Audi A3 8P Suspension Leg Wheel Carrier Hub Brake Disc Rear Left N/S 1K0505435AB

The Rear Left Wheel Hub, Bearing, and Brake Disc Assembly for Audi A3 8P is a complete component from the Suspension Replacement Kits group, designed for installation on the rear left side of the vehicle. This is a practical solution for Audi users who want to systematically restore suspension geometry and ensure proper operation of the running gear and braking system.

Specifications and technical data

• SKU: 1K0505435AB-4
• Mark: Audi
• Condition: Used
• OEM Part Number: 1K0505435AB
• Substitutable numbers: 1K0505435AB, 1K0615123E, 1K0615301T
• Location on the vehicle: Rear, Left
• Category: Suspension Component Replacement Kits

Purpose and Function in Audi A3 8P Suspension

The described suspension assembly is responsible for stable wheel guidance on the rear left axle and for transferring loads between the body and the road. The steering knuckle integrated with the wheel hub and brake disc works in conjunction with control arms, the shock absorber, and braking system components, ensuring:

• maintenance of correct wheel geometry on the rear axle,
• secure mounting of the wheel hub and bearing,
• stable positioning of the brake disc relative to the caliper,
• proper cooperation with the ABS/ESP system (depending on vehicle configuration).

This allows the entire suspension system to work cohesively, and the vehicle maintains predictable behavior during braking, acceleration, and cornering.

Benefits of Using a Complete Rear Left Assembly

Using a complete rear left component for the Audi A3 8P reduces the number of service operations and simplifies installation. In one assembly, you receive key components responsible for wheel guidance and brake interaction, which:

• simplifies the replacement process compared to selecting individual parts,
• reduces the risk of incompatibility between individual elements,
• facilitates maintaining structural consistency on the rear left side,
• promotes even suspension operation on both sides of the axle when replaced in pairs.

For workshops and private users, this means a more predictable repair outcome and a faster return of the vehicle to full operational status.

Mounting Characteristics and Fitment

The component is specifically designed for the Audi A3 8P platform, ensuring it retains factory mounting points and integrates with the original suspension architecture. Precise fitment for the rear left side minimizes the need for modifications and allows focus on correct installation and subsequent geometry checks.

In practice, this translates to:

• easier positioning of the component in the wheel arch,
• correct alignment of the disc plane relative to the brake caliper,
• maintenance of proper wheel camber and toe angles after adjustment.

Used Condition – A Conscious Choice for Suspension Service

The presented assembly is a used component, offering a sensible compromise between repair cost and maintaining the original Audi construction. For many users, this is a way to economically rebuild the rear axle while retaining components that are consistent with the manufacturer's original specifications.

Before installation, the standard workshop procedure is recommended: inspect mounting surfaces, contact points with control arms, and assess the condition of cooperating brake components and bearings to ensure the entire suspension system operates cohesively on the rear left side.

Technical Support and Additional Knowledge

To better plan suspension work, it is advisable to consult educational materials on the diagnosis and maintenance of running gear systems. Practical tips on how to care for shock absorbers, control arms, and stabilizers in various models can be found in the article Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers, which discusses issues related to the Audi A3 8P platform, among others.

If you are planning a comprehensive repair or upgrade of the rear suspension area in your Audi and need other parts from the same group, such as additional steering knuckles, wheel hubs, or complete rear axle modules, check the available parts in the Audi Suspension Replacement Kits category.