Mercedes W211 Windscreen Washer Bottle Filler Neck Reservoir Tank 2118600364

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W211 Windscreen Washer Bottle Filler Neck Reservoir Tank is an original washer system component designed for direct compatibility with the reservoir and factory installation. Thanks to its precise fit for the W211 body, it ensures convenient fluid refilling and stable mounting in the engine bay. This is a practical solution for users who want to restore full functionality to the washer system while maintaining factory-quality fitment.

Specifications and technical data

• SKU: RHD-A2118600364
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2118600364
• Substitutable numbers: A2118600364, A 211 860 03 64, 2118600364
• Part type: Reservoir
• Category: Washer Pumps, Reservoirs & Nozzles

Purpose and function in the washer system

This component serves as the filler section between the cap and the washer fluid reservoir, guiding fluid from the upper part of the engine bay directly into the tank. The properly contoured geometry of the neck facilitates access when refilling fluid, even in the tightly packed engine bay characteristic of the Mercedes E-Class W211 generation models.

The original design ensures:

• stable seating in factory mounting points,
• proper routing of the line along body components,
• secure connection to the washer fluid reservoir body.

Construction and fitment for Mercedes W211

The Mercedes W211 Windscreen Washer Bottle Filler Neck Reservoir Tank has been designed specifically for this model, which translates into compatibility with original brackets, clips, and the reservoir nozzle diameter. As a result, installation does not require any modifications or the use of additional adapters.

Key design features:

• profile matched to the shape of the wheel arch and W211 engine bay,
• factory support points to reduce vibrations while driving,
• nozzle diameter and shape compatible with the original fluid reservoir.

Condition, origin, and service application

The offered component comes from the original Mercedes production line, which means it maintains the manufacturer's quality standards regarding material, shape, and dimensional tolerances. As a part from the Washer fluid reservoirs, pumps, and nozzles category, it is suitable for both typical replacement of a damaged filler neck and comprehensive washer system maintenance, e.g., after a collision or bodywork repairs in the front section of the vehicle.

This solution is particularly useful when:

• the original filler neck has cracked or deformed,
• factory routing of components needs to be restored after body repairs,
• you want to maintain consistency with other Mercedes washer system components.

Benefits of using the original filler neck

Using an original filler neck in the washer system provides measurable operational benefits. Factory fitment for the Mercedes W211 minimizes the risk of leaks, rubbing against other components, and installation issues. In practice, this means:

• easier access to the filler cap when topping up fluid,
• stable routing of the line without tension,
• preservation of the original installation path in the engine bay.

For workshops and private users, this also means time savings during installation and the certainty that the component works correctly with other washer system parts.

Related Mercedes washer system components

If you are planning a comprehensive repair or upgrade of the washer system area in your Mercedes and need other items from the same group, such as reservoirs, pumps, or nozzles, check out the available parts in the Mercedes washer fluid reservoirs, pumps, and nozzles category.

Technical support and service knowledge

When selecting consumables for fluid systems in a car, it is worth using reliable sources of knowledge. In the context of fluid system operation and proper maintenance principles, an article describing diagnostics, selection based on manufacturer markings, and regeneration principles may be helpful – check out the material: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

If you want to effectively complete a larger set of original used parts for your car repair, it is worth learning about the one-stop-shop approach and good purchasing practices – more information can be found in the guide Comprehensive supply: from the engine to the smallest clip – how to complete used car parts in one place?.