BMW F20 F21 F30 F31 F32 X5 F15 N20 N55 Exhaust Valve Actuator Flap Drive 7620322

BMW F20 F21 F30 F31 F32 X5 F15 N20 N55 Exhaust Valve Actuator Flap Drive is an original BMW component, designed for precise integration with the engine control system in popular F-series and X5 models. As a component from the Lambda sensors and O2 sensors category, it is responsible for accurate throttle positioning and stable operation of the power unit under various load conditions.

Specifications and technical data

• SKU: 7620322
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7620322
• Substitutable numbers: 7620322, 18307620322, 8632154, 18308632154, 8626612, 18308626612
• Category: Oxygen Sensors

Purpose and function in the engine control system

The throttle actuator / flap drive in N20 and N55 engines plays a key role in regulating the amount of air supplied to the cylinders, working in conjunction with the control electronics and oxygen sensors from the Lambda sensors and O2 sensors group. A properly functioning component of this type contributes to:

• stable idle speed,
• smooth acceleration without jerking,
• maintaining the correct air-fuel mixture,
• efficient operation of the exhaust gas treatment system.

Thanks to its factory OEM design, the actuator is optimized for compatibility with the factory engine control unit, which translates into predictable power unit behavior across the entire rev range.

Advantages of using an original BMW actuator

Using an original throttle actuator in BMW F20, F21, F30, F32, and X5 F15 models with N20 and N55 engines provides a number of practical operational benefits:

• Full integration with the factory ECU – no need to adapt non-factory solutions, predictable communication with sensors and probes.
• Proper throttle operating characteristics – maintaining the factory throttle response.
• Consistency with the emission control system – correct cooperation with lambda sensors and O2 sensors, which facilitates compliance with emission standards.
• Reduced risk of diagnostic errors – lower susceptibility to random error codes associated with incompatible components.

Condition, origin, and installation aspects

The offered throttle actuator is a used part, sourced from a dismantled BMW vehicle. Such components are a popular choice as an economical alternative to new parts, while maintaining the original design and fitment for specific generations of N20 and N55 engines.

Due to its factory origin, installing the actuator in place of a worn-out part is similar to a plug-and-play solution, retaining original mounting points and electrical connectors. After installation, it is recommended to perform adaptation procedures in accordance with the vehicle manufacturer's guidelines and verify operating parameters via diagnostics.

Selection by part numbers and electronic compatibility

When selecting a throttle actuator for a specific BMW vehicle, it is crucial to pay attention to the OEM part number and available interchangeable numbers, as well as compatibility with the engine version and vehicle year. Proper matching guarantees correct cooperation with the engine control module and other system elements, such as lambda sensors and O2 sensors.

To better understand the principles of selecting used electronics and components that work with the ECU, it is worth checking out the guide describing selection by VIN/OEM, hardware and software compatibility issues, and practical installation examples: Used automotive electronics – a guide to ECU modules and second-hand sensors.

Expansion of the measurement and control system in BMW

If you are planning a comprehensive repair or upgrade of the mixture control and exhaust emission area in your BMW and need other elements from the same group, such as additional oxygen sensors, control probes, or diagnostic probes, check out the available parts in the BMW Lambda sensors and O2 sensors category.