Hydraulic Unit Mercedes W213 W217 W257 ABS Pump A2134315900

Hydraulic Unit Mercedes W213 W217 W257 ABS Pump is an original, used hydraulic module for the anti-lock braking system, designed for Mercedes vehicles of the W213, W217, and W257 series. This component is responsible for precise pressure control in the brake circuits, working in conjunction with the electronics of the ABS and ESP system, which translates into driving stability and braking efficiency in various road conditions.

Specifications and technical data

• SKU: A2134316201-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2134316201
• Substitutable numbers: A2134316201, A 213 431 62 01, A2134315900, A 213 431 59 00
• Category: ABS & Stability Hydraulic Units

Purpose and function in the ABS and ESP system

The presented ABS pump plays a key role in the hydraulic part of the electronic stability control system. It is responsible for:

• regulating brake fluid pressure in individual wheel circuits,
• cooperating with wheel speed sensors and the system controller,
• implementing anti-lock braking functions during deceleration,
• supporting the operation of traction control and electronic stability systems.

Thanks to this module, the vehicle's braking system can react dynamically to changes in grip, which increases safety during emergency braking, driving on slippery surfaces, or avoiding obstacles.

Benefits of using an original hydraulic module

Using an original hydraulic module in Mercedes W213, W217, and W257 series cars ensures high compatibility with the vehicle's factory configuration. The most important advantages include:

• Full integration with the factory controller – correct communication with the vehicle's electronics and safety systems.
• Stable braking system performance parameters – maintaining predictable ABS and ESP operating characteristics.
• Reduced risk of diagnostic errors – lower probability of incorrect system messages appearing.
• Possibility of using the existing hydraulic and electrical installation – without the need to modify wiring harnesses or lines.

Choosing such a component is particularly important in vehicles equipped with advanced driver assistance systems, where the correct operation of the braking system affects the performance of many related functions.

Characteristics of the used component

The offered module comes from disassembly and has the status of a used component. This type of solution allows for significant repair cost savings while maintaining the original design and compatibility with the given vehicle generation. In practice, this means the ability to restore the efficiency of the ABS and ESP system without the need to invest in a new subassembly.

Before installation, it is recommended to perform standard braking system diagnostics and verify the correct operation of the system after installation, in accordance with the service procedures for the specific Mercedes series.

Integration with other ABS and ESP system components

The hydraulic ABS pump works with wheel speed sensors, the electronic controller, and the mechanical part of the braking system. A correctly selected module allows for:

• maintaining stable operation of braking assistance systems,
• preserving factory braking characteristic settings,
• reducing wear on friction elements through precise pressure regulation.

When replacing this subassembly, it is worth paying attention to compatibility with the specific body generation and vehicle equipment configuration to ensure proper cooperation with the existing installation.

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 valves, check the available parts in the ABS and ESP System Mercedes category.

Support in selecting used components

When choosing a used hydraulic module, it is worth knowing the basic principles of assessing technical condition and matching it to a specific vehicle version. Helpful guides describing how to safely use the market for dismantled parts, how to interpret manufacturer markings, and what to pay attention to during installation and subsequent operation can be useful. Practical tips can be found in the article Used parts – Your guide to the best offers in the automotive store, which discusses the principles of reasonable selection and operation of such subassemblies.

For drivers interested in a broader look at the diagnostics of drivetrain components and the relationship between the operation of safety systems and power transmission, the guide Clutch and dual-mass flywheel – diagnostics and selection of parts for the drivetrain may also be useful, containing practical examples and answers to frequently asked questions.