Filler Neck Mercedes W211 CLS W219 Washer Bottle Tube Pipe Cap A2118600164

Mercedes W211 / CLS W219 Washer Fluid Filler Neck and Hose is an original component of the washer system, designed for E-Class and CLS models. Thanks to its factory geometry, it ensures reliable fluid guidance from the filler to the tank and a tight seal of the system, which limits evaporation and uncontrolled leaks. This is a practical solution for users who want to restore the functionality of their Mercedes' washer system in a technically correct manner.

Specifications and technical data

• SKU: A2118600164-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2118600164
• Substitutable numbers: A2118600164, A 211 860 01 64, KD
• Category: Washer Pumps, Reservoirs & Nozzles

Purpose and Function in the Washer System

The washer fluid filler neck component is responsible for safe and convenient fluid replenishment and its stable delivery to the tank. For Mercedes E-Class W211 and CLS W219 models, a correctly selected filler hose and cap:

• ensure system tightness during driving and when stationary,
• minimize the risk of fluid splashing in the engine bay,
• maintain correct hose routing according to factory specifications,
• facilitate service and fluid level checks.

By retaining its original design, this component works with other parts in the Washer Tanks, Pumps, and Nozzles group, contributing to the stable operation of the entire system.

Construction and Fitment for Mercedes W211 / CLS W219

The offered hose with filler cap has been specifically designed for the body and engine bay architecture of Mercedes E-Class W211 and CLS W219. This means:

• factory mounting and hose routing points,
• appropriately selected length and shape of the filler tube,
• a cap that fits the washer fluid tank socket,
• compatibility with the original tank and accessories.

Such a fit minimizes the need for modifications, and installation can be carried out in an organized manner, in accordance with the manufacturer's service documentation.

Condition, Origin, and Benefits of Choosing a Used Part

The product comes from the Mercedes line and is an original part, which is important for maintaining the technical consistency of the vehicle. As a used part, it offers a reasonable compromise between cost and quality – especially for components in the Washer Tanks, Pumps, and Nozzles group, where correct fit and sealing are crucial, rather than visual appearance.

Choosing an original, used component allows you to:

• maintain the factory operating parameters of the washer system,
• avoid problems with ill-fitting aftermarket parts,
• reduce repair costs while maintaining high functionality.

Integration with the Washer System and Other Components

The filler neck hose and cap work directly with the tank, pump, and washer nozzles. A correctly selected component:

• stabilizes the connection between the filler and the tank,
• protects the fluid from external contaminants,
• provides convenient service access when refilling the fluid.

If you are planning a comprehensive repair or upgrade of the washer fluid service area in your Mercedes and need other parts from the same group, such as the tank, pump, or washer nozzles, check the available parts in the category Mercedes Washer Tanks, Pumps, and Nozzles.

Selection by Numbers and Technical Support

The selection of operating fluid system components – similar to the fuel system – should be based on manufacturer's catalog numbers and thorough verification of application in a specific model. It may be useful to consult technical materials describing the principles of selecting parts by OEM and reference numbers, as well as the impact of correct installation on the durability of the entire system. More on the methodology for selecting and diagnosing components functionally similar to tanks and hoses can be found in the article "Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair", which discusses a practical approach to working with liquid systems in a vehicle.

Summary

Mercedes W211 CLS W219 Washer Bottle Tube Pipe Cap is an original component of the washer system, ensuring proper fluid guidance and a tight seal of the filler neck. Thanks to its factory fit for E-Class W211 and CLS W219 models, it facilitates servicing, reduces the risk of leaks, and allows for the technically correct restoration of full functionality to your Mercedes' washer system.