Audi A4 B8 2.0 TDI Brake Caliper Rear Left N/S Wheel Brake Housing 8K0615403

Audi A4 B8 2.0 TDI Brake Caliper Rear Left N/S Wheel Brake Housing is an original brake system component from the Brake calipers and carriers group, designed for installation on the rear left axle of the vehicle. This used caliper with carrier provides a functional service solution, allowing for the restoration of proper brake operation while maintaining factory geometry and fitment within the Audi system.

Specifications and technical data

• SKU: 8K0615403
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0615403
• Substitutable numbers: 8K0615403, 8K0 615 403
• Location on the vehicle: Rear, Left
• Category: Calipers & Brackets

Purpose and vehicle placement

The presented caliper is dedicated for installation in the rear left part of the brake system. This placement requires maintaining appropriate structural rigidity and correct pad guidance, which ensures stable and consistent brake performance during daily operation.

The carrier is an integral mounting element responsible for the proper positioning of the pads relative to the disc. This enables even wear of the friction linings and a predictable vehicle response when the brake pedal is pressed.

Construction and function of the caliper with carrier

The caliper integrated with the carrier forms a complete working assembly for one wheel, which facilitates service and reduces the risk of installation errors. The design intended for Audi ensures:

• stable guidance of brake pads in the carrier,
• proper distribution of braking forces on the disc surface,
• consistency with the vehicle's factory hydraulic system.

By maintaining the original mounting geometry, the caliper works with factory hubs, discs, and brake lines, which translates into predictable vehicle behavior during braking.

Benefits of using an original caliper

Choosing a used, original caliper for an Audi allows you to maintain the consistency of the entire brake system with the manufacturer's specifications. Key advantages include:

• factory fitment for the Audi brake system,
• maintenance of the correct operating characteristics of the rear axle brakes,
• compatibility with standard accompanying components (discs, pads, lines),
• reasonable repair cost while maintaining parameters close to factory installation.

This solution is particularly beneficial for maintenance repairs when you want to maintain the original vehicle configuration without introducing uncertain aftermarket replacements.

Professional selection of used brake systems

When selecting a used caliper, it is worth paying attention to compatibility with the specific engine version and brake system of the vehicle, as well as the mounting parameters of the rear axle. It is helpful to compare the carrier design, mounting points, and the method of connecting the brake line and any parking brake mechanism.

To better prepare for the purchase and assessment of the condition of elements such as discs, calipers, or ABS components, it is worth using the practical tips contained in the article Second-hand brake system: how to safely choose discs, calipers, and ABS?. This is a helpful checklist that facilitates an informed choice of used brake components.

Expanding Audi brake system service

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 brackets, check the available parts in the Audi brake calipers and carriers category.

This approach allows you to select a consistent set of components in one service stage, which promotes uniform operation of the entire system and facilitates subsequent diagnostics and technical maintenance of the vehicle.