AUDI S8 D3 Air Duct Channel Heating Ventilation Lower Rear Right O/S 4E0819014A

AUDI S8 D3 Air Duct Channel Heating Ventilation Lower Rear Right O/S is an original air ventilation system component, designed for the rear right side of the Audi luxury sedan cabin. This component is responsible for precisely directing the airflow from the heating and ventilation system, ensuring stable thermal conditions for rear-seat passengers. Thanks to its factory geometry and fitment, it is a particularly beneficial solution for professional air conditioning and ventilation system repairs.

Specifications and technical data

• SKU: 4E0819014A
• Mark: Audi
• Condition: Used
• OEM Part Number: 4E0819014A
• Substitutable numbers: 4E0819014A, 4E0 819 014 A
• Location on the vehicle: Rear, Right
• Category: Other Air Conditioning & Heating

Purpose and function in the ventilation system

The lower air duct in the rear right interior of the Audi S8 D3 is responsible for stable airflow guidance from the heating and ventilation system to the appropriate outlets in the rear zone. A correctly selected element of this type is crucial for:

• maintaining an even temperature in the rear part of the cabin,
• preserving the proper pressure and direction of airflow,
• reducing unwanted noise in the ventilation ducts,
• proper cooperation with other ventilation ducts and grilles.

Replacing a damaged duct with an original Audi part allows you to restore the factory HVAC system performance without the need for system modifications.

Construction and fitment for Audi S8 D3

The presented duct has been designed specifically for the S8 D3 platform, taking into account the characteristic routing of ducts in the rear of the body. The appropriate body shaping allows for:

• precise fitment with center console and rear cowl elements,
• collision-free routing relative to the electrical installation and upholstery,
• secure fastening at factory mounting points.

As a result, installation is predictable, and the duct maintains rigidity and connection tightness after installation, which is essential for heating and ventilation efficiency.

Characteristics of the used part

The offered air duct comes from dismantling, which means it is an original Audi component with preserved factory geometry and mounting points. For many users and workshops, this is a beneficial alternative to replacements, especially in the case of precise ventilation system elements where accurate fitment to the specific model and body version matters.

Choosing a used element of this type is often practiced during interior and air conditioning repairs in premium class cars, where the priority is to maintain the original design and compatibility with other components.

Practical installation tips

Due to its location in the rear right part of the vehicle, installing the duct requires access to the center console zone and rear cabin trim elements. When planning the work, it is worth paying attention to:

• checking the condition of adjacent ventilation ducts and mounts,
• verifying connection tightness after installation,
• proper positioning relative to upholstery and covers to avoid later rattles and vibrations.

After installation, it is recommended to test the heating and ventilation system in various operating modes to confirm proper airflow in the rear passenger zone.

System expansion and related parts

If you are planning a comprehensive repair or upgrade of the rear ventilation zone in your Audi and need other elements from the same group, such as additional air ducts, distribution hoses, or air routing covers, check the available parts in the Other Audi category.

For users interested in the structural differences between sports versions and standard models, including solutions in cooling, chassis, and associated systems, the article Audi RS vs other models – what is hidden under the hood and chassis? may be helpful, as it discusses key technical aspects from the perspective of part selection.

If you are considering broader use of dismantled components for service projects or modifications, it is worth reading the guide Buying used car parts – the most common mistakes when choosing parts for tuning, which helps to consciously plan purchases of used elements and minimize the risk of incorrect selection.