Filter Box Mini Cooper R55 R56 Diesel Air Intake Silencer Muffler 7805323

Visual condition of the part

The product shows signs of use visible in the photos.

Filter Box Mini Cooper R55 R56 Diesel Air Intake Silencer Muffler is a factory housing from the Air filter housings group, designed for Mini R55 and R56 series diesel engines. It ensures stable mounting of the filter element, proper airflow to the power unit, and maintains the factory operating characteristics of the diesel engine.

Specifications and technical data

• SKU: 7805323-1
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7805323
• Substitutable numbers: 13717805323, 7805323, 9685205580
• Fuel type: Diesel
• Category: Air Filter Housings

Purpose and function in the intake system

The air filter housing in a Mini with a Diesel engine is responsible for airtight air routing from the intake to the intake manifold, while protecting the filter element from mechanical damage and excessive vibrations. Using the original housing allows for maintaining the correct cylinder filling parameters, which translates into stable power, proper turbocharger operation, and predictable fuel consumption.

Thanks to a design consistent with the factory Mini project, the housing maintains the appropriate geometry of the intake ducts, which reduces pressure drops and minimizes the risk of air turbulence before the mass air flow sensor. This is particularly important in modern diesel units, where precise measurement of the intake air mass is crucial for the fuel dose and the operation of the injection system.

Construction and fitment for Mini R55 / R56

The Filter Box Mini Cooper R55 R56 Diesel Air Intake Silencer Muffler has been designed specifically for the engine bay of the Mini R55 and R56 with diesel units, which ensures proper placement of mounting points and compatibility with stock intake hoses. The appropriately shaped housing facilitates the installation of the filter element and its subsequent service replacement, without the need to modify other accessory components.

Precise fitment with factory brackets and adjacent components limits the transfer of vibrations to the body and reduces the risk of leaks in the intake system. As a result, the engine maintains the operating standards intended by the manufacturer, and the intake system remains resistant to typical problems resulting from the use of non-original, poorly fitted housings.

Characteristics of the used component

The offered Filter Box Mini Cooper R55 R56 Diesel Air Intake Silencer Muffler comes from dismantling and is a used part, which allows for combining an attractive price with the preservation of factory specifications. This type of part is particularly attractive for post-accident repairs, replacing a damaged housing after a crack, or restoring the car to a state close to the original after previous intake modifications.

Choosing an original, used housing from the same model series minimizes the risk of assembly problems, incorrect hose routing, or collisions with other elements in the engine bay. It is a practical solution for workshops and users who expect a predictable repair result and compliance with Mini's factory design assumptions.

Application in service and conservative tuning

Replacing a damaged or leaking air filter box is an important stage in comprehensive intake system service in a Mini with a diesel engine. An airtight housing helps limit the suction of contaminants outside the filter, which positively affects the durability of the turbine, mass air flow sensor, and intake manifold. It is also an important element in so-called conservative tuning, focused on maintaining stable operating parameters of the power unit.

By using an original housing from the Air filter housings group, it can be safely combined with various filter elements (including replacements from renowned manufacturers) while maintaining the factory intake geometry. This approach is particularly valued by users who want to improve the car's serviceability without interfering with the basic construction of the air supply system.

Intake system expansion and additional materials

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

For those interested in the wider use of second-hand parts in the automotive industry, including service and tuning projects, practical tips on selecting used components, their verification, and their impact on vehicle durability may be useful – you can find more on this topic in the article Audi on second-hand parts – tuning and repairs without losing quality.