What Size Are Audi A4 Windshield Wipers?

Audi A4 windshield wiper sizes vary by model year and body style, but most modern A4s typically use a 24-inch blade on the driver’s side and a 19-inch blade on the passenger’s side, with some model years using 24″/20″ or slightly different rear wiper sizes for Avant (wagon) and Allroad variants.

Understanding Audi A4 Wiper Blade Sizes

The Audi A4 has been produced across multiple generations since the mid-1990s, and wiper blade specifications have changed slightly over time. The driver’s side wiper is almost always longer to maximize the swept area in front of the driver, while the passenger and rear wipers tend to be shorter. Getting the correct size is essential for visibility, safe operation, and to avoid damage to the wiper mechanism or windshield.

Typical Wiper Sizes by Audi A4 Generation

The following sections outline common wiper blade sizes used on the Audi A4 by approximate model-year ranges. Exact sizes can vary slightly by market and trim (sedan, Avant, Allroad), so these figures should be treated as reliable general guidance, not a substitute for checking your specific car’s fitment.

B9 Generation (2017–present, including many 2016 European models)

For the current B9 Audi A4 generation (sedan, Avant, Allroad), most configurations follow a consistent pattern: a longer blade on the driver’s side and a slightly shorter one on the passenger side, with a compact rear blade on wagons and Allroad models.

• Front driver: 24 inches (approx. 600 mm)
• Front passenger: 19 inches (approx. 480 mm)
• Rear (Avant/Allroad): 13–14 inches (approx. 330–350 mm), depending on supplier and region

In practice, many owners purchase 24″/19″ sets for the front of the B9 A4 and a matching 13″ or 14″ rear blade listed specifically for the Avant or Allroad, which typically ensures proper fit and full wiping coverage.

B8 Generation (2009–2016, including facelift)

The B8 Audi A4, produced from the late 2000s into the mid-2010s, uses sizes that are very similar to the current B9 generation, though some catalogs list a slightly longer passenger-side blade for certain years or markets.

• Front driver: 24 inches (approx. 600 mm)
• Front passenger: 19–20 inches (approx. 480–500 mm), commonly sold as 19 inches in many aftermarket kits
• Rear (Avant/Allroad): 13 inches (approx. 330 mm), sometimes cataloged as 12.5–13 inches

Most aftermarket “B8 A4” wiper kits standardize on 24″/19″ for the front and a 13″ rear blade, and these dimensions generally provide correct fitment and sweep for everyday use.

B7 Generation (2005–2008)

The B7 A4, which bridged the early and mid-2000s for Audi, moved toward more modern, beam-style blades but kept comparatively similar lengths to later generations, especially on the front windshield.

• Front driver: 24 inches (approx. 600 mm)
• Front passenger: 19 inches (approx. 480 mm)
• Rear (Avant): 16 inches (approx. 400 mm) in many catalogs, though some list 15–16 inches depending on brand

Because of evolving rear hatch design on older Avants, rear blade size listings can vary slightly, so comparing the existing rear blade or checking vehicle-specific fit guides is particularly useful on B7 wagons.

B6 Generation (2001–2005)

The B6 Audi A4, sold in the early 2000s, also uses a familiar staggered front setup, with a long driver-side blade and a notably shorter passenger-side blade. Rear sizes for Avant models are distinct from later generations.

• Front driver: 22–24 inches (approx. 550–600 mm; many aftermarket sets list 22 inches)
• Front passenger: 19 inches (approx. 480 mm)
• Rear (Avant): around 16 inches (approx. 400 mm), depending on brand

Owner manuals and parts catalogs differ slightly on whether the driver’s blade is specified at 22 or 24 inches; usually, buying a set marketed specifically for the “Audi A4 B6” ensures you receive the correct length and mounting style.

B5 Generation (mid‑1990s–2001)

The first-generation A4 (B5) used more traditional, framed wiper blades, and sizes varied slightly between early and late years as Audi updated arms and mounting systems. Still, the pattern of a longer driver blade and a shorter passenger blade remains consistent.

• Front driver: typically 21–22 inches (approx. 530–550 mm)
• Front passenger: typically 19 inches (approx. 480 mm)
• Rear (Avant): about 16 inches (approx. 400 mm), with small variations by brand

Given the age of B5 A4s, many owners rely on aftermarket catalogs or cross-referencing existing blades, as original documentation may be missing; the 21″/19″ or 22″/19″ combinations are the most commonly recommended sets.

How to Confirm the Correct Wiper Size for Your A4

Because of minor regional differences and occasional catalog discrepancies, it’s smart to verify sizes for your particular Audi A4 before purchasing new blades. Choosing the exact fit helps ensure effective wiping, less noise, and full compatibility with the wiper arm design.

Practical Ways to Verify Wiper Size

The methods below are the most reliable ways to confirm the correct blade sizes for your specific vehicle, accounting for model year, body style, and regional variations.

• Check the owner’s manual: Many Audi manuals list front and rear wiper blade lengths or part numbers for each model year and body type.
• Use an online parts catalog: Major wiper brands (e.g., Bosch, Valeo, Michelin) and auto parts retailers provide vehicle-specific lookup tools by year, make, model, and body style.
• Measure your existing blades: Remove or gently lift the wiper arms and measure the metal or plastic backing from end to end with a tape measure.
• Cross-check sedan vs. Avant/Allroad: Remember the rear wiper size applies only to Avant (wagon) and Allroad variants; sedans usually have no rear wiper.
• Match the attachment type: Beyond length, confirm the connector style (such as side pin, top lock, or hook-style) to ensure the new blade fits your existing wiper arm.

By combining these checks, Audi A4 owners can confidently purchase blades that match both the correct length and mounting system, reducing the risk of poor performance or compatibility issues.

Why Exact Wiper Size Matters

While it might be tempting to fit “close enough” blades, precise sizing is important on modern Audi A4 models, where windshield curvature and wiper sweep patterns are carefully designed to maximize visibility and minimize noise and chatter.

Impact on Safety and Performance

Several key factors explain why correct wiper blade dimensions should not be overlooked, especially in wet or snowy climates.

• Visibility: Too-short blades leave unwiped zones in the driver’s field of view, while too-long blades can overlap, hit the windshield frame, or clash with each other.
• Wear and tear: Oversized blades place extra stress on wiper motors and linkages, potentially shortening component life.
• Noise and streaking: Incorrectly sized or poorly fitting blades often chatter, squeak, or streak, especially at highway speeds.
• Defroster compatibility: Properly sized blades clear the area over defrost vents more effectively, speeding up demisting in cold or humid conditions.

For drivers, using correctly sized wipers is a relatively low-cost way to maintain clear vision, protect mechanical components, and keep the Audi A4 performing as intended in adverse weather.

Summary

Most recent Audi A4 models—especially the B8 and B9 generations—use a 24-inch driver’s side wiper and a 19-inch passenger-side wiper, with Avant and Allroad models typically adding a 13–16 inch rear wiper depending on generation. Older generations use similar but sometimes slightly shorter front sizes. Because there are small differences across years, markets, and body styles, the best practice is to confirm your exact model year and variant, then check the owner’s manual, a trusted parts catalog, or measure your existing blades. Correctly sized wiper blades ensure optimal visibility, quieter operation, and longer component life for your Audi A4.