AIr Vent Mercedes Vito W639 Roof Air Duct Nozzle Rear Left A6398300754

AIr Vent Mercedes Vito W639 Roof Air Duct Nozzle Rear Left is an original ventilation system component designed for installation in the rear part of the cabin on the driver's side. Thanks to its factory-fit design for the Vito W639 body, it ensures a consistent interior look and precise airflow direction for passengers in the rear rows. This is a practical solution for users who want to restore full functionality to their roof air vents after repairs or interior modifications.

Specifications and technical data

• SKU: A6398300754
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6398300754
• Substitutable numbers: A6398300754, A 639 830 07 54
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Purpose and function of the component

The presented roof air vent is dedicated to the Mercedes Vito W639 model and operates in the rear part of the vehicle on the left side. It is responsible for distributing air from the roof duct into the passenger compartment, which improves thermal comfort for those traveling in the back. The nozzle design allows for directing the airflow, making it easy to adjust the vent to the individual needs of the users.

The component belongs to the Doors and door panels category, but in practice, it works with the side trim and headliner in the rear of the body, integrating with the factory ventilation system. This is particularly important in vehicles used for passenger transport, where even air distribution has a direct impact on ride comfort.

Construction and body fitment

The roof air vent has been designed as part of the air duct system running along the vehicle's roof. Its shape and mounting points are adapted to the geometry of the rear left body section, allowing for stable installation in the original mounting points. As a result, after installation, the component creates a seamless surface with the interior finish, without unsightly gaps or material stress.

Its placement in the rear left zone of the vehicle promotes even air distribution between both sides of the cabin. Proper seating of the vent in the headliner or side panel minimizes airflow noise and reduces the risk of vibrations while driving.

Benefits of using an original air vent

Using an original roof air vent in a Mercedes Vito W639 provides a number of practical benefits:

• maintaining the factory look and stylistic consistency of the interior,
• secure fitment to existing air ducts and mounting points,
• stable operation of the ventilation system in the rear of the cabin,
• reduced risk of leaks and uncontrolled air escape outside the vent zone.

For users who intensively utilize the Vito in passenger or mixed-use versions, restoring a functional roof air vent translates into higher passenger comfort on long journeys and better utilization of the factory ventilation system's capabilities.

Condition and service application

The component comes from disassembly and is intended for reinstallation in a vehicle where damage or missing parts have occurred within the roof vents. It is suitable both for standard replacement of a damaged nozzle and for interior reconstruction after a collision or body modifications. Choosing a used component allows for maintaining compliance with the vehicle's original specifications while optimizing repair costs.

Expanding side zone upgrades

If you are planning a comprehensive repair or upgrade of the side body zone in your Mercedes and need other elements from the same group, such as panels, reinforcements, or door components, check out the available parts in the Mercedes Doors and door panels category.

To better take care of your vehicle's system operating conditions during the summer season, it is also worth checking out our guide on cooling system maintenance and choosing used components – you can find the details in the article Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.