Audi A4 B9 Windshield Washer Fluid Reservoir Bottle Tank 4G2955463

Audi A4 B9 Windshield Washer Fluid Reservoir Bottle Tank is an original component from the Washer fluid reservoirs, pumps, and nozzles group, designed for the windshield cleaning system in the Audi A4 B9 generation. Thanks to its factory design, it ensures proper fluid circulation, stable mounting, and correct operation with the washer pump and nozzles.

Specifications and technical data

• SKU: 8W0955453K
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0955453K
• Substitutable numbers: 8W0955453K, 8W0 955 453 K, 8W0955451L, 8W0 955 451 L
• Category: Washer Pumps, Reservoirs & Nozzles

Purpose and function in the washer system

The presented reservoir is responsible for the safe storage of washer fluid and its delivery to the pump, and subsequently to the nozzles on the windshield. The properly shaped housing helps maintain a stable fluid level while driving, which reduces the risk of air entering the system and improves cleaning efficiency in various road conditions.

As an original Audi component, the reservoir is matched to the factory mounting points in the A4 B9 body, which facilitates installation and ensures compatibility with other system components.

Construction and technical fitment

The reservoir has been designed to work with the dedicated pump and washer nozzles used in the Audi A4 B9. The shape and arrangement of the connection ports are adapted to the original fluid hose harness, so there is no need to modify the installation.

The element belongs to the Washer fluid reservoirs, pumps, and nozzles group, which means it is part of a complete system responsible for maintaining proper driver visibility through effective windshield cleaning. Proper fitment of the reservoir is important both for the correct operation of the pump and for the durability of the entire system.

Product condition and benefits of using OEM parts

The offered reservoir is in used condition, which allows for an economical replacement of a damaged or leaking component while maintaining the manufacturer's original specifications. Using OEM parts reduces the risk of installation problems, leaks, or collisions with other components in the engine bay.

The main advantages of using an original reservoir in the Audi A4 B9 include:

• factory fitment to the body and washer system,
• maintenance of the working capacity designed by the manufacturer,
• compatibility with the original pump and nozzles,
• consistency with other elements of the windshield cleaning system.

Practical installation and maintenance tips

When replacing the reservoir, it is worth paying attention to the condition of the fluid hoses, seals, and the washer pump itself. Replacing several elements at once allows you to reduce the number of service downtimes and ensures stable system operation in the long term. After installation, it is recommended to thoroughly bleed the system by activating the washers several times and checking for leaks around the ports and connections.

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

Part selection by numbers and technical support

The selection of the correct windshield washer fluid reservoir for the Audi A4 B9 should always be verified based on the OEM number and interchangeable numbers, as well as vehicle data (model, year, body version). This avoids installation problems and ensures full compatibility with the factory configuration of the car.

For users interested in deepening their knowledge of diagnostics and selecting components by catalog numbers, the article describing the principles of operation and maintenance of fuel supply systems, which also discusses practical aspects of identifying parts by VIN and OEM numbers, may be helpful – details can be found in the material Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.