BMW 7 E66 Air Con Coolant Hose Pipe Line Rear Heater Coolbox Fridge 6923948

BMW 7 E66 Air Con Coolant Hose Pipe Line Rear Heater Coolbox Fridge is an original air conditioning system component designed to support the rear heating zone and the factory-fitted coolbox/mini-fridge. Thanks to its precise fit for the E66 design, it ensures stable refrigerant flow and proper operation of the rear climate control module, which translates into comfort for passengers in the rear seats.

Specifications and technical data

• SKU: rhd-6923948
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6923948
• Substitutable numbers: 64536923948, 6923948, KZ
• Location on the vehicle: Rear
• Category: A/C Hoses & Fittings

Purpose and function in the air conditioning system

This hose belongs to the Air conditioning hoses, pipes, and connectors group and is specifically designed for the rear section of the BMW 7 Series E66 body. It is responsible for transporting refrigerant between the main air conditioning system and the rear heater and coolbox, ensuring:

• stable refrigerant pressure in the rear section of the system,
• proper cooling of the luggage compartment and the rear part of the cabin,
• consistent operation of the rear heater and coolbox with the front climate control panel.

Its placement in the rear of the vehicle requires the hose to have a specific shape and routing to avoid interference with suspension components, upholstery, and trunk trim.

Construction and fitment for the BMW 7 E66

The air conditioning hose was developed by BMW as an OEM system component, which means full compatibility with the factory installation in the 7 Series E66 model. It includes the section carrying refrigerant to the rear heater and coolbox, with appropriately shaped ends and connectors for factory quick-connect fittings and mounts.

As a result, installation is straightforward, maintaining the original mounting points and routing within the vehicle body. This solution minimizes the risk of vibrations, leaks, and improper positioning relative to other components in the rear of the vehicle.

Condition, service application, and benefits of installation

The item is offered in used condition, which allows for an economical repair of the air conditioning system while maintaining the manufacturer's original specifications. This is a practical solution in situations where:

• the original hose has suffered from corrosion, mechanical damage, or leaks,
• a section of the installation needs replacement following bodywork repairs in the rear of the vehicle,
• the factory coolbox or rear heating system is being restored to working order.

Using an original hose from dismantling allows for the preservation of factory flow and sealing parameters, which is crucial for the proper operation of the compressor, expansion valves, and the entire air conditioning system.

Selection and integration with other system components

Before installation, it is worth verifying the part's compatibility with the specific equipment version of the BMW 7 Series E66, especially if the vehicle is equipped with a rear coolbox or an extended climate control zone for rear passengers. The hose works in conjunction with other system components, such as:

• high and low-pressure lines routed along the chassis,
• rear heat exchangers and heaters,
• valves controlling refrigerant flow to the rear section.

Proper selection and installation of this component reduce the risk of recurring leaks and ensures uniform air conditioning performance throughout the vehicle, which is particularly important in luxury limousines such as the BMW 7 Series.

If you are planning a comprehensive repair or upgrade of the air conditioning zone in your BMW and need other elements from the same group, such as refrigerant lines, flexible hoses, or service connectors, check out the available parts in the BMW air conditioning hoses, pipes, and connectors category.

Expert support and cost optimization

When selecting used air conditioning system components, many users look for a way to combine OEM quality with a reasonable service budget. In a similar context, it is worth checking out advice on purchasing original parts from dismantling for premium brands – you can find practical tips in the article Used parts for Mercedes – original parts from dismantling, which discusses the advantages of using verified components from the secondary market.