What Size Windshield Wipers for a 2015 Audi S5?

The 2015 Audi S5 typically uses a 24-inch wiper blade on the driver’s side and a 20-inch blade on the passenger’s side, but drivers should confirm fitment based on body style (coupé or cabriolet) and check manufacturer fit guides for exact compatibility. This article explains the correct sizes, how to verify them, and what to consider when buying replacements.

Standard Wiper Blade Sizes for the 2015 Audi S5

Most major parts catalogs and fitment databases list the 2015 Audi S5 with a staggered front wiper setup, where the driver’s side blade is longer than the passenger’s side. This improves visibility in the driver’s field of view while avoiding interference between the arms.

Front Windshield Wiper Sizes

The front wiper blades on the 2015 Audi S5 are designed to cover a wide, low-slung windshield typical of performance coupes. Manufacturers sell blades under various brand lines, but the physical length and attachment style are the key points for correct fitment.

The following list clarifies the most commonly specified blade lengths for the 2015 Audi S5’s front windshield and what each position refers to.

• Driver’s side (front): 24-inch (approximately 600 mm)
• Passenger’s side (front): 20-inch (approximately 500 mm)

These dimensions are consistent across leading wiper brands that provide vehicle-specific fitment, but packaging may sometimes round lengths by a few millimeters, which is acceptable if the blades are labeled as compatible with the 2015 Audi S5.

Rear Wiper Considerations

The 2015 Audi S5 is sold primarily as a coupé and cabriolet, neither of which is equipped with a rear windshield wiper from the factory. As a result, there is no standard rear wiper blade size for this model year and trim.

The following list outlines what owners should keep in mind regarding rear wipers on an S5.

• Coupé and Cabriolet models: No factory rear wiper installed.
• Aftermarket retrofits: Rare and not typically recommended, may interfere with body design and glass curvature.
• Hatchback/Sportback clarification: The S5 Sportback body style appeared in later model years and regions; always verify the exact body style before assuming rear wiper presence or size.

Because the 2015 S5 does not generally include a rear wiper, owners only need to focus on the two front blades unless a highly customized or region-specific vehicle has been modified.

How to Confirm the Correct Wiper Size

While database information is reliable, confirming wiper sizes directly on the vehicle is still recommended, especially if the car may have had non-standard arms, aftermarket windshields, or incorrect blades installed previously.

Checking Fitment Using Your Current Blades

Direct comparison with the existing blades is a straightforward way to avoid ordering an obviously incorrect size. However, it is important to remember that the blades currently on the vehicle might not be original or correct, particularly on used cars.

The following steps help drivers visually confirm or double-check the fitment without relying solely on online listings.

1. Measure each existing blade: Use a tape measure to check the length of the driver’s and passenger’s side blades separately.
2. Compare against standard sizes: Confirm that your measurements are close to 24 inches (driver) and 20 inches (passenger).
3. Inspect sweep area: Make sure the blade does not hit the top of the windshield trim or overlap excessively with the other blade when in motion.
4. Check for prior owner changes: If the measured sizes differ significantly from 24/20, assume a previous owner may have installed the wrong sizes and revert to the standard specification.

Using this method, owners can quickly identify if their car already conforms to the typical 24/20 configuration or if a corrective replacement is needed.

Consulting Manufacturer Fit Guides

Major wiper manufacturers and parts retailers maintain up-to-date application catalogs that match vehicles to compatible blade sizes and attachment types. For a 2015 Audi S5, this cross-reference is especially useful to ensure that the selected blades match the vehicle’s specific arm type.

The following sources offer reliable data for confirming the correct wiper sizes for an S5.

• Brand fitment tools: Online selectors from brands such as Bosch, Valeo, Rain-X, and Michelin that list make, model, and year.
• Parts store databases: Chain auto parts stores use VIN or model-based lookup systems to match blades to the vehicle.
• Owner’s manual: The Audi manual may specify size or at least confirm the vehicle’s wiper type and replacement procedure.
• VIN-based dealer lookup: Audi dealers can verify original equipment wiper specifications tied to the exact VIN.

By cross-checking the standard 24-inch and 20-inch sizes against one or more of these resources, owners can be confident they are purchasing compatible blades for their 2015 Audi S5.

Types of Wiper Blades Suitable for a 2015 Audi S5

The 2015 S5’s aerodynamic design benefits from modern, low-profile wiper blades. Choosing the right style can improve contact with the windshield at high speeds and in heavy weather, as well as reduce wind noise.

Conventional vs. Beam vs. Hybrid Blades

Wiper blades are generally grouped into three main categories, each with trade-offs in performance, cost, and appearance. The S5’s sporty character and curved windshield tend to favor beam-style blades, which are closer to original-equipment (OE) style for many Audi models of this era.

The following comparison highlights the main options that S5 owners typically consider.

• Conventional (frame-style) blades: Metal frame with multiple pressure points; generally less expensive but bulkier and can create more wind noise at highway speeds.
• Beam (flat) blades: Single-piece, low-profile design with even pressure across the glass; well-suited to high-speed driving and curved windshields, often preferred on performance cars.
• Hybrid blades: Combine a low-profile aerodynamic shell with an internal frame; offer improved aesthetics over conventional blades while retaining sturdy support.

For a 2015 Audi S5, beam-style or hybrid blades in the 24/20-inch configuration are commonly recommended for the best blend of performance, appearance, and compatibility.

Adapter and Mounting Style

Correct length alone is not enough; the blade must also lock correctly onto the wiper arm. Audi models of this generation often use specific connector designs, and many aftermarket blades ship with multi-adapter kits to accommodate them.

The considerations below help ensure a secure fit when installing replacement blades on the S5.

• Arm type: Verify whether your S5 uses a hook-style, pinch-tab, or specialty OE connector (many S5s use a more modern, low-profile connector rather than a simple J-hook).
• Multi-adapter kits: Many premium blades include several adapters; follow the blade’s instructions to choose the correct piece for the Audi arm.
• Click-in engagement: Ensure you hear or feel the adapter lock into place; a loose blade can detach under load or at speed.
• Test sweep: After installation, use the washer and wiper function to confirm full movement without noise, contact with trim, or misalignment.

Correct adapter selection and secure mounting are as important as blade length in preventing chatter, streaking, or even blade detachment in bad weather.

Maintenance and Replacement Intervals

Even the correctly sized 24- and 20-inch wiper blades will perform poorly if they are old, damaged, or contaminated. Regular inspection is key for drivers who rely on clear visibility in varied conditions, especially given the S5’s performance-oriented driving potential.

How Often to Replace Wipers on an S5

Exposure to sun, heat, cold, and road grime gradually breaks down wiper rubber. The actual replacement interval depends heavily on climate and storage conditions, but general guidelines still apply for most owners.

The following timeline offers a workable rule of thumb for 2015 Audi S5 drivers.

• Every 6–12 months: Typical interval for daily-driven vehicles in moderate climates.
• More often in harsh climates: Hot, sunny regions or areas with snow, ice, and road salt may require more frequent replacement.
• On condition rather than age: Replace immediately if blades smear, skip, chatter, or leave unwiped bands in the line of sight.

By paying attention to performance rather than waiting for a fixed date, S5 owners can ensure their wipers are always ready for sudden rain or spray.

Signs Your Wipers Are the Wrong Size or Failing

Poor wiping performance is not always caused by wear; sometimes it indicates that the wrong size blades have been installed. Distinguishing between size-related problems and normal aging helps owners solve the right issue.

The indicators below can help determine whether the problem lies with sizing, wear, or installation.

• Blades striking each other: Often a sign that the driver’s blade is too long or that both blades are oversized.
• Contact with windshield trim: If the blade hits the top or side trim, it may be longer than the intended 24/20 specification, or the arm may be mis-positioned.
• Persistent streaks in one zone: More commonly due to hardened or torn rubber, not size, and indicates it is time for replacement.
• Chattering or skipping: Can stem from old rubber, dirty glass, or a poor-quality blade; less frequently from sizing issues if the arc of travel is being exceeded.

Matching the factory-style 24-inch and 20-inch blades and ensuring they are fresh and properly installed addresses most visibility issues encountered by 2015 S5 owners.

Summary

The 2015 Audi S5 uses a staggered front wiper configuration with a 24-inch blade on the driver’s side and a 20-inch blade on the passenger’s side, with no standard rear wiper on typical coupé and cabriolet models. These lengths are widely supported by major wiper manufacturers and can be verified via brand fitment tools, parts store databases, or the vehicle’s documentation. Beam-style or hybrid blades in these sizes usually provide the best combination of performance and appearance for the S5’s curved windshield.