Mercedes-Benz W169 W245 180CDI OM640 Throttle Body Air Intake Pipe A6400901670

Mercedes-Benz W169 W245 180CDI OM640 Throttle Body Air Intake Pipe is an intake system component designed for A-Class and B-Class models, responsible for the stable delivery of air to the throttle body. Thanks to its factory geometry and precise fit to the engine design, it ensures proper airflow, which translates into smooth engine operation and predictable throttle response. This is a practical solution for users who want to restore the correct operation of the intake system in their Mercedes without the costly replacement of the entire module.

Specifications and technical data

• SKU: A6400901670
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6400901670
• Substitutable numbers: A6400901670, A 640 090 16 70
• Category: Throttle Bodies

Purpose and function in the intake system

The throttle body air intake pipe in Mercedes W169 and W245 models is responsible for a tight and stable connection between the air filtration system and the throttle body. A correctly selected component:

• maintains the appropriate intake channel diameter along its entire length,
• minimizes pressure drops and air turbulence before the throttle body,
• reduces the risk of contaminants entering the system,
• supports the correct operation of the air-fuel mixture control.

By maintaining the factory shape and rigidity, the intake pipe helps maintain stable engine operating parameters, which is important for both dynamics and the refinement of the powertrain.

Benefits of using an original intake pipe

Using an original component from the Throttle Bodies group in a Mercedes allows you to avoid problems typical of aftermarket replacements with imprecise dimensions. In practice, this means:

• secure fitment with the throttle body and air filter housing,
• no need for modifications or adjustments to mounting points,
• preservation of the factory intake routing in the engine bay,
• reduced risk of leaks and unmetered air.

This solution is particularly beneficial when diagnosing problems with fluctuating idle, power loss, or mixture-related errors – restoring intake tightness is one of the fundamental service steps.

Component characteristics and installation

The throttle body air intake pipe in this configuration has been designed specifically for the intake system of A-Class and B-Class models, which facilitates installation at the original mounting points. The hose construction is adapted to operate in the engine bay, where variable temperatures and vibrations occur, which is why maintaining the proper flexibility and shape of the component is essential.

When replacing, it is worth paying attention to:

• the condition of clamps and seals at the ends of the pipe,
• the cleanliness of the throttle body ports and the air filter housing,
• correct positioning of the hose without excessive tension.

A correctly installed intake pipe reduces the risk of future leaks and facilitates further diagnostics of the air supply system.

Condition and use in vehicle service

The offered component comes from dismantling and is intended for users and workshops looking for an economical solution that is consistent with factory specifications. In many cases, replacing the intake pipe alone is sufficient to eliminate problems related to cracks, abrasions, or leaks in the area of the throttle body.

This approach allows for reduced repair costs while maintaining the original design of the intake system, which is important for the long-term reliability of the vehicle.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as throttle bodies, intake ports, or additional air hoses, check the available parts in the Mercedes Throttle Bodies category.

For drivers interested in the wider use of dismantled parts in modern cars, including advanced control systems and electronics, an article describing a practical approach to repairing modules and multimedia systems may be helpful – more information can be found in the material on servicing BMW iDrive systems and electronic modules using dismantled parts.