Audi TT FV Brake Caliper Wheel Brake Unit Housing Rear Left N/S 8V0615423F

Audi TT FV Brake Caliper Wheel Brake Unit Housing Rear Left N/S 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 component ensures a factory-fit for the Audi braking system and allows for a technically correct replacement of a worn caliper without the need for system modifications. It is a solution for users who expect a proven design and the maintenance of standard brake performance parameters.

Specifications and technical data

• SKU: 8V0615423F
• Mark: Audi
• Condition: Used
• OEM Part Number: 8V0615423F
• Substitutable numbers: 8V0615423F, 8V0 615 423 F
• Location on the vehicle: Rear, Left
• Category: Calipers & Brackets

Purpose and vehicle placement

The presented caliper is designed to operate on the rear left side of the brake system, which is crucial for the correct distribution of braking force and vehicle stability. The design is adapted to the suspension geometry of the Audi TT FV generation, ensuring that the correct mounting points and compatibility with the manufacturer-specified brake discs and pads are maintained.

Precise fitment to the specific mounting location reduces the risk of improper caliper alignment, uneven pad wear, or incorrect piston operation. This is particularly important in vehicles with sporty characteristics, where the brake system operates under increased thermal and mechanical loads.

Original origin and compatibility

The caliper comes from the Audi brand, which means it is a component compliant with factory quality and design standards. Its original origin facilitates part selection based on the OEM number and interchangeable numbers (visible in the technical specification), and minimizes the risk of compatibility issues that may occur with aftermarket parts of uncertain origin.

Thanks to this solution, a direct replacement of a worn or damaged caliper is possible without the need to interfere with lines, mounts, or mating components. This translates into efficient installation and the preservation of the standard operating parameters of the Audi TT FV brake system.

Characteristics of the used caliper

The item is offered in Used condition, meaning it has been removed from a vehicle but retains full structural functionality. A used brake caliper is a sensible choice for drivers who want to maintain the vehicle's factory specification while optimizing service costs. In practice, this allows for an economical repair of the brake system while maintaining the original geometry and operating characteristics.

When choosing such a component, it is worth paying attention to the condition of the working surfaces, threads, and mounting points, as well as the correct operation of the caliper mechanism after installation and system bleeding. A correctly selected and installed caliper ensures stable braking, even pad wear, and predictable vehicle behavior during intensive braking.

Safety of selection and installation

To maximize the potential of this component, installation in a specialized service center is recommended, following the manufacturer's procedures regarding tightening torques, bleeding, and system leak testing. It is also crucial to use pads and discs with parameters consistent with Audi's recommendations, which allows for maintaining stable braking force on the rear axle.

If you want to deepen your knowledge about the safe selection of used brake system components, practical methods for assessing their condition, and installation principles, check out our guide: Second-hand brake system: how to safely choose discs, calipers, and ABS?. This is a valuable source of information for those who approach brake service consciously.

Expanding the Audi brake system

If you are planning a comprehensive repair or upgrade of the braking area in your Audi and need other components 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.