Mercedes SLK R171 Brake Pump ABS ESP Hydraulic Unit A0054310212 A0345456032

Mercedes SLK R171 Brake Pump ABS ESP Hydraulic Unit is a specialized hydraulic module controlling the operation of the anti-lock braking and electronic stability program systems. As an element of the ABS and ESP System group, it is responsible for precise pressure distribution in the brake circuits and integration with the vehicle's electronics, which translates into safe and predictable vehicle behavior on the road. This solution is intended for users who expect a proven, factory-standard design tailored to the specifics of Mercedes models.

Specifications and technical data

• SKU: A0054310212
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0054310212
• Substitutable numbers: A0054310212, A 005 431 02 12, A0345456032, A 034 545 60 32
• Category: ABS & Stability Hydraulic Units

Purpose and function in the braking system

The hydraulic ABS/ESP module in the Mercedes SLK R171 plays a key role in managing brake fluid pressure during emergency braking and during interventions by the electronic stability program. The integrated brake pump works with wheel speed sensors and the control unit, enabling:

• precise limitation of wheel slip during sudden braking,
• control of brake force distribution between the axles,
• cooperation with the ESP system during trajectory correction,
• maintenance of vehicle stability on surfaces with varying grip.

As a result, the driver receives a predictable response from the braking system, and the vehicle maintains better stability in critical road situations.

Benefits of using the original hydraulic module

Using an original module from the ABS and ESP System group in a Mercedes ensures compliance with the factory performance characteristics of safety systems. The design of the pump and hydraulic block is matched to the vehicle's parameters, which reduces the risk of control unit errors and communication problems within the vehicle network. In practice, this means:

• stable operation of ABS and ESP systems across the full speed range,
• proper cooperation with the existing electrical installation and sensors,
• preservation of factory emergency braking and stability control strategies,
• easier computer diagnostics at the service center.

This solution is particularly beneficial for repairs where the priority is to maintain the original handling characteristics and vehicle safety.

Installation and operational characteristics

The hydraulic ABS/ESP module designed for the Mercedes SLK R171 is engineered as a drop-in replacement, which facilitates workshop work and shortens replacement time. The design provides for compatibility with the original brake lines and the vehicle's electrical harness. During installation, it is important to:

• properly bleed the braking system after installation,
• perform adaptation and functional testing of the ABS/ESP system using diagnostic equipment,
• verify the tightness of hydraulic connections after the first operating cycles.

Such an approach allows for the restoration of full functionality of active safety systems while maintaining high operational repeatability.

Product condition and use in service practice

The offered module comes from the used parts group, which allows for a significant reduction in repair costs while maintaining the original Mercedes design. This type of solution is often chosen by professional workshops specializing in the brand, especially when repairing vehicles that are used intensively or have higher mileage. In service practice, such an element proves to be an economical alternative to a new component, while maintaining compatibility with factory software and vehicle architecture.

Expanding knowledge about drivetrains and safety systems

In Mercedes vehicles with advanced traction and stability systems, the cooperation of the ABS/ESP system with the drivetrain on one or more axles is crucial for maintaining predictable handling. If you want to better understand how stability systems interact with various all-wheel-drive solutions in modern cars, it is worth checking out our guide: xDrive, 4Matic, quattro or 4Motion – a comparison of AWD systems from BMW, Mercedes, Audi and VW.

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 out the available parts in the Mercedes ABS and ESP System category.