Vacuum Pipe BMW X5 X6 E70 E71 M57N2 Line Brake Servo Unit 7798110

Vacuum Pipe BMW X5 X6 E70 E71 M57N2 Line Brake Servo Unit is an original brake system component responsible for the stable delivery of vacuum to the brake servo. Thanks to its factory geometry and precise fit for the specific configuration of X5 and X6 models, it ensures proper brake booster operation and predictable brake pedal response, which translates into driving comfort and safety.

Specifications and technical data

• SKU: rhd-7798110
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7798110
• Substitutable numbers: 11667798110, 7798110, EM
• Category: Brake Hoses, Lines & Fittings

Purpose and function in the brake system

This vacuum pipe is a component from the Brake hoses, lines, and connectors group, designed to work with the brake servo unit in BMW X5 E70 and BMW X6 E71 vehicles with the M57N2 diesel engine. Its task is to provide a tight and stable connection between the vacuum source and the servo, in order to:

• ensure adequate boost force every time the brake pedal is pressed,
• maintain constant vacuum in the system, even during dynamic driving,
• minimize the risk of reduced braking efficiency resulting from pipe leaks.

Thanks to its factory profile and diameter, the pipe works with original ports and connectors, which facilitates installation and reduces the risk of material stress during operation.

Benefits of using an original BMW pipe

Using an original vacuum pipe in a BMW brake system provides measurable operational benefits:

• Factory fit – the pipe is prepared for specific routing in the engine bay of the X5/X6 with the M57N2 engine, which facilitates correct installation without collisions with other components.
• Stable brake servo operation – the proper cross-section and construction of the pipe promote the maintenance of adequate vacuum, which translates into repeatable braking force.
• Compatibility with factory connectors – the pipe ends are adapted to original quick-connectors and ports, which limits the need for modifications.
• Consistency with the rest of the brake system – the element comes from the same design line as other BMW components, which facilitates diagnostics and service.

Characteristics of the used component

The offered vacuum pipe is a used part, sourced from a dismantled BMW vehicle. This type of component, provided it remains airtight and free of mechanical damage, retains its functional properties for a long time. In practice, this means the possibility of an economical repair of the brake system while maintaining the manufacturer's original specifications.

Choosing a used OEM pipe is particularly beneficial for vehicles that are used intensively, where both technical compliance and service cost optimization are important. This type of element allows for restoring proper brake booster operation without the need to use replacements with uncertain parameters.

Selection, installation, and system integration

For the vacuum pipe of the brake servo to function properly, it is crucial to match it to the specific engine and body version. In the case of the BMW X5 E70 and X6 E71 with the M57N2 unit, this element was designed with the following in mind:

• proper routing in the engine bay,
• cooperation with the factory brake servo,
• maintaining the required bending radii so as not to restrict vacuum flow.

During installation, it is worth paying attention to the correct seating of the ends on the ports and checking for leaks after starting the engine. Thanks to this, the brake system will regain full efficiency, and the pedal response will be predictable and repeatable.

If you are planning a comprehensive repair or upgrade of the braking zone in your BMW and need other elements from the same group, such as flexible hoses, rigid lines, or servo connectors, check out the available parts in the BMW brake hoses, lines, and connectors category.

Optimizing brake system service costs

When repairing the brake system, many users consider using original used parts to combine technical compliance with a reasonable budget. In the case of components such as vacuum pipes, calipers, or other hydraulic elements, proper selection and condition verification are crucial for safety.

If you want to better understand how to safely use reclaimed parts in the brake system and how to reduce service costs, it is worth reading the guide: Brake calipers under the microscope: How to effectively reduce the costs of brake system repair by choosing proven reclaimed parts.