BMW X5 E70 Brake Brakes Master Cylinder Servo Booster Unit 6774622

The BMW X5 E70 Brake Servo Reservoir is an original component of the brake assist system, designed for installation in the BMW X5 E70 model. Thanks to its factory OEM construction, it ensures stable vacuum pressure and predictable brake pedal feel, which translates to safe and comfortable braking. This part comes from a dismantled vehicle, allowing you to combine proven BMW quality with an attractive price.

Specifications and technical data

• SKU: 6774622
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6774622
• Substitutable numbers: 6774622, 34336771718, 6771718, 34336772930, 6772930, 34336791410, 6791410, 34336772929, 6772929
• Category: Brake Servos

Purpose and Function in the Braking System

The BMW X5 E70 Brake Servo Reservoir is responsible for storing and stabilizing the vacuum used by the brake servo. A properly functioning reservoir maintains an adequate vacuum reserve, which is particularly important during frequent braking, city driving, and in emergency situations.

This component works directly with the servo and vacuum pump, influencing:

• brake assist force under various engine loads,
• a stable, repeatable feel at the brake pedal,
• a reduction in braking effectiveness drops during several rapid successive braking maneuvers.

Original BMW Part and Compatibility with Replacement Numbers

The presented reservoir belongs to the Brake Servos and Force Correctors group and is a factory BMW component. This means it retains the correct geometry, mounting points, and vacuum connector diameters, which facilitates installation and ensures proper interaction with other system components.

The part has a dedicated OEM number and assigned interchangeable numbers, allowing it to be matched to a specific BMW X5 E70 version based on the manufacturer's catalog or VIN number. This identification minimizes the risk of selecting an incompatible replacement and helps maintain the factory operating parameters of the braking system.

Condition, Origin, and Benefits of Choosing a Used Part

The component is offered as a used BMW part, sourced from a dismantled vehicle. Such components are particularly attractive for systems where structural compatibility with the original is crucial. By choosing a dismantled servo reservoir, you gain:

• factory specifications and fit for the BMW X5 E70,
• a favorable price-to-quality ratio compared to new parts,
• reduced risk associated with unreliable, low-quality aftermarket parts.

To maximize the potential of dismantled parts and extend their service life, it is worth consulting the guide: How to Extend the Lifespan of Used Global Parts Car Components. You will find practical tips on maintenance and proper installation there.

Installation and Operational Aspects

The brake servo reservoir for the BMW X5 E70 is designed to work with the factory servo and vacuum system. During replacement, it is recommended to:

• check the vacuum lines and connectors for leaks,
• inspect the condition of the brake servo and vacuum pump,
• clean the mounting points and use appropriate seals.

A correctly installed reservoir restores stable brake assist operation, which is noticeable as more predictable and consistent pedal action. This is particularly important in a heavy SUV like the BMW X5 E70, where the braking system operates under greater load than in compact cars.

Why Choose This Brake Servo Reservoir?

By choosing this component, you receive an original BMW part from the Brake Servos and Force Correctors group, structurally matched to the X5 E70. This is a solution for users who expect:

• preservation of factory braking characteristics,
• compatibility with the existing system without modifications,
• reasonable repair costs while maintaining OEM quality.

If you are undertaking a more extensive repair of the braking system or modernizing a car purchased on the secondary market, this brake servo reservoir provides a solid foundation for restoring the system's full functionality.