Audi A6 A7 4G8 Brake Caliper Unit Rear Right O/S 330X22mm 4G0615404A

Audi A6 A7 4G8 Rear Right Brake Caliper 330x22mm is an original part from the Brake Calipers and Brackets group, designed for the rear right axle in Audi vehicles. This used caliper offers a functional solution for drivers seeking a proven OEM part with the correct geometry and operating parameters matched to a 330x22 mm disc.

Specifications and technical data

• SKU: 4G0615404A-2
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0615404A
• Substitutable numbers: 4G0615404A, 4G0 615 404 A
• Location on the vehicle: Rear, Right
• Part type: Brake Caliper
• Category: Calipers & Brackets

Application and Compatibility with Audi Braking System

The presented caliper has been specifically designed to operate on the rear right axle, ensuring proper alignment with the disc and correct interaction with other braking system components. The design intended for a 330x22 mm disc provides adequate pad-to-disc contact area, translating to stable, predictable braking in everyday use.

Original Audi origin signifies adherence to factory manufacturing tolerances, correct mounting point placement, and compatibility with the standard brake lines and mounting hardware used in the 4G8 generation A6 and A7 models.

Caliper Construction and Operating Parameters

The caliper is part of the group of components responsible for converting hydraulic pressure into clamping force of the pads against the disc. In practice, this means:

• the caliper body is adapted to work with a disc of a specific diameter and thickness,
• the geometry of the guides and pad slots ensures even pressure application on both sides of the disc,
• the placement of hydraulic connections is consistent with the factory line layout in Audi A6/A7 4G8.

This ensures the correct braking characteristics for the rear axle, which is important for both braking effectiveness and vehicle stability during rapid deceleration.

Benefits of Using a Used Original Caliper

Choosing a used caliper of this specification is a solution that allows for cost control while maintaining the original braking system design. Key advantages include:

• factory fit for Audi A6 and A7 4G8 – no need for modifications to mountings or lines,
• preservation of the original operating characteristics of the rear axle,
• the possibility of economical brake system repair while retaining OEM parts.

A used caliper can be a good choice for post-accident repairs, replacing a seized piston, or when refurbishing the entire braking system where maintaining consistency of components from the same design line is important.

Mounting Location and Service Aspects

Its placement on the vehicle as a rear right axle component requires precise installation according to Audi service procedures. During installation, it is advisable to pay attention to:

• proper bleeding of the system after connecting the brake line,
• checking the condition of the 330x22 mm disc and pads before initial use,
• verifying the correct operation of the guides and the free return of the piston.

This approach allows for the full utilization of the used caliper's potential and reduces the risk of uneven pad wear or disc overheating.

Braking System Expansion and Educational Materials

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

When selecting used braking system components – especially calipers, discs, and ABS-related parts – a guide describing key inspection points and safety criteria will be helpful. It is worth familiarizing yourself with the article Used Braking System: How to Safely Choose Discs, Calipers, and ABS?, which serves as a practical checklist when purchasing such parts from an automotive store.

For a broader perspective on the cost-effectiveness of purchasing used car parts and the principles of making informed choices, the guide Used Parts – Your Guide to the Best Deals in the Automotive Store may also be helpful, discussing how to assess part condition and plan repairs from a budget perspective.