Mercedes-Benz E-Class W210 Engine Cooling Coolant Radiator A2105007103

Mercedes-Benz E-Class W210 Engine Cooling Coolant Radiator is an original cooling system component designed for Mercedes vehicles with a diesel engine. Thanks to its factory-fit for the specific W210 E-Class generation, it ensures stable heat dissipation from the engine and supports the safe operation of the powertrain. Its positioning in the rear part of the vehicle allows for specific coolant circulation routing in accordance with the design of this model.

Specifications and technical data

• SKU: A2105007103
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2105007103
• Substitutable numbers: A2105007103, A 210 500 71 03, BG
• Location on the vehicle: Rear
• Category: Radiators

Purpose and compatibility

The presented radiator is a component from the Water Radiators category, designed specifically for cooling systems in the Mercedes E-Class W210 with a diesel engine. The design, adapted to the architecture of this model, allows for proper connection to the existing coolant circuit without the need for installation modifications or additional adapters.

The positioning on the vehicle specified as the rear means that the component works with the system as intended by the manufacturer, taking into account hose routing, mounting placement, and airflow in the rear area of the bodywork.

Technical and functional characteristics

The water radiator in the version dedicated to the diesel E-Class W210 is responsible for effective heat dissipation from the coolant, which is particularly important under higher loads typical for diesel units. Properly selected fin density and flow channel design ensure a stable engine operating temperature across a wide range of road conditions.

The original origin from the Mercedes group means maintaining factory manufacturing standards, connection geometry, and mounting points. As a result, installation is predictable, and the risk of leaks or improper fitment with other cooling system components is minimized.

Condition, installation, and service application

The item is offered as used, which allows for an economical repair of the cooling system while maintaining the manufacturer's original specifications. This type of solution is particularly beneficial when servicing older W210 E-Class models, where both repair costs and the compatibility of the part with the vehicle's factory design are important.

The radiator is intended for direct replacement in place of the factory component – after removing the old unit, it is possible to seat the component in the existing brackets, connect the coolant hoses, and the remaining system elements. A correctly selected radiator helps restore stable engine operation, reduce the risk of overheating, and improve the overall reliability of the vehicle.

Benefits of using an original water radiator

Using a dedicated water radiator in a Mercedes E-Class W210 with a diesel engine brings a number of practical benefits:

• preservation of the factory cooling characteristics of the powertrain,
• secure fitment to the mounting system and hoses in the rear part of the vehicle,
• reduction of the risk of engine overheating in urban and highway conditions,
• possibility of economical repair through the use of a used part with original specifications.

For users who want to better understand the impact of temperature on the cooling system and the cost-effectiveness of using second-hand components, we have prepared a practical guide – more information can be found in the article Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.

Support for selection and cooling system expansion

If you are planning a comprehensive repair or upgrade of the cooling system area in your Mercedes and need other elements from the same group, such as additional radiators, heat exchangers, or related fluid modules, check the available parts in the Mercedes Water Radiators category.

If you are considering whether new or used components would be a better choice in your case, comparing both solutions in terms of costs and durability may be helpful – we discuss this in more detail in the material Car parts – new or used? We compare costs, quality, and durability.