Brake Servo Mercedes W204 Brake Master Cylinder Booster A2044302230

The Brake Servo with Brake Master Cylinder for Mercedes W204 is an original brake system component designed for Mercedes W204 class models. As part of the brake boosters and force correctors group, it ensures stable, predictable brake performance and comfortable brake pedal operation in daily use.

Specifications and technical data

• SKU: rhd-A2044302230
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2044302230
• Substitutable numbers: A2044302230, A 204 430 22 30, A2044302730, A 204 430 27 30, A0064301601, A 006 430 16 01, A2044300102, A 204 430 01 02, BG
• Category: Brake Servos

Technical Characteristics and Purpose

The Brake Servo Mercedes W204 Brake Master Cylinder Booster is a complete solution combining a brake booster with a brake master cylinder, designed by the vehicle manufacturer to maintain the original brake system parameters. This component is responsible for assisting the force applied to the brake pedal and correctly distributing pressure within the brake circuits, which translates to predictable vehicle response during braking.

The product belongs to the Brake Boosters and Force Correctors category, making it an ideal replacement part for a worn or damaged factory component. Using an original solution ensures compatibility with the brake system's design and the parameters intended by Mercedes-Benz engineers.

Original Origin and Replacement Numbers

The offered component comes from the Mercedes-Benz OE parts line, meaning it is a component specifically designed to work with the brake system in a Mercedes W204. The part has a dedicated OEM number and assigned replacement numbers, which facilitates precise identification and selection of the correct variant for a specific vehicle configuration.

The presence of reference numbers allows for checking compatibility with other versions of the same unit and with replacements used within the same platform. This solution is particularly useful for workshops and service centers that require unambiguous part matching to a specific VIN and vehicle specification.

Condition, Functionality, and Service Application

The presented brake booster and master cylinder set is a used part, allowing for an economical yet technically sound repair of the brake system. This type of component is often chosen when a complete brake booster replacement is necessary, and maintaining the original design and pedal feel is a priority.

In practice, installing such a sub-assembly is particularly recommended in cases of:

• reduced brake assist effectiveness,
• an unnaturally hard or "spongy" brake pedal,
• mechanical damage to the brake booster or master cylinder,
• the need to restore original braking parameters after unsuccessful modifications.

Benefits of Using an Original Brake Booster

Using an original brake booster with a master cylinder in a Mercedes W204 provides a number of practical operational benefits:

• Factory Braking Characteristics – maintaining the manufacturer's intended assist force and pedal travel.
• Compatibility with Other System Components – full compliance with brake lines, calipers, and vehicle electronics.
• Long-Term Stable Operation – a design developed for intensive, daily use.
• Hassle-Free Installation – a solution prepared for installation in place of the factory component, without the need for structural modifications.

Professional Selection and Brake System Service

To fully utilize the potential of this component, it is advisable to combine its installation with comprehensive brake system diagnostics – checking lines, brake fluid, and the condition of calipers and pads. This allows for a cohesive service outcome and restores safe, repeatable braking to the vehicle.

If you are interested in a broader context of selecting used OEM components and their servicing in other vehicle systems, our guide on thermal comfort in cars may be helpful: find out how to professionally select and service used air conditioning and heating components. This will help you more easily plan comprehensive service work, combining brake maintenance with other key vehicle systems.