with the original specification, which facilitates installation and reduces the risk of leaks.

Thanks to a design that meets the manufacturer's requirements, the pipe works in harmony with other cooling system components, maintaining proper geometry under the hood, even during temperature and load fluctuations. This solution is particularly important in N52 units, where stable cooling has a direct impact on engine durability and driving comfort.

Benefits of using an original BMW pipe

Using an original vent pipe instead of a worn or leaking component allows for the restoration of correct cooling system operating parameters without the need for system modifications. This is a practical solution for users who expect:

• reliable fitment to factory mounts and connectors,
• stable coolant flow across the entire RPM range,
• efficient venting after service work,
• preservation of the vehicle's original technical configuration.

Choosing an original component from the Lines, Hoses and Pipes group reduces the risk of compatibility issues that may occur when using aftermarket parts with imprecise dimensions or different routing.

Condition and service application

The pipe is offered as a used part, which is a cost-effective solution for drivers looking for original BMW components at a reasonable price. This type of element is perfect for maintenance repairs when it is necessary to replace a damaged or brittle vent pipe, and the priority remains to maintain the factory cooling system specification.

Before installation, it is recommended to perform a standard check of connection tightness and the correct positioning of the pipe in the engine bay to ensure trouble-free operation in the long term and to avoid mechanical stress resulting from improper routing.

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 coolant lines, return hoses, or vent pipes, check out the available parts in the BMW Lines, Hoses and Pipes category.

For a better understanding of how to select original used BMW components by OEM numbers and how they influence the durability and precision of the car's performance, it is worth reading the article BMW – sports performance and precision. How do original used parts extend the life of a Bavarian icon?.