Mercedes W204 W207 Wheel Brake Disc Set Rear Left Right N/O/S A2044231512

Mercedes W204 W207 Wheel Brake Disc Set Rear Left Right is a set of original brake system components designed for the rear axle, covering both the left and right sides. The set has been specifically engineered for Mercedes W204 and W207 class models, ensuring precise fitment, stable brake pad guidance, and predictable vehicle behavior during braking. Thanks to the use of factory-spec disc geometry, the system maintains proper operating characteristics and consistency with the vehicle's safety systems.

Specifications and technical data

• SKU: A2044231512
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2044231512
• Substitutable numbers: A2044231512, A 204 423 15 12
• Location on the vehicle: Rear, Right, Left
• Category: Brake Disc Rotors

Purpose and rear axle fitment

The presented set includes discs mounted on the rear axle on the left and right sides, which allows for the simultaneous replacement of both components in a single service operation. This approach is recommended from the perspective of safety and uniform system performance, as both sides of the axle receive components with the same wear characteristics and the same design specifications.

The dedicated application for Mercedes W204 and W207 series vehicles ensures the maintenance of the correct working diameter, appropriate friction surface, and compatibility with factory calipers and brake pads. As a result, the driver receives predictable brake pedal response, driving stability, and consistent braking force across the full range of operational loads.

Technical characteristics of the brake disc set

As components in the Brake discs category, the parts included in the set are responsible for converting the vehicle's kinetic energy into heat through friction between the disc's working surface and the brake pad. The design of the discs has been developed with a focus on:

• stable operation within typical brake system operating temperature ranges,
• maintaining adequate rigidity under axial and radial loads,
• proper interaction with the vehicle's ABS/ESP systems.

The original Mercedes origin helps maintain factory performance parameters, such as uniform wear, resistance to thermal deformation, and the correct friction characteristics when paired with the brake pads specified by the manufacturer.

Component condition and service application

The brake disc set is offered as used parts, which allows for reduced repair costs while maintaining the vehicle manufacturer's original specifications. This type of solution is often chosen for maintenance repairs where the priority is combining proper functionality with a reasonable service budget.

In workshop practice, a complete replacement of discs on the rear axle in a single service cycle facilitates system condition monitoring, enables simultaneous assessment of pads, flexible hoses, and calipers, and minimizes the risk of differences in braking efficiency between the left and right sides. Using a set dedicated to a specific Mercedes generation simplifies part selection and reduces the risk of installation errors.

Benefits of using original Mercedes brake discs

Choosing a brake disc set designed for a specific vehicle platform translates into a number of practical benefits:

• Factory fitment – maintaining the correct geometry and operating parameters of the brake system, without the need for adaptation or modification.
• Consistency with safety systems – proper cooperation with ABS, ESP, and traction control systems, which rely on predictable braking characteristics.
• Service cost optimization – the use of used, original components allows for lower repair costs compared to new parts, while maintaining compliance with the manufacturer's design.

If you are planning a comprehensive repair or upgrade of the braking zone in your Mercedes and need other items from the same group, such as additional disc sets, compatible pads, or flexible hoses, check out the available parts in the Mercedes brake discs category.

Technical support and knowledge about the brake system

When selecting brake system components, it is worth using reliable sources of knowledge to properly assess the condition of calipers, pads, and discs. Proper diagnostics and the skillful use of reclaimed parts allow for significantly lower vehicle maintenance costs without compromising safety.

If you want to deepen your knowledge on the selection and operation of brake components, read the article Brake calipers under the microscope: how to reduce brake system repair costs by choosing proven reclaimed parts, which discusses the practical aspects of using original, used components in vehicle servicing.