Mercedes W907 W910 Air Vent Duct Guide Footwell Right O/S A9078311500

Right-side passenger footwell air duct for Mercedes W907/W910 is an original ventilation system component responsible for precisely directing airflow in the floor area. Thanks to its factory fit for Mercedes vehicles, this air duct ensures stable mounting, proper airflow, and seamless integration with other HVAC system components. It's a practical solution for collision repairs, replacing damaged ducts, or restoring full cabin heating functionality.

Specifications and technical data

• SKU: A9078311500
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A9078311500
• Substitutable numbers: A9078311500, A 907 831 15 00
• Location on the vehicle: Right
• Part type: Hose
• Category: Hoses, Lines & Pipes

Purpose and Function in the Ventilation System

This floor-level air duct is specifically designed for Mercedes W907/W910 models and operates on the right side of the passenger cabin. Its purpose is to direct air to the footwell area, enhancing passenger thermal comfort and ensuring even distribution of heat or cool air in the front interior.

The component works in conjunction with other ducts, hoses, and pipes in the ventilation system, creating a sealed airflow path from the blower unit to the floor-level vent. A correctly selected and installed duct minimizes pressure loss, reduces airflow noise, and helps maintain stable system performance.

Construction and Fit for Mercedes Bodywork

The original duct design has been developed considering the geometry of the center console and the right side of the dashboard in Mercedes W907/W910 models. The duct's shape, mounting points, and internal cross-section are optimized to:

• ensure a secure fit in factory brackets and guides,
• maintain adequate rigidity while keeping weight low,
• minimize the risk of vibrations and unwanted noises during driving.

This allows for integration with the factory ventilation system without modifications, and the duct works with other ducts, hoses, and pipes as intended by the manufacturer.

Service Application and Benefits of Replacement

Replacing the right-side passenger footwell air duct is recommended when the existing component is cracked, deformed, leaking, or has been mechanically damaged during other dashboard repairs. Using an original duct allows you to:

• restore full airflow efficiency to the floor area,
• reduce windshield fogging through better cabin temperature distribution,
• minimize leaks in unintended areas and localized cold spots.

An used OEM part is a sensible choice for operational repairs – it maintains factory fit and airflow characteristics while reducing costs compared to a new part.

Integration with the "Ducts, Hoses, and Pipes" Category

The right-side passenger footwell air duct belongs to the group of components responsible for air transport within the vehicle, such as air ducts, connecting sections, and various types of pipes that guide medium within the ventilation and heating system. If you are planning a comprehensive repair or upgrade of the interior and ventilation system in your Mercedes and need other parts from this group, such as additional ducts, flexible hose sections, or ventilation system connectors, check the available parts in the Mercedes Ducts, Hoses, and Pipes category.

Operation and Installation Tips

During installation, pay attention to the correct positioning of the duct relative to the factory mounting points and to ensuring a sealed connection with adjacent system components. Careful installation:

• prevents leaks at the connections,
• reduces the risk of rubbing against other components under the dashboard,
• maintains a stable airflow direction to the passenger's feet.

To maintain the efficiency of the ventilation system, it is advisable to periodically check the condition of ducts, hoses, and pipes, especially after major service work on the electrical system or dashboard components.

If you are interested in a broader context of systems related to driving comfort and engine durability, you can find useful information in the article Engine Cooling System – Overheating, Repair, and Used Radiators, which discusses the importance of proper operation of vehicle support systems.