Audi A6 C7 A7 4G Gearbox Transmission Support Mount S-Tronic 4G0399115P

The Audi A6 C7 / A7 4G S‑Tronic Gearbox and Drive Mount is an original structural component designed for automatic transmission systems in gasoline engine vehicles. It provides stable support for the drivetrain, limits unwanted vibrations, and supports the proper functioning of the S‑Tronic gearbox. Thanks to its factory geometry and precise fit for the specific platform, the component perfectly integrates with the original body mounting points, facilitating servicing and maintaining the correct drivetrain performance characteristics.

Specifications and technical data

• SKU: 4G0399115P
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0399115P
• Substitutable numbers: 4G0399115P, 4G0 399 115 P
• Fuel type: Petrol
• Gearbox type: Automatic
• Part type: Transmission Mount
• Category: Transmission & Drivetrain Mounts

Purpose and Function in the Drivetrain System

The gearbox and drive mount in Audi A6 C7 and A7 4G models with S‑Tronic transmission is responsible for securely holding the automatic gearbox in relation to the vehicle body. A correctly selected component of this type:

• reduces the transfer of vibrations from the drivetrain to the cabin,
• supports the precise operation of the automatic gearbox,
• lessens the loads acting on other drivetrain components,
• helps maintain the correct engine-gearbox geometry in gasoline engine vehicles.

This results in more predictable vehicle behavior for the driver, and the S‑Tronic gearbox operates under conditions consistent with the manufacturer's design.

Compatibility with Gasoline Systems and Automatic Transmissions

The presented mount is designed to work with gasoline engines and automatic transmissions on the Audi A6 C7 / A7 4G platform. This means its geometry, stiffness, and operating characteristics are tailored to the loads generated by this specific type of drivetrain, including the specifics of the S‑Tronic dual-clutch transmission.

Selecting the correct mount is particularly important for:

• replacing a worn or damaged component after a failure,
• drivetrain repairs following a collision,
• eliminating excessive vibrations and knocking that occur during gear changes.

Characteristics of a Used Component

The offered mount is a salvaged part, classified as a used part. Components of this type are often chosen by professional workshops and discerning users because they:

• retain the original construction and fit for the specific Audi model,
• allow for cost optimization of drivetrain repairs,
• offer a sensible compromise between price and quality compared to new aftermarket alternatives.

Prior to installation, a standard inspection of the component's condition by a mechanic is recommended – particularly regarding any mechanical damage and wear of the damping material.

Technical Support and Part Selection

For components like gearbox and drive mounts, precise matching to the specific body version, drivetrain type, and gearbox is crucial. It is important to ensure compatibility with the gasoline system and automatic transmission to avoid installation issues and improper drivetrain operation.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Audi and require other parts from the same group, such as additional brackets, bushings, or gearbox support elements, check the available parts in the Audi Gearbox and Drive Mounts category.

For drivers considering various servicing strategies – including the choice between refurbishment and purchasing a used part – practical advice can be found in the article Used Gearbox – When is it Worth It and What You Need to Know, which discusses, among other things, the specifics of automatic transmissions and compatibility issues.