Mercedes W205 M264 Petrol Engine Electric Water Coolant Pump A2642000100

Mercedes W205 M264 Petrol Engine Electric Water Coolant Pump is a precision cooling system component designed for petrol engines, engineered specifically for Mercedes vehicles. The electric control of the pump's operation allows for more efficient engine temperature management, which promotes stable performance and reduces energy loss. This used OEM component is a sensible choice for drivers looking for a technically compatible solution at an attractive price.

Specifications and technical data

• SKU: A2642000100
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2642000100
• Substitutable numbers: A2642000100, A 264 200 01 00
• Fuel type: Petrol
• Category: Water Pumps

Technical characteristics and purpose

The electric water pump in W205 series models with the M264 engine is responsible for the forced circulation of coolant in the petrol engine. Thanks to an electric drive independent of the crankshaft speed, the cooling system can be controlled more flexibly, which helps maintain an optimal operating temperature range under various load conditions and during the warm-up phase.

This type of solution is particularly beneficial in modern petrol engines, where precise temperature management is essential for maintaining efficiency, reducing fuel consumption, and ensuring stable operation of engine accessories. The pump works with the vehicle's factory electronics, allowing for smooth adjustment of flow performance to the current needs of the system.

Benefits of using an electric water pump

The use of an electric water pump in the cooling system provides a number of practical operational benefits:

• the ability to precisely control coolant flow regardless of engine speed,
• more stable maintenance of operating temperature in the petrol engine,
• better energy utilization due to the elimination of a constant mechanical belt drive,
• potential reduction in the risk of overheating in urban conditions and during frequent idling.

For the user, this means more predictable cooling system behavior, which promotes a longer service life for the engine and other components interacting with the thermal system.

Condition, fitment, and installation

The offered pump belongs to the Water pumps category and is a used item, which allows for combining technical fitment with a favorable purchase cost. As a part designed for the specific M264 engine configuration in the W205 body, it ensures proper mounting points and compatibility with the factory wiring and electrical connectors.

Before installation, it is recommended to perform a standard verification of the cooling system's tightness and check the condition of hoses and clamps so that the entire system operates evenly after the pump replacement. A properly selected OEM component reduces the risk of fitment issues and facilitates service work.

Part selection by numbers and technical support

When selecting an electric water pump for a specific vehicle, it is crucial to compare the OEM part number and any interchangeable numbers with the manufacturer's specifications. This ensures that the offered component will work with the given petrol engine version and vehicle electronics.

If you want to deepen your knowledge about diagnostics and component selection in supply systems, an article describing the principles of operation and selecting elements by OEM and VIN numbers may be useful – you can find it here: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. Although it primarily concerns the fuel system, it also covers general principles of part identification that can be applied when verifying the compatibility of other subassemblies.

Cooling system expansion and related parts

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 pumps, coolant circuit elements, or cooling support components, check the available parts in the Mercedes Water pumps category.

For upgrade projects where you use used components, a guide on selecting parts for vehicle modifications may also be an inspiration: The best used parts for tuning your car. It allows you to better plan work on your car, also in the context of making informed choices about used subassemblies.