Mercedes W140 Brake Caliper Front Right O/S Wheel Braking Unit A0004208583

Mercedes W140 Brake Caliper Front Right O/S Wheel Braking Unit is an original braking system component from the Brake calipers and brackets group, designed for installation on the front right axle of the vehicle. This used OEM component ensures a proper fit with the suspension and braking system design of the Mercedes S-Class W140 generation, which facilitates servicing and reduces the risk of installation issues. It is a solution for users looking for a technically verified caliper at a reasonable price.

Specifications and technical data

• SKU: A0004208583
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0004208583
• Substitutable numbers: A0004208583, A 000 420 85 83
• Location on the vehicle: Front, Right
• Category: Calipers & Brackets

Purpose and vehicle placement

The presented caliper is designed to operate on the front right side of the vehicle, in the immediate vicinity of the brake disc. It is responsible for generating the clamping force of the pads against the disc, and thus for effectively slowing down the heavy limousine that is the Mercedes W140. Proper placement on the vehicle is crucial for the correct routing of brake lines, proper system bleeding, and maintaining the factory mounting geometry.

Thanks to a design consistent with Mercedes factory standards, the caliper works with the original brackets, carriers, and mounting elements intended for the front axle. This facilitates the mechanic's work, shortens installation time, and reduces the risk of needing additional modifications.

Technical and functional characteristics

As an element in the Brake calipers and brackets category, this model is responsible for the stable guidance of brake pads and even distribution of forces during braking. The caliper design is adapted to the weight and characteristics of the Mercedes W140, which translates into predictable vehicle behavior during emergency braking, even at higher highway speeds.

The original Mercedes origin means maintaining factory manufacturing tolerances, appropriate body rigidity, and compatibility with the stock ABS/ASR system. A used caliper, after proper installation and system bleeding, allows for the restoration of full brake functionality on the front right side without the need for interfering with the system's design.

Benefits of using an original, used caliper

Using an original, used brake caliper in a Mercedes W140 is a compromise between cost and quality. Compared to many low-budget replacements, the OEM component provides:

• factory fitment to the hub, disc, and carrier,
• compliance with the braking system operating parameters specified by the manufacturer,
• easier identification and selection of pads and other consumables.

For users planning to service older premium models, such as the W140, choosing an original dismantled caliper often means more predictable braking system behavior and a lower risk of compatibility issues. More practical tips on selecting such components can be found in the article: Brake calipers under the microscope: how to reduce repair costs by choosing verified recycled parts.

Selection, installation, and service aspects

Before installation, it is recommended to verify the compatibility of the caliper with the specific engine version and model year of the Mercedes W140, taking into account the type of braking system used in the given unit. Proper selection helps avoid problems with mounting spacing, disc diameter, or pad type.

During installation, it is worth paying attention to:

• the condition of the brake lines and their tightness,
• correct routing of the flexible hose relative to the steering knuckle and shock absorber,
• thorough bleeding of the system on the front right side,
• checking the braking balance on both sides of the front axle at a diagnostic station.

Such an approach allows for fully utilizing the potential of the used caliper and ensuring stable, repeatable brake performance in daily operation.

Expanding the Mercedes braking system

If you are planning a comprehensive repair or upgrade of the braking zone in your Mercedes and need other components from the same group, such as additional calipers, brackets, or carriers, check out the available parts in the Mercedes brake calipers and brackets category.