Mercedes R170 Windscreen Washer Fluid Tank Filler Neck A1708690317

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes R170 Windscreen Washer Fluid Tank Filler Neck is an original washer system component designed for Mercedes models. It ensures a tight and stable connection between the filler neck and the fluid reservoir, which translates into trouble-free refilling and safe operation of the system during daily driving.

Specifications and technical data

• SKU: A1708690317
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1708690317
• Substitutable numbers: A1708690317, A 170 869 03 17
• Part type: Washer Nozzle
• Category: Washer Pumps, Reservoirs & Nozzles

Purpose and function in the washer system

The described filler neck hose is part of the Washer fluid reservoirs, pumps, and nozzles group, responsible for storing and distributing windshield washer fluid. This component guides the fluid from the filler neck to the reservoir, minimizing the risk of leaks and facilitating service refilling of the fluid.

A properly selected filler neck hose is essential for:

• maintaining the tightness of the washer system,
• stable mounting in the body compartment,
• trouble-free filling of the fluid reservoir,
• reducing the risk of corrosion and dirt around the reservoir area.

Benefits of using an original Mercedes component

Using an original Mercedes component allows you to maintain the factory routing of the hose and compatibility with the body structure. Thanks to this:

• connections to the filler neck and reservoir are matched to the factory mounts,
• there is no need for modifications or the use of additional adapters,
• the washer system operates stably under typical operating conditions.

Original manufacturing also facilitates easier diagnostics – the mechanic immediately recognizes the hose routing and mounting points, which shortens the time of any repairs within the washer system.

Part condition and service application

The element is offered in used condition, which makes it a cost-effective solution for maintenance repairs when functionality and compliance with the factory design are the priority. This type of part is particularly useful in situations where:

• the original filler neck hose has cracked or worn out,
• there are fluid leaks in the vicinity of the reservoir,
• replacement of the component is necessary after a collision or bodywork intervention.

Thanks to the preservation of the original hose geometry, installation is predictable, and the washer system can be quickly restored to proper operation.

Selection by numbers and integration with other components

The product has a dedicated OEM part number and interchangeable numbers, which facilitates precise identification and selection for a specific body version. When planning broader service work within the windshield washer fluid supply system, it is also worth paying attention to the condition of the reservoir, pump, and washer nozzles to avoid recurring faults.

If you are interested in a broader approach to diagnostics and selecting components by OEM numbers, an article describing the principles of operation and servicing of supply systems, including selecting parts by numbers, may be helpful – check the material: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Expanding the Mercedes washer system

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

Well-chosen components from one group allow you to maintain the technical consistency of the system, reduce the number of service downtimes, and ensure the driver has a clear windshield in varied weather conditions.

Summary

Mercedes R170 Windscreen Washer Fluid Tank Filler Neck is a practical service solution for Mercedes vehicle users who want to restore the efficiency of the washer system while maintaining factory geometry and mounts. The original origin of the component promotes trouble-free installation, and the proper fit to the body helps keep the washer system in a stable, predictable operating condition.