Mercedes W204 W212 Turbocharger Vacuum Pressure Can Box Diesel OM651 6510904580

Mercedes W204 W212 Turbocharger Vacuum Pressure Can Box Diesel OM651 is a boost control system component for diesel engines, responsible for precise vacuum management in the turbocharger. Thanks to its factory design intended for OM651 units, it ensures stable turbine operation and proper response to load. This used part from the original Mercedes production line is a solution that allows for technically correct repair without interfering with the factory engine performance characteristics.

Specifications and technical data

• SKU: A6510904580-11
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510904580
• Substitutable numbers: A6510904580, A 651 090 45 80, A6510902880, A 651 090 28 80, KZ
• Fuel type: Diesel
• Part type: Turbocharger Actuator
• Category: Turbos & Parts

Function of the vacuum pressure can in the OM651 diesel engine

The vacuum pressure can in a diesel engine is responsible for controlling boost system components, such as the turbine actuator or control flaps. In OM651 units, the use of a dedicated vacuum actuator allows for:

• maintaining proper boost pressure throughout the entire RPM range,
• smooth transitions between different turbine operating modes,
• reducing power drops resulting from improper vacuum control,
• stable operation of the power unit in both urban and highway conditions.

In a Diesel engine, precise vacuum control has a direct impact on refinement, dynamics, and exhaust emission levels, which is why using the correct vacuum pressure can is crucial when repairing the boost system.

Application in Mercedes W204 and W212 models

The presented vacuum pressure can has been designed for Mercedes mid-size vehicles equipped with OM651 family engines. The component's design is adapted to the engine bay architecture of the W204 and W212 models, which facilitates installation in the factory location and maintains original vacuum line routing.

Thanks to this solution, it is possible to restore the proper operation of the turbocharger control system without the need for adaptations or modifications to the installation. This is particularly important in vehicles used daily, where parameter repeatability and predictable power unit behavior are essential.

Technical category: Turbochargers and parts

The item belongs to the Turbochargers and parts group, i.e., components directly related to the boost system. Replacing the vacuum pressure can is often performed in parallel with the diagnostics of the turbine, vacuum lines, and control valves to restore the full efficiency of the entire system.

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 control actuators, vacuum valves, or turbocharger mounting accessories, check the available parts in the Mercedes Turbochargers and parts category.

Characteristics of the used OEM component

The offered vacuum pressure can is an original component from a Mercedes vehicle, which means it retains factory geometry, mounting points, and the operating characteristics of the diaphragm and control mechanism. A used element of this type is often chosen as an alternative to aftermarket replacements when compliance with factory turbocharger control parameters is the priority.

In practice, this translates into:

• easier boost system diagnostics after installation,
• no need for bracket or line modifications,
• retention of the original vacuum response characteristics.

Selecting the vacuum pressure can for a specific vehicle

When selecting a vacuum pressure can for a Mercedes with an OM651 engine, it is crucial to match it to the engine version and equipment configuration. Verifying compatibility via the VIN allows you to avoid problems with installation and boost system operation. If you want to learn how to effectively select original used components for premium brand cars, it is worth reading the guide on how to select original used parts for BMW, Audi, and Mercedes using the VIN.

Technical support and additional knowledge

The boost system in modern diesel engines is closely linked to control electronics, brakes, and suspension, especially in high-performance cars. For a better understanding of how manufacturers differentiate engine equipment, turbochargers, and associated components in sports versions, you can refer to the article Audi RS vs other models – what is hidden under the hood and chassis?, which shows how changes in equipment affect the operating characteristics of the entire drivetrain.