Mercedes ML W164 Windscreen Washer Bottle Fluid Tank Reservoir A1648690520

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes ML W164 Windscreen Washer Bottle Fluid Tank Reservoir is an original washer system component designed for professional replacement in vehicles of this series. Thanks to its factory-fit design, it ensures proper operation of the windscreen washing system and stable mounting within the vehicle body. It is a practical solution for users who want to restore full functionality to their washer system while maintaining Mercedes manufacturer specifications.

Specifications and technical data

• SKU: A1648690520
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1648690520
• Substitutable numbers: A1648690520, A 164 869 05 20, A1648600960, A 164 860 09 60
• Part type: Reservoir
• Category: Washer Pumps, Reservoirs & Nozzles

Purpose and function in the washer system

The presented reservoir is a component from the Washer fluid reservoirs, pumps, and nozzles group, responsible for storing fluid and reliably supplying it to the pump and subsequently to the nozzles. The design, tailored to the ML W164 body, allows for:

• safe maintenance of the appropriate amount of operating fluid,
• proper connection of washer system hoses and accessories,
• preservation of factory mounting geometry within the vehicle compartment.

As a result, the washer system maintains correct pressure and spray direction, which translates into a clear windshield and better visibility in difficult conditions.

Original origin and fitment for Mercedes ML W164

The reservoir was designed by Mercedes specifically for the ML W164 platform, which means full compatibility with factory mounting points and hose routing. The original construction ensures:

• compatibility with the factory washer pump and nozzles,
• proper fitment with body panels and covers,
• maintenance of the operating capacity intended by the manufacturer.

For workshops and users, this means installation without modifications, while adhering to the manufacturer's service standards.

Performance characteristics of the used component

As a used component, the washer fluid reservoir provides an economical alternative to a new part while maintaining the original design. In practice, this allows for:

• reducing the cost of washer system repairs while maintaining OEM quality,
• maintaining the technical consistency of the vehicle with factory solutions,
• reducing waste through the reuse of functional components.

This solution is particularly beneficial for comprehensive repairs of vehicles used intensively or in fleets, where both durability and service budget optimization are important.

Benefits of using an original washer reservoir

Using an original reservoir in a Mercedes ML W164 translates into a number of practical advantages:

• Stable washer system operation – proper alignment of ports and sockets for accessories minimizes the risk of leaks.
• Hassle-free installation – factory mounting points and geometry consistent with the ML W164 body facilitate the mechanic's work.
• Consistency with service documentation – the part corresponds to the solutions provided in the manufacturer's catalogs.

For the user, this means predictable washer system behavior and no need to adapt aftermarket replacements with uncertain parameters.

Selection by numbers and technical support

The item has a dedicated OEM part number and interchangeable numbers, which facilitates precise identification and selection for a specific ML W164 equipment version. In case of doubt during selection, it is worth using the manufacturer's catalogs or service support to ensure full compatibility with your specific vehicle.

For those interested in a broader approach to diagnostics and selecting components by manufacturer numbers and VIN, an article discussing the principles of operation and maintenance of fuel supply systems may be helpful – you can find it here: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

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