Mercedes-Benz A-Class W168 1 Diesel Air Intake Filter Housing Hose Pipe Boot

Mercedes W168 Air Intake Hose Pipe Duct is an original intake system component designed for vehicles with a Diesel engine. It ensures stable air delivery to the rear of the system, promoting smooth engine operation and proper interaction with accessories. This used component from the Hoses, Pipes, and Tubes group is a practical solution for repairs and servicing of the intake system in the Mercedes A-Class W168.

Specifications and technical data

• SKU: A6680940382-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6680940382
• Substitutable numbers: A6680940382, A 668 094 03 82
• Location on the vehicle: Rear
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and Function in the Intake System

The presented air intake duct is responsible for the controlled supply of air to the fuel system in Mercedes W168 diesel engines. Its placement in the rear of the vehicle allows for proper air stream routing while maintaining the correct intake geometry, which reduces pressure drops and contributes to stable engine operation.

A properly selected intake hose is important for:

• maintaining correct airflow in the diesel engine,
• preserving the airtightness of the intake system,
• reducing unwanted turbulence and performance drops,
• maintaining the factory configuration of hose routing in the vehicle's rear compartment and area.

Benefits of Using an Original Hose

Using an original air intake hose in the Mercedes W168 allows for the preservation of factory flow parameters and fit with other system components. The hose's design is adapted to the specifics of diesel engines, which helps maintain proper engine running culture and the correct operation of fuel injection control systems.

Key advantages include:

• precise fit to the body and accessories in the rear of the vehicle,
• compatibility with the diesel fuel system in the Mercedes W168,
• preservation of the original air routing path without the need for modifications,
• suitability for intake system repairs after mechanical or operational damage.

Application in Diesel Engine Vehicles

In diesel systems, proper air supply directly impacts the combustion process, exhaust emissions, and vehicle dynamics. The air intake hose dedicated to the Mercedes W168 diesel-powered vehicle supports:

• stable operating conditions for the turbocharger and intake accessories,
• maintaining the correct air balance across the entire load range,
• reducing the risk of leaks that could disrupt sensor readings and engine control unit operation.

By preserving the original hose geometry, it is possible to effectively restore the initial operating conditions of the intake system after replacing worn or damaged components.

Condition and Installation Suitability

This part is a used component, making it a sensible choice for an economical repair of the intake system in an older vehicle. A used air intake hose allows for restoring correct air routing without the need to invest in a new component, while maintaining the original design and fit for the Mercedes W168.

Replacing the hose is particularly recommended in cases of:

• cracks, abrasions, or deformations of the existing duct,
• intake system leaks,
• modernization or repair of the rear vehicle area after mechanical damage.

Expanding the Intake System in a Mercedes

If you are planning a comprehensive repair or upgrade of the intake system area in your Mercedes and need other parts from the same group, such as additional air ducts, flexible hoses, or rigid guide pipes, check the available parts in the Mercedes Hoses, Pipes, and Tubes category.

For users interested in a broader perspective on the operation and refurbishment of Mercedes diesel engines, an article describing the characteristics of the popular V6 CDI engine, common faults, and the impact of accessories on performance may be helpful – find more information in the material Second Life for the Mercedes OM642 Engine – How Injectors and Turbocharger Restore Power to the 3.0 V6 CDI.