Audi A1 S1 8X Brake Caliper Wheel Braking Unit Rear Left N/S Red 8X0615423A

Audi A1 S1 8X Brake Caliper Wheel Braking Unit Rear Left N/S Red is an original brake system component designed for installation on the rear left axle of the vehicle. Thanks to its factory Audi design, it ensures precise cooperation with the brake disc and pads, stable pad guidance, and consistent, predictable performance in daily operation. The red finish gives the braking zone a more dynamic, sporty character while maintaining full technical functionality.

Specifications and technical data

• SKU: 8X0615423A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8X0615423A
• Substitutable numbers: 8X0615423A, 8X0 615 423 A
• Location on the vehicle: Rear, Left
• Part type: Brake Caliper
• Category: Calipers & Brackets

Purpose and vehicle placement

The presented brake caliper is designed to operate on the rear left side of the brake system in Audi A1 and S1 models of the 8X generation. It is responsible for evenly pressing the pads against the disc, stabilizing braking force, and maintaining the proper geometry of the entire brake assembly on this axle. Its factory origin from the Audi group ensures the preservation of correct mounting geometry, appropriate piston travel, and compatibility with original lines and hardware, which facilitates installation and subsequent maintenance.

Construction and performance features

As an element from the Brake calipers and carriers category, this model is a key component of the brake system, responsible for converting hydraulic pressure into pad clamping force. The red paint serves both an aesthetic and protective function, shielding the body against adverse external conditions.

• stable guidance of brake pads during braking and pedal release,
• maintaining the correct position relative to the disc, which reduces the risk of uneven wear,
• piston operating characteristics designed for Audi, promoting predictable braking force modulation. A caliper configured in this way performs well both in daily city driving and in more dynamic use, typical for the S1 version.

Condition, origin, and benefits of choosing used parts

The offered item is an original, used Audi brake caliper. Choosing a factory component from dismantling allows you to maintain compatibility with the vehicle's design while significantly reducing repair costs compared to new replacements of unknown origin. Original calipers are designed for long-term operation, which is why, with proper installation and maintenance, they can continue to provide stable performance parameters. If you want to better understand how to safely use recycled parts and how to assess their suitability, it is worth reading our guide: Brake calipers under the microscope: how to effectively reduce brake system repair costs by choosing proven recycled parts.

Application in service and brake system upgrades

This caliper will work well both for standard replacement of a damaged component and for upgrading the rear axle towards a sportier look thanks to the red color scheme. In practice, this means the possibility of restoring the factory brake configuration in the Audi A1 / S1 8X without the need for modifying mounts or lines, provided you select the appropriate discs and pads compatible with your equipment version. 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, brackets, or mounting carriers, check out the available parts in the Audi brake calipers and carriers category.

Summary

Audi A1 S1 8X Brake Caliper Wheel Braking Unit Rear Left N/S Red is a factory component intended for direct installation in the brake system on the rear left axle. It combines original Audi design with an attractive, sporty finish, enabling effective repair or restoration of the factory brake configuration while maintaining a favorable cost-to-quality ratio.