BMW E82 E88 Diesel N47 1 Air Mass Meter Intake Guide Suction Duct Hood 7811907

BMW E82/E88 Diesel N47 Air Flow Meter Intake Hose is an original intake system component responsible for stably guiding air to the air flow meter and further into the intake manifold. Thanks to its precisely selected geometry, it ensures correct air mass measurement, which translates to smooth engine operation and the correct fuel dose in the diesel engine. This is a practical service solution for BMW 1 Series owners who want to restore the factory parameters of the intake system.

Specifications and technical data

• SKU: 7811907-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7811907
• Substitutable numbers: 13717811907, 7811907, EM
• Fuel type: Diesel
• Category: Other Engine Parts

Function and Role in the Intake System

The intake hose cooperating with the air flow meter in the N47 diesel engine is responsible for directing the air drawn in by the filter in a directional, as laminar as possible manner. The appropriately shaped intake channel reduces turbulence, allowing the mass air flow sensor to achieve a stable and repeatable reading. In practice, this affects:

• correct fuel dosing by the engine control unit,
• efficient operation of the injection system in the diesel unit,
• maintenance of the correct mixture composition across the entire load range,
• reduction of diagnostic errors related to air flow.

In diesel engines, such as the N47, correct air mass measurement is crucial for the smoothness of operation, dynamics, and exhaust emissions, which is why an efficient intake hose is an important element of the entire system.

Compatibility with BMW E82 and E88 Diesel N47 Engines

The described hose has been designed to work with the N47 engine in the BMW 1 Series E82 (Coupé) and E88 (Cabrio) body styles. This means that its shape, connection diameters, and mounting points are adapted to the factory layout of components in the engine bay of these models. This ensures a tidy installation without the need for modifications to other components.

The part is intended for systems powered by Diesel fuel, which is important due to the specific nature of diesel engines – higher boost pressures, different flow characteristics, and greater sensitivity to intake leaks.

Component Characteristics and Service Application

The air flow meter intake hose in this application performs several important operational functions:

• ensures a sealed connection between the air filter housing, the air flow meter, and the further part of the intake system,
• stabilizes the position of the air flow meter relative to the airflow,
• reduces the impact of engine vibrations on the mass air flow sensor,
• helps maintain the correct flow direction under varying loads and engine speeds.

Replacing the hose is recommended in situations where leaks, cracks, deformations, or signs of improper installation occur, which can disrupt airflow. Using an original BMW part allows for maintaining the structural integrity of the intake system and facilitates the diagnosis of potential engine problems.

Condition, Origin, and Benefits of Using a Used Part

The offered intake hose is a used part, sourced from a dismantled BMW vehicle. Such components, when maintaining proper sealing and free from mechanical damage, work very well as a service solution, allowing for the preservation of the vehicle's original specification while optimizing repair costs. Choosing an original used component is often preferred over aftermarket alternatives with uncertain geometry and material quality.

For workshops and individual users, this means the ability to restore proper intake system operation without altering the factory design, which is particularly important in modern diesel engines where every intake system component interacts with advanced electronic control.

Expanding Knowledge and Selecting Related Parts

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as intake hoses, intake ducts, or filter housings, check the available parts in the Other BMW category.

To better understand the design differences in modern engines, intake systems, and the impact of engine accessories on performance and driving characteristics, it is worth reading an article comparing sports versions to standard models – you can find it here: Audi RS vs. Other Models – What Lies Under the Hood and Chassis?.