BMW G30 Brake Servo Booster Master Cylinder Module 6874526

BMW G30 Brake Servo Booster Master Cylinder Module is a key component of the braking system, responsible for the stable transmission of brake pedal pressure into hydraulic circuit pressure. This module from the Brake Servos and Boosters category has been designed specifically for BMW vehicles, ensuring precise system operation and predictable vehicle response during braking. The used OEM component is a sensible choice for professional repairs when you want to maintain the factory braking characteristics.

Specifications and technical data

• SKU: 6874526
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6874526
• Substitutable numbers: 6874526, 34336874526
• Category: Brake Servos

Purpose and function in the braking system

The brake servo and master cylinder module for the BMW G30 is responsible for boosting the pressure force on the pedal and generating the appropriate pressure in the brake circuit. This provides the driver with:

• a more linear and predictable pedal response,
• stable pressure in the circuits during emergency braking,
• better vehicle control in emergency situations.

As an OEM component, the module works with the vehicle's factory electronics, including stability control systems and safety assistants, maintaining original maps and operating characteristics.

Module construction and OEM advantages

The presented assembly from the Brake Servos and Boosters category combines a vacuum booster and a master cylinder in one housing, which simplifies installation and reduces the number of potential leak points. Using the original BMW design means:

• factory fitment to body mounts and pedal geometry,
• proper compatibility with brake lines and accessories,
• preservation of the stock brake pedal travel and firmness characteristics.

For the user, this translates into comfortable, repeatable braking system operation without the need for adaptations or mechanical modifications.

Condition, verification, and service application

The item is offered as a used OEM part, which in practice means a favorable compromise between repair costs and maintaining original build quality. This type of module is particularly recommended in situations where:

• there has been a drop in braking efficiency caused by damage to the servo or master cylinder,
• leaks or unstable pressure appear in the system,
• it is necessary to replace the complete assembly instead of regenerating individual components.

Before installation, standard service procedures are recommended: leak testing, system bleeding, and verification of proper brake pedal operation after installation. This allows the module to fully restore factory braking efficiency in your BMW G30.

Integration with other BMW braking system components

Replacing the brake servo and booster often involves inspecting the entire braking zone of the vehicle. If you are planning a comprehensive repair or upgrade of the braking zone in your BMW and need other items from the same group, such as discs, pads, or brake lines, check out the available parts in the BMW Brake Servos and Boosters category.

Practical service and maintenance tips

When working with the braking system, it is worth following procedures consistent with the manufacturer's documentation, especially regarding bleeding and leak testing. Good practice also includes periodic inspection of other systems affecting safety and driving comfort. In the context of general vehicle maintenance, a guide on selecting and servicing comfort components may be helpful – detailed tips can be found in the article Air conditioning and heating – part selection and maintenance for year-round comfort.

Summary

The brake servo and master cylinder module designed for the BMW G30 is an original element from the Brake Servos and Boosters group, which allows for the restoration of the correct brake pedal operating characteristics and pressure stability in the system. By choosing a used OEM component, you gain factory fitment, predictable vehicle behavior during braking, and a solution consistent with the manufacturer's design, which is particularly important for professional BMW car repairs.