Mercedes-Benz M-Class ML W164 Air Duct Hose Line Pipe Rear Left N/S A1648311146

Mercedes-Benz M-Class ML W164 Air Duct Hose Line Pipe Rear Left N/S is an original air duct system component designed for installation in the rear section of the vehicle body on the driver's side. Thanks to its factory-fit design for the W164 model, it ensures stable airflow guidance and proper integration with other body components. This is a practical solution for users who want to restore the efficiency and correct geometry of the duct system without modifying the vehicle's structure.

Specifications and technical data

• SKU: A1648311146
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1648311146
• Substitutable numbers: A1648311146, A 164 831 11 46
• Location on the vehicle: Rear, Left
• Category: Hoses, Lines & Pipes

Purpose and function of the duct

The offered duct belongs to the group of components responsible for directed airflow in the rear part of the vehicle. Its placement on the rear left side of the body allows for precise alignment with factory mounting points and maintains the correct routing of the lines. As a result, the system remains airtight, and the airflow is controlled and consistent with the manufacturer's specifications.

The component has been designed specifically for the Mercedes M-Class W164 generation structure, which translates into:

• proper shaping for the body geometry,
• compatibility with factory brackets and mounts,
• maintenance of the correct airflow direction in the rear zone of the vehicle.

Benefits of using an original duct

Using an original air duct in the rear left section of the body helps avoid problems typical of aftermarket replacements with universal geometry. Precise fitment minimizes the risk of stress, rubbing against other components, and leaks. This is particularly important in vehicles where the system of lines, hoses, and pipes interacts with body parts, suspension, or aerodynamic shields.

For the user, this means:

• stable operation of the duct system in the rear part of the vehicle,
• reduction of unwanted vibrations and noise in the area of the left rear wheel arch,
• easier installation due to the retention of the factory shape and mounting points.

Installation characteristics and condition of the component

The duct is a component removed from a vehicle, which allows for the preservation of original geometry and compliance with the manufacturer's factory standards. Due to its location in the rear left zone, correct routing relative to the body and existing brackets is crucial during installation. In practice, this translates into assembly without the need for structural modifications, which is beneficial for both professional workshops and users servicing their vehicles themselves.

Choosing this solution is particularly attractive for owners of the Mercedes M-Class W164 who want to maintain the integrity of the duct system with other body components while keeping a favorable cost-to-functionality ratio.

Product group – Mercedes lines, hoses, and pipes

The described component belongs to the Lines, hoses, and pipes group, which are components responsible for conveying media and air in the vehicle. If you are planning a comprehensive repair or upgrade of the rear body area in your Mercedes and need other elements from the same group, such as additional lines, hoses, or pipes for air or media, check the available parts in the Mercedes lines, hoses, and pipes category.

Who is this component for and how to use it

The rear left air duct is suitable for both standard repairs after mechanical damage and for restoring the completeness of the system after bodywork or vehicle modifications. It is a good solution for workshops specializing in the Mercedes brand, as well as for users who take care of their car's technical condition themselves.

If you are considering a wider range of vehicle modifications and want to combine repairs with improving performance or functionality using aftermarket components, it is worth checking the advice in the article Tuning with used parts – how to gain performance without spending a fortune, which discusses a practical approach to selecting used components while maintaining safety and reliability.