BMW Mini Cooper One R55 R56 R57 Air Conditioning Heater Evaporator 9262788

The Mini R55 R56 R57 Water Heater Evaporator is a cabin heating system component designed for Mini R-series models, engineered as part of the original manufacturer's installation. Its factory design ensures consistency with the cooling and ventilation system, as well as stable operating parameters under typical usage conditions. This is a solution for users seeking a proven component rather than replacements of uncertain origin.

Specifications and technical data

• SKU: 9262788
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 9262788
• Substitutable numbers: 64119262788, 9262788, 64113422669, 3422669
• Category: Other Air Conditioning & Heating

Purpose and Role in Mini Heating System

The Mini R55 R56 R57 Water Heater Evaporator is responsible for transferring heat from the engine's cooling system to the air directed into the vehicle's interior. In practice, a properly functioning unit allows for rapid defogging of windows and maintaining a comfortable cabin temperature without excessively burdening other components.

As a part from the Other category, this component is dedicated to specific design solutions used in Mini, where the heating and ventilation system is tightly integrated with the body architecture and dashboard. Replacing it with the correct model preserves the factory airflow and thermal efficiency parameters.

Technical Characteristics and Fitment

The water heater in this version has been developed for precise fitment within the Mini R-series installation, facilitating assembly and reducing the risk of leaks. The manufacturer's design ensures:

• adequate heat exchange surface area for the cabin heating system,
• compatibility with factory cooling system connectors and hoses,
• cooperation with the original air vent housing and air ducts.

The presence of dedicated part numbers and interchangeable numbers (visible in the specifications) simplifies verification of compatibility with specific equipment versions and vehicle model years. This allows for selecting a component that matches the factory configuration, which is particularly important for cars with different air conditioning variants.

Condition, Verification, and Service Application

This heater is offered as a used part, enabling economical repair of the heating system while maintaining the original Mini design. This type of part is particularly suitable in situations where:

• the existing heater has developed leaks or become clogged,
• there are problems with cabin heating or window defogging,
• replacement is necessary after intervention in the cooling system or vehicle interior.

Using a component from the original Mini production line promotes proper fluid and air flow, and minimizes the risk of installation issues typical of some aftermarket replacements.

Benefits of Choosing an Original Mini Heater

Selecting a heater dedicated to the Mini R-series translates into a range of practical service and operational benefits:

• Factory Fitment – compatibility with the Mini dashboard structure and air duct system.
• Cooling System Consistency – manufacturer-specified connector diameters and flow characteristics.
• Stable Heating Parameters – ability to achieve predictable air temperature with typical control panel settings.
• Part Number Identification Support – easier part matching thanks to numbers visible in the specifications section.

If you need other parts from the Other category dedicated to this brand, check our offer for other Mini parts, where you will find a wide selection of components tailored to various models.

Technical Knowledge and Powertrain Development

When planning more extensive service work, it's worth considering the car as a whole – from the heating system, through the suspension, to the powertrain. For a comparison of solutions used in other brands and segments, you can refer to comparative material discussing differences in engine, brake, and chassis design in higher-performance cars. More information can be found in the article Audi RS vs Other Models – What's Under the Hood and Chassis?, which illustrates how manufacturers design key systems in cars with diverse characteristics.

Summary

The Mini R55 R56 R57 Water Heater Evaporator is a solution for users who want to restore proper cabin heating functionality while maintaining the original Mini specification. Its appropriate fitment with the cooling and ventilation system, the ability to identify it by part numbers in the specifications, and a favorable cost-to-functionality ratio make it a practical choice for repairs and upgrades on R-series models.