Audi A3 8P VW Golf Mk5 Rear Brake Caliper Wheel Brake Unit Left N/S 1K0615423N

Audi A3 8P VW Golf Mk5 Rear Brake Caliper Wheel Brake Unit Left N/S is an original component from the Brake Calipers and Brackets group, designed for installation on the rear axle on the driver's side. It is a practical solution for users who want to maintain the factory braking characteristics and compatibility with Audi and Volkswagen braking systems.

Specifications and technical data

• SKU: 1K0615423N-2
• Mark: Audi
• Condition: Used
• OEM Part Number: 1K0615423N
• Substitutable numbers: 1K0615423N, 1K0 615 423 N
• Location on the vehicle: Rear, Left
• Part type: Brake Caliper & Bracket
• Category: Calipers & Brackets

Purpose and fitment

The presented caliper is structurally designed for operation on the rear, left side of the vehicle. Thanks to its factory origin from the Audi range, it maintains the correct mounting points, geometry, and pad guidance, which facilitates installation and allows for seamless cooperation with stock discs and other brake system components.

This solution is suitable both for a standard replacement of a worn caliper and for restoring the full efficiency of the braking system after rear axle repairs.

Construction and function in the braking system

The rear brake caliper is responsible for evenly pressing the pads against the disc, stabilizing the vehicle's braking force. The design intended for the rear axle ensures:

• appropriately selected clamping force for the vehicle's characteristics,
• stable guidance of brake pads,
• proper cooperation with the hydraulic part of the system.

By maintaining the original geometry, this component supports even pad wear and predictable vehicle behavior during braking, which is important for both comfort and driving safety.

Benefits of using an original used caliper

An original caliper from dismantling is a reasonable compromise between cost and quality. Compared to many aftermarket replacements, it allows for maintaining:

• factory fitment to the hub, carrier, and brake lines,
• consistency with other Audi and VW brake system components,
• operating parameters specified by the vehicle manufacturer.

A used component of this class is often chosen for maintenance repairs when the priority is to maintain the proper operation of the braking system at controlled service costs.

Application in service practice

The Audi A3 8P VW Golf Mk5 Rear Brake Caliper Wheel Brake Unit Left N/S works well in situations where the existing component shows signs of wear, such as uneven braking, piston seizure, or excessive pad wear on one side. Replacing it with an original caliper from the same design group allows for restoring the correct operation of the system without the need for installation modifications.

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 carriers, check the available parts in the Audi Brake Calipers and Brackets category.

Technical support and part selection

When selecting a brake caliper, it is crucial to pay attention to the mounting side and compatibility with the specific vehicle generation. This model is intended for installation on the rear left side, which should be taken into account when planning a repair or replacing a pair of calipers on the axle.

If you want to better understand how to safely use used brake system components and how to optimize service costs, it is worth reading the guide: Brake calipers under the microscope: How to effectively reduce brake system repair costs by choosing proven recycled parts.

For additional tips on selecting used brake system components, including calipers, also look for the article Second-hand braking system: how to safely choose discs, calipers, and ABS?, which serves as a practical checklist for informed users.