Mercedes W204 W212 W176 W246 Auxiliary Coolant Water Pump A2048350364

Mercedes W204 W212 W176 W246 Auxiliary Water Pump A2048350364 is an original cooling system component from the water pumps category, designed for selected Mercedes compact and mid-size class models. The auxiliary water pump is responsible for the stable circulation of coolant in critical areas of the engine and heating system, which translates to a safe operating temperature for the powertrain and thermal comfort inside the cabin. This is a solution for users seeking a proven, factory component instead of aftermarket alternatives of uncertain origin.

Specifications and technical data

• SKU: A2048350364-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2048350364
• Substitutable numbers: A2048350364, A 204 835 03 64, A2118350028, A 211 835 00 28
• Category: Water Pumps

Purpose and Function of the Auxiliary Water Pump

The auxiliary water pump in Mercedes W204, W212, W176, and W246 models supports the main coolant pump, ensuring proper fluid flow in auxiliary circuits. This is particularly important for:

• maintaining stable engine temperature under heavy load or in city driving,
• ensuring efficient operation of the cabin heater,
• proper functioning of systems cooperating with the cooling circuit (e.g., engine accessory components).

An efficient auxiliary water pump reduces the risk of overheating, improves vehicle comfort, and supports powertrain durability.

Benefits of Using an Original Mercedes Water Pump

Choosing an original pump from the Mercedes-Benz OE group primarily means guaranteed fitment for a specific engine and body reference. The design and operating parameters comply with the manufacturer's factory documentation, which results in:

• correct coolant flow characteristics,
• proper interaction with the vehicle's control electronics,
• stable cooling system pressure under various operating conditions.

This allows for installation without the need for modifications to the system, and the risk of compatibility issues is minimized. This is particularly important in modern Mercedes vehicles, where the cooling system is tightly integrated with engine control systems.

Product Characteristics and Condition

The offered auxiliary water pump belongs to the water pumps category and comes from the Mercedes-Benz OE parts line. The product is classified as used, meaning it has been previously operated but is suitable for further use after appropriate verification. This type of component is a good choice for drivers who want to optimize repair costs while maintaining the factory specification of the part.

Before installation, a standard check of its tightness, the condition of the connection spigots, and the proper operation of the impeller and any electric drive is recommended to ensure the cooling system functions predictably and safely after replacement.

Selection by Numbers and Integration with Vehicle System

The auxiliary water pump has an OEM part number and associated interchangeable numbers, which facilitates precise identification and selection for a specific vehicle configuration. When purchasing, it is advisable to compare the markings with the currently installed component or use the manufacturer's catalog to avoid installation errors.

Due to its factory origin, the pump works with original electrical connectors and coolant hoses, promoting plug-and-play installation within the specific Mercedes model. A correctly selected component allows for the preservation of the cooling system's operating characteristics as designed by the manufacturer.

Technical Support and Additional Materials

If you want to better understand the relationships between pumps, injectors, and other fuel system components, an article describing diagnostics and parts selection by OEM numbers and VIN will be helpful – check out the guide “Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair” which clarifies many practical issues related to the operation of systems in modern cars. guide “Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair”, which clarifies many practical issues related to the operation of systems in modern cars.

If you are looking for other Mercedes water pumps for your car, check out the Mercedes water pumps available in our store to select the part that best fits your specific model and engine version.