Audi RS4 B9 RS5 F5 Engine Mount Bracket Support Left N/S 2.9 TFSI 4M0199307BG

Audi RS4 B9 RS5 F5 Engine Mount Bracket Support Left N/S 2.9 TFSI is an original component from the Engine mounts group, designed for precise support of the powertrain on the left side of the vehicle. The structure has been engineered by the manufacturer to ensure stable load distribution in Audi vehicles, which translates into smoother engine operation and a better driving experience. This used OEM component is a sensible choice for drivers looking for a proven solution with factory-fit quality.

Specifications and technical data

• SKU: 4M0199307BG
• Mark: Audi
• Condition: Used
• OEM Part Number: 4M0199307BG
• Substitutable numbers: 4M0199307BG, 4M0 199 307 BG
• Location on the vehicle: Left
• Fuel type: Diesel
• Category: Engine Mounts

Purpose and function in the powertrain system

The presented engine mount bracket is responsible for a stable connection between the powertrain and the chassis on the left side of the vehicle. In Audi vehicles with a diesel engine, its task is to:

• dampen vibrations transmitted from the engine to the body,
• maintain the correct geometry of the powertrain,
• limit unwanted engine movement during acceleration and braking,
• work in conjunction with other engine mounts to improve ride comfort.

As a result, the powertrain operates more stably, and associated components – such as hoses, connectors, or accessories – are less exposed to excessive mechanical stress.

Benefits of using an original bracket

Using an original bracket from the Engine mounts group in an Audi provides a number of practical advantages in daily operation:

• Factory fit – the component was designed specifically for the Audi body structure and powertrain, which facilitates installation and minimizes the risk of mismatch.
• Stable engine operation – proper support on the left side limits engine rocking and improves refinement, especially in diesel engines.
• Protection of other components – a properly functioning mount reduces the load transmitted to the gearbox, drive shafts, and powertrain suspension elements.
• Economical repair – a used OEM component allows for restoring proper system operation at a lower cost than a new part.

Installation and operational characteristics

The bracket is designed to work on the left side of the vehicle, in the immediate vicinity of the powertrain. Its design allows for secure attachment to the chassis and cooperation with other engine support elements. When replacing, it is worth paying attention to:

• checking the condition of the remaining engine mounts,
• proper tightening of bolts in accordance with the vehicle manufacturer's recommendations,
• verifying that there are no excessive vibrations or knocking when changing loads after installation.

Selecting a part compatible with the vehicle's fuel type is important for maintaining the appropriate stiffness and damping characteristics, which is particularly significant in diesel units with higher torque.

Use in service, repairs, and tuning

Replacing the engine mount bracket is recommended when symptoms such as noticeable vibrations on the body, knocking when starting or shifting gears, or visible damage to rubber-metal elements occur. It is also a good time to prepare the car for further mechanical modifications during service. If you want to better understand how to use used components to improve your car's performance, check out our guide How to increase engine power: a practical guide to engine tuning with used parts, which describes a safe approach to powertrain modifications step by step.

Expanding work within the Audi engine mounting system

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