Audi A8 D4 4H Rear Heater Matrix Connecting Pipes 4H0898037D

Audi A8 D4 4H Rear Heater Matrix Connecting Pipes is an original component of the rear cabin heating system, belonging to the Air conditioning hoses, pipes and connectors group. Designed by Audi, it ensures proper coolant flow in the rear heater zone, which translates into stable thermal conditions and passenger comfort.

Specifications and technical data

• SKU: 4H0898037D
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0898037D
• Substitutable numbers: 4H0898037D, 4H0 898 037 D
• Location on the vehicle: Rear
• Category: A/C Hoses & Fittings

Purpose and function in the heating system

The presented set of heater pipes is dedicated to the rear of the vehicle, where it is responsible for transporting the heating medium between the main system and the rear heater. Its placement in the rear area of the vehicle allows for precise delivery of the medium to the additional heat exchanger, which is particularly important in luxury limousines such as the Audi A8 D4, equipped with an extensive comfort zone for rear passengers.

Properly selected pipes and hoses minimize pressure drops and the risk of local overheating, as well as reduce the possibility of leaks in critical points of the system. As a result, the heating system operates stably, and the temperature in the rear part of the cabin remains at a consistent level.

Original Audi construction and installation fit

The element comes from the Audi line, which means it maintains factory geometry, connection diameters, and mounting points. This design facilitates installation in the original brackets and guides, without the need for modifications or the use of additional adapters. For a mechanic, this means predictable work time, and for the user – the certainty that the pipes will not interfere with other components in the rear of the bodywork.

The pipe and hose system has been designed to operate under the variable thermal and mechanical conditions typical for the underfloor space and the rear of the vehicle. The appropriate selection of materials and the shape of the flow path reduce the risk of abrasion, micro-cracks, and excessive stress during operation.

Characteristics of the used product

The offered set belongs to the group of Used parts, which in practice means an element from disassembly, intended for further use after proper installation. Such components are often chosen for heating and air conditioning system repairs, where maintaining original geometry and compatibility with factory connectors is crucial.

Choosing a used heater pipe for the Audi A8 D4 allows for maintaining the integrity of the entire system while reducing costs compared to new elements. This is a particularly beneficial solution for complex repairs when more than one component in the rear part of the installation needs to be replaced.

Integration with the air conditioning and heating system

The rear heater pipes and hoses work with other elements of the air conditioning and heating system, ensuring proper circulation of the medium throughout the vehicle. A correctly selected and installed element from this group:

• ensures stable flow of the heating medium to the rear heater,
• reduces the risk of leaks in the rear area of the vehicle,
• maintains the factory routing of the lines,
• supports even heat distribution in the cabin.

Thanks to this, the air conditioning and heating system in the Audi A8 D4 maintains its design operating parameters, which is important both from the point of view of comfort and the durability of other components.

System expansion – selecting other elements

If you are planning a comprehensive repair or upgrade of the air conditioning and heating area in your Audi and need other elements from the same group, such as additional pipes, flexible hoses, or service connectors, check the available parts in the Audi air conditioning hoses, pipes and connectors category.

When deciding to use pre-owned components in premium cars, it is also worth checking out practical tips on selecting original parts from disassembly – you will find them in the article Used parts for Mercedes - original parts from disassembly, which discusses the advantages and principles of safely using components from the secondary market.