Mercedes W447 Brake Disc Plate Cover Right O/S 114 CDI 651950 A4474210100

Mercedes W447 Brake Disc Plate Cover Right O/S 114 CDI is an original brake system component designed for installation on the right side of the vehicle. It provides effective protection for the brake disc against contaminants, moisture, and minor mechanical damage, which promotes stable brake performance. Thanks to its factory origin from the Mercedes range, you maintain the correct geometry and fitment to the hub and steering knuckle construction.

Specifications and technical data

• SKU: A4474210100
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A4474210100
• Substitutable numbers: A4474210100, A 447 421 01 00
• Location on the vehicle: Right
• Category: Other Brake Parts

Purpose and technical function

The described brake disc plate cover is dedicated to the Mercedes W447 114 CDI series models, where it is responsible for shielding the working surface of the disc from the inside. The positioning on the right side of the vehicle allows for precise fitment to the specific caliper, hub, and suspension geometry, without the need for modifications or fitting universal replacements.

This component performs several key operational functions:

• limits the ingress of water, mud, and road salt to the brake disc,
• reduces the risk of accelerated corrosion of the disc's working surface,
• stabilizes the operating conditions of the brake pads in typical road conditions,
• supports the maintenance of even wear of friction elements.

Benefits of using an original cover

Using an original cover in the Mercedes brake system translates into predictable vehicle behavior during braking. The design, matched to the specific 114 CDI engine version and W447 platform, ensures:

• proper airflow guidance around the disc,
• no interference with the caliper, hub, or suspension components,
• easier installation and removal during brake servicing.

For workshops and users, this means shorter service time and a lower risk of incorrect installation compared to parts not factory-intended for this model.

Condition, fitment, and installation

The cover is offered as a used part, which allows for an economical repair while maintaining the manufacturer's original specifications. The positioning on the right side of the vehicle facilitates the selection of the correct element in the event of one-sided damage or corrosion of the existing cover.

During replacement, it is recommended to:

• verify the condition of the brake discs and pads,
• clean the mounting surfaces on the steering knuckle/hubs,
• inspect brake lines and sensors (if present near the cover).

This approach allows for consistent service of the braking zone and limits the need for subsequent disassembly in a short time.

Technical support and part selection

For this model, dedicated manufacturer markings and interchangeable numbers are available, which facilitates unambiguous identification of the element in service catalogs and part selection systems. In case of doubts regarding fitment to a specific body version or brake system configuration, it is worth using factory markings or the vehicle's VIN.

If you are planning a comprehensive repair or upgrade of the braking zone in your vehicle and need other elements from the same group, such as discs, pads, or brake lines, check the available parts in the Other Mercedes category.

To better understand the differences in the construction of brake and chassis systems between standard and sports versions, you can read an article discussing RS models – Audi RS vs other models – what is hidden under the hood and chassis?. This will allow for a better assessment of the importance of properly selected components in the context of performance and safety.