The Audi A6 C6 Subframe Rear Axle Carrier Reinforcement is a structural component from the Longitudinal Body Frame Parts and Brackets group, designed for the rear suspension. It provides stable support for the rear axle components, influencing steering precision and the durability of the entire drivetrain.
Specifications and technical data
- SKU: 4F0505235AJ-1
- Mark: Audi
- Condition: Used
- OEM Part Number: 4F0505235AJ
- Substitutable numbers: 4F0505235AJ, 4F0 505 235 AJ
- Location on the vehicle: Rear
- Category: Frame Rails & Subframes
Purpose and Function in Audi Suspension
The rear axle subframe in the Audi A6 C6 acts as a load-bearing element for key suspension components, transferring loads from the wheels to the vehicle body. It is responsible for:
- Rigid connection of the rear axle to the vehicle's structure,
- Maintaining suspension geometry within specified tolerances,
- Reducing deformation during dynamic driving and when the car is fully loaded,
- Stable handling during braking, acceleration, and cornering.
Its placement at the rear of the vehicle means this component works directly with the rear axle, impacting ride comfort, traction, and predictable vehicle behavior.
Construction and Design Characteristics
The rear axle subframe is a robust, welded frame bracket specifically designed for the Audi A6 C6 platform. Its construction is optimized for:
- Fatigue resistance during prolonged use,
- Torsional rigidity of the entire rear section of the body,
- Precise positioning of control arms, shock absorber mounts, and other suspension elements.
As a component within the Longitudinal Body Frame Parts and Brackets category, the subframe is engineered to handle both vertical loads and lateral and longitudinal forces generated during everyday driving and in emergency situations.
Benefits of Using an Original Rear Axle Reinforcement
Using the factory rear axle reinforcement in an Audi offers a range of practical service and operational benefits:
- Factory Fitment – correct mounting points and geometry matching the manufacturer's design, facilitating installation and alignment.
- Structural Integrity – maintaining the original body rigidity, which translates to driving stability.
- Seamless Integration with other suspension, braking, and drivetrain components of the rear axle.
- Predictable Vehicle Behavior after repair – no need for adaptations or structural modifications.
Condition, Service Application, and Part Selection
The offered Audi rear axle subframe is a used part intended for service applications as a replacement for corroded, mechanically damaged, or deformed original components. Replacing this bracket is particularly recommended when:
- there are issues with rear axle geometry alignment after a collision,
- cracks or excessive wear of the load-bearing structure have been identified,
- it is necessary to restore the factory rigidity of the rear body section.
Before purchasing, it is advisable to compare part numbers and vehicle placement to ensure full compatibility with your specific Audi A6 C6 version.
Audi Longitudinal Body Frame Parts and Brackets – Selection and Technical Knowledge
If you are looking for other components from the Audi Longitudinal Body Frame Parts and Brackets category, please visit our dedicated subpage: Audi Longitudinal Body Frame Parts and Brackets. You will find a wide selection of structural components tailored for various Audi models.
When selecting used structural components, it is beneficial to understand the specifics of original premium parts. For example, the differences between used OEM parts and aftermarket replacements for Mercedes are discussed in the article: Used Mercedes Parts – Original Used Parts, which helps to understand why factory components are often a favorable choice for other premium brands as well.
Additional arguments for choosing original used parts are provided in the guide: 5 Reasons Why a Used OEM Part is a Better Choice Than an Aftermarket Replacement. This is a practical compendium that facilitates informed decision-making when repairing suspension and load-bearing vehicle components.
