Audi A6 C7 A7 4G Automatic Gearbox Rear Mount Bearing Bracket Support 4G0399153T

Audi A6 C7 A7 4G Automatic Gearbox Rear Mount Bearing Bracket Support is a component from the Gearbox and drivetrain mounts group, designed for use with automatic transmissions in Audi vehicles. It is responsible for providing stable support for the transmission, reducing vibrations, and properly transferring loads from the drivetrain to the chassis, which results in smoother drivetrain operation and increased driving comfort.

Specifications and technical data

• SKU: 4G0399153T
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0399153T
• Substitutable numbers: 4G0399153T, 4G0 399 153 T
• Gearbox type: Automatic
• Category: Transmission & Drivetrain Mounts

Purpose and function in the drivetrain

The gearbox mount, cushion, and support in Audi A6 C7 and A7 4G models play a key role in maintaining the correct geometry of the drivetrain. This component stabilizes the automatic transmission relative to the chassis, limits unwanted movement of the drivetrain during acceleration, engine braking, and gear changes, and supports the operation of other engine and drivetrain mounts.

Thanks to its appropriately selected stiffness and design, the support helps reduce the transmission of vibrations to the cabin, which improves the perceived refinement of the drivetrain and protects other components – including half-shafts, joints, and automatic transmission control elements.

Benefits of using an original support in an Audi

Using a dedicated gearbox mount and cushion in an Audi A6 C7 / A7 4G ensures:

• proper support and guidance of the automatic transmission according to the manufacturer's specifications,
• better drivetrain stability during dynamic driving,
• reduction of knocking and vibrations resulting from excessive mounting play,
• lower loads on other drivetrain components.

For the user, this means more predictable vehicle behavior, smoother gear changes, and a lower risk of premature wear of adjacent components.

Characteristics of the used component

The offered gearbox mount, cushion, and support is a used part, sourced from the dismantling of an Audi vehicle. Such components, when properly selected and verified for condition, represent a technically and economically sound choice for repairing or restoring the factory operating characteristics of the drivetrain.

In practice, installing a verified used component allows for restoring proper support for the automatic transmission without the need to invest in a new component, while maintaining structural compatibility with the original mounting system.

Selection by markings and transmission type

Due to the specifics of the Audi A6 C7 and A7 4G models and various drivetrain variants, when selecting a gearbox mount and cushion, it is crucial to pay attention to:

• compatibility with the transmission type – in this case, dedicated to an automatic transmission,
• manufacturer markings and reference numbers,
• membership in the Gearbox and drivetrain mounts group for the specific body generation.

In case of doubt, it is worth comparing the shape and mounting points with the currently installed element or using selection by factory markings.

Technical support and additional information

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Audi and need other elements from the same group, such as additional mounts, cushions, or transmission brackets, check the available parts in the Audi gearbox and drivetrain mounts category.

When deciding to use dismantled components within the drivetrain, including mounts that work with an automatic transmission, an expert guide describing the facts and myths about used components will be helpful – you can find it in the article Why it is worth buying used gearboxes and engines – facts instead of myths.