Audi A4 B9 Rear Axle Subframe Cradle Suspension is a structural component from the category of longitudinal body frame parts and brackets, designed for the rear of the vehicle. It is responsible for the stable mounting of suspension components, load transfer, and maintaining the correct geometry of the rear axle in Audi vehicles.
Specifications and technical data
- SKU: 8W0505235AN
- Mark: Audi
- Condition: Used
- OEM Part Number: 8W0505235AN
- Substitutable numbers: 8W0505235AN, 8W0 505 235 AN
- Location on the vehicle: Rear
- Category: Frame Rails & Subframes
Function and Role in Rear Axle Suspension
The rear axle cradle/subframe plays a crucial role as a load-bearing bracket for suspension elements. The structure of the rear part of the drivetrain rests on it, which directly impacts:
- maintaining predictable vehicle behavior during acceleration, braking, and driving over uneven surfaces,
- stable guidance of the rear axle at high speeds and in corners,
- correct transfer of forces from the control arms, shock absorbers, and other suspension components to the body.
A well-chosen rear axle suspension subframe helps reduce unwanted vibrations, improves ride comfort, and supports even tire wear.
Construction and Fit for Audi
The presented component belongs to the group of longitudinal body frame parts and brackets, specifically designed for Audi's structural requirements. The cradle's geometry is adapted to the factory mounting points, enabling:
- precise fit with the body without the need for modifications,
- correct positioning of suspension mounting points, essential for subsequent wheel alignment,
- maintaining the structural rigidity of the rear part of the vehicle.
Its placement on the vehicle, designated as the rear, means the cradle operates in the most heavily loaded zone of the rear axle, where resistance to lateral and longitudinal forces, as well as stability under variable load of the trunk and rear cabin, is crucial.
Benefits of Using an Original Bracket
Choosing an original Audi solution from the category of longitudinal body frame parts and brackets ensures a range of practical advantages:
- maintaining factory handling characteristics – the car responds to steering inputs as intended by the manufacturer,
- proper cooperation with the stock suspension and components of the braking and drivetrain systems,
- easier diagnostics and service – the mechanic works with a familiar, factory design, reducing assembly and adjustment time,
- structural integrity of the body – the bracket is part of the passive safety system, influencing load transfer.
This solution is particularly recommended for post-accident repairs, suspension refurbishment, or restoring the vehicle to a near-factory condition.
Condition, Origin, and Practical Application
The offered Audi rear axle cradle is a used part from disassembly, allowing for a reasonable cost while preserving the original construction. This type of component is often chosen in situations where:
- mechanical damage has occurred due to a collision or impact with an obstacle,
- there are problems with rear axle geometry that cannot be corrected by adjustment alone,
- a corroded or deformed bracket needs replacement to restore structural rigidity.
Before installation, a standard inspection of the mounting surfaces and a geometry check on a professional stand are recommended to fully utilize the component's potential and ensure correct suspension alignment.
Related Categories and Technical Knowledge
If you are looking for other elements from the Audi Longitudinal Body Frame Parts and Brackets category, check out our dedicated offer: Audi longitudinal body frame parts and brackets. There you will find a wide selection of structural components tailored for various models of this brand.
Are you also interested in the topic of electronics and control modules in modern premium cars? See the article on our blog, where we describe how to use used parts for servicing multimedia systems and controllers in BMW: how to care for iDrive systems and electronic modules in BMW 3 and 5 series using used parts. This is a practical dose of knowledge that helps you consciously plan car repairs and upgrades.
