Brake Disc Plate Mercedes W177 W247 Rear Left N/S Protection Shield A2474230900

The Left Rear Brake Disc Shield for Mercedes W177/W247 is an original brake system component designed for installation on the left rear side. It provides effective protection for the disc against road debris, supporting stable brake operation and improving the durability of the entire assembly.

Specifications and technical data

• SKU: A2474230900
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2474230900
• Substitutable numbers: A2474230900, A 247 423 09 00
• Location on the vehicle: Rear, Left
• Category: Brake Disc Rotors

Purpose and Function in the Braking System

The presented shield is a component that works in conjunction with Brake Discs on the rear axle, on the left side of the vehicle. Its task is to limit direct contact of the disc with water, mud, road salt, and small stones, which reduces the risk of accelerated corrosion and uneven wear of the working surface.

Thanks to its precise fit to the geometry of the hub and brake disc in Mercedes compact class models, the shield helps maintain stable operating conditions for the pads and disc, which translates into repeatable, predictable brake performance in daily use.

Original Mercedes Origin and Fitment

This part comes from the Mercedes line, meaning it retains factory geometry, mounting points, and appropriate material stiffness. The original left rear brake disc shield for W177/W247 ensures:

• precise fitment to the steering knuckle and hub on the left rear side,
• compatibility with the factory braking system without the need for modifications,
• maintenance of the manufacturer's designed protection for the disc against external factors.

Such a fitment is particularly important in modern models where space around the braking system is limited, and an incorrectly shaped shield can cause rubbing or unwanted vibrations.

Characteristics of a Used Part

The shield is in used condition, which in practice means it may show signs of wear typical for components installed in the underbody area, while maintaining its protective functionality. For many users and workshops, this is a reasonable compromise between repair cost and retaining the original manufacturing quality characteristic of Mercedes parts.

Choosing an original, used component often allows for a better replication of factory fitment than with aftermarket parts of universal geometry, which is important for both durability and driving comfort.

Importance of Proper Brake Disc Protection

A correctly selected left rear brake disc shield in the Mercedes W177/W247 influences:

• reduction of corrosion on the working surface of the disc,
• minimization of the risk of mechanical damage from stones and debris,
• more stable operating conditions for brake pads in adverse weather conditions,
• more even wear of friction components in the long term.

For workshops and users who care about the technical condition of the braking system, this is an important element complementing the replacement of discs and pads, especially in vehicles used year-round.

Complementary Mercedes Braking System Components

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 discs, pads, or brake lines, check the available parts in the Mercedes Brake Discs category.

To better plan your service and optimize the cost of brake system repairs, it is also worth familiarizing yourself with the guide on brake component refurbishment and selection – practical tips can be found in the article “Brake Calipers Under the Magnifying Glass: How to Effectively Reduce Brake System Repair Costs by Choosing Proven Recycled Parts”.