BMW E60 E81 E87 E90 Petrol N43 Intake Inlet Manifold Actuator 7546982

BMW E60 E81 E87 E90 Petrol N43 Intake Inlet Manifold Actuator is an original intake system component designed for BMW 1 and 3 series petrol engines. As part of the Intake Manifolds group, it is responsible for the precise control of manifold flaps, which affects the engine's refinement and performance stability. This used OEM component is a sensible choice for professional repairs or restoring the engine to its factory operating parameters.

Specifications and technical data

• SKU: 7546982
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7546982
• Substitutable numbers: 7546982, 11617546982
• Fuel type: Petrol
• Category: Intake Manifolds

Purpose and function in the intake system

The intake manifold actuator in BMW E87 LCI and E90 models works with the intake manifold by controlling the position of the flaps depending on the engine load and speed. A properly functioning component:

• stabilizes airflow in the intake manifold,
• supports uniform cylinder filling,
• reduces torque drops in the low and mid-RPM ranges,
• helps maintain correct throttle response and the refinement of the petrol engine.

As a result, the intake system maintains parameters close to factory specifications, and the engine runs in a predictable and consistent manner.

Benefits of using an original actuator

Using an original intake manifold actuator in a BMW provides a number of practical service and operational benefits:

• Factory geometry and mounting points – facilitate installation in place of a worn-out part without the need for modifications.
• Proper cooperation with engine control electronics – maintained compatibility with the factory ECU software.
• Reduction of the risk of diagnostic errors related to the operation of the intake manifold flaps.
• Possibility of restoring the proper operation of the intake system after a failure or seizure of the flap mechanism.

For petrol engines, maintaining stable airflow is particularly important, which is why a functional intake manifold actuator has a direct impact on driving comfort and performance consistency.

Application in BMW petrol engines

The presented actuator is intended for petrol fuel systems, which means its operating characteristics are adapted to the specifics of spark ignition and the requirements of the engine control unit in this configuration. In practice, this translates into:

• smoother transitions between different RPM ranges,
• better response to load changes,
• more predictable engine behavior in daily use.

For workshops specializing in the BMW brand, this is a component that allows for a technically correct repair of the intake system without compromising on fitment.

Condition and service application

The offered actuator comes from a group of used parts, which allows for an economical repair while maintaining the original BMW design. This type of component is particularly useful in situations where:

• mechanical damage or seizure of the flap mechanism in the intake manifold has occurred,
• ECU errors related to the manifold flap position are present,
• it is necessary to replace the element as part of comprehensive intake system maintenance.

The selection of the correct actuator should always be confirmed based on vehicle data and information from service documentation to ensure full compatibility with the specific engine version.

Related items from the BMW Intake Manifolds category

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as manifold housings, control flaps, or additional mounting elements, check out the available parts in the BMW Intake Manifolds category.

More knowledge about intake and exhaust systems

When working with the intake system, it is also worth understanding the relationships between the intake and exhaust, especially in the context of exhaust gas and airflow in petrol engines. If you want to expand your knowledge on the selection and operation of elements such as manifolds or exhaust system components in premium cars, take a look at the article Performance exhaust system: used manifolds and sports catalytic converters on the road, where you will find practical tips and examples of applications.