Mini Cooper R57 LCI Automatic Air Conditioning Heater Control Unit 3455303

Description

Mini Cooper R57 LCI Automatic Air Conditioning Heater Control Unit is a factory-fitted control element for the ventilation and air conditioning system, designed for Mini vehicles equipped with an automatic transmission. This practical solution allows for precise management of temperature, air distribution, and thermal comfort inside the cabin, while maintaining the original cockpit ergonomics. By using an original panel from the Air conditioning regulators group, full compatibility with the electrical installation and dashboard architecture is preserved.

Specifications and technical data

• SKU: 3455303
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 3455303
• Substitutable numbers: 64113455303, 3455303, 64113454866, 3454866, EM
• Gearbox type: Automatic
• Category: HVAC Controls & Control Units

Purpose and function of the air conditioning control unit

The LCI version air conditioning heater control unit for the Mini R57 is responsible for managing key comfort functions: temperature regulation, fan speed control, and air flow direction selection. Using an original controller ensures:

• consistent operation with the factory air conditioning and ventilation system,
• proper communication with body control modules,
• correct response to driver and passenger settings.

As a result, the air conditioning system maintains stable operating parameters, and the vehicle interior remains clear and functional.

Compatibility with automatic transmission

The presented panel is designed for use with Mini vehicles equipped with an automatic transmission. This means it is matched to the specific configuration of the center console and control layout, which minimizes the risk of installation issues. In practice, this translates into:

• easier integration with the factory center tunnel,
• preservation of the original layout of buttons and knobs,
• trouble-free use in daily operation.

Use of original Mini air conditioning regulators

Choosing an element from the Air conditioning regulators Mini group allows you to maintain the visual and functional consistency of the interior. The original panel:

• fits factory mounts and electrical harnesses,
• retains the control layout characteristic of the Mini,
• limits the need for modifications to the installation or cockpit.

This is particularly important when replacing a damaged panel after a failure or during interior modernization, when maintaining serial functionality and aesthetics is a priority.

Characteristics of the used part

The air conditioning heater control unit is offered as a used part, which allows for an economical repair of the comfort system while maintaining the manufacturer’s original specifications. This type of solution is often chosen for servicing older vehicles, where a reasonable cost is important while preserving the factory design. A used OEM element usually fits into the existing interior better than replacements with different textures or colors.

Mini air conditioning regulators – expansion and part selection

If you are planning a comprehensive repair or modernization of the cockpit area in your Mini and need other elements from the same group, such as additional control panels, knobs, or ventilation control modules, check the available parts in the Mini air conditioning regulators category.

Knowledge about used premium parts

When selecting used components for premium segment cars, it is worth knowing the specifics of original components and their behavior during long-term use. A broader discussion on the advantages of using original dismantled parts in high-class vehicles can be found in the article: Used parts for Mercedes – original parts from dismantling.

Summary

Mini Cooper R57 LCI Automatic Air Conditioning Heater Control Unit is a practical choice for Mini users who want to restore full functionality of the air conditioning and ventilation system while maintaining the factory look of the cockpit. The original air conditioning regulator, matched to the version with an automatic transmission, facilitates installation and helps maintain the consistency of the entire interior comfort control system.