Mercedes-Benz C CLC Class CL203 W203 Brake Servo Master Cylinder A0054304930

Mercedes-Benz C CLC Class CL203 W203 Brake Servo Master Cylinder is an original braking system component designed for C-Class and CLC models. As part of the Brake servos and pressure regulators group, it provides stable brake assistance, improving the comfort and precision of the brake pedal operation. This used OEM component is a sensible choice for professional repairs or restoring the factory parameters of the braking system.

Specifications and technical data

• SKU: rhd-A0054309701
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0054309701
• Substitutable numbers: A0054304930, A 005 430 49 30, A0054309701, A 005 430 97 01, A2034303002, A 203 430 30 02, A0054305630, A 005 430 56 30, EM
• Category: Brake Servos

Purpose and function in the braking system

The brake servo integrated with the master cylinder is responsible for increasing the force applied to the brake pedal and for precisely distributing pressure in the brake circuits. In Mercedes C-Class and CLC models of the CL203 / W203 generation, this component works with the hydraulic system and vehicle electronics to ensure predictable, repeatable brake performance in daily operation.

By using an original Mercedes part, the correct pedal travel characteristics, linear pressure build-up, and proper cooperation with other braking system components are maintained. This is particularly important during intensive vehicle use, frequent city driving, and in emergency braking situations.

Benefits of using an original brake servo

Choosing an original brake servo with master cylinder for a Mercedes C-Class / CLC allows you to maintain the factory operating parameters of the braking system without the need for adaptations or modifications. The element has been designed specifically for the geometry of the engine compartment, mounting points, and the hydraulic system characteristics of these models.

• Factory fit – compatibility with mounts, pushrod length, and brake line layout.
• Consistent cooperation with other braking system components and vehicle safety systems.
• Stable brake assistance, beneficial for long-term operation and dynamic driving.

As a result, installation is straightforward, and after properly bleeding the braking system, you can achieve predictable, comfortable brake pedal operation.

Installation and operational characteristics

The brake servo with master cylinder intended for the Mercedes C-Class / CLC CL203 W203 is an OEM design, which facilitates installation in place of a worn component. Compatibility with factory bulkhead mounts, the connection to the brake pedal, and brake line connections is maintained. In practice, this means no need for installation modifications and the ability to use standard service procedures.

When replacing, it is recommended to:

• check the tightness of the vacuum system working with the servo,
• check the condition of brake lines and hoses,
• bleed the system according to the vehicle manufacturer's procedure.

This approach allows you to fully utilize the potential of the installed servo and ensure safe, repeatable operation of the braking system in daily use.

Part condition and selection by numbers

The offered element comes from the group of used original Mercedes parts, which is a favorable compromise between repair cost and maintaining factory specifications. The brake servo with master cylinder has an assigned OEM part number and a set of interchangeable numbers, which facilitates precise verification of compatibility with a specific engine version and vehicle model year.

Before purchasing, it is worth comparing the markings from the removed element or using the parts catalog by OEM number to confirm compatibility with your specific Mercedes C-Class or CLC. This approach minimizes the risk of error and speeds up the repair process.

Braking system expansion and service knowledge

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 servos, pressure regulators, or related components, check the available parts in the Mercedes brake servos and pressure regulators category.

To better take care of the durability of the installed brake servo and other dismantled components, it is worth familiarizing yourself with practical tips regarding operation and maintenance. Useful information can be found in the article How to extend the life of used car parts?, where proven methods for caring for mechanical elements and their proper handling in daily use are described.