EGR Exhaust Cooler Mercedes W169 W245 Heat Exchanger OM640 Diesel A6401400975

The Mercedes W169 W245 OM640 EGR Exhaust Cooler A6401400975 is an exhaust gas recirculation component designed for diesel engines, which works with the cooling system to stabilize the temperature of exhaust gases directed to the EGR valve. A properly selected EGR exhaust cooler supports efficient engine operation, reduces thermal load, and helps maintain correct emission parameters in diesel engines.

Specifications and technical data

• SKU: A6401400975
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6401400975
• Substitutable numbers: A6401400975, A 640 140 09 75
• Fuel type: Diesel
• Category: Coolant Hoses

Purpose and Role in the Cooling System

The EGR exhaust cooler in Mercedes W169 A-Class and W245 B-Class models with the OM640 engine is a component that works with the liquid cooling system. Its function is to lower the temperature of exhaust gases returned to the intake manifold, allowing for more stable diesel engine operation and reducing thermal stress on components.

Through integration with cooling system hoses and pipes, the EGR exhaust cooler utilizes the engine's coolant to effectively dissipate heat from the exhaust gas stream. A properly functioning component of this type helps reduce the risk of overheating, supports the maintenance of uniform operating temperatures, and promotes correct EGR system operation in diesel engines.

Benefits of Using an Original Mercedes Part

Using an original EGR exhaust cooler dedicated to the OM640 unit ensures:

• Factory Fitment to the cooling and exhaust gas recirculation system in Mercedes W169 and W245 vehicles, without the need for modifications.
• Diesel Engine Compatibility, which translates to predictable EGR system behavior across the full range of loads.
• Stabilization of Exhaust Gas Temperature directed to the EGR valve, which promotes the maintenance of proper engine operation.
• Better Integration with the Cooling System, thanks to a design adapted to factory hoses and pipes.

Choosing an original component from this category is particularly important in diesel engines, where the exhaust gas recirculation system directly affects running smoothness, fuel consumption, and thermal loads.

Product Characteristics and Application in Diesel Engines

The presented EGR exhaust cooler is designed for diesel-powered engines where the EGR system operates at high temperatures and requires effective exhaust gas cooling. A properly selected component:

• Supports the Maintenance of Stable Diesel Engine Operating Temperature, which is important for long-term operation in urban and non-urban driving.
• Reduces Local Overheating of intake and exhaust system components, which can affect their durability.
• Facilitates the Maintenance of Correct EGR System Operating Parameters, which promotes the retention of predictable performance and response to load.

Due to the nature of the exhaust gas recirculation system's operation, selecting the correct EGR cooler is crucial for maintaining a balance between exhaust gas temperature, engine efficiency, and cooling system load.

Condition, Installation, and Service Aspects

The offered EGR exhaust cooler is a component from the cooling system hoses and pipes category, prepared for use in Mercedes vehicles with the OM640 engine. Before installation, standard service procedures are recommended, including checking the cooling system for leaks, verifying the condition of hoses, and proper bleeding after filling with coolant.

Replacement of the EGR exhaust cooler is particularly recommended in cases of symptoms such as reduced EGR system performance, engine operating temperature issues, or leaks at the connections to the cooling system. A correctly selected and installed component helps restore stable operating conditions for the engine.

More About the Cooling System and Related Parts

If you are looking for other components from the Mercedes Cooling System Hoses and Pipes category, check out our offer, where you will also find Mercedes cooling system hoses and pipes suitable for various models of this brand. This allows you to take a comprehensive approach to servicing the cooling and exhaust gas recirculation system in your vehicle.

To better understand how high ambient temperatures affect cooling system operation and why appropriately selected components – including coolers, hoses, and fans – are so important, consult the guide Summer Heat vs. Cooling System: Used Coolers and Fans Guarantee Savings, where you will find practical tips on operating and selecting used cooling system components.