Mercedes W177 W247 Cooling Radiator Engine Coolant Radiator Unit A2475000203

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W177 W247 Cooling Radiator Engine Coolant Radiator Unit is an original cooling system component from the Water radiators category, designed for Mercedes compact models. This used part ensures factory-standard coolant flow geometry, which promotes stable engine operation and reduces the risk of overheating in demanding road conditions.

Specifications and technical data

• SKU: A2475000203
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2475000203
• Substitutable numbers: A2475000203, A 247 500 02 03
• Category: Radiators

Purpose and role in the cooling system

The water radiator in Mercedes W177 and W247 models is responsible for efficiently dissipating heat from the coolant circulating between the engine block and the heat exchanger. A properly selected radiator stabilizes the engine's operating temperature, which translates into smooth performance, reduced knocking, and lower stress on other system components.

In the case of intensive city or highway driving, the correct choice of radiator is crucial for engine durability. Using an original component from the same model group allows for compliance with the manufacturer's original design specifications.

Technical and design characteristics

The presented radiator belongs to the Water radiators category, meaning it works with a closed coolant system. The design is based on a set of flow channels and a dense network of heat-dissipating fins, which enables efficient thermal exchange while maintaining the compact dimensions typical of modern compact-class bodies.

Original manufacturing ensures:

• a heat exchange surface appropriately matched to the power of units used in the W177 and W247,
• compatibility with factory cooling system hoses and mounts,
• maintenance of the correct direction and speed of coolant flow.

As a result, installation is straightforward, without the need for bodywork modifications or the use of non-factory adapters.

Condition, selection, and practical application

The item is offered in used condition, which allows for cost-effective cooling system repair while maintaining the manufacturer's original specifications. This solution is particularly beneficial for post-accident repairs or replacing a radiator after mechanical damage, where the priority is combining reasonable costs with maintaining correct engine operating parameters.

When selecting a radiator for a specific Mercedes vehicle, it is worth paying attention to:

• compatibility with the body generation (W177 or W247),
• the type of cooling system used in the specific engine version,
• consistency with other components of the coolant flow path.

This approach minimizes the risk of installation issues and ensures stable system operation across the full range of loads.

Benefits of using an original water radiator

Using an original water radiator in a Mercedes provides measurable operational benefits. The factory cooling characteristics are preserved, which promotes even heating and cooling of the engine, and also improves driving comfort through stable interior heating system operation. Additionally, the correct engine operating temperature helps reduce fuel consumption and exhaust emissions.

Choosing a used, original component is a reasonable compromise between cost and quality – especially in modern models where the cooling system is precisely tuned to the vehicle's specific architecture. This allows for effectively restoring system efficiency after a failure, without the need to resort to replacements with uncertain parameters.

Technical support and guide materials

If you are planning a comprehensive repair or upgrade of your Mercedes engine area and need other components from the same group, such as additional heat exchangers, hoses, or expansion tanks, check out the available parts in the Mercedes water radiators category.

To better understand how high temperatures affect cooling system durability and when it is worth opting for used components, check out our guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings. It is a practical addition to your knowledge when planning repairs or preventive cooling system maintenance.