Mercedes W164 Brake Servo Brake Master Cylinder Booster A1644301030

Mercedes W164 Brake Servo Brake Master Cylinder Booster is a component from the Brake servos and force regulators group, designed for the braking system of Mercedes vehicles. This used OEM part allows for maintaining factory braking characteristics, ensuring consistency with the original system design and predictable brake pedal operation.

Specifications and technical data

• SKU: A1644310427
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1644310427
• Substitutable numbers: A1644310427, A 164 431 04 27, A1644301030, A 164 430 10 30, A 164 428 00 15, A1644280015, A1644300301, A 164 430 03 01, KD
• Category: Brake Servos

Technical characteristics and purpose

The presented brake master cylinder with booster is a component that works with the brake assist system in the Mercedes W164 class. It is responsible for generating the appropriate pressure in the brake circuits and for the stable transfer of force from the brake pedal to the calipers and wheel cylinders. Using an original solution from this group of components helps maintain proper braking force modulation and correct cooperation with other system components.

Thanks to a design consistent with factory Mercedes standards, the master cylinder with booster is matched to the engine compartment geometry and factory mounts, which facilitates installation and reduces the risk of leaks or improper brake pedal positioning.

Compatibility and replacement numbers

The product belongs to the OEM parts group, for which a dedicated part number and associated interchangeable numbers are provided. The presence of reference numbers allows for precise matching of the brake master cylinder to a specific vehicle configuration, which is particularly important in the case of models with different engine and equipment variants.

Before purchasing, it is worth comparing the markings with the currently installed element or with service documentation to confirm compatibility. This approach minimizes the risk of selecting the wrong version and facilitates trouble-free replacement in the workshop.

Benefits of using an original brake master cylinder with booster

Using an original component from the Brake servos and force regulators group in a Mercedes W164 translates into a number of practical benefits in daily operation:

• maintaining factory brake pedal operating characteristics and predictable system response,
• consistent cooperation with the existing booster and other hydraulic brake components,
• matching factory mounts and lines, which facilitates installation in workshop conditions,
• reducing the risk of bleeding issues and leaks due to design compliance.

For premium class vehicles, such as Mercedes, the use of original solutions in the brake area has a direct impact on driving safety and comfort, especially in emergency braking situations.

Part condition and use in service practice

The offered brake master cylinder with booster is a used component, which allows for economical repair of the braking system while maintaining the manufacturer's original specifications. This type of component is often chosen in situations where the existing element shows signs of performance degradation, unstable pedal operation, or system leaks.

In service practice, replacing the brake master cylinder with booster is recommended, among other things, after identifying problems with maintaining pressure in the brake circuits, uneven brake operation, or mechanical damage within the engine compartment. Using an original solution promotes the rapid restoration of the correct system operating parameters.

Brake system expansion and selection of other components

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

During service work on the braking system, it is also worth paying attention to the condition of the lines, calipers, and brake fluid. A good practice is to plan brake system inspections in parallel with other maintenance activities, such as air conditioning or heating system service. In the context of overall vehicle maintenance, the guide article Air conditioning and heating – part selection and maintenance for year-round comfort, which discusses the principles of selecting used OEM components and service schedules, may be helpful.