BMW 7 E66 Air Con Coolant Hose Pipe Line Rear Heater Coolbox Fridge 6923947

The Air Conditioning Refrigerant Hose for the Rear Heater and Cooler of the BMW 7 Series E66 is an original component of the air conditioning system, designed for precise refrigerant routing in the rear of the vehicle. Thanks to its factory fit for the E66 platform, it ensures stable operation of the rear heater and cooler/mini-fridge, supporting the thermal comfort of passengers on long journeys. This solution is dedicated to users who expect consistency with the factory BMW construction and want to maintain the full functionality of the advanced air conditioning system.

Specifications and technical data

• SKU: rhd-6923947
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6923947
• Substitutable numbers: 64536923947, 6923947, KZ
• Location on the vehicle: Rear
• Category: A/C Hoses & Fittings

Purpose and Function in the BMW E66 Air Conditioning System

The offered hose belongs to the group of Hoses, Pipes, and Connectors for Air Conditioning and is specifically designed for the luxurious BMW 7 Series E66 sedan with an advanced rear cabin air conditioning system. It is responsible for transporting refrigerant between the system components serving the rear heater and the cooler/cooling box, which directly impacts:

• cooling efficiency of the rear passenger zone,
• temperature stability in the cooler/mini-fridge,
• correct pressure in the refrigerant circuit in the rear part of the installation.

Its placement in the rear of the vehicle allows for optimal hose routing relative to factory mounts and covers, minimizing the risk of vibrations and leaks.

Construction, Fit, and Installation

The air conditioning hose has been constructed as a dedicated element for the specific E66 body architecture, which translates to precise fitting with the factory system's brackets and connectors. The shape, length, and placement of the ends are adapted to:

• the rear heater,
• the cooler/cooling box installation,
• the existing hose routing path in the tunnel and trunk.

This ensures an organized installation process, without the need for modifications or fitting universal replacements. Appropriately selected connectors enable a leak-proof connection with other air conditioning system components, which is crucial for maintaining proper pressure and preventing refrigerant loss.

Benefits of Using an Original Air Conditioning Hose

Using a hose designed for the BMW 7 Series E66 allows for maintaining the air conditioning system's operating parameters in line with the manufacturer's specifications. The most significant advantages include:

• Factory Geometry – the hose's route corresponds to the original installation path, facilitating installation and servicing.
• Compatibility with Rear Heater and Cooler – the hose works with the factory components responsible for rear passenger comfort.
• Stable System Operation – proper refrigerant flow reduces the risk of overheating or insufficient cooling in the rear zone.
• Consistency with the Rest of the System – maintaining the original BMW concept simplifies diagnostics and future repairs.

Characteristics of a Used Component

The offered hose is a used part from a dismantled vehicle, representing a reasonable compromise between cost and maintaining original BMW specifications. Choosing this solution allows for:

• reducing expenses when repairing an advanced air conditioning system,
• maintaining the original system design without using replacements of uncertain fit,
• preserving compliance with the factory operating parameters of the rear heater and cooler.

This is a practical option for users who want to restore the full functionality of the rear air conditioning in their BMW 7 Series E66 while managing their service budget.

BMW Air Conditioning System Expansion – Related Components

If you are planning a comprehensive repair or upgrade of the air conditioning zone in your BMW and need other components from the same group, such as additional hoses, pipes, or cabin cooling system connectors, check the available parts in the category Hoses, Pipes, and Connectors for BMW Air Conditioning.

If you are also considering using used, original components in other premium cars and want to learn practical tips on the cost-effectiveness of such solutions, read the article Used Parts for Mercedes – Original Parts from Dismantling, which discusses the approach to servicing premium vehicles using proven parts from dismantling.