Mercedes W204 Brake Caliper Rear Left N/S Wheel Brake Unit A2044231581

Mercedes W204 Left Rear Brake Caliper A2044231581 is an original part from the Brake Calipers and Brackets group, designed for installation on the rear left axle of Mercedes vehicles. This used, factory caliper ensures proper brake pad guidance and stable system operation, which translates to predictable and safe braking.

Specifications and technical data

• SKU: A2044231581-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2044231581
• Substitutable numbers: A2044231581, A 204 423 15 81
• Location on the vehicle: Rear, Left
• Category: Calipers & Brackets

Purpose and Vehicle Placement

The presented caliper is designed to operate on the rear left side of the braking system. It is responsible for evenly pressing the pads against the disc, stabilizing braking force, and maintaining the correct geometry of the working elements on the rear axle.

Thanks to its dedicated placement in the vehicle, correct cooperation with other braking system components is maintained, which reduces the risk of uneven wear of pads and discs and supports the proper functioning of safety systems.

Technical and Functional Characteristics

The caliper belongs to a group of highly responsible working elements, which is why using an original Mercedes component is beneficial in terms of durability and repeatability of operating parameters. The design intended by the vehicle manufacturer ensures:

• precise guidance of brake pads within the caliper,
• stable transfer of braking forces to the rear left side of the vehicle,
• correct cooperation with the factory master cylinder and brake lines,
• maintenance of the braking system's factory operating characteristics.

A used OEM part is a solution that allows for maintaining the structural integrity of the system without the need for replacements with uncertain parameters.

Benefits of Using an Original, Used Caliper

Using an original brake caliper on a Mercedes W204 allows for maintaining factory fitment with the hub, caliper bracket, and other rear axle components. This is particularly important in vehicles where predictable response to brake pedal application and even distribution of braking forces between the right and left sides are crucial.

Choosing a used OEM component is also an economical solution – it allows for reducing service costs while maintaining a high level of safety. For many users, it is a sensible compromise between budget and quality, especially for precisely engineered components like brake calipers.

To better understand how to safely use salvaged parts in the braking system and how to assess their suitability, it is worth reading the guide: Brake Calipers Under the Microscope: How to Effectively Reduce Brake System Repair Costs by Choosing Proven Salvaged Parts.

Selection and Application in Service Practice

When selecting a caliper for a Mercedes W204, matching it to the specific vehicle version and mounting side is crucial. This model is intended for installation on the rear left axle, which must be strictly considered when planning repairs or replacements of braking system components.

In service practice, a used caliper can be used both for standard replacement of worn components and for post-accident repairs where it is necessary to restore the full functionality of the braking system while maintaining the factory design solutions.

Expanding Mercedes Braking System Service

If you are planning a comprehensive repair or upgrade of the braking area in your Mercedes and need other parts from the same group, such as additional calipers, caliper brackets, or mounting brackets, check the available parts in the category Mercedes Brake Calipers and Brackets.