Auxiliary Water Pump Mercedes SLK R171 W245 Coolant Circulation Unit A1718350064

Auxiliary Water Pump Mercedes SLK R171 W245 Coolant Circulation Unit is a specialized cooling system component, designed by Mercedes to ensure stable engine operation under various load conditions. This used, original pump from the Water pumps category allows for a technically correct replacement of a worn-out component while maintaining the factory coolant flow characteristics.

Specifications and technical data

• SKU: A1718350064
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1718350064
• Substitutable numbers: A1718350064, A 171 835 00 64
• Category: Water Pumps

Function and application of the auxiliary water pump

The auxiliary water pump in Mercedes SLK R171 and W245 models is responsible for stable support of the coolant circulation beyond the main pump driven by the engine. In practice, this translates into better heat dissipation from the power unit and associated components, which reduces the risk of overheating in urban conditions, during frequent stops, or intensive use.

Using a dedicated, original pump from this group ensures:

• maintenance of proper coolant flow in auxiliary circuits,
• more uniform temperature distribution in the cooling system,
• correct cooperation with the vehicle's factory control electronics.

Benefits of using an original Mercedes pump

The original Mercedes component guarantees a design matched to the specific architecture of the cooling system, ensuring that installation is predictable and compliant with the manufacturer's specifications. The correct geometry of the connectors, flow direction, and operating characteristics are maintained, which is important for the durability of the entire system.

Key advantages include:

• factory fit for the cooling system in Mercedes SLK R171 and W245 vehicles,
• maintenance of flow parameters specified by the manufacturer,
• reduction of the risk of leaks resulting from imprecise fitment of aftermarket replacements.

Product characteristics and condition

The presented auxiliary water pump comes from the Water pumps offer and is a used item, which allows for an economical yet technically correct repair of the cooling system. This type of solution is particularly beneficial when servicing older vehicles, where it is important to maintain reasonable costs while ensuring appropriate part quality.

Thanks to the original design, the pump can be used as a direct replacement for a worn-out component, without the need for system modifications or additional installation adjustments.

Selection by numbers and integration with other components

The element has a dedicated OEM part number and interchangeable numbers, which facilitates precise identification and selection for a specific vehicle configuration. In practice, this means the ability to clearly verify compatibility with a given Mercedes SLK R171 or W245 unit, as well as compare it with other references used in the same model family.

If you want to better understand the principles of selection and diagnostics of pump group elements and other power supply components, an article describing the operation and maintenance of fuel supply systems, including selecting parts by OEM numbers, may be helpful – check the material: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Expanding cooling system service and related components

When replacing the auxiliary water pump, it is worth considering a comprehensive approach to cooling system service – checking hoses, connection tightness, radiator condition, and coolant quality. Such an approach reduces the risk of repeated service interventions and allows you to fully utilize the potential of the installed component.

If you are planning a comprehensive repair or modernization of the cooling system area in your Mercedes and need other elements from the same group, such as pump bodies, housings, or circulation support elements, check the available parts in the Mercedes Water pumps category.

For additional tips on planning service and choosing consumables, you can look for guidance in the driver's manual: TOP 10 most frequently replaced parts in your car, which helps to optimally plan maintenance work without unnecessary costs.