Washer Tank Mercedes W247 Washer Fluid Reservoir A2478690500

Washer Tank Mercedes W247 Washer Fluid Reservoir is an original windshield cleaning system component designed for the W247 series models. Thanks to its factory design, it ensures proper supply to the washer system and stable mounting within the body compartment, which translates into trouble-free operation during daily driving.

Specifications and technical data

• SKU: A2478690500
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2478690500
• Substitutable numbers: A2478690500, A 247 869 05 00
• Category: Washer Pumps, Reservoirs & Nozzles

Purpose and function in the vehicle

The presented reservoir is a component of the system responsible for storing washer fluid and delivering it to the pumps and nozzles. In combination with other system components, it enables:

• maintaining the appropriate amount of operating fluid,
• stable connection of hoses and any washer pumps,
• safe dissipation of mechanical loads from the mounts to the body structure.

Due to its fit to the W247 body geometry, the reservoir does not interfere with other components in the compartment and allows for maintaining the factory routing of hoses and electrical harnesses.

Construction and fitment for Mercedes W247

The original reservoir design was developed specifically for the W247 platform, which ensures precise fitment with factory mounting points. The shape and arrangement of the connection ports are adapted to the standard washer fluid hose system in this model.

The item belongs to the Washer fluid reservoirs, pumps, and nozzles group, which means it works with other components of the same system – pumps, hoses, and nozzles – creating a complete, sealed system responsible for cleaning the windshield and headlights (if the vehicle is equipped with them).

Condition and service application

The product is offered in used condition, making it an attractive solution for post-accident repairs, replacing a damaged reservoir, or restoring full functionality of the washer system in vehicles used intensively. Replacing the reservoir is particularly recommended in situations of:

• cracked housing and fluid leaks,
• damage to mounts after a collision,
• problems with maintaining tightness at the connection ports.

A well-chosen, original reservoir allows for reducing assembly time, avoiding modifications, and maintaining the factory installation routing.

Benefits of using an original reservoir

Using an original component in the washer system brings a number of practical benefits:

• Factory fitment – no need to modify brackets, hoses, or harnesses.
• Consistency with other washer system components in the Mercedes W247.
• Reduction of the risk of leaks resulting from inaccurate fitment of aftermarket replacements.
• Possibility of using existing pumps and nozzles if they are functional.

For workshops and individual users, this means faster repair completion and predictable system behavior after installation.

Part selection by numbers and technical support

When selecting a washer fluid reservoir for a specific W247 equipment version, it is crucial to pay attention to the manufacturer's markings and compatibility with the washer system used in the given vehicle. In case of doubts regarding the interpretation of manufacturer numbers, verification methods by VIN, or comparison with other components, it is worth using the practical tips described in the guide on safe online shopping – a detailed discussion can be found in the article Risk-free online parts shopping – verifying compatibility by OEM numbers.

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

For users interested in a broader look at diagnostics and component selection by manufacturer numbers, as well as the principles of vehicle system operation, the service guide describing the work and maintenance of the fuel supply system may also be helpful – more information can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which organizes the approach to identifying parts by OEM and VIN numbers.