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 designed for OM640 engine units in A-Class W169 and B-Class W245 models. This component from the Oil coolers and hoses group ensures a tight and stable connection between the oil filler and the rest of the system, which translates into safe engine operation. Choosing an original Mercedes solution allows you to maintain factory assembly standards and reliability.

Specifications and technical data

• SKU: A6400100369
• 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 in the lubrication system

The presented oil filler neck pipe hose operates in a critical area of the OM640 engine lubrication system, responsible for:

• tightly sealing the oil filler channel,
• stable guidance of the lubricating medium towards the engine unit,
• maintaining the correct geometry of the connection with hoses and associated components.

Thanks to a design consistent with factory Mercedes standards, the neck works with other lubrication system components without the need for modifications, which facilitates service and reduces the risk of leaks.

Compatibility with the OM640 engine and W169 / W245 bodies

The element was designed specifically for OM640 engine units used in compact Mercedes A-Class W169 and B-Class W245 models. This means:

• maintaining the factory mounting position relative to the engine cover and oil hoses,
• proper fitment with original mounts and seals,
• no need for adaptation or the use of additional adapters.

Such a fit is particularly important in the lubrication system area, where even minor deviations can lead to leaks or difficult maintenance.

Performance characteristics and assembly advantages

As an element from the Oil coolers and hoses group, the oil filler neck pipe hose works with hoses and components responsible for the circulation and condition of engine oil. Key advantages include:

• original geometry ensuring proper flow and easy service access,
• compatibility with factory oil hoses and accessory components,
• suitability for routine repairs and when replacing worn lubrication system parts.

Selecting an original component allows you to maintain the integrity of the entire system, which is important for both engine durability and service comfort.

Condition, origin, and benefits of choosing a used part

The offered oil filler neck pipe hose is an original Mercedes part from disassembly, which allows you to combine high manufacturing quality with an attractive price. A used OEM component is a particularly beneficial solution when you care about:

• maintaining the factory technical specification of the lubrication system,
• reducing repair costs while using original solutions,
• minimizing the risk of fitment issues typical of aftermarket parts with universal designs.

Before being reintroduced to the offer, elements of this type are standardly verified for assembly suitability, which promotes trouble-free operation after replacement.

Expansion of the lubrication and oil cooling system in Mercedes

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as oil hoses, connectors, or components working with the heat exchanger, check the available parts in the Mercedes oil coolers and hoses category.

To better understand how lubrication and cooling system components work together under high-temperature conditions, it is worth checking our guide: Summer heat vs. cooling system: used radiators and fans as a guarantee of savings. Additionally, if you are interested in a broader perspective on selecting original parts from disassembly for popular models, the following guide may be helpful: The best used car parts – a guide to the most frequently chosen original parts.