Audi A3 S3 8V Windscreen Washer Tank Fluid Bottle Reservoir 5Q0955448BA

Visual condition of the part

The product shows signs of use visible in the photos.

Audi A3 S3 8V Windscreen Washer Tank Fluid Bottle Reservoir is an original washer system component designed for installation in Audi A3 and S3 models of the 8V generation. Thanks to its factory design, it ensures proper supply of the washer system with fluid and stable mounting in the body compartment, which translates into safe and predictable wiper operation. This part belongs to the Washer fluid reservoirs, pumps, and nozzles category and is provided as a used, fully functional replacement part.

Specifications and technical data

• SKU: 5Q0955453BA
• Mark: Audi
• Condition: Used
• OEM Part Number: 5Q0955453BA
• Substitutable numbers: 5Q0955453BA, 5Q0 955 453 BA
• Category: Washer Pumps, Reservoirs & Nozzles

Purpose and function in the washer system

The presented washer fluid reservoir is responsible for storing the operating medium and supplying it steadily to the pump and windshield washer nozzles. The design intended for the Audi A3 / S3 8V platform ensures:

• proper shaping for installation in the body compartment,
• factory mounting points to the body,
• compatibility with the original pump and washer system equipment.

As a result, the reservoir allows for maintaining the correct geometry of fluid line routing and stable operation of the entire system under typical operating conditions.

Construction and fitment for Audi A3 / S3 8V

The original design intended for Audi ensures precise fitment with body elements and compatibility with factory brackets, ports, and connectors. The reservoir is designed as an integral part of the washer system, which facilitates:

• installation in place of the factory reservoir without the need for modifications,
• connection of the existing fluid line installation,
• preservation of the original routing of lines and harnesses.

Such a solution reduces the risk of leaks and system venting problems, and also facilitates subsequent maintenance.

Condition, origin, and benefits of using a used part

The offered reservoir is an original Audi brand component in used condition. In practice, this means maintaining the factory geometry, material, and build quality, while optimizing repair costs compared to a new part. A used component of this type is particularly beneficial in situations where:

• mechanical damage to the reservoir has occurred (cracks, broken mounts),
• replacement is necessary after a collision or bodywork intervention,
• it is important to maintain the original assembly standard without universal solutions.

Choosing an original, used reservoir allows you to maintain the consistency of the washer system with the other factory elements of the vehicle.

Why it is worth using a dedicated Audi washer fluid reservoir

Using a dedicated reservoir in the Audi A3 / S3 8V translates into a number of practical benefits:

• preservation of the factory mounting position and operating capacity,
• proper interaction with the pump and washer nozzles,
• reduction of leak risk thanks to matched ports and seals,
• easier diagnostics of potential washer system faults.

This solution is especially recommended for repairs performed in accordance with the manufacturer's technology, where assembly repeatability and predictable system behavior in the long term are important.

If you are planning a comprehensive repair or upgrade of the washer system area 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.

Selection by part numbers and technical support

The selection of a washer fluid reservoir in modern vehicles should be based on catalog numbers and manufacturer data to avoid compatibility issues. In case of doubt, it is useful to use service documentation, parts catalogs, and compare the shape and mounting points with the element installed in the vehicle.

For users interested in a broader approach to diagnostics and component selection by catalog numbers, a guide on supply systems may be helpful, which discusses, among other things, the principles of identifying parts by OEM numbers and practical operating tips: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.