Mercedes W205 Brake Pump ABS ESC Hydraulic Unit Module A2534312800 A2539011400

Mercedes W205 Brake Pump ABS ESC Hydraulic Unit Module is an original component from the ABS and ESP System group, designed for Mercedes vehicles. The integrated hydraulic module with control electronics supports the operation of ABS and ESC systems, ensuring stable braking and predictable vehicle behavior in critical road situations.

Specifications and technical data

• SKU: A2534312800
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2534312800
• Substitutable numbers: A2534312800, A 253 431 28 00, A2539011400, A 253 901 14 00
• Category: ABS & Stability Hydraulic Units

Technical characteristics and vehicle function

The presented brake pump with the ABS block and ESC controller is responsible for precise pressure dosing in the brake circuits and dynamic correction of braking forces on individual wheels. The integrated controller analyzes signals from wheel speed sensors and other vehicle modules, then controls the valves and the pump to limit wheel slip and support driving stability.

A solution of this type is designed by the vehicle manufacturer as a coherent hydraulic-electronic system, which translates into a perfect fit for the electrical architecture of the Mercedes W205 and compatibility with factory active safety systems.

Benefits of using an original ABS/ESC module

Using an original component from the ABS and ESP System group allows you to maintain the operating parameters specified by Mercedes engineers. In practice, this means:

• consistent operation of ABS and ESC systems with other vehicle modules,
• appropriate intervention characteristics during emergency braking,
• proper cooperation with the braking system and driver assistance systems.

For the user, this translates into predictable vehicle behavior, stability during braking on slippery surfaces, and a reduction in the risk of incorrect error messages resulting from electronic mismatches.

Condition, origin, and service application

The offered item is used, which in the case of original Mercedes components is an attractive service solution – it allows for lower repair costs while maintaining the factory design and system logic. This type of module is particularly useful for:

• repairs after an ABS or ESC system failure,
• clearing errors related to the operation of the brake pump within the ABS block,
• restoring the efficiency of the braking system after mechanical damage.

Before installation, it is recommended to verify compatibility with the specific vehicle equipment version and to carry out appropriate diagnostic and adaptation procedures in the vehicle.

Integration with the ABS and ESP System in Mercedes

The module has been designed to work within the Mercedes electronic architecture, allowing it to cooperate with the network of controllers responsible for driving stability, traction control, and brake force distribution. A correctly selected and installed component helps restore full functionality of safety systems, which is important both for driving comfort and for meeting technical inspection requirements.

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

Expert support and selection of used components

When selecting used OEM components for safety systems, it is worth using reliable sources of knowledge. In the context of repairing powertrains and differentials, an article describing the advantages of using original, used components instead of random replacements may be helpful – you can find it here: Humming differential? Find out why a used OEM drive axle is a better investment than an uncertain replacement. Although it concerns drive axles, the approach to choosing OEM parts presented there well illustrates why original safety system modules are a sensible investment.