Mini R55 R56 R57 R60 Heater Matrix Radiator Core Double Pipe Hose 3422667

MINI R55 R56 R57 Heater Hoses Pipe Set is a set of cabin heating system components designed for Mini models of the R55, R56, and R57 series. The set of hoses and pipes allows for efficient restoration of proper coolant circulation in the heater, ensuring stable heating performance and driving comfort in colder conditions.

Specifications and technical data

• SKU: 3422667
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 3422667
• Substitutable numbers: 3422667, 64113422667
• Part type: Hose
• Category: A/C Hoses & Fittings

Purpose and Function in the Heating System

The heater hose set is responsible for safe and leak-free routing of the heating medium between the engine and the cabin heat exchanger. Properly selected pipes and hoses are crucial for:

• maintaining stable interior temperature under various engine loads,
• ensuring uniform medium flow through the heater,
• minimizing the risk of leaks at critical points in the system.

Using a complete set instead of individual sections reduces fitting issues and simplifies diagnostics and installation.

Construction of the Mini Heater Hose Set

The presented set of hoses, pipes, and tubes has been specifically designed for the engine bay architecture of the Mini R55, R56, and R57. Appropriately shaped sections ensure:

• precise routing of the hoses while maintaining factory mounting points,
• adequate flexibility of the hoses in areas subject to vibrations and engine movement,
• stability of rigid pipes in areas with elevated temperatures and limited space.

This ensures the heating system retains its factory operating characteristics, and the risk of material abrasion or stress is reduced.

Benefits of Using a Complete Set

Replacing the entire set of heater hoses in a Mini offers a range of practical service and operational advantages:

• component consistency – all elements are matched in terms of length, diameter, and shape,
• easier installation – the mechanic does not need to fabricate sections or adapt universal hoses,
• reduction of potential leak points due to fewer additional connections,
• preservation of the system's factory geometry, which facilitates subsequent inspections and potential repairs.

This solution is particularly beneficial for comprehensive cooling and heating system maintenance when a predictable service outcome is desired.

Condition, Origin, and Practical Application

The offered Mini heater hose set is a used part from disassembly and belongs to the category of air conditioning hoses, pipes, and connectors, which aids in its identification in parts catalogs. A used component allows for economical repair of the heating system while maintaining compliance with the vehicle's factory specifications.

Prior to installation, the standard service procedure is recommended, including:

• leak testing of all sections,
• verification of the condition of the vehicle's connectors and fittings,
• bleeding the system after filling with coolant.

Related Mini Air Conditioning Hoses, Pipes, and Connectors

If you plan to replace other components from the same group during your heating system service, check the available Mini air conditioning hoses, pipes, and connectors to select components from the same category and brand.

Technical Knowledge and Selection of Used Parts

When selecting used components for heating and air conditioning systems, it is advisable to draw on experience from other premium segment brands. A good supplement to service knowledge can be an article describing the advantages of using original disassembled parts in higher-class vehicles, such as Mercedes-Benz – more information can be found in the material “Used Parts for Mercedes – Original Disassembled Parts”, which discusses the practical aspects of selecting and installing second-hand components.

When planning seasonal maintenance, especially before the winter period, it is also worth familiarizing yourself with the guide on preparing your car for low temperatures – helpful tips can be found in the article “Winter Essentials: Which Used Car Parts Are Worth Checking and Replacing Before the Frost?”, which discusses, among other things, the importance of a functional heating system for driving safety and comfort.