Mercedes-Benz W202 W210 W208 W220 ABS Hydraulic Brake Pump Unit A0034319012

Mercedes-Benz W202 W210 W208 W220 ABS Hydraulic Brake Pump Unit is a specialized component from the ABS and ESP system group, responsible for precise pressure control in brake circuits. This used ABS hydraulic module provides a functional service solution for Mercedes vehicles, allowing for the restoration of proper anti-lock braking and electronic stability control system operation.

Specifications and technical data

• SKU: A0034319112
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0034319112
• Substitutable numbers: A0034319112 A0034319012, A 003 431 91 12, A 003 431 90 12, 0265202436, 0 265 202 436, ŁS
• Category: ABS & Stability Hydraulic Units

Application and function in the braking system

The described ABS hydraulic unit works in conjunction with the electronic anti-lock braking system control, responsible for rapid pressure modulation in the brake lines of each wheel. In Mercedes C-Class (W202), E-Class (W210), CLK (W208), and S-Class (W220) vehicles, this component is crucial for:

• maintaining wheel traction during emergency braking,
• stabilizing the vehicle on surfaces with uneven friction coefficients,
• cooperating with driver assistance systems such as traction control or electronic stability control.

Thanks to its precise hydraulic design, the pump ensures repeatable, controlled pressure build-up and reduction, which translates into predictable vehicle behavior in emergency situations.

Compatibility with Mercedes models

The Mercedes-Benz W202 W210 W208 W220 ABS Hydraulic Brake Pump Unit has been designed with the braking system architecture of specific Mercedes-Benz W202, W210, W208, and W220 generations in mind. This means it is matched in terms of:

• the layout of hydraulic ports and electrical connectors,
• mounting geometry to the chassis and subframe,
• integration with the factory ABS/ESP system controller.

The selection of a used hydraulic module for a specific engine version and vehicle year should always be based on the manufacturer's markings and the car's factory configuration. Original Mercedes brand origin helps maintain compliance with the factory operating parameters of the system.

Characteristics of the used component

As an aftermarket part, this ABS pump comes from vehicle dismantling, which allows for cost-effective brake system repair while maintaining a component with a design consistent with the manufacturer's factory standards. The used condition means that:

• the hydraulic body and valve block retain their original mounting geometry,
• the materials used are consistent with the vehicle manufacturer's requirements,
• the component can be used as a replacement in the service process after verification by a mechanic.

Such a solution is particularly beneficial for older Mercedes generations, where the availability of new modules can be limited, and maintaining consistency with the factory configuration is of great importance for the stable operation of the ABS and ESP system.

Benefits of using an original ABS hydraulic pump

Using an original ABS hydraulic pump in a Mercedes braking system brings a number of practical service and operational benefits:

• Consistency with the factory brake system design – maintaining the operating parameters specified by the manufacturer.
• Proper fitment to the vehicle's electrical and hydraulic installation – no need for modifications to wiring harnesses or lines.
• The ability to utilize existing safety system configurations (ABS, ESP, traction control) without interfering with the software.

For workshops and users, this means more efficient installation and a lower risk of problems resulting from incompatible aftermarket replacements.

Related braking system components and additional materials

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 wheel speed sensors, control modules, or pressure lines, check out the available parts in the Mercedes ABS and ESP system category.

When selecting used braking system components, it is worth following proven verification procedures. Practical tips on the safe selection of discs, calipers, and ABS components can be found in the article: Second-hand braking system: how to safely choose discs, calipers, and ABS?