Mercedes W204 63 AMG Engine Mount Bracket Front M156 Petrol Left N/S A2042405117

Mercedes W204 63 AMG Engine Mount Bracket Front M156 Petrol Left N/S is an original component from the Engine mounts group, designed for AMG petrol units. The precisely selected geometry of the bracket ensures stable support for the powertrain on the front left side, which translates into confident handling and the reduction of unwanted vibrations in the engine bay.

Specifications and technical data

• SKU: A2042405117
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2042405117
• Substitutable numbers: A2042405117, A 204 240 51 17
• Location on the vehicle: Front, Left
• Fuel type: Petrol
• Part type: Engine Mount
• Category: Engine Mounts

Purpose and function in the drivetrain

The engine mount bracket in the AMG version is responsible for the rigid yet controlled attachment of the power unit to the chassis on the front left side of the vehicle. In the M156 petrol engine, this component is crucial for:

• maintaining the correct position of the engine relative to the side members and suspension,
• limiting powertrain movement during rapid acceleration and braking,
• reducing the transmission of vibrations and noise into the cabin,
• maintaining the correct geometry of the exhaust and drivetrain systems.

Benefits of using an original AMG bracket

Using a dedicated bracket for the 63 AMG version allows for the preservation of the factory performance characteristics of the M156 engine. The appropriately selected stiffness and shape of the mount support:

• powertrain stability under high loads typical of AMG variants,
• proper cooperation with other components from the Engine mounts group,
• even distribution of forces in the front part of the engine bay,
• reduction of the risk of damage to adjacent components resulting from excessive engine movement. As a result, the predictable handling characteristics of the vehicle are maintained, and throttle response remains consistent with the design assumptions of the AMG version.

Vehicle placement and compatibility

The component is designed for installation in the front left part of the engine bay, in the area where the power unit is attached to the chassis. The bracket design has been developed for compatibility with the M156 petrol engine, which ensures:

• proper fitment to factory mounting points,
• compatibility with the support system and other engine mounts,
• seamless integration with original equipment components. This solution facilitates service and allows for the consistency of the entire drivetrain to be maintained without the need for structural modifications.

Characteristics of the used component

The bracket comes from a Mercedes vehicle and is a used part, which in practice means maintaining the original assembly specifications at a more favorable cost compared to new parts. For many AMG users, this is a reasonable compromise between quality and budget, especially during comprehensive work on the engine mounting system.

Selection and additional technical information

To correctly select the bracket for a specific body and engine version, it is worth using the vehicle's VIN and catalog data. This allows for verifying compatibility with a specific variant of the M156 unit and avoiding installation problems. When planning service work on the engine mounting system, it is also recommended to check other components from the same group, such as other mounts and brackets, to restore full powertrain stability in a single operation. If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as additional mounts, brackets, or vibration-damping elements, check the available parts in the Mercedes Engine mounts category.

Technical support and service knowledge

When working with Mercedes power units, including engines used in the C and E-Class, it is worth using proven sources of service knowledge. Practical tips regarding operation and equipment selection can be found in the article Reliability under the star – how to take care of engine equipment in popular Mercedes-Benz C and E-Class models?, which discusses, among other things, the importance of using appropriate components in the drivetrain. Additionally, if you want to precisely match original used components to your premium car, the guide How to select original used parts for BMW, Audi, and Mercedes using the VIN? may be helpful, explaining step-by-step how to minimize the risk of errors when selecting components.