Mercedes SLC 43 R172 AMG M276 Exhaust Flap Actuator Right Left N/O/S A1909064500

Mercedes SLC 43 R172 AMG M276 Exhaust Flap Actuator Right Left is a specialized exhaust system component designed for precise control of the exhaust flaps in the AMG sports version. Thanks to its factory design for the M276 engine, it ensures consistent operation with the vehicle's electronics and correct exhaust performance characteristics. This used component allows for a technically sound repair without the need for a costly replacement of the entire system.

Specifications and technical data

• SKU: A1909064500
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1909064500
• Substitutable numbers: A1909064500, A 190 906 45 00
• Location on the vehicle: Right, Left
• Category: Other Exhaust & Emission Parts

Purpose and function in the exhaust system

The exhaust flap actuator in the Mercedes SLC 43 R172 AMG M276 model is responsible for controlling the position of the flaps in the mufflers, which affects exhaust flow, acoustics, and engine performance characteristics. This component works with the vehicle's control system, allowing the exhaust operating mode to be changed depending on the load and the selected driving program.

The presented actuator is intended for installation on the right and left side of the exhaust system, which allows for maintaining the symmetrical operation of both exhaust lines. A properly functioning module restores factory exhaust flow parameters and stabilizes flap operation, eliminating errors related to their incorrect positioning.

Construction and installation compatibility

The offered element is an original Mercedes component, designed specifically for the AMG version with the M276 unit. The actuator's construction is adapted to the factory mounts and the geometry of the exhaust system, which facilitates installation in the location provided by the vehicle manufacturer.

Placement on the vehicle covers both sides of the system, which is important when planning a repair or replacing a pair of actuators. This allows for maintaining consistency in flap operation on the right and left sides, which is significant for both acoustics and even loading of the exhaust system.

Benefits of using an original actuator

Using a dedicated exhaust flap actuator in the Mercedes SLC 43 R172 AMG M276 brings a number of practical technical benefits:

• maintaining the factory exhaust sound characteristics in comfort and sport modes,
• proper cooperation with the engine control system and vehicle systems,
• stable flap positioning on the right and left side,
• reducing the risk of diagnostic errors related to flap operation.

The used component allows for an economical repair while maintaining the original design specification, which is particularly important in sports-oriented cars such as the SLC 43 AMG.

Condition and service application

The component is offered as used, which allows for the optimization of repair costs while maintaining compliance with factory technical solutions. This type of element is often chosen in situations where mechanical wear or failure of the exhaust flap drive occurs, and the vehicle owner wants to restore the proper operation of the system without interfering with its design.

Thanks to the preservation of the original geometry and mounting points, the actuator can be integrated into the existing system without the need for installation modifications, which shortens service time and facilitates the diagnosis of potential future faults.

System expansion and related components

If you are planning a comprehensive repair or upgrade of the exhaust system area in your Mercedes and need other components from the same group, such as additional actuators, mounts, or mounting accessories, check the available parts in the Other Mercedes category.

For a comparison of solutions used in sports versions of other brands and a better understanding of the differences in engine, brake, and chassis construction, it is worth reading an article describing RS models – you can find details in the material Audi RS vs other models – what is hidden under the hood and chassis?, which discusses the manufacturers' approach to designing dynamic car versions.