Mercedes W205 Brake Servo Booster Master Cylinder Module A2054300130

Mercedes W205 Brake Servo Booster Master Cylinder Module is a factory-original brake system component designed for the W205 generation C-Class models. It is responsible for assisting the braking force applied to the brake pedal and precisely metering pressure in the circuits, which translates into stable, predictable braking and overall system comfort.

Specifications and technical data

• SKU: rhd-A2054300130-3
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2054300130
• Substitutable numbers: A2054300130, A 205 430 01 30, A2054300002, A2134301030, A2134301130, A2054301400, A2384300100
• Category: Brake Servos

Purpose and function in the braking system

The presented brake servo module integrated with the master cylinder is a component from the Brake Servos and Force Regulators group, specifically designed for the Mercedes W205 platform. It is responsible for increasing the force generated by the driver on the brake pedal and for maintaining stable pressure in the circuits, which is crucial for braking efficiency in daily operation.

A properly selected servo with a master cylinder ensures:

• consistent, repeatable brake pedal feel,
• appropriate assistance characteristics at various speeds,
• correct cooperation with the vehicle's safety systems,
• stable operating pressure in the system during intensive braking.

Original Mercedes component – benefits of use

As a Mercedes brand product, the servo with the master cylinder module was designed for the specific architecture of the W205 brake system. This means maintaining factory performance characteristics, proper fitment to body mounts, and compatibility with the existing hydraulic and vacuum installation.

The most important advantages of using the original module include:

• Factory geometric fitment – no need to modify mounts or lines.
• Consistency with the calibration of electronic systems responsible for braking.
• Maintenance of the braking force characteristics designed by the manufacturer.
• Possibility of direct compatibility verification via OEM part number and interchangeable numbers (visible in the technical specification).

Condition, verification, and service application

The item is offered as used, which in practice means it has been dismantled and is intended for further use after proper installation and basic service inspection. This type of solution is often chosen in professional workshops when the priority is to maintain the original system design while optimizing repair costs.

Before installation, it is recommended to:

• check the tightness of hydraulic connections after installation,
• verify the correct operation of the vacuum assistance,
• bleed the brake system in accordance with the service procedure for the given model.

Integration with other brake system components

The servo with the master cylinder works directly with the brake pedal, rigid and flexible lines, calipers, as well as discs and pads. Replacing this module is particularly recommended in situations where symptoms such as uneven assistance, an excessively soft pedal, or noticeable changes in braking characteristics occur.

To maintain the consistency of the entire system, it is worth paying attention to the condition of other brake zone components, such as lines, calipers, or mounting elements, during installation. This makes it possible to achieve stable, predictable brake performance across the full range of loads.

Mercedes Brake Servos and Force Regulators – expansion and selection

If you are planning a comprehensive repair or upgrade of the brake zone in your Mercedes and need other components from the same group, such as additional servos, brake force regulators, or modules cooperating with the system, check the available parts in the Mercedes Brake Servos and Force Regulators category.

Technical support and vehicle operation

During service work within the brake system and general vehicle operation, it is also worth taking care of other systems affecting safety and driving comfort, such as air conditioning or cabin heating. Practical tips on selecting used OEM components and maintenance schedules can be found in the article Air conditioning and heating – part selection and maintenance for year-round comfort.

Summary

Mercedes W205 Brake Servo Booster Master Cylinder Module is an original component from the Brake Servos and Force Regulators group, intended to restore the correct braking characteristics in the vehicle. Using a factory solution allows for maintaining the effectiveness and stability of the system as designed by the manufacturer, which is particularly important both in daily city driving and on longer trips.