Audi Q3 8U 2.5 TFSI Suspension Leg Rear Left N/S Wheel Carrier Brake Disc

Audi Q3 8U 2.5 TFSI Suspension Leg Rear Left N/S Wheel Carrier Brake Disc is a factory-original component from the Suspension replacement kits category, designed for the rear axle on the driver's side. Thanks to the original Audi design, it ensures proper geometry, handling stability, and predictable vehicle behavior during daily use.

Specifications and technical data

• SKU: 3C0505433G-3
• Mark: Audi
• Condition: Used
• OEM Part Number: 3C0505433G
• Substitutable numbers: 3C0505433G, 3C0 505 433 G, 8U0615403, 8U0 615 403, 1K0615601N, 1K0 615 601 N
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and function in the chassis system

The described element serves as a complete rear left suspension assembly with a wheel carrier and brake disc, dedicated to the Audi Q3 8U model with the 2.5 TFSI engine. It is responsible for stable wheel guidance, transferring loads from the body to the road, and maintaining the correct position of the hub in relation to the braking system and the rest of the suspension. Thanks to the factory Audi design, the correct rear axle geometry is maintained, which translates into:

• precise vehicle handling in corners,
• even tire wear,
• stability at higher speeds and during braking.

Assembly construction and key technical features

The Audi Q3 8U 2.5 TFSI Suspension Leg Rear Left N/S Wheel Carrier Brake Disc includes components responsible for wheel mounting and interaction with the braking system. The integrated wheel carrier works with the brake disc to form a cohesive system that transfers braking forces to the body and ensures proper hub guidance. The vehicle placement, defined as rear – left side, facilitates clear identification of the part when selecting it for a specific Audi Q3 8U unit. This is particularly important during suspension repairs, where symmetry and correct placement of components have a direct impact on driving safety.

Benefits of using an original suspension assembly

Using an original Audi suspension assembly in a used condition allows for maintaining the factory operating parameters of the chassis while optimizing repair costs. The element is structurally matched to the Audi Q3 8U 2.5 TFSI platform, which reduces the risk of installation problems and eliminates the need for modifications. The main advantages of this solution include:

• factory fitment to the body and braking system,
• preservation of the handling characteristics designed by the manufacturer,
• consistency with other rear axle components,
• possibility of economical repair while maintaining OEM standards.

Professional selection and application in service practice

When replacing the rear left suspension assembly in an Audi Q3 8U 2.5 TFSI, it is crucial to match the element to the specific vehicle version and check the condition of other rear axle components. In workshop practice, replacing the wheel carrier and brake disc is often combined with checking bushings, links, and geometry to restore full vehicle stability after the repair. For Audi users who want to better understand the relationship between suspension and drivetrain, an expert guide on diagnostics and selecting OEM parts will be useful: Repairing Quattro drivetrain and suspension in Audi models – when is it worth choosing used factory components.

Comprehensive Audi suspension modernization

If you are planning a comprehensive repair or modernization of the suspension area in your Audi and need other elements from the same group, such as control arms, springs, or shock absorbers, check the available parts in the Audi suspension replacement kits category.