Mercedes S205 Brake Caliper Rear Left Electric Handbrake 034 A2054230381

Mercedes S205 Brake Caliper Rear Left Electric Handbrake is an original Mercedes braking system component, designed for installation on the rear left axle of the vehicle. Thanks to its integrated electric parking brake, it ensures precise operation, stable vehicle holding after stopping, and consistency with the factory braking system architecture. This solution is dedicated to drivers who want to maintain factory braking characteristics and full compatibility with the car's safety systems.

Specifications and technical data

• SKU: A2054230381
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2054230381
• Substitutable numbers: A2054230381, A 205 423 03 81
• Location on the vehicle: Rear, Left
• Category: Calipers & Brackets

Purpose and function in the braking system

The presented caliper is a component mounted on the rear left side of the vehicle, working in conjunction with the brake disc, brake pads, and the electric parking brake control system. It is responsible for:

• generating braking force on the rear axle during hydraulic system operation,
• holding the vehicle in place after the electric handbrake is engaged,
• cooperating with safety systems, such as ABS or ESP, in accordance with the manufacturer's factory specifications.

Thanks to a design consistent with the solutions used in S205 series estate models, the caliper maintains proper operating parameters under typical operating conditions, including varying rear axle loads.

Construction and key technical features

As an element from the Brake calipers and carriers category, this model combines a hydraulic part with an electric parking brake module. This configuration allows for:

• precise control of the pad clamping force against the disc during service braking,
• automatic or manual engagement of the parking brake from the cabin,
• maintaining vehicle stability on inclines thanks to a properly selected holding force.

This solution is particularly important in vehicles equipped with advanced driver assistance systems, where the correct operation of the caliper affects the effectiveness of hill-start assist or automatic vehicle hold functions.

Benefits of using an original, used caliper

Choosing an original, used brake caliper for a Mercedes allows you to combine cost control with maintaining the proper operating parameters of the system. The most important advantages of such a solution include:

• factory fitment for a specific body version and braking system,
• maintaining the original operating characteristics of the electric handbrake,
• the possibility of direct installation in place of a worn component, without the need for system modifications.

The used condition means that the component comes from dismantling, which in practice allows for economical repair while maintaining compliance with the manufacturer's solutions. This is particularly beneficial when servicing vehicles that are a few years old, where cost optimization is of great importance.

Professional selection and installation

To fully utilize the capabilities of this caliper, it is worth ensuring proper selection for the specific vehicle version and installation performed by a workshop familiar with the specifics of electric parking brakes in Mercedes vehicles. It is crucial to:

• check compatibility with the braking system of the specific unit,
• properly bleed the hydraulic system after installation,
• perform adaptation or calibration of the electric handbrake in accordance with the service procedure.

Such an approach allows for maintaining stable and predictable braking system operation, which translates into safety and comfort of vehicle use.

More about brake calipers and recycled parts

If you want to better understand how to safely use original, used braking system components and how to reduce service costs without sacrificing quality, it is worth checking out specialized materials. Practical tips on how to consciously choose such components can be found in the article Brake calipers under the microscope: how to reduce repair costs by choosing verified recycled parts.

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 additional calipers, brackets, or guide carriers, check out the available parts in the Mercedes Brake calipers and carriers category.