Mini Cooper R57 LCI Automatic Air Conditioning Heater Control Unit 3455303

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mini Cooper R57 LCI Automatic Air Conditioning Heater Control Unit is an original controller designed for models equipped with an automatic transmission. It ensures precise management of cabin heating and cooling, maintaining the factory ergonomics and consistent interior look characteristic of the Mini brand.

Specifications and technical data

• SKU: 3455303-1
• 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 in the air conditioning system

The controller from the Air conditioning controllers category is responsible for managing temperature, airflow, and air distribution in the cabin of the Mini Cooper R57 LCI facelift model. This component works with the factory automatic air conditioning system, allowing for convenient adjustment of comfort parameters from the center console.

The panel is designed for integration with the vehicle's electrical system and air conditioning control modules, ensuring that it maintains operational logic consistent with the manufacturer's factory settings.

Compatibility with automatic transmission

The presented controller is intended for Mini Cooper R57 LCI versions equipped with an automatic transmission. This means it is tailored to the specific layout of the center console and the appropriate arrangement of buttons and knobs, ensuring they harmonize with the gear selector and other control elements.

Thanks to the correct configuration for an automatic transmission, the panel allows for convenient operation of the air conditioning without interfering with the center tunnel structure or requiring additional interior modifications.

Application of the original air conditioning controller

Using the original control panel in the Mini Cooper R57 LCI allows you to maintain visual consistency of the cockpit and proper cooperation with the vehicle's electronics. Proper matching of connectors and control logic reduces the risk of communication errors in the comfort system and facilitates diagnostics during future inspections.

This type of air conditioning controller is particularly recommended when replacing a damaged panel, performing post-collision repairs, or restoring full functionality of the heating and cooling system in a daily-driven vehicle.

Characteristics of the used component

The offered air conditioning control panel is a used part, sourced from dismantling, which allows you to combine factory fitment with a more favorable purchase cost compared to a new module. This type of solution is often chosen for servicing older vehicles, where both functionality and repair economy are important.

Before installation, it is recommended to perform a standard verification of the vehicle's electrical system and the proper operation of other air conditioning system components to fully utilize the capabilities of the offered controller.

If you are planning a comprehensive repair or upgrade of the air conditioning control zone in your Mini and need other elements from the same group, such as control panels, blower control modules, or additional switches, check out the available parts in the Mini air conditioning controllers category.

Knowledge about used parts and informed choices

When selecting a used air conditioning controller, it is worth knowing the advantages of original components from dismantling and their impact on the service costs of premium cars. A broader discussion of this topic, along with examples of air conditioning and comfort system elements, can be found in the article Used parts for Mercedes – original parts from dismantling, which helps to better understand how to safely use second-hand components.