Mercedes W177 Rear Brake Caliper Left N/S Carrier Unit 38L Electric Park Brake

The Mercedes W177 Rear Left Brake Caliper Rear Left is an original brake system component from the Brake Calipers and Brackets group, designed for installation on the rear left axle of the vehicle. A used OEM caliper ensures proper fitment with the Mercedes brake system's design, translating to stable braking performance and predictable vehicle behavior. This is a solution for drivers who want to maintain the factory brake characteristics at a reasonable service cost.

Specifications and technical data

• SKU: A2474231900
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2474231900
• Substitutable numbers: A2474231900, A 247 423 19 00
• Location on the vehicle: Rear, Left
• Category: Calipers & Brackets

Intended Use and Vehicle Placement

The presented caliper is dedicated for installation on the rear left side of the vehicle, which is important both structurally and for safety. Correct placement on the vehicle guarantees proper cooperation with the brake disc, pads, and brake line, as well as with assistance systems such as ABS or ESP, if present in the specific model.

Selecting the correct caliper for the axle and mounting side is crucial for even distribution of braking forces, driving stability, and proper operation of electronic safety systems. For the Mercedes W177, using an OEM component allows for maintaining the parameters intended by the vehicle manufacturer.

Technical Characteristics of the Caliper

As a component from the Brake Calipers and Brackets category, this model is responsible for generating the clamping force of the pads against the disc, and thus for the braking effectiveness of the rear axle. The caliper's construction is adapted to operate in demanding temperature and mechanical conditions, typical for both urban and non-urban driving.

Original manufacturing for the Mercedes brand means maintaining the correct geometry, mounting points, and brake fluid flow channels. This enables:

• maintaining adequate pressure in the brake circuit,
• proper cooperation with the factory pump and lines,
• stable piston operation and even pad application.

The product has an assigned OEM part number and interchangeable numbers, which facilitates compatibility verification with specific body and engine versions within the W177 series.

Benefits of Using a Used Original Caliper

Choosing a used, original brake caliper for a Mercedes is a solution that allows for cost control while maintaining the factory specifications of the brake system. The most significant advantages of this solution include:

• factory fitment to the hub, caliper bracket, and other system components,
• maintaining the original brake performance characteristics,
• direct installation in place of a worn component,
• no need for brake system modifications.

A used OEM caliper is particularly attractive for post-accident repairs, replacement of a unilaterally damaged component, or restoring a vehicle to a near-factory condition without investing in a full set of new components.

Selection, Installation, and Operational Safety

Before installation, it is recommended to verify the caliper's compatibility with the specific Mercedes W177 version based on the OEM part number and reference numbers. Correct component selection directly impacts driving safety, so installation should be performed by a qualified service center, following procedures for bleeding and leak testing the system.

For users who want to make informed decisions when purchasing used brake components, a guide describing key verification steps and component selection will be helpful. Detailed instructions can be found in the article Used Brake System: How to Safely Choose Discs, Calipers, and ABS?, which outlines step-by-step what to look for when selecting used components.

If you want to better understand the differences between new and used parts and consciously plan your repair budget, it is also worth familiarizing yourself with the material New or Used? A Comparison of Costs and Quality of Car Parts, which presents practical comparisons and application examples.

Expanding the Brake System in a Mercedes

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

This approach allows for a cohesive renewal of the entire braking section, reduces the risk of uneven component wear, and maintains predictable braking performance in various road conditions.