Mercedes-Benz C-Class W203 ABS Hydraulic Brake Pump Unit A2035451632

Mercedes-Benz C-Class W203 ABS Hydraulic Brake Pump Unit is a factory-original module from the ABS Controllers group, designed for the braking system of the C-Class W203 generation. It is responsible for precise pressure control in the brake circuits, working in conjunction with the ABS system electronics to ensure stable operation during emergency braking.

Specifications and technical data

• SKU: A2035451732
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2035451632
• Substitutable numbers: A2035451632, A 203 545 16 32, A2035451732, A 203 545 17 32, A0044310512, A 004 431 05 12, A0034319312, A 003 431 93 12, EM
• Category: ABS Control Modules

Purpose and function in the braking system

The presented Mercedes-Benz C-Class W203 ABS Hydraulic Brake Pump Unit is a central component of the anti-lock braking system in the Mercedes C-Class W203. This unit integrates the hydraulic block with the control section, enabling dynamic pressure modulation in the brake lines for individual wheels. As a result, the system reduces wheel lock-up during sudden braking, improving vehicle steerability and directional stability.

The module has been designed specifically for the W203 platform, maintaining factory operating parameters and the performance characteristics of the ABS system. The appropriate configuration of hydraulic channels and control valves allows for proper interaction with wheel speed sensors and other safety system components.

Benefits of using an original Mercedes module

Using an original Mercedes module to replace a worn or damaged component allows for maintaining the integrity of the entire braking system. The factory design ensures:

• precise fitment to the vehicle's hydraulic and electrical installation,
• proper cooperation with the factory ABS control software,
• preservation of the braking system's operating parameters as specified by the manufacturer.

For the user, this means stable ABS system performance, predictable vehicle response in critical situations, and a reduction in the risk of communication errors within the vehicle network after module replacement.

Operational characteristics and installation

The component belongs to the ABS Controllers category, meaning it combines a hydraulic section with a control unit designed to work with the factory installation of the Mercedes C-Class W203. The module's design allows for installation in the location specified by the vehicle manufacturer, using original mounting points and existing connectors.

Before installation, it is recommended to verify compatibility with the specific vehicle equipment version and to perform adaptation and bleeding of the braking system in accordance with service procedures. A correctly installed and configured module restores full ABS system functionality without the need for interference with other system components.

Replacement part numbers and part selection

The module has an assigned OEM part number and associated interchangeable numbers, which facilitates the selection of the correct variant for a specific Mercedes C-Class W203 configuration. In practice, this allows for precise matching of the Mercedes-Benz C-Class W203 ABS Hydraulic Brake Pump Unit to the vehicle's engine and equipment version, minimizing the risk of incompatibility during installation.

When selecting, it is worth using the manufacturer's markings and catalog data to ensure full compatibility with the existing installation. This ensures that the replacement process is efficient and the braking system regains stable operating parameters.

Product condition and practical tips

The offered module is a used component, which in the case of factory ABS controllers often represents a favorable compromise between cost and maintaining the manufacturer's original specifications. Before installation, it is recommended to perform a diagnostic check of the braking system and verify any errors stored in the vehicle's control unit memory after installing the part.

If you are planning a comprehensive repair or upgrade of the braking zone in your Mercedes and need other components from the same group, such as hydraulic pumps, control modules, or valve blocks, check out the available parts in the Mercedes ABS Controllers category.

More about used automotive electronics

When choosing a used ABS module, it is worth knowing the basic principles of selecting electronics and controllers in vehicles. How to assess the cost-effectiveness of a purchase, what to pay attention to during installation, and what the typical adaptation procedures are – these issues are discussed in more detail in the article: A second life for electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.