Brake Booster Mercedes W205 W213 Master Cylinder Module Reservoir A2054300002

Brake Booster Mercedes W205 W213 Master Cylinder Module Reservoir is an original brake system component from the Brake boosters and force regulators group, designed for C-Class and E-Class models. Thanks to its factory OEM design, it ensures consistency with the factory brake hydraulics, stable operating pressure, and predictable brake pedal characteristics, which translates into safe and comfortable vehicle operation.

Specifications and technical data

• SKU: A2054300002
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2054300002
• Substitutable numbers: A2054300002, A 205 430 00 02, A2054300130
• Part type: Brake Servo & Master Cylinder
• Category: Brake Servos

Purpose and role in the brake system

The presented brake master cylinder with reservoir operates in the central part of the brake system, working in conjunction with the brake booster and force regulator. It is responsible for generating and distributing hydraulic pressure to individual circuits, which has a direct impact on braking efficiency and vehicle stability during rapid deceleration.

Thanks to the use of an original design dedicated to the W205 and W213 platform, the proper pedal feel is maintained – from the initial braking phase to the full utilization of the system's potential. This is particularly important in premium class cars, where repeatable brake system response is expected under various road conditions.

Advantages of using an original Mercedes component

Choosing an original brake master cylinder with reservoir for a Mercedes brings a number of practical benefits:

• maintaining factory braking force and pedal characteristics,
• reliable cooperation with the brake booster and force regulator,
• appropriate capacity and geometry of the brake fluid reservoir,
• compatibility with factory equipment and lines,
• reduced risk of leaks and problems with system bleeding.

As a result, the installation process is streamlined, and after proper bleeding, the system regains stable operating parameters. This is a particularly beneficial solution for professional repairs, where repeatability and compliance with the manufacturer's specifications are essential.

Installation and operational characteristics

The component has been designed as part of the Brake boosters and force regulators group, which means it is strictly matched to the engine bay geometry and mounting points on the body. This facilitates the mechanic's work, reduces installation time, and minimizes the need for additional modifications. After installation and proper bleeding of the brake system, it is possible to restore the full functionality of the factory system.

The used nature of the component makes it an economical solution that still allows for maintaining the vehicle's original specifications. With proper diagnostics of the entire brake system, the cylinder can continue to provide stable operating parameters and an adequate safety margin.

Integration with other brake system components

This type of brake master cylinder works with the brake booster, force regulator, brake lines, and calipers, forming a cohesive hydraulic system. In practice, this means that when replacing it, it is worth paying attention to the condition of other components – especially flexible hoses, discs, pads, and the quality of the brake fluid used. A consistent service approach helps reduce the risk of decreased braking efficiency and uneven force distribution across the axles.

If you are planning a comprehensive repair or upgrade of the braking zone in your Mercedes and need other elements from the same group, such as a brake booster, force regulator, or additional hydraulic sub-assemblies, check out the available parts in the Mercedes brake boosters and force regulators category.

Technical support and component selection

When selecting brake system components, it is crucial to pay attention to compatibility with the specific body version and engine unit, as well as the configuration of assistance systems (ABS, ESP). In case of doubt, it is worth relying on service documentation or manufacturer catalogs to avoid problems with installation and subsequent operation.

For users who are simultaneously servicing other vehicle systems, a guide on the selection and operation of thermal comfort components may be helpful – you can find more practical tips in the article Air conditioning and heating – part selection and maintenance for year-round comfort, where, among other things, the principles of working with used OEM components are discussed.