BMW X3 E83 E90 E91 LCI 3.0d 335d M57N2 Vacumm Box Exhaust Manifold

BMW X3 E83 E90 E91 LCI 3.0d 335d M57N2 Vacumm Box Exhaust Manifold is a vacuum control system component designed to work with the M57N2 diesel engine in BMW X3 and 3 Series LCI models. Thanks to its precise operation, the vacuum actuator ensures stable performance of vacuum-dependent components, which translates into predictable engine characteristics and correct load response. This is an OEM solution that allows you to maintain the factory operating parameters of the system.

Specifications and technical data

• SKU: 7796883
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7796883
• Substitutable numbers: 7796883, 11717796883
• Category: Vacuum Pumps

Purpose and function in the vacuum system

The vacuum actuator in the M57N2 engine is responsible for precisely transferring vacuum control to the cooperating components, which has a direct impact on the engine's refinement. A properly functioning component of this type helps maintain stable vacuum levels, reducing the risk of power loss and unstable operation under variable loads.

Selecting a component that complies with factory specifications is particularly important in modern diesel engines, where many components are controlled via the vacuum system. Using an original actuator allows you to maintain consistency with the factory control and engine management software.

Compatibility with the M57N2 engine

The presented actuator has been designed to work with the M57N2 3.0d unit, used in models such as the BMW X3 E83 and BMW 3 Series E90/E91 LCI, including high-output versions like the 335d. Proper matching in terms of operating characteristics and mounting geometry facilitates installation and helps avoid compatibility issues.

The component belongs to the Vacuum pumps group, which means it is integrally linked to the vehicle's vacuum generation and distribution system. This ensures structural consistency of the entire system, minimizing the risk of leaks or incorrect control.

Product characteristics and advantages

As an OEM part, the vacuum actuator is designed for specific BMW models, which translates into:

• factory fit for the vacuum system in the M57N2 engine,
• appropriate operating characteristics in typical load ranges,
• consistency with other vacuum-controlled components.

Maintaining a functional component of this type helps reduce typical symptoms of vacuum system wear, such as delayed throttle response or unstable engine behavior during dynamic driving. Replacing it with a correctly selected part allows you to restore engine predictability and improve overall vehicle comfort.

Condition, origin, and installation aspects

The offered vacuum actuator is a BMW aftermarket part, sourced from dismantling. This type of component is a popular choice as an economical solution while maintaining compliance with factory specifications. Before installation, it is recommended to perform a standard vacuum system leak test and verify the component's operation in conjunction with the vacuum pump and vacuum lines.

To facilitate identification, manufacturer markings and catalog numbers have been used, which allow the part to be matched to a specific vehicle configuration. In case of doubt, it is worth comparing the shape, mounting points, and connections with the part currently installed in the car.

Selection by part numbers and technical support

When selecting vacuum system components and other engine parts, verifying them against catalog numbers and manufacturer markings is helpful. To better understand the relationships between engine power and control components, it is worth reading the guide on diagnostics and selection of fuel system components: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as pump housings, control elements, or additional vacuum modules, check the available parts in the BMW Vacuum pumps category.

Additional tips on selecting parts by OEM numbers and verifying component compatibility can be found in our practical shopping guide: online parts shopping without risk – verifying compatibility by OEM numbers.