Water Pump Mercedes C118 W177 W205 W213 W247 Auxiliary Coolant Pump A0005003500

Water Pump Mercedes C118 W177 W205 W213 W247 Auxiliary Coolant Pump is a cooling system component designed as an auxiliary coolant pump, responsible for providing stable support for coolant circulation in modern Mercedes engines. Thanks to its precise OEM design, it ensures predictable thermal system performance, which translates into safe operation of the engine and its associated components.

Specifications and technical data

• SKU: A0005003500-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0005003500
• Substitutable numbers: A0005003500, A 000 500 35 00, 0392023408, 0 392 023 408
• Category: Water Pumps

Purpose and function in the cooling system

The described auxiliary coolant pump has been developed specifically for modern Mercedes models from the C118, W177, W205, W213, and W247 series. Its task is to support the main coolant circulation, especially under conditions of increased thermal load, during idling, or in complex system configurations (e.g., with additional heat exchangers).

Using a dedicated auxiliary pump allows for:

• maintaining a stable operating temperature of the engine,
• more efficient heat dissipation from critical components,
• more uniform operation of the entire cooling system in various road conditions.

Construction and vehicle fitment

The pump belongs to the Water Pumps category and is factory-designed to meet the specific construction requirements of Mercedes. This means properly selected port geometry, mounting points, and flow characteristics, which facilitates installation in the engine bay and ensures correct interaction with other cooling system components.

Thanks to the use of the original OEM design:

• factory flow and fluid pressure parameters are maintained,
• the risk of leaks resulting from poor fitment is minimized,
• installation proceeds in a manner similar to the manufacturer's service procedures.

Condition, verification, and benefits of use

The item is offered in used condition, which allows for an economical replacement while maintaining the characteristics of an original Mercedes part. This type of solution is particularly beneficial for repairs where combining OEM quality with reasonable service costs is key. As a component operating in a demanding thermal environment, the auxiliary pump should be selected with consideration for compatibility with the cooling system of the specific model.

The main advantages of using an original used auxiliary pump include:

• maintaining the factory operating characteristics of the cooling system,
• better compatibility with the vehicle's electronics and control systems,
• reducing the risk of problems resulting from the use of replacements with uncertain parameters.

Selection by part numbers and technical support

To ensure full compatibility with a specific engine version and model year, it is recommended to select the pump based on the OEM part number or interchangeable numbers and vehicle data. This approach reduces the risk of installing a component with different flow characteristics or a different mounting method. In case of doubt, it is worth verifying compatibility with service documentation or a specialized parts catalog.

For users interested in a broader look at diagnostics and the selection of power supply components and those cooperating with engine systems, an article describing the principles of operation and regeneration of fuel components may be useful – you can find it here: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Expansion of service and parts for Mercedes

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional coolant pumps, circulation support modules, or components cooperating with the cooling system, check the available parts in the Mercedes Water Pumps category.

More information on why original used Mercedes components are a reasonable choice in terms of durability and operating costs can be found in the guide: Mercedes – comfort, prestige, and durability. Why is it worth choosing original used parts?.