Description
Mercedes C140 Brake Servo Booster Master Cylinder Braking Unit is a complete braking system unit designed for luxury coupé models. It offers precise braking force modulation, stable system operation, and consistency with the vehicle’s factory architecture. This is a solution for users who expect reliable, predictable brake pedal response and the preservation of the original braking characteristics.
Specifications and technical data
- SKU: RHD-A0044308230
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A0044308230
- Substitutable numbers: A0044308230, A 004 430 82 30, A0044303730, A 004 430 37 30
- Category: HVAC Blower Motor & Wheel
Technical characteristics and function in the braking system
The braking unit for the C140 body style combines a brake servo and a master brake cylinder into one assembly, responsible for amplifying the pedal pressure and distributing pressure within the brake circuits. As a result, the driver receives clear, predictable system feedback, and braking force is transferred to the calipers in an even and stable manner.
The original Mercedes design ensures compliance with factory vehicle parameters, which is particularly important for advanced safety systems. Using a complete unit reduces the risk of improper interaction with other braking system components.
Selection and vehicle compatibility
The presented braking unit has been designed specifically for the C140 platform, which means it fits factory mounts, engine bay geometry, and brake line layouts. Consequently, installation is straightforward, without the need for structural modifications to the body or wiring.
For proper selection, it is recommended to verify compatibility with the specific engine version and vehicle model year, as well as to compare the unit with the currently installed component. Original manufacturer markings and available replacement numbers allow for precise matching of the part to the specific car configuration.
Condition, functional benefits, and application
The item is sourced from disassembly and is intended for users looking for a factory solution on a reasonable budget. Compared to low-quality replacements, the original Mercedes braking unit maintains the correct operating characteristics, which translates into comfort and consistent braking system performance.
Replacing the complete brake servo and master cylinder assembly is particularly recommended in situations where symptoms such as uneven pedal operation, noticeable drops in assistance, increased braking distance, or leaks around the master cylinder occur. Using one cohesive module minimizes the risk of further operational issues.
Selection support and additional technical information
To facilitate part identification in the store system, you can use designations such as SKU, OEM part number, and available replacement numbers. Information about the manufacturer, i.e., the brand, allows you to maintain consistency with other braking system components in your Mercedes, and the condition parameter makes it easier to assess the cost-effectiveness of the purchase compared to new components.
If you are planning a comprehensive repair or upgrade of the braking zone in your BMW E90 and want to better understand the impact of the technical condition of components on your service budget, it is worth reading the practical guide: Emergency BMW E90 engines – check what can ruin your budget.
If you want to deepen your knowledge on the safe selection of used braking system elements, including discs, calipers, and ABS systems, the following guide will be helpful: how to safely select used braking system elements, which discusses the key stages of verifying such components.
Related Mercedes braking system elements
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 discs, pads, or brake lines, check the available parts in the Mercedes blower motors and wheels category.
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