Mercedes W169 W245 OM640 Diesel Engine Oil Sump Pan A6400141002

Mercedes W169 W245 OM640 Diesel Engine Oil Sump Pan is an original lubrication system component designed for Mercedes diesel engines, ensuring stable operating conditions for the power unit. Thanks to its factory geometry and precise fit for the OM640 design, the oil sump works effectively with the oil system, supporting uniform lubrication and heat dissipation. It is a practical solution for users looking to restore proper sealing and functionality of the lubrication system in their compact class vehicles.

Specifications and technical data

• SKU: A6400101013
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6400141002
• Substitutable numbers: A6400101013, A 640 010 10 13, A6400141002, A 640 014 10 02, KZ
• Fuel type: Diesel
• Category: Oil Sumps

Application and compatibility with the OM640 Diesel engine

The oil sump is dedicated to Diesel power units from the OM640 family used in Mercedes W169 and W245 models. The body structure has been designed for proper oil flow within the sump, which is important both during cold starts and during long-term driving under various load conditions. The appropriately shaped bottom and working space of the sump promote stable oil suction by the pump, reducing the risk of lubrication interruptions during dynamic maneuvers.

Construction and function in the lubrication system

The component plays a key role as the lower part of the engine housing, creating a closed space for the operating oil. The properly selected working volume of the sump supports the maintenance of the correct oil level, and the precisely machined mating surfaces facilitate a tight connection with the engine block using an appropriate gasket or sealant. This reduces the risk of leaks that could lead to a drop in oil level and accelerated wear of cooperating components.

The original geometry of the oil sump also promotes effective heat dissipation from the oil, which is important for the durability of a diesel engine. A properly functioning sump supports stable oil pressure, which translates into uniform lubrication of the bearings, crankshaft, timing system, and other moving parts.

Benefits of using an original Mercedes oil sump

Using a factory oil sump in the OM640 engine provides a number of practical operational benefits:

• Precise fit to the engine block – reduces assembly problems and minimizes the risk of leaks at the interface with the power unit.
• Replicated factory internal geometry – supports proper oil circulation and stable lubrication under typical road conditions.
• Compatibility with lubrication system accessories – facilitates the installation of sensors and other components provided for a given engine variant.
• Possibility to restore proper system operation after mechanical damage to the old sump, e.g., after hitting a road obstacle.

The product comes from the Oil sumps group, which means it has been designed to work in the demanding thermal and mechanical environment typical of the lower part of the power unit.

Condition, assembly, and service recommendations

The offered oil sump is a used component, which in practice means that before installation, it is recommended to thoroughly clean the interior and exterior and check the mating surfaces for any mechanical damage. During assembly, it is worth paying attention to:

• proper preparation of the engine block and sump surfaces (degreasing, removal of old gasket residues),
• use of a new gasket or appropriate sealant in accordance with the manufacturer's service procedure,
• even tightening of the mounting bolts according to the recommended torque,
• leak check after the first start-up and a short test drive.

This approach allows you to fully utilize the potential of the part and reduce the risk of needing to re-intervene in the lubrication system shortly after the repair.

Expanding knowledge and selecting other components

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 additional sumps, mounting elements, or covers related to the oil system, check the available parts in the Mercedes Oil sumps category.

For those interested in a broader context of technical solutions used by this brand, including the evolution of power unit designs and related components, an article describing the development of flagship models may be helpful – you can find it here: Evolution of the Mercedes S-Class and an overview of key Mercedes auto parts.