Audi A6 C6 S6 4F Gearbox Support Mount Carrier Frame Automatic 4F0399115BR

Audi A6 C6 S6 4F Gearbox Support Mount Carrier Frame Automatic is a precision component from the Gearbox and Drivetrain Mounts category, designed specifically for Audi A6 C6 and S6 series models. It is responsible for providing stable support for the automatic transmission, reducing vibrations, and ensuring proper load transfer to the chassis, which results in smoother drivetrain operation and improved driving comfort.

Specifications and technical data

• SKU: 4F0399115BR
• Mark: Audi
• Condition: Used
• OEM Part Number: 4F0399115BR
• Substitutable numbers: 4F0399115BR, 4F0 399 115 BR
• Gearbox type: Automatic
• Category: Transmission & Drivetrain Mounts

Purpose and function in the drivetrain

The presented support is a structural component responsible for the stable mounting of the automatic transmission in the Audi A6 C6 and S6 4F generation. Its task is to maintain the correct geometry of the drivetrain so that forces from the engine and transmission are safely transferred to the chassis without excessive stress or unwanted displacement.

A correctly selected and installed support:

• reduces the transmission of gearbox vibrations to the body,
• supports smooth operation of the automatic transmission during gear changes,
• reduces the risk of damage to other gearbox and drivetrain mounting components,
• helps maintain the correct alignment of half-shafts and other drivetrain components.

Technical characteristics and fitment

The support belongs to the Gearbox and Drivetrain Mounts group, meaning it has been designed to work with the factory Audi support system. The construction is adapted for use with an automatic transmission, ensuring compatibility with factory mounting points and the strength requirements for this drivetrain version.

As a component sourced from dismantling, the support ensures:

• factory fitment for dedicated Audi models,
• preservation of the original drivetrain geometry,
• possibility of installation in place of a worn or damaged part without structural modifications.

Benefits of using an original used support

Using an original, used support instead of a worn component is a solution that combines technical installation accuracy with reasonable service costs. Unlike aftermarket replacements with uncertain specifications, a part sourced from Audi retains factory stiffness and shape parameters, which is crucial for the durability of the entire drivetrain.

The main advantages of this solution include:

• secure fitment with other gearbox mounting components,
• preservation of the drivetrain operating characteristics intended by the manufacturer,
• reduced risk of improper loading of engine and gearbox mounts,
• more predictable vehicle behavior during acceleration, engine braking, and gear changes.

Component condition and installation aspects

The offered support is a used part, sourced from the dismantling of an Audi vehicle. Such structural components, when properly maintained, retain their properties for a long time, which is why their reuse is a frequently practiced and technically justified service solution.

When planning a replacement, it is worth paying attention to:

• checking the condition of other gearbox and drivetrain mounting components,
• proper tightening of bolts in accordance with the vehicle manufacturer's recommendations,
• checking the drivetrain alignment after installation to avoid stress on half-shafts and joints.

Service expansion and related components

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Audi and need other components from the same group, such as additional supports, mounts, or fastening elements, check the available parts in the Audi Gearbox and Drivetrain Mounts category.

When diagnosing transmission problems, it is also worth expanding your knowledge about typical symptoms and repair costs – the article on our blog may be helpful: Manual transmission failures in cars – why is an original used part a more sensible choice than regeneration?, which discusses the practical aspects of choosing original dismantled components in the context of economy and durability.