Oil Pipe Mercedes W205 W213 OM654 Diesel Feed Line Cooler Coolant A6542030700

Oil Pipe Mercedes W205 W213 OM654 Diesel Feed Line Cooler Coolant is an original lubrication system component, responsible for precisely delivering oil to the cooler and working in conjunction with the cooling system. Thanks to its factory geometry and precise fit for the OM654 unit, it ensures stable operating parameters for the diesel engine, supporting its durability and operational safety.

Specifications and technical data

• SKU: A6542030700
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6542030700
• Substitutable numbers: A6542030700, A 654 203 07 00
• Fuel type: Diesel
• Category: Engine Oil Coolers & Lines

Application in the OM654 engine and its role in the oil cooling system

The presented oil pipe is designed for OM654 diesel units installed in Mercedes C-Class W205 and E-Class W213 models. The component operates in the area where the lubrication system connects with the oil cooler and cooling system, which allows for maintaining a stable operating oil temperature across a wide range of loads.

Thanks to its properly selected internal diameter and shape, the pipe ensures:

• controlled oil flow towards the cooler,
• proper venting of the supply section,
• consistent operation with the liquid cooling system in the diesel engine.

This solution supports the thermal stability of the power unit, which has a direct impact on the service life of the oil, turbocharger, and cooperating components.

Construction of the oil pipe and fitment for Mercedes W205 / W213

The pipe belongs to the Oil coolers and lines category, which means it has been designed to operate under conditions of elevated temperature and pressure. The factory-formed sections and mounting points allow for correct routing of the pipe in the engine bay, while maintaining the required distances from hot components and moving parts.

Key structural advantages include:

• dedicated fitment to the OM654 engine architecture in W205 and W213 bodies,
• preservation of the original routing path in the engine bay,
• compatibility with the oil and liquid cooling system in the diesel engine.

This combination of features allows this pipe to be treated as a safe service solution when repairing the lubrication and oil cooling systems in modern Mercedes diesel units.

Benefits of using an original oil pipe

In the case of diesel engines such as the OM654, proper oil cooling is essential for protecting components operating under high loads. Using an original oil pipe ensures:

• maintenance of factory oil flow parameters through the cooler,
• reduced risk of leaks at connections,
• consistency with the factory design of the cooling and lubrication system.

As a result, it is possible to effectively support the stable operation of the diesel engine in urban and highway conditions, as well as during towing or driving under higher thermal loads.

Component condition and installation aspects

The offered oil pipe is a used component, which allows for an economical repair of the lubrication system while maintaining the manufacturer's original specifications. Before installation, it is recommended to perform a standard inspection of the connection sockets, sealing surfaces, and the patency of the oil channel to ensure proper operation after installation.

In workshop practice, this type of pipe is installed during work on the oil cooling system, oil cooler replacement, or during broader servicing of the OM654 unit. Proper routing of the pipe and maintaining factory mounting points is important for operational safety and resistance to vibrations and thermal loads.

System expansion and additional components from the same group

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 oil lines, return sections, or oil cooler connection elements, check the available parts in the Mercedes oil coolers and lines category.

To better understand how the cooling system affects engine durability and the importance of components cooperating with the oil cooler, it is worth checking out our guide: Summer heat vs. cooling system: used radiators and fans as a guarantee of savings. You will find practical tips there regarding the operation and maintenance of cooling systems in vehicles with diesel engines.