BMW F80 M3 F82 F83 M4 Ventilation Hose Air Intake Pipe Tube 7850244

The BMW F80 M3 F82 F83 M4 Crankcase Ventilation Hose Air Breather Hose is an original component of the crankcase ventilation system, designed for the sporty M series models. Thanks to its factory geometry and fit for BMW powertrains, it ensures stable oil vapor discharge and proper operation of the intake system. This is a solution for users who expect consistency with factory specifications and want to maintain correct engine operating parameters.

Specifications and technical data

• SKU: 7850244
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7850244
• Substitutable numbers: 11127850244, 7850244
• Category: Air Intake & Fuel Sensors

Function of the Air Breather Hose in BMW M3 / M4

The breather hose in BMW M3 F80 and M4 F82/F83 models is responsible for the controlled discharge of gases from the crankcase into the intake system. A properly functioning element of this type:

• stabilizes crankcase pressure,
• limits unwanted blow-by and contaminants in the intake,
• supports smooth engine operation across the full load range,
• helps maintain correct air-fuel mixture parameters.

For the powerful engines used in the M3 and M4, a correctly selected breather hose is crucial for the stability of the air intake system and long-term operation.

Original Origin and Fit for BMW

The offered hose belongs to the Air and Fuel Intake Sensors group, highlighting its connection to precise control of engine supply parameters. Original BMW origin means:

• retention of factory geometry and connection diameters,
• compatibility with the standard engine bay installation in F80, F82, and F83,
• consistency with factory intake and engine control system solutions.

This allows the hose to be used as a replacement part for a worn or leaking component, without the need for installation modifications.

Application in the Air and Fuel Intake System

As a component from the Air and Fuel Intake Sensors group, the breather hose works with other components responsible for controlling airflow and oil vapor. In practice, this translates to:

• more predictable engine behavior during load changes,
• reduced risk of interference with intake sensors,
• maintenance of stable conditions for the mixture control system.

Replacing a worn hose with an original part is particularly important in cars driven dynamically, where the intake system operates under increased thermal and pressure loads.

Product Characteristics and Condition

The breather hose offered in this listing comes from the BMW brand and is a used part. A used component of this type allows for economical repair while maintaining original construction, which is beneficial for users who care about consistency with the factory design. Choosing an original hose instead of an aftermarket one helps maintain proper hose routing in the engine bay and minimizes the risk of fitment issues.

Selection by Numbers and Technical Support

The breather hose is linked to a specific OEM part number and interchangeable numbers, which facilitates precise identification for a specific BMW M3 or M4 configuration. When selecting, it is advisable to use manufacturer designations and vehicle data to ensure full installation compatibility.

If you want to deepen your knowledge on making informed choices about used parts, how to verify compatibility, and the importance of OEM markings in the context of electronics and components interacting with the intake system, please refer to the guide: Used Car Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?

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 vacuum hoses, ventilation components, or intake-related components, check the available parts in the BMW Air and Fuel Intake Sensors category.