Mercedes W169 W245 OM640 CDI Oil Filler Neck Pipe Hose A6400100369

Mercedes W169 W245 OM640 CDI Oil Filler Neck Pipe Hose is an original lubrication system component, belonging to the Oil coolers and lines category, designed for OM640 CDI diesel engines. The precisely matched geometry of the pipe ensures reliable oil guidance during refilling, which facilitates maintenance and reduces the risk of engine bay contamination. This used OEM component is a sensible choice for drivers who value factory fitment and predictable component performance.

Specifications and technical data

• SKU: A6400100369-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6400100369
• Substitutable numbers: A6400100369, A 640 010 03 69
• Category: Engine Oil Coolers & Lines

Purpose and function of the OM640 CDI oil filler neck pipe

The described oil filler neck pipe has been designed for OM640 CDI diesel engines used in Mercedes A-Class W169 and B-Class W245 models. Its task is to stably guide the oil stream from the filler cap into the engine unit, ensuring that the refilling process is convenient and the risk of spilling oil onto engine accessories is minimized.

Thanks to its factory design, the component maintains appropriate rigidity and temperature resistance, which is important in an engine bay exposed to variable operating conditions. The original pipe geometry also facilitates access during oil refilling without the need to modify adjacent components.

Benefits of using an original Mercedes oil filler neck pipe

Choosing an original oil filler neck pipe for a Mercedes with an OM640 CDI engine allows you to maintain the consistency of the entire lubrication system. In practice, this means:

• secure fitment to factory mounting points in the engine bay,
• proper oil guidance during refilling,
• reduced risk of leaks around the filler area,
• no need for modifications or custom mounts.

The used OEM component is particularly attractive for maintenance repairs when you want to maintain factory build quality while controlling service costs.

Condition, fitment, and service application

The oil filler neck pipe from this offer comes from dismantling, which allows for a favorable price while maintaining the manufacturer's original specifications. This type of component is often replaced when the existing part has suffered mechanical damage, cracking, or has lost its seal due to years of operation.

Before installation, a standard visual inspection and verification of compatibility with your vehicle is recommended, particularly regarding the engine type and accessory layout. As a result, the oil filler neck pipe can be used as a functional replacement for the factory component in the process of repairing or upgrading the lubrication system.

Technical support and additional information

When selecting an oil filler neck pipe for a specific Mercedes configuration, it is worth using catalog data and manufacturer markings to ensure full compatibility with the lubrication system. If in doubt, comparing the shape and mounting method with the part currently installed in the vehicle may be helpful.

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 oil lines, connections, or oil routing elements, check out the available parts in the Mercedes oil coolers and lines category.

To better understand the impact of engine operating temperature on the durability of lubrication and cooling system components, it is worth reading the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, which describes practical aspects of engine operation in high temperatures.

For users interested in a broader context of using original components in vehicles of this brand, the article Mercedes – comfort, prestige, and durability. Why is it worth choosing original used parts? will be helpful, discussing the advantages of using used OEM parts in daily operation.