Brake Servo Mercedes W213 S213 Booster Master Cylinder Control Unit A2134300530

The Brake Servo Mercedes W213 S213 Booster Master Cylinder Control Unit is an original component of the braking system from the brake boosters and force regulators category, designed for Mercedes E-Class models W213/S213. The integrated design of the servo, master cylinder, and control unit ensures stable system pressure and precise braking force modulation, contributing to safe and comfortable vehicle operation.

Specifications and technical data

• SKU: rhd-A2134301030
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2134301030
• Substitutable numbers: A2134301030, A 213 430 10 30, A2134300530, A 213 430 05 30, A 213 430 01 00, A2134300100, A 205 430 00 02, A2054300002, KD, A2054300130
• Category: Brake Servos

Purpose and Function in the Braking System

The presented brake servo assembly with integrated control unit and master cylinder is responsible for assisting the braking pedal force and controlling pressure in the brake circuits. This solution is used in modern Mercedes E-Class W213/S213 vehicles, where the braking system interacts with advanced vehicle electronics (including stability control systems, safety assistants).

By integrating several sub-components into a single module, the number of hydraulic and electrical connections has been reduced, promoting stable system operation and facilitating service diagnostics.

Construction and Design Advantages

The module combines a vacuum brake booster, a master brake cylinder, and an electronic control unit in one housing. This configuration ensures:

• consistent pressure control in the braking system, adapted to current driving conditions,
• optimized interaction with active safety systems,
• reduced weight and dimensions of the entire assembly compared to distributed solutions.

Original Mercedes-Benz OE origin guarantees adherence to factory operating parameters, proper fitment to body mounts, and compatibility with vehicle control unit software.

Benefits of Using an Original Brake Servo and Force Regulator

Replacing a worn component with a complete module from the brake boosters and force regulators category restores the correct brake pedal characteristics and pressure stability in the circuits. In practice, this means:

• more predictable vehicle response to pedal application,
• better cooperation with ABS/ESP systems and emergency braking assistants,
• reduced risk of uneven braking between axles.

Choosing an original module over an aftermarket alternative is particularly important in vehicles equipped with advanced driver-assistance systems, where the precision of braking system parameters is crucial for the correct operation of the electronics.

Condition, Verification, and Part Selection

This component is a used OEM part from disassembly, offering high quality of workmanship at an attractive price compared to a new part. Before installation, standard service procedures are recommended: system leak check, brake bleeding, and control module adaptation according to the vehicle manufacturer's guidelines.

To correctly select the part for a specific vehicle, it is advisable to compare the markings on the old module with the specifications and verify compatibility using interchangeable part numbers. If in doubt, general guidance on the most frequently replaced wear parts, described in the article about the most popular parts requiring replacement in a car, may be helpful.

Operation and Related Vehicle Systems

A functional brake servo with a control unit influences not only the braking process itself but also the operation of driver assistance systems that utilize information about system pressure. When planning major service work, it is also advisable to assess the condition of other components affecting driving safety and comfort, such as suspension, steering system, or elements responsible for interior thermal comfort. In this context, the guide on selecting and maintaining air conditioning and heating components in a car can be helpful for a comprehensive approach to vehicle maintenance.

Summary

The Brake Servo Mercedes W213 S213 Booster Master Cylinder Control Unit is an original, integrated brake assist module designed for modern Mercedes E-Class models. Choosing this solution restores the braking system's factory operating parameters, ensuring stable pressure, predictable pedal response, and proper interaction with the vehicle's safety systems.