BMW F10 F11 F20 F30 F32 Air Mass Flow Hot Film Meter 8506408

BMW F10 F11 F20 F21 F30 F31 Air Mass Meter 8506408 is a component from the Air and Fuel Intake Sensors category, designed for precise measurement of the mass of intake air in selected BMW models. A properly selected air mass meter stabilizes engine operation, supports correct fuel delivery, and reduces the risk of performance loss. A used OEM component is a sensible choice for drivers seeking a technically proven solution at an attractive price.

Specifications and technical data

• SKU: 8506408
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8506408
• Substitutable numbers: 13628506408, 8506408, 0281006092, 0 281 006 092
• Category: Air Intake & Fuel Sensors

Purpose and Role of the Air Mass Meter in BMW

The air mass meter in F10, F11, F20, F21, F30, and F31 series models is responsible for measuring the amount of air drawn into the intake system. Based on this data, the engine control unit determines the fuel dose, adjusts ignition timing, and controls auxiliary equipment. A properly functioning sensor translates to:

• stable idle speed and smooth acceleration,
• more predictable throttle response,
• reduced excessive fuel consumption,
• decreased risk of air-fuel mixture related errors.

For modern BMW engines, accurate air mass readings are crucial, which is why using an original sensor from this series helps maintain factory engine operating parameters.

Technical Characteristics and Compatibility

The offered air mass meter belongs to the group of BMW air and fuel intake sensors, designed to work with the factory engine control unit. The OEM construction ensures:

• proper fit for the stock intake housing in the mentioned BMW generations,
• correct signal characteristics for the control units used in these models,
• possibility of installation in place of the original component without wiring modifications.

It is always advisable to confirm the correct air mass meter selection based on the OEM number or interchangeable numbers for your specific engine version. If you have any doubts, the guide article: How to Select the Right Car Part by VIN and OEM Number, which describes practical verification steps, will be helpful.

Condition, Verification, and Preparation for Installation

The air mass meter is offered as a used BMW part, meaning it comes from a dismantled vehicle and has been verified for its suitability for further use. Such components are often chosen as an economical alternative to new parts, especially for daily driven cars.

Before installation, it is recommended to:

• check the condition of the electrical connector and the seal in the intake housing,
• inspect the vehicle's electrical system for any harness damage,
• perform adaptation or reset parameters in the engine control unit, if the service procedure for the specific model requires it.

This approach facilitates quick vehicle startup after replacement and reduces the risk of recurring intake system-related errors.

Benefits of Using an Original BMW Air Mass Meter

Using an original air mass meter in BMW F10, F11, F20, F21, F30, and F31 series allows for consistency with the factory intake system design. The main benefits include:

• compatibility with control unit software – no need to modify injection maps or engine operating parameters,
• repeatable, predictable air mass readings,
• lower risk of diagnostic issues compared to aftermarket parts with uncertain parameters,
• easier part identification and selection thanks to clear OEM markings and reference numbers.

If you want to better understand the relationship between the air mass meter's operation and engine fueling, the article: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, which discusses diagnostics and selection of fuel system components, will be helpful.

Other BMW Air and Fuel Intake Sensors

If you are also looking for other BMW air and fuel intake sensors for your car, check out our dedicated category: BMW Air and Fuel Intake Sensors. There you will find a wide selection of used OEM components that will allow you to comprehensively care for your car's intake and fuel system.