BMW 7 E66 Air Con Coolant Hose Pipe Line Rear Heater Coolbox Fridge 6923949

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 in the console. Thanks to its precise fit for the E66 platform, it ensures stable refrigerant routing and proper operation of the rear air conditioning module, which translates into thermal comfort for passengers.

Specifications and technical data

• SKU: rhd-6923949
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6923949
• Substitutable numbers: 64536923949, 6923949, KZ
• Location on the vehicle: Rear
• Category: A/C Hoses & Fittings

Purpose and function in the air conditioning system

This hose is part of the Air conditioning lines, hoses and connectors category and operates in the rear of the vehicle, where it is responsible for transporting refrigerant between the main air conditioning system and the rear heater and coolbox. Its placement in the rear body section requires resistance to temperature fluctuations and proper routing along factory mounting points.

The original design of the hose ensures:

• refrigerant line routing consistent with the manufacturer's design,
• proper cooperation with the rear heater and coolbox,
• a tight connection with other air conditioning system components.

Compatibility and fit for BMW 7 Series E66

The hose has been designed specifically for the E66 body, which means its geometry, length, and connection points are adapted to the factory routing in the center tunnel and the rear part of the cabin. As a result, installation is orderly, without the need for system modifications or custom mounting brackets.

Its original BMW origin helps maintain the integrity of the entire air conditioning system, and the use of a dedicated hose minimizes the risk of stress, leaks, and improper temperature distribution in the rear interior.

Characteristics of the used component

The item comes from dismantling and is offered as a used air conditioning system hose. This type of part, provided it is airtight and free of mechanical damage, can successfully continue to operate in the system, ensuring proper refrigerant flow. In practice, this allows for an economical repair of the air conditioning system while maintaining the manufacturer's original specifications.

Choosing a used OEM hose is particularly beneficial in the case of complex installations, such as rear heating and coolbox systems, where the fit of the shape and connectors is crucial for the durability of the entire system.

Benefits of using an original BMW hose

Using this hose in a BMW 7 Series E66 allows you to maintain the structural integrity of the air conditioning system and preserve travel comfort in the rear of the cabin. The main advantages include:

• factory fit for the E66 body – compliance with original system routing,
• integration with the rear heater and coolbox without additional modifications,
• maintaining air conditioning system performance parameters in accordance with the manufacturer's specifications.

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

Technical support and selection of used components

When selecting used air conditioning system elements and other components, it is worth paying attention to their origin, compliance with reference numbers, and technical condition. It is good practice to combine original hoses, compressors, and control modules within a single system, which facilitates diagnostics and service.

If you are considering a wider use of used OEM parts in premium cars and want to better understand how to safely reduce repair costs, the article on our blog will be helpful: Used parts for Mercedes – original parts from dismantling. Although it concerns a different brand, it well illustrates the approach to selecting second-hand components in the luxury car segment.