Mercedes W245 Diesel Air Intake Hose Suction Pipe Tube A6400900682

Mercedes W245 Diesel Air Intake Hose Suction Pipe Tube is an original air intake system component designed for diesel engines of this series. It ensures stable airflow to the intake, which promotes smooth engine operation and proper interaction with engine accessories. Thanks to its factory geometry and fitment, this hose is a safe service solution for repairs and replacements within the intake system.

Specifications and technical data

• SKU: A6400900682
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6400900682
• Substitutable numbers: A6400900682, A 640 090 06 82, BG
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the intake system

The air intake hose in the Mercedes W245 diesel model is responsible for the airtight and directional delivery of air to the intake manifold. A correctly selected component reduces pressure drops, minimizes the risk of turbulence, and supports stable combustion parameters in the diesel unit. The proper design of the hose is important for both engine dynamics and refinement, as well as for the correct operation of fuel mixture control systems.

Benefits of using an original hose

Using a hose from the same design family as the factory component allows for maintaining the flow characteristics intended by the manufacturer. In practice, this means:

• secure fitment to mounts and adjacent components in the engine bay,
• maintaining the airtightness of the intake system under typical operating loads,
• reducing the risk of improper air suction from the engine bay,
• preserving the predictable operating parameters of the diesel engine.

For the user, this translates into stable engine operation and a lower risk of issues related to mixture errors or performance drops.

Installation and operational characteristics

The hose belongs to a group of components that are exposed to temperature changes, vibrations, and contact with environmental contaminants during operation. Proper selection of a part with the correct geometry and rigidity reduces stress at connections and decreases the risk of cracks or leaks. The product is intended for installation in the diesel engine intake system, which requires maintaining proper cleanliness during installation and checking the condition of adjacent components, such as the air filter housing or the intake manifold.

A component from this group, even if used, can be an economical and functional service choice in situations where the existing hose has suffered mechanical damage, deformation, or shows signs of material wear.

Application in diesel-powered vehicles

The intake system in diesel units is particularly sensitive to leaks and airflow irregularities. A properly selected suction hose helps maintain:

• correct operating conditions for the turbocharger (if present in the configuration),
• stable air pressure and temperature values in the intake,
• consistency of parameters read by sensors in the supply system.

As a result, the engine control system can operate within the range intended by the manufacturer, which helps maintain proper efficiency and limit undesirable symptoms, such as power loss or rough idling.

Support for restoration and modernization

In the case of vehicles from model years that are increasingly treated as youngtimers, using properly selected used intake components allows for a rational combination of service costs with the preservation of the car's original characteristics. If you want to better plan the refurbishment of your car and learn about modernization scenarios using second-hand parts, it is worth checking out the practical tips included in the article The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years.

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other components from the same group, such as vacuum lines, intake hoses, or breather tubes, check out the available parts in the category Mercedes hoses, pipes and tubes.