BMW X3 F25 Filtered Air Intake Pipe Box Intake Air Mass Sensor Maf 7812946

Visual condition of the part

The product shows signs of use visible in the photos.

BMW X3 F25 Filtered Air Intake Pipe Box Intake Air Mass Sensor Maf is a component from the Lines, hoses and pipes group, designed for the air supply system in the BMW X3 F25 model. It is responsible for stable, directional airflow to the intake system, which promotes smooth engine operation and proper interaction with other engine components.

Specifications and technical data

• SKU: 7812946
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7812946
• Substitutable numbers: 7812946, 13717812946
• Tire profile: 65535
• Category: Hoses, Lines & Pipes

Purpose and function in the intake system

The air intake pipe in the BMW X3 F25 is responsible for guiding the airflow from the external inlet towards the subsequent components of the supply system. The properly shaped cross-section and geometry of the pipe help to reduce pressure drops and turbulence, which promotes stable engine performance across the full load range.

The element from this group is particularly important for:

• restoring the factory flow capacity of the intake system after mechanical damage,
• eliminating leaks that cause a drop in performance or unstable engine operation,
• comprehensive maintenance of the intake area in the BMW X3 F25.

Component characteristics and fitment

The intake pipe has been designed for the specific engine bay architecture of the BMW X3 F25, which ensures proper routing of the pipe in relation to other components. The appropriate shaping of mounts and bent sections facilitates installation and minimizes the risk of stress at the operating point.

As a part from the Lines, hoses and pipes category, the element works with other lines in the engine bay, creating a coherent airflow and operating fluid system. This makes it possible to maintain predictable engine operating conditions and ensure the correct functioning of control systems.

Condition, service application and benefits of installation

The offered intake pipe is a used part, which allows for an economical replacement of a damaged line while maintaining compliance with factory specifications. This type of component is particularly useful in situations where the existing pipe has cracked, deformed, or worn out, and the priority is to quickly restore proper system flow.

The main advantages of using an original intake pipe in the BMW X3 F25 include:

• maintaining the airflow geometry designed by the manufacturer,
• consistency with the factory mounting and routing system,
• possibility of integration with other intake system components without additional modifications.

Integration with other lines in BMW

Replacing the intake pipe is often associated with inspecting other lines in the engine bay, such as other intake sections, breather lines, or auxiliary flexible hoses. A consistent service approach helps reduce the risk of subsequent leaks and facilitates the diagnosis of potential power drops or unstable engine operation.

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 intake lines, flexible hoses, or additional guide pipes, check the available parts in the BMW lines, hoses and pipes category.

Technical support and vehicle configuration development

Selecting the right components for the intake system should be combined with a well-thought-out configuration of other vehicle elements, including tires and rims, to maintain consistent vehicle performance parameters. For drivers interested in conscious visual and technical wheel upgrades, a guide on selecting and refreshing alloy wheels may be useful – more information can be found in the article Used rims like new: a guide to buying and refurbishing alloy wheels.