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A small part that plays an important role in keeping your windshield washer system properly sealed.
If your washer-fluid reservoir cap is missing, cracked, loose or worn, this replacement cap provides a simple way to restore the reservoir without replacing the entire washer-fluid tank.
Made from durable ABS plastic and designed as a direct replacement for the OEM 1K0955455, it's a practical solution for Audi owners looking to replace a damaged cap quickly and affordably.
Why You'll Love It
🔧 Direct Replacement Design
Designed to replace the original washer-fluid reservoir cap, helping you restore the factory setup without replacing the complete reservoir.
💧 Helps Keep Washer Fluid Contained
A properly fitted cap helps seal the reservoir and prevent washer fluid from escaping through the opening.
💪 Durable ABS Construction
Made from high-quality ABS plastic designed for everyday automotive use and resistance to elevated temperatures.
🔵 Factory-Inspired Blue Finish
The blue finish makes the washer-fluid reservoir cap easy to identify and provides a clean replacement for a faded, damaged or missing original.
⚡ Quick & Simple Installation
No complicated modification is required. Simply replace the old cap with the new one, provided your existing reservoir uses the compatible specification.
Compatible Audi Models
The listing identifies compatibility with a wide range of Audi vehicles, including:
Audi A3 / S3: 1997–2017
Audi A4 / S4 / Avant / Quattro: 1995–2015
Audi A5 / S5: 2010–2017
Audi A6 / S6 / Avant / Quattro: 1995–2017
Audi A7 Sportback: 2011–2017
Audi A7 Quattro: 2012
Audi A8 Quattro: 1997–2009
Audi A8 / S8 Quattro: 2004–2010
Audi Q3: 2012–2017
Audi Q5: 2009–2012
Audi Q7: 2007–2015
Audi TT: 2015–2017
Audi Allroad Quattro: 2001–2015
Audi RS4: 2007–2008
Audi S4: 2000–2012
Audi S5: 2010–2012
Audi S6: 2002–2011
Fitment can vary by year, engine and vehicle configuration, so always verify the part number and reservoir opening before ordering.
Product Specifications
Product: Windshield Wiper Washer Fluid Reservoir Cap
OEM Number: 1K0955455
Replacement Numbers: 357955455 / 8D0955455 / W01331639271
Material: ABS Plastic
Color: Blue
Quantity: 1 piece
Installation Size: Approximately 53 mm
Product Dimensions: Approximately 175 × 63 × 15 mm
Position: Front
Condition: 100% Brand New
Certification: CCC
High-Concern Chemicals: None reported
Origin: Mainland China
Installation
Installation is designed to be straightforward:
Open the hood and locate the windshield washer-fluid reservoir.
Remove the damaged or missing original cap.
Compare the new cap with the original opening.
Fit the replacement cap securely.
Check that it sits properly and seals the reservoir opening.
No cutting or complicated modification should be necessary when the correct part is selected.
⚠️ Verify the OEM Number Before Ordering
The most important compatibility reference for this product is:
OEM: 1K0955455
The listing also references 357955455, 8D0955455 and W01331639271 as replacement numbers.
Because Audi used different components across various models and production years, please compare your existing cap and part number before purchasing. Model compatibility lists are provided as a guide and should not replace physical/part-number verification.
Don't Replace the Whole Reservoir for a Missing Cap
A missing washer-fluid cap can be an annoying little problem—especially when the rest of the reservoir is perfectly functional.
Instead of replacing an entire reservoir assembly, restore the system with the correct replacement cap and get back to keeping your windshield washer system properly covered.
Replace the cap. Protect the reservoir. Keep your Audi ready for the road.
