Mercedes-Benz W204 W207 Ventilation Duct Air Rear Footwell A2048311346

Mercedes-Benz W204 W207 Ventilation Duct Air Rear Footwell is an original air ventilation system component designed for the rear part of the cabin, ensuring stable airflow to the passenger area. Thanks to its factory design tailored to the W204/W207 platform, the duct works seamlessly with the stock ventilation system, which facilitates installation and helps maintain the integrity of the air conditioning system. It is a practical solution for users who want to restore proper airflow circulation to the rear seats in a controlled manner.

Specifications and technical data

• SKU: A2048311346
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2048311346
• Substitutable numbers: A2048311346, A 204 831 13 46, KZ
• Location on the vehicle: Rear
• Category: Other Air Conditioning & Heating

Purpose and function of the rear ventilation duct

The presented air duct is a ventilation system component responsible for distributing air to the rear of the interior. It directs the airflow from the central tunnel or center console towards the rear passenger zone, supporting even distribution of the temperature set on the climate control panel.

A properly selected rear cabin ventilation duct allows you to:

• maintain predictable airflow around the rear seats,
• minimize drops in ventilation efficiency resulting from leaks or damage to the ducts,
• preserve the factory air routing geometry in W204/W207 family models.

Compatibility and fitment to the interior system

The original design of the duct is engineered for specific body types, which translates into precise fitment with the center tunnel and rear cowl elements. Properly shaped connection ports and duct routing reduce the risk of stress and leaks after installation.

The component is intended for installation in the rear of the vehicle, allowing it to integrate with factory air vents and tunnel covers. This solution maintains interior aesthetics and proper air conditioning operation without the need to modify other components.

Characteristics of the used component

The air duct comes from dismantling, which means it is a used original component. This type of part is a cost-effective alternative to aftermarket replacements because it retains the factory geometry, material, and mounting method specified by the vehicle manufacturer. When installed correctly, it enables the restoration of full ventilation functionality in the rear cabin zone.

Choosing a used ventilation duct is particularly justified in situations where mechanical damage to the duct has occurred (cracks, deformations, missing sections), while the remaining air conditioning system components are working correctly. Replacing the duct alone allows for reduced service costs while maintaining proper airflow parameters.

Benefits of using an original air duct

Using a factory air duct in the rear of the interior provides a number of practical benefits:

• Stable air conditioning system operation – a properly routed airflow reduces temperature differences between the front and rear of the cabin.
• Improved rear passenger comfort – efficient airflow to the rear seats improves travel conditions on longer trips.
• Reduction of unwanted airflow noise – the matched cross-section and shape of the duct reduce air turbulence.
• Factory mounting points – installation is carried out using existing brackets, without the need for structural modifications.

Technical support and additional information

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

For drivers interested in comparing technical solutions used in various brands, including sports versions, an article describing the differences in the construction of engines, brakes, and chassis may be helpful – you can find it here: Audi RS vs other models – what is hidden under the hood and chassis?.