Mercedes R172 W204 C207 Electric Auxiliary Water Circulation Pump A2048350264

The Mercedes R172 W204 C207 Auxiliary Water Pump A2048350264 is an original cooling system component from the Water Pumps group, designed for precise coolant circulation in Mercedes vehicles. The auxiliary water pump stabilizes the operating temperature of the engine and associated components, which translates to smoother operation and better protection of the powertrain.

Specifications and technical data

• SKU: A2048350264-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2048350264
• Substitutable numbers: A2048350264, A 204 835 02 64, 3130591163, 3 130 591 163
• Part type: Engine Water Pump
• Category: Water Pumps

Function and Application of the Auxiliary Water Pump

The auxiliary water pump in Mercedes R172, W204, and C207 models assists the main cooling circuit, especially under increased thermal load conditions. It maintains coolant flow even when the conventional mechanical pump no longer provides optimal circulation, helping to reduce the risk of overheating engine components and accessories.

This solution is particularly beneficial in modern powertrains, where stable operating temperature affects running smoothness, fuel consumption, and component durability. A properly selected auxiliary water pump also supports the operation of cooling-related systems, ensuring even heat distribution and predictable vehicle behavior.

Benefits of Using an Original Mercedes Pump

Using an original auxiliary water pump in a Mercedes offers a range of practical benefits:

• maintaining factory coolant flow parameters,
• compatibility with the cooling system design of the specific model,
• proper fit of connections and mountings,
• predictable performance under typical operating conditions.

This ensures a streamlined installation process, without the need for modifications to the system or the use of adapters. An original pump from the Water Pumps group is designed with Mercedes' specific engineering solutions in mind, facilitating servicing and subsequent diagnostics.

Condition and Suitability for Further Operation

The offered auxiliary water pump is a used part, allowing for an economical replacement while maintaining compatibility with the original cooling system. This type of part is a good choice when the existing pump shows signs of wear, such as reduced coolant circulation efficiency or improper operation within certain temperature ranges.

When selecting a pump, it is advisable to pay attention to compatibility with manufacturer markings and interchangeable part numbers – this makes it easier to match it to a specific engine version and vehicle year. A properly selected used pump can effectively restore correct coolant circulation and reduce the risk of costly overheating-related failures.

Selection by Numbers and Integration with the Vehicle System

The Mercedes auxiliary water pump is linked to specific OEM part numbers and interchangeable part numbers, allowing for precise selection based on the particular model and equipment version. In practice, this means the possibility of verifying compatibility based on service documentation or markings on the old pump, without the need to interfere with the electrical system or the hose system.

If you have doubts about selecting components by OEM number or VIN, a specialized guide on fuel systems and part selection by manufacturer markings may be helpful – you can find it in the article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, which discusses practical principles for identifying parts in modern vehicles.

Expanding Cooling System Service in Mercedes

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other parts from the same group, such as pump housings, impellers, or connection housings, check the available parts in the Mercedes Water Pumps category.

Combining the replacement of the auxiliary water pump with an inspection of other cooling system components helps reduce service downtime and better plan vehicle maintenance. This ensures the cooling system operates more predictably, and the engine is provided with stable operating conditions across a wide range of loads.