Mercedes-Benz A B Class W169 W245 Air Duct Plastic Pipe Left N/S A1698310246

Mercedes-Benz A B Class W169 W245 Air Duct Plastic Pipe Left N/S is an original ventilation system component designed for installation on the left side of the cabin in A-Class and B-Class models. Thanks to its factory-spec fitment, it ensures proper airflow guidance and a stable connection with other ventilation ducts, which translates into increased comfort. This is a practical solution for replacing a damaged or leaking air duct in your Mercedes.

Specifications and technical data

• SKU: A1698310246
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1698310246
• Substitutable numbers: A1698310246, A 1698310246, A 169 831 02 46, AS
• Location on the vehicle: Left
• Category: Other Air Conditioning & Heating

Purpose and function of the air duct

The left air duct in Mercedes W169 and W245 models is responsible for efficiently distributing air from the ventilation system to the appropriate zones of the vehicle interior. Its precise shape and fitment to the dashboard structure and side cabin elements minimize flow losses, noise, and the risk of leaks.

This component is particularly important when symptoms such as uneven ventilation on the left side, weaker airflow, or incorrect air direction towards the windshield and side zones occur. Replacing the duct with an original component allows you to restore the ventilation system to its factory operating parameters.

Vehicle fitment and installation

The duct has been designed specifically for installation on the left side of the vehicle, taking into account the interior geometry of W169 and W245 models. The appropriate shape of the connectors and the duct routing facilitate correct seating in the factory mounting points, which minimizes the risk of stress and subsequent looseness.

During installation, it is worth paying attention to:

• correct positioning of the duct relative to adjacent dashboard elements and side panels,
• thorough sealing of connections with other ventilation ducts,
• checking that no part is twisted or excessively compressed.

This approach allows for maintaining stable airflow and reducing unwanted noises resulting from vibrations of the ventilation system components.

Characteristics of the used component

The offered left air duct is a used part, which in practice means an opportunity for an economical repair while maintaining the original design and fitment. For this type of component, it is crucial that they retain their mechanical function – shape, rigidity, and mounting points – which enables seamless integration with the existing ventilation system.

Choosing an original, used duct instead of a replacement allows you to maintain the structural consistency of the interior and reduce the risk of compatibility issues that may arise with parts having different profiles or manufacturing tolerances.

Support in selection and expanding technical knowledge

When planning service work within the ventilation and air conditioning system, it is worth paying attention to the general condition of the ducts, seals, and airflow control elements. A consistent approach to inspecting these components allows you to avoid re-disassembling the interior in the near future.

If you are interested in a broader context of structural differences between standard and sports versions in modern cars, including the impact of cooling, brake, and chassis systems on the car's character, check out the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses these issues in an accessible way.

Related components and further system expansion

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

This allows you to verify the condition of the entire airflow path in one stage, which promotes maintaining even ventilation operation, proper cabin circulation, and passenger comfort.