BMW F80 M3 F82 F83 M4 S55 Air Charge Intake Pipe Tube Cyl 4-6 7846271

BMW F80 M3 F82 F83 M4 S55 Cylinder 4-6 Air Intake Pipe 7846271 is an original intake system component from the Hoses, Tubes, and Pipes group, designed for the S55 engine in the sporty BMW M3 and M4 models. It ensures precise air routing to cylinders 4-6, promoting stable engine operation and consistent performance across a wide range of loads. A used OEM part is a sensible choice for drivers expecting factory fitment and correct integration with stock components.

Specifications and technical data

• SKU: 7846271-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7846271
• Substitutable numbers: 13717846271, 7846271
• Category: Hoses, Lines & Pipes

Intended Use and Function in the Intake System

The intake pipe for cylinders 4-6 in the S55 engine is responsible for directing air to the second section of the manifold, which is crucial for even cylinder filling. The appropriately shaped cross-section and channel geometry help maintain a stable flow, reducing local pressure drops and unwanted turbulence.

Thanks to its factory design, this component works seamlessly with the stock manifold, air filter housing, and other conduits, creating a cohesive intake system optimized for the S55 engine's characteristics. Using the original pipe allows for engine performance parameters to be maintained in line with the manufacturer's specifications.

Benefits of Using the Original Intake Pipe

Choosing the original intake conduit for the BMW M3/M4 with the S55 engine offers several significant operational advantages:

• factory fitment to the intake system without the need for modifications or adaptations,
• maintenance of stock airflow characteristics to cylinders 4-6,
• seamless integration with stock sensors and ancillary components,
• reduced risk of leaks in the critical area between the filter and the manifold,
• maintenance of stable engine operating conditions under loads typical for M models.

By using an original part from the Hoses, Tubes, and Pipes group, you minimize the risk of problems associated with ill-fitting aftermarket parts, which is particularly important for high-performance turbocharged engines.

Professional Installation and Diagnostics

The intake pipe for cylinders 4-6 should be installed while ensuring the cleanliness of the channels and correct positioning relative to other conduits. In practice, this means checking the condition of clamps, seals, and mounting points to avoid micro-leaks that can affect engine control system readings.

When replacing, pay attention to:

• absence of cracks and deformations in bent areas,
• condition of mating surfaces with the manifold and filter housing,
• correct routing relative to adjacent conduits and wiring harnesses.

This approach helps maintain stable mixture parameters and reduces the risk of intake system-related errors in the engine control unit.

Part Condition and Service Application

The offered intake pipe is a used part, allowing for an economical repair of the intake system while maintaining the original manufacturer's specifications. This type of component is particularly useful for:

• repairs after mechanical damage in the engine bay,
• resolving intake leaks indicated by power loss or diagnostic errors,
• restoring the stock configuration after previous modifications.

For workshops specializing in BMW M3/M4, using the original intake pipe facilitates maintaining consistent service quality and reduces the time required for part fitting.

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, flexible intake hoses, or rigid air pipes, check the available parts in the BMW Hoses, Tubes, and Pipes category.

For a better understanding of the relationships between the intake system, engine control, and vehicle behavior on the road, an article describing the operation of the steering and power steering system may be helpful – you can find it here: Steering and Power Steering System – How It Works and What Fails?.