Audi A3 S3 RS3 8V TT Red Brake Caliper Braking Unit Rear Left N/S 8V0615423A

Visual condition of the part 

The product shows signs of use visible in the photos. 

Audi A3 S3 RS3 8V TT Red Brake Caliper Braking Unit Rear Left N/S is an original braking system component from the Brake Calipers and Brackets category, designed for installation on the rear left axle. The red finish gives the braking zone a distinctly sporty character while maintaining the factory design of the Audi braking system.

Specifications and technical data

• SKU: 8V0615423A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8V0615423A
• Substitutable numbers: 8V0615423A, 8V0 615 423 A
• Location on the vehicle: Rear, Left
• Color: Red
• Category: Calipers & Brackets

Purpose and compatibility with Audi models

The presented caliper is designed for Audi sports models from the A3, S3, RS3 8V generation family and Audi TT, where precise pad guidance and stable operation of the braking system on the rear left axle are required. The OEM design ensures proper mounting geometry, correct positioning relative to the disc, and compatibility with factory accompanying components, such as the carrier or brake lines.

By maintaining the original specification, this caliper allows for a technically correct replacement of a damaged component or the restoration of full braking system efficiency after a collision or intensive use, without the need to interfere with the suspension or braking system design.

Technical characteristics and color scheme

The component is intended for installation in the rear of the vehicle, on the left side, which is crucial for maintaining the correct operating direction of the mechanism and proper bleeding. The applied red housing finish emphasizes the sporty character of the S and RS versions and also complements wheels with an open design, exposing the braking zone.

As a part from the Brake Calipers and Brackets category, the product is responsible for evenly pressing the pads against the disc, stable piston operation, and maintaining appropriate pressure in the circuit. Proper fitment to the specific axle and side of the vehicle minimizes the risk of uneven pad wear and improper parking brake operation, if integrated with the caliper.

Benefits of using an original, used caliper

Choosing an original, used Audi brake caliper allows for significant repair cost savings while maintaining factory design and fitment. This type of component is designed for specific models and engine versions, which translates into proper braking characteristics and compatibility with the stock ABS/ESP system.

With proper installation and maintenance (fluid replacement, bleeding, inspection of pads and discs), such a caliper can provide stable, repeatable braking force and predictable vehicle behavior in emergency situations. This is a particularly beneficial solution for users who want to combine reasonable repair costs with maintaining the original technical specifications of the braking system.

To better understand how to safely use recycled parts in the braking system and how to optimize service costs, it is worth reading the article: Brake calipers under the microscope: How to effectively reduce braking system repair costs by choosing proven recycled parts.

Application in braking zone upgrades

Due to the red finish and its intended use for high-performance models, this caliper works well both for standard replacement of a worn component and for upgrading the braking zone towards a sportier look. Maintaining the original design allows you to avoid fitment problems that often occur when using unverified replacements.

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

Summary and additional materials

Audi A3 S3 RS3 8V TT Red Brake Caliper Braking Unit Rear Left N/S is a solution for drivers who expect factory fitment, consistent braking system operation, and an aesthetic, sporty look for the rear axle. The original design facilitates trouble-free installation, and the use of a pre-owned component allows you to optimize the repair budget without sacrificing proper operating parameters.

If you are considering when it is worth choosing an original part, when a replacement, and when a used element, the following guide may be helpful: Original, replacement, or used – which car parts are the most cost-effective?. This will make it easier for you to make an informed decision when planning the service of your Audi.