Mercedes-Benz Vito Viano W639 Water Cooling Coolant Radiator A6395010401

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes-Benz Vito Viano W639 Water Cooling Coolant Radiator is an original cooling system component designed for both commercial and passenger models of this series. Thanks to its factory origin, it ensures proper heat dissipation from the engine unit and stable engine operation under a wide range of loads. This used OEM part is a sensible choice for drivers who want to combine proven design with repair cost control.

Specifications and technical data

• SKU: A6395010401
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6395010401
• Substitutable numbers: A6395010401, A 639 501 04 01
• Category: Caps

Purpose and function in the cooling system

The water radiator in the Mercedes Vito and Viano W639 is responsible for effectively transferring heat from the coolant to the environment, which protects the engine from overheating during city driving, highway travel, and under prolonged load. A properly selected cooling system component:

• stabilizes the operating temperature of the engine unit,
• reduces the risk of damage resulting from overheating,
• supports smooth engine operation under various operating conditions,
• allows for maintaining the factory parameters of the cooling system.

Advantages of using an original radiator

Using an original water radiator in the Mercedes Vito/Viano W639 translates into precise fitment with factory mounts and correct cooperation with other system components. In practice, this means:

• easier installation without the need to modify mounts or hoses,
• maintaining the proper flow of coolant,
• compatibility with the factory fan and accessories,
• reducing the risk of leaks resulting from poor fitment.

For vehicles used intensively – both in freight transport and passenger applications – choosing such a component allows you to maintain thermal stability of the engine and predictable performance over a long period of use.

Product characteristics and condition

The offered radiator belongs to the group of wear-and-tear parts that naturally wear out during vehicle operation. The used version allows for a significant reduction in repair costs compared to a new component, while maintaining a design consistent with the manufacturer's factory specifications. This solution is particularly beneficial for:

• post-accident repairs,
• mechanical damage to the front of the vehicle,
• the need for a quick replacement with a limited budget.

By choosing such a component, you gain a part with a known design, tailored to the specific generation of the Mercedes Vito/Viano, which facilitates service and reduces vehicle downtime.

Practical installation and operating tips

When replacing the water radiator in the Mercedes-Benz Vito Viano W639, it is worth paying attention to a few technical aspects that affect the durability of the entire cooling system:

• checking the condition of hoses and clamps before installing the new component,
• checking the system for leaks after filling with fresh coolant,
• bleeding the system according to the service procedure,
• verifying the operation of the fan and temperature sensors after installation.

Such an approach allows you to fully utilize the potential of the installed radiator and reduce the risk of needing further cooling system interventions in the near future.

Related components and additional information

If you are planning a comprehensive repair or upgrade of the front section of your Mercedes and need other elements from the same group, such as covers, trims, or additional moldings, check the available parts in the Mercedes Trims category.

If you are interested in optimizing service costs using used parts and comparing the durability of different engine solutions, it is worth reading the analysis regarding Volkswagen units – you can find a practical comparison in the article Volkswagen 1.9 TDI vs 1.4 TSI – engine evolution and repair costs.