Mercedes R231 Washer Filler Fluid Neck Tank Bottle A2318600164

Mercedes R231 Washer Filler Fluid Neck Tank Bottle is an original windshield cleaning system component designed for Mercedes R231 series models. Thanks to its factory design, it ensures proper operation of the washer system and stable mounting within the body compartment, which translates into trouble-free performance during daily driving.

Specifications and technical data

• SKU: A2318600164
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2318600164
• Substitutable numbers: A2318600164, A 231 860 01 64
• Category: Washer Pumps, Reservoirs & Nozzles

As a part from the Washer fluid tanks, pumps, and nozzles category, this component allows you to restore full functionality of the windshield cleaning system after a collision, mechanical damage, or wear of the previous tank, while maintaining compliance with Mercedes factory standards.

The item is used, which offers a favorable compromise between the quality of an original part and the cost of repair, especially in the case of comprehensive bodywork and washer system maintenance.

Function and role in the washer system

The washer fluid tank in a Mercedes R231 is responsible for storing the operating medium and supplying it steadily to the pump and further to the washer nozzles. A properly selected and leak-free tank minimizes the risk of:

• air entering the washer system,
• fluid leaks in the body compartment,
• insufficient pressure at the nozzles,
• accelerated corrosion of components in the vicinity of the system.

The original design ensures proper routing of connectors and mounting sockets, which facilitates installation and reduces stress on the washer hoses and pump.

Compatibility and OEM selection

The presented tank is a component dedicated to the Mercedes R231 platform, which means that its geometry, placement of mounts, and connections were designed for a specific body. In practice, this translates into:

• secure fitment with factory mounting points,
• correct positioning relative to the wheel arch, engine bay, and covers,
• no need for modifications to brackets or hoses.

For certainty of selection, it is recommended to use the OEM part number or interchangeable numbers visible in the technical specification – this allows you to verify compatibility with the specific vehicle equipment version and avoid installation issues.

Condition, purchase benefits, and practical application

As a used item, the Mercedes R231 washer fluid tank is a sensible solution for post-accident repairs or replacement after cracking due to frost or mechanical damage. Compared to non-factory replacements, the original component ensures:

• retention of factory geometry and operating capacity,
• compatibility with original mounts and covers,
• consistency with the existing washer pump and nozzle system.

This solution is particularly recommended for vehicles where maintaining the original manufacturer's specification is important – both for technical reasons and for potential resale of the car.

Installation and maintenance tips

When replacing the washer fluid tank, it is worth paying attention to several technical aspects:

• checking the condition of the hoses supplying fluid to the nozzles,
• verifying the tightness of the washer pump and seals,
• inspecting mounts and any vibration-damping elements,
• cleaning the sockets and mounting areas of deposits and corrosion.

After installation, it is recommended to fill the system with fresh fluid with parameters adapted to the season and perform a test of the front and – if present – rear window or headlight washers.

Related components and additional information

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

For users interested in a broader context of selecting and operating power supply system elements and diagnosing components by OEM numbers, the following guide article may be helpful: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses practical principles of identifying parts by numbers and good service practices.

If you are considering a wider replacement of components in your car and want to better understand the specifics of original parts from the secondary market, it is also worth reading the guide: Best used car parts – a guide to the most frequently chosen original parts, which discusses the advantages of making an informed choice of used components for popular brands, including Mercedes.