Air Intake Unit BMW F20 F21 LCI F30 Mini F56 Temperature Sensor Diesel 8511339

Visual condition of the part 

The product shows signs of use visible in the photos. 

Air Intake Unit BMW F20 F21 LCI F30 Mini F56 Temperature Sensor Diesel is a component from the Air and fuel intake sensors group, designed for diesel engine supply systems. It ensures precise measurement of the airflow in Diesel engines, which translates into stable engine operation and correct fuel dosing.

Specifications and technical data

• SKU: 8511339
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8511339
• Substitutable numbers: 11618511339, 8511339
• Fuel type: Diesel
• Category: Air Intake & Fuel Sensors

Purpose and function in the intake system

The airflow meter with the air pipe in this model is responsible for controlling the amount of air sucked into the engine, which is crucial for the proper operation of the injection system in Diesel units. A properly functioning element of this type supports:

• stable idle speed,
• correct response to the accelerator pedal,
• optimal combustion of the fuel-air mixture,
• maintenance of appropriate exhaust emission parameters.

In BMW and Mini vehicles, the use of a dedicated airflow meter with an air pipe reduces the risk of engine control unit errors and problems with limp mode.

Compatibility with BMW F20 LCI, F30 and Mini F56

The offered element has been designed for BMW F-series platforms and selected Mini models, thanks to which it maintains the factory geometry and mounting method. Proper fitment to the intake system facilitates installation and allows for maintaining the original air flow path, which is important for the operation of the mass airflow sensor.

In the case of diesel engines, the tightness and appropriate cross-section of the air pipe are particularly important – this affects the correct readings of the airflow meter and cooperation with the turbocharger and the exhaust gas recirculation system.

Technical characteristics and advantages of use

The airflow meter integrated with the air pipe in this solution is a practical combination of a measuring element with a section of the intake duct. Such a design limits the number of connections, which reduces the risk of leaks and measurement interference. The main benefits include:

• maintaining the factory engine operating characteristics,
• proper cooperation with the engine control electronics,
• appropriate air preparation for further stages in the intake system,
• the possibility of restoring correct operating parameters after failure or wear of the previous element.

For Diesel engines, precise measurement of air mass is particularly important from the point of view of injection dose, turbocharging system operation, and filters and exhaust gas cleaning systems.

Condition, origin and practical application

The offered element comes from the BMW product line and is part of a group of original solutions used in vehicles of this brand and in Mini models based on a common platform. As a used component, it is an economical alternative to new parts, allowing for the restoration of the intake system's efficiency while maintaining the factory design.

Before installation, it is recommended to verify compatibility with the specific engine version and compare the shape of the pipe and electrical connectors with the element currently installed in the vehicle. A properly selected airflow meter with an air pipe helps to eliminate typical symptoms of damage, such as power loss, increased fuel consumption, or appearing errors related to air mass measurement.

Intake system expansion and additional materials

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional sensors, intake pipes, or measuring elements, check the available parts in the BMW Air and fuel intake sensors category.

When choosing used electronic and measuring elements, it is worth following proven tips – practical advice on choosing such components can be found in the article Second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, which helps to assess the cost-effectiveness and safety of using used electronics in a car.