BMW X1 E60 E60N M5 E61N E63 E64 M6 E84 E90N Mass Air Flow Sensor 1438814

BMW X1 E60 E60N M5 E61N E63 E64 M6 E84 E90N Mass Air Flow Sensor is an original component from the Air and fuel intake sensors group, designed for precise measurement of the air intake volume in the engine. A properly functioning mass air flow sensor supports stable engine operation, correct fuel metering, and smooth performance at idle and under load.

Specifications and technical data

• SKU: 1438814-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1438814
• Substitutable numbers: 11721438814, 1438814, 11727838504, 7838504
• Part type: Sensor
• Category: Air Intake & Fuel Sensors

Purpose and function of the BMW mass air flow sensor

The presented mass air flow sensor is an intake system component that transmits information about the amount of air drawn into the engine to the engine control unit (ECU). Based on this data, the ECU selects the appropriate fuel dose, which affects:

• stable idle speed,
• smooth acceleration without jerking,
• efficient throttle response,
• maintenance of the optimal air-fuel mixture ratio.

For the BMW models for which this sensor is intended, a correct air flow reading is crucial both for driving dynamics and for protecting the engine from operating under unfavorable mixture conditions.

Advantages of using an original BMW sensor

The original BMW mass air flow sensor is designed for the specific characteristics of engines used in the X1, E60, E60N, M5, E61N, E63, E64, M6, E84, and E90N series. As a result, it provides:

• accurate reproduction of factory parameters – the engine control unit receives a signal consistent with the maps stored in the ECU software,
• consistency with the factory intake system – without the need for modifications or mechanical adaptations,
• stable operation across a wide range of loads and operating temperatures.

Unlike universal replacements, the original component from this group is tailored to the specific requirements of BMW engines, which reduces the risk of diagnostic errors and adaptation issues.

Performance characteristics and installation

The mass air flow sensor in this offer comes from the BMW OE segment, which means it complies with factory manufacturing and performance standards. The component is designed for installation in the intake duct, in place of the factory sensor, while maintaining the original mounting method and electrical connection.

The condition described as used means that the sensor has been previously operated but retains functionality that allows for further use after installation in the vehicle. This type of solution is often chosen as an economical alternative to new parts, while maintaining compliance with factory parameters.

Selection by part numbers and compatibility

The selection of a mass air flow sensor in BMW vehicles should be based on the OEM part number and interchangeable numbers, as well as vehicle data (model, year, engine version). Proper matching ensures correct cooperation with the engine electronics and eliminates the risk of errors appearing in the control unit.

To better understand how to safely use used electronics and measuring components in a car, it is worth reading the Global Parts guide: Used car electronics – ECU modules and second-hand sensors. The article discusses, among other things, selection by OEM numbers, compatibility issues, and practical installation tips.

Expanding the BMW intake system

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, measuring elements, or components related to mixture control, check the available parts in the BMW air and fuel intake sensors category.

Choosing components from one consistent product group facilitates diagnostics, service, and subsequent vehicle operation, and also allows for maintaining predictable engine behavior under various operating conditions.