Mini Cooper R57 LCI Automatic Air Conditioning A/C Control Unit Module 3457397

Visual condition of the part

The product shows signs of use visible in the photos.

Mini Cooper R57 LCI Automatic Air Conditioning A/C Control Unit Module is a factory component from the Air conditioning controllers group, designed for installation in the front part of the vehicle cabin. The panel ensures precise management of the cooling and heating system, and its design is adapted for use with an automatic transmission, which facilitates integration with the car's electronics.

Specifications and technical data

• SKU: 3457397-20
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 3457397
• Substitutable numbers: 64113457397, 3457397, 64113456918, 3456918, 64113456392, 3456392, 64113456809, 3456809, 64113456224, 3456224, EM
• Location on the vehicle: Front
• Gearbox type: Automatic
• Category: HVAC Controls & Control Units

Purpose and function of the panel

The air conditioning control panel in the R57 LCI version is responsible for handling all basic functions of the Mini's air conditioning system, such as temperature regulation, fan speed, or air distribution. As an element integrated into the dashboard and mounted at the front of the vehicle, it works with factory sensors and control modules, ensuring consistent operation of the entire system.

Thanks to its design intended for use with an automatic transmission, the panel is matched to the logic of the drivetrain, which promotes stable air conditioning operation in various driving modes. This solution allows for maintaining the original ergonomics and interior aesthetics characteristic of the Mini.

Benefits of using an original air conditioning controller

Using an air conditioning control panel dedicated to the Mini Cooper R57 LCI allows for maintaining the consistency of the electrical installation and communication with other controllers in the vehicle. The original design reduces the risk of compatibility issues, dashboard errors, or incorrect system response to setting changes.

The main advantages of this solution include:

• Factory fit for the interior – the panel is designed for a specific model, so it fits the center console without any modifications.
• Consistent cooperation with vehicle electronics – the controller communicates with the air conditioning system according to the manufacturer's specifications.
• Maintaining operational ergonomics – the layout of buttons and knobs remains intuitive for the Mini driver.

Installation characteristics

The air conditioning control panel is intended for installation in the front part of the cabin, in the central zone of the dashboard. Its construction is prepared for cooperation with the wiring harness intended for an automatic transmission, which facilitates integration with the factory wiring and existing mounts.

In practice, this means that with the correct selection of the part for a specific Mini equipment version, it is possible to maintain the button layout, backlighting, and operating logic consistent with the original vehicle configuration. This is particularly important during repairs where the goal is to restore the factory technical and visual condition.

Condition and service application

The panel comes from the group of used parts, which makes it an attractive solution for maintenance repairs and restoring the efficiency of the air conditioning system in older Mini models. This type of part is often chosen in situations where the existing controller has suffered mechanical damage or has stopped responding correctly to setting changes.

Before installation, it is recommended to perform a standard verification of the electrical installation and the correct operation of other air conditioning components to rule out other sources of faults and fully utilize the potential of the newly installed panel.

Technical support and additional information

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, control modules, or function buttons, check the available parts in the Mini air conditioning controllers category.

To better understand the relationships between the control panel and other elements of the interior cooling system, it is worth reading material discussing typical problems within the air conditioning, including issues related to the compressor – the article Air conditioning compressor – symptoms of failure, causes, and safe replacement will be helpful, as it facilitates the diagnosis of the entire system.