Mercedes-Benz C CLK W203 W209 ABS ESP Hydraulic Brake Pump Unit A0375457732

Mercedes-Benz C CLK W203 W209 ABS ESP Hydraulic Brake Pump Unit is a specialized component from the ABS and ESP System group, designed for Mercedes vehicles. It is a solution for users who expect stable brake system performance, correct interaction between the ABS and ESP systems, and precise traction control during daily operation.

Specifications and technical data

• SKU: A0044316212-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0044316212
• Substitutable numbers: A0044316212, A 004 431 62 12, A0375457732, A 037 545 77 32, A0054312912, A 005 431 29 12, A0064310312
• Category: ABS & Stability Hydraulic Units

Purpose and function in the vehicle

The described ABS ESP hydraulic brake pump is a key module responsible for generating and modulating pressure in the brake circuits, as well as for interacting with electronic stability control systems. In Mercedes W203 and W209 series vehicles, it is responsible for:

• precise dosing of braking pressure to individual wheels,
• cooperation with wheel speed sensors as part of the ABS system,
• coordination with the ESP system in situations of traction loss,
• maintaining vehicle stability during emergency braking and obstacle avoidance.

Thanks to this, the driver receives a predictable brake system response, and the vehicle remains stable on both dry and slippery surfaces.

Construction and integration with the ABS and ESP System

The pump is integrated with the hydraulic block and control unit designed to work with safety systems in Mercedes vehicles. The design intended for the ABS and ESP System ensures:

• properly selected operating characteristics of valves and hydraulic channels,
• compatibility with the vehicle's factory electrical architecture,
• the ability to work with the factory controller responsible for ABS and ESP.

Such matching reduces the risk of system errors and facilitates computer diagnostics after installation, which is important for both workshops and individual users.

Benefits of using an original Mercedes component

Choosing an ABS ESP hydraulic brake pump dedicated to the Mercedes W203 and W209 allows for maintaining the factory parameters of the brake system. The main advantages include:

• maintaining original braking characteristics – the vehicle reacts according to the manufacturer's specifications,
• consistency with the existing hydraulic and electrical installation,
• easier configuration and adaptation compared to universal replacements,
• the ability to use existing service documentation and Mercedes diagnostic procedures.

For users who expect predictable vehicle behavior and correct cooperation of all assistance systems, using such a component is a technically sound solution.

Characteristics of the used product

The presented ABS ESP hydraulic brake pump is offered as a used component, which is a cost-effective alternative to new parts. This type of component is particularly attractive for repairs of vehicles that are used intensively or have higher mileage, where the priority is to maintain functionality within a reasonable service budget.

When choosing a used element from the ABS and ESP System group, it is worth paying attention to compatibility with the specific vehicle equipment version and matching the factory control unit. A properly selected pump allows for reducing installation time and minimizes the risk of additional installation modifications.

Matching by part numbers and vehicle integration

The ABS ESP hydraulic brake pump has a dedicated OEM part number and associated interchangeable numbers, which facilitates precise identification and selection for a specific Mercedes configuration. Thanks to this, the workshop or user can verify compatibility with the vehicle based on service documentation, parts catalogs, or readings from diagnostic systems, without the need to interfere with the brake system structure.

This approach reduces the risk of installing an incorrect module, thereby decreasing the probability of ABS/ESP errors and the need for re-replacing the component.

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 pumps, control modules, or hydraulic blocks, check the available parts in the Mercedes ABS and ESP System category.

Technical support and vehicle development

When upgrading or repairing safety systems, it is worth thinking about the vehicle as a whole – from brakes and suspension to the drivetrain and exhaust system. For drivers interested in improving engine performance and exhaust flow, while also considering the use of aftermarket components, a guide on selecting exhaust system elements may be useful. More practical tips can be found in the article Performance exhaust system: used manifolds and sports catalytic converters on the road.