Mercedes-Benz E-Class W210 Auxiliary Coolant Water Circulation Pump A0018351164

Mercedes-Benz E-Class W210 Auxiliary Coolant Water Circulation Pump is an original cooling system component responsible for the additional circulation of fluid in the engine and auxiliary equipment. Thanks to its precise design, it ensures stable thermal conditions, which translates into smooth engine operation and proper interaction with other components. As a part of the Water pumps group, it represents a functional service solution for users of E-Class W210 models.

Specifications and technical data

• SKU: A0018351164
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0018351164
• Substitutable numbers: A0018351164, A 001 835 11 64, KZ
• Category: Water Pumps

Function and role in the cooling system

The Mercedes-Benz E-Class W210 Auxiliary Coolant Water Circulation Pump is responsible for stable coolant circulation in the auxiliary circuit, especially under conditions of increased thermal load. It supports the main water pump, improving temperature distribution in the engine and associated components.

Using a dedicated auxiliary pump helps maintain:

• more uniform cooling of the power unit,
• better temperature control across various RPM ranges,
• greater system resistance to overheating in city traffic and during longer stops.

Compatibility and fit for Mercedes-Benz E-Class W210

The presented pump has been designed specifically for the E-Class W210 platform, which means factory-fit for mounts, connectors, and the electrical installation in this model. Using an original Mercedes solution minimizes the risk of installation issues and eliminates the need for system modifications.

This element is part of the cooling system provided by the manufacturer, ensuring structural consistency of the entire system and compliance with engine operating parameters.

Performance characteristics and benefits of use

The Mercedes-Benz E-Class W210 Auxiliary Coolant Water Circulation Pump from the Water pumps group has been developed to ensure:

• stable operation across a wide range of operating temperatures,
• proper fluid flow in the auxiliary circuit,
• consistent cooperation with the vehicle's factory control system.

A properly selected pump helps reduce the risk of localized overheating, which can affect the durability of seals, hoses, and other cooling system components. This is a practical service solution for users who want to maintain performance parameters close to factory specifications.

Condition, origin, and service aspect

The offered Mercedes-Benz E-Class W210 Auxiliary Coolant Water Circulation Pump is a Mercedes brand component in used condition, sourced from dismantling. This type of component is a cost-effective alternative to new parts, while maintaining the original design and purpose. Before installation, it is recommended to perform a standard cooling system leak test and verify the correctness of the electrical connection.

To maximize the potential of used components, it is worth familiarizing yourself with practical tips regarding operation and maintenance – you will find them in the article how to extend the life of used car parts, which describes proven methods for caring for parts sourced from dismantling.

Technical support and additional materials

When selecting components for fluid and fuel systems in vehicles, knowledge of diagnostics and part identification by manufacturer numbers is useful. These issues – in the context of pumps and other components – are discussed in more detail in the guide Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which may also be helpful when planning service work on your car.

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 pumps, fluid circulation support modules, or related mounting components, check the available parts in the Mercedes water pumps category.