Audi A4 S4 B8 Allroad Rear Windscreen Windshield Washer Jet Nozzle 8K9955985A

Audi A4 S4 B8 Allroad Rear Windscreen Windshield Washer Jet Nozzle is an original washer system component designed for rear window installation, ensuring precise fluid distribution and stable wiper operation. Thanks to the factory fitment for Audi B8 series models, you maintain the correct spray pattern geometry, which translates into better visibility and safe operation in difficult weather conditions. This is a practical solution for users who want to restore the efficiency of the rear window washer system without compromising on compatibility.

Specifications and technical data

• SKU: 8K9955985A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K9955985A
• Substitutable numbers: 8K9955985A, 8K9 955 985 A
• Location on the vehicle: Rear
• Part type: Washer Nozzle
• Category: Washer Pumps, Reservoirs & Nozzles

Purpose and function of the rear washer nozzle

The rear windscreen washer nozzle in Audi A4, S4, and Allroad B8 generation models is responsible for directing the fluid stream onto the rear window surface. A properly functioning component:

• ensures even coverage of the window with fluid,
• stabilizes the operation of the rear wiper,
• reduces fluid consumption thanks to proper atomization,
• minimizes the risk of window scratches resulting from "dry" operation. Its placement at the rear of the vehicle allows for effective window cleaning during rain, snow, or while driving on dirty surfaces, which has a direct impact on rear-view mirror visibility.

Construction and compatibility with the washer system

The component belongs to the Washer fluid reservoirs, pumps, and nozzles group, meaning it works with the existing fluid system, hoses, and pump in your Audi. The nozzle construction is prepared for installation in the rear body zone, maintaining the factory spray angle and appropriate stream dispersion. The original Audi origin helps maintain:

• proper fitment with the tailgate and covers,
• correct tightness of connections with the fluid hose,
• stable operation across a wide range of operating temperatures. As a result, installation is predictable, without the need for modifications or fitting universal replacements.

Benefits of using an original rear nozzle in an Audi

Using a rear windscreen washer nozzle dedicated to the Audi A4, S4 B8, and Allroad allows you to maintain the consistency of the entire washer system. In practice, this means:

• retaining factory spray parameters and cleaning area,
• lower risk of leaks and fluid loss,
• easier diagnostics of potential washer system faults,
• compatibility with the existing reservoir, pump, and hoses. For users who consciously choose original or used OEM parts, this is a way to maintain washer system functionality at a factory level while controlling service costs.

Installation zone and service aspects

The nozzle is designed for installation in the rear part of the vehicle, in the immediate vicinity of the rear window. Replacing this component is a typical service operation performed when:

• the fluid stream is weakened or dispersed outside the window,
• there is a complete lack of spray despite the pump working,
• there is mechanical damage to the nozzle tip,
• the window is fogged or dirty in a way that the wiper cannot remove. Due to the factory fitment for Audi, the installation can be carried out in an organized manner, maintaining the original fluid hose routing and the correct spray angle setting. 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 nozzles, pumps, or fluid reservoirs, check the available parts in the Audi washer fluid reservoirs, pumps, and nozzles category.

Technical support and selection of used parts

When choosing used washer system components, it is worth paying attention to compatibility with the specific body version and vehicle year, as well as the condition of the connection ports and the absence of visible housing cracks. Comparing the nozzle construction with the element removed from the car may also be helpful. If you want to better understand how to reasonably approach servicing VAG group cars, including the selection of used accessory components, check out the article Failure of accessories in TSI and TDI engines: how to service a Volkswagen reasonably and not overpay at the workshop?, which discusses practical rules for purchasing and replacing subassemblies. Additionally, if you are considering the difference between new and used washer system elements, the guide New or used? A comparison of costs and quality of car parts may be helpful, where you will find specific tips regarding the cost-effectiveness of choosing OEM parts from the secondary market.