Mercedes W213 OM654 Heat Exchanger Engine Oil Cooler A6541800265

Mercedes W213 OM654 Heat Exchanger Engine Oil Cooler is a lubrication system component designed for OM654 series diesel engines paired with an automatic transmission. It is responsible for stabilizing oil temperature, which translates into safe engine operation, reduced component wear, and the maintenance of proper lubrication parameters across a wide range of loads. This used OEM component is a sensible choice for drivers looking for a technically matched solution at an attractive price.

Specifications and technical data

• SKU: A6541800265
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6541800265
• Substitutable numbers: A6541800265, A 654 180 02 65
• Gearbox type: Automatic
• Category: Oil Coolers & Lines

Purpose and role in the lubrication system

The oil cooler in the Mercedes W213 model with an OM654 engine paired with an automatic transmission is responsible for dissipating excess heat from the engine oil. Maintaining a stable temperature of the lubricating medium:

• reduces oil degradation under high thermal loads,
• supports uniform lubrication of moving parts,
• reduces the risk of overheating in city and highway driving conditions,
• positively affects the engine's operating culture.

As a result, the lubrication system maintains predictable parameters, which is important both during calm driving and during dynamic acceleration.

Compatibility with automatic transmission

The presented cooler is intended for use with an automatic transmission, which is important when selecting spare parts for modern Mercedes designs. Proper matching to the drivetrain configuration:

• facilitates installation without the need for system modifications,
• ensures compatibility with the factory routing of oil lines,
• minimizes the risk of leaks and pressure drops in the system.

Selecting a component compatible with the transmission type is crucial for maintaining proper engine-accessory cooperation and for the long-term, stable operation of the entire drivetrain.

Benefits of using an original oil cooler

Choosing a used oil cooler from the Oil coolers and lines group allows you to combine cost control with the preservation of factory operating characteristics. The main advantages of such a solution include:

• preservation of the original oil and coolant flow geometry,
• fitment with mounting points and connection points in the W213 body,
• no need to adapt additional mounting elements,
• maintenance of predictable lubrication system behavior under various operating conditions.

For users who value the technical consistency of the vehicle, this is a solution that allows for maintaining parameters close to factory specifications while simultaneously reducing expenses.

Condition, verification, and service application

The item comes from disassembly and is intended for reinstallation in vehicles equipped with the OM654 unit and an automatic transmission. A used oil cooler is a good solution in situations where:

• replacement is necessary due to mechanical damage or corrosion of the existing component,
• symptoms of oil overheating or reduced cooling efficiency appear,
• post-accident repairs are being carried out in the front area of the vehicle.

Before installation, a standard service procedure is recommended, including checking the system for leaks, replacing the cooling medium, and verifying the condition of the oil lines.

Technical support and guide materials

During periods of high temperatures, it is particularly important to maintain the efficiency of the cooling and lubrication system. To better understand the impact of summer conditions on engine operation and the possibilities for savings when using components from disassembly, it is worth reading the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, which discusses the practical aspects of operating and selecting used cooling elements.

If you are planning a comprehensive repair or upgrade of the lubrication and oil cooling area in your Mercedes and need other elements from the same group, such as additional coolers, oil lines, or oil cooling system connectors, check the available parts in the Mercedes oil coolers and lines category.