2017 Nissan Sentra Wiper Size

The 2017 Nissan Sentra, a popular compact sedan, relies on a seemingly simple component for driver visibility: the windshield wipers. However, the selection of wiper blade size and technology is a critical engineering decision impacting safety, performance, and overall user experience. This article delves into the specific wiper blade specifications for the 2017 Sentra, exploring the technical rationale behind the chosen sizes, comparing them to potential alternatives, and offering insights into maintenance, reliability, and future trends.

Wiper Blade Specifications for the 2017 Nissan Sentra

The 2017 Nissan Sentra utilizes a staggered wiper blade configuration. The driver-side blade is typically 28 inches in length, while the passenger-side blade measures 15 inches. These sizes are crucial for ensuring optimal coverage of the windshield area, maximizing the driver's field of vision in inclement weather. Deviating from these specified lengths can lead to uncovered areas, streaking, and compromised visibility, directly affecting safety. These sizes are typical for Sentras in the B17 generation (2013-2019) and are generally consistent across the trim levels.

Engineering Choices Behind the Size Selection

The selection of 28" and 15" blades isn't arbitrary. Nissan engineers carefully consider several factors when determining the appropriate wiper blade size, including:

Windshield Curvature: The curvature of the windshield dictates the optimal blade length to maintain consistent contact across the entire wiping surface. A blade that is too long might not conform correctly to the curve, leading to uneven pressure and ineffective cleaning.
Wiping Pattern: The wiper motor and linkage system are designed to create a specific wiping pattern. The blade lengths are chosen to maximize the cleared area within this pattern. Overlapping or areas left untouched can compromise visibility.
Aerodynamics: At higher speeds, wind resistance can significantly affect wiper performance. Longer blades can experience greater lift, reducing contact pressure and leading to streaking. The 28" and 15" combination strikes a balance between coverage and aerodynamic stability.
Motor Load: The wiper motor is designed to handle a specific load. Excessively long blades require more power to move, potentially overloading the motor and reducing its lifespan.

Alternatives and Comparisons

While the 28"/15" configuration is standard, some owners might consider alternative wiper blade sizes. However, it's crucial to understand the potential consequences.

Longer Driver-Side Blade: While tempting to increase coverage, a longer driver-side blade (e.g., 30") can potentially interfere with the A-pillar, create excessive noise, and strain the wiper motor. Furthermore, it might not conform properly to the windshield's curvature.
Longer Passenger-Side Blade: A longer passenger-side blade can similarly cause interference and potentially strike the cowl. The passenger-side blade's primary function is to clear the area directly in front of the passenger, so a significant increase in length offers minimal benefit while increasing the risk of problems.
Shorter Blades: Using shorter blades, while seemingly harmless, drastically reduces the cleared area, significantly hindering visibility in rain or snow. This is a safety hazard and should be avoided.

Several types of wiper blades are available for the 2017 Sentra, each with its own set of advantages and disadvantages:

Conventional Blades: These are the most common and affordable type, featuring a metal frame with a rubber squeegee. They are readily available but tend to wear out faster and are more susceptible to ice and snow buildup.
Beam Blades: Beam blades are frameless and feature a single piece of rubber that conforms better to the windshield's curvature. They offer superior performance, especially in adverse weather conditions, and tend to last longer than conventional blades. However, they are generally more expensive.
Hybrid Blades: Hybrid blades combine the benefits of both conventional and beam blades, featuring a framed structure with a beam blade design for improved contact and durability. They offer a good balance of performance and price.

Choosing the right type of blade depends on individual needs and preferences, considering factors like budget, climate, and driving conditions.

Real-World Performance

The 2017 Sentra's factory-specified wiper blade sizes provide adequate visibility in most driving conditions. However, performance can be affected by factors such as the quality of the wiper blade rubber, the condition of the windshield, and the severity of the weather. Streaking, smearing, and chattering are common complaints when wiper blades are worn or damaged.

Real-world testing consistently shows that beam blades tend to outperform conventional blades, especially in heavy rain and snow. Their frameless design allows for more uniform pressure distribution, resulting in cleaner and more consistent wiping. However, even the best wiper blades require regular maintenance to ensure optimal performance.

Reliability and Maintenance

Wiper blades are a wear item and require periodic replacement. The lifespan of wiper blades can vary depending on several factors, including:

Climate: Exposure to extreme temperatures, sunlight, and ozone can accelerate rubber degradation.
Usage: Frequent use, especially on dirty or abrasive surfaces, will shorten the lifespan of the blades.
Quality of the Blades: Higher-quality blades typically use more durable rubber compounds and construction methods, resulting in longer lifespan.

It is generally recommended to replace wiper blades every six to twelve months, or sooner if performance deteriorates. Signs of worn wiper blades include streaking, smearing, chattering, and splitting or cracking of the rubber squeegee.

Regular maintenance can help extend the lifespan of wiper blades:

Cleaning: Periodically clean the wiper blades with a damp cloth to remove dirt, debris, and road grime.
Windshield Cleaning: Keep the windshield clean to prevent abrasive particles from damaging the wiper blades.
Avoiding Dry Wiping: Avoid using the wipers on a dry windshield, as this can accelerate wear and tear. Use the windshield washer fluid instead.
Proper Storage: During periods of prolonged inactivity, lift the wiper arms away from the windshield to prevent the blades from sticking.

Future Trends

The automotive industry is constantly evolving, and advancements in wiper blade technology are ongoing. Some emerging trends include:

Silicone Wiper Blades: Silicone wiper blades offer superior durability and resistance to heat, ozone, and UV radiation compared to traditional rubber blades. They also provide a smoother and quieter wiping action.
Heated Wiper Blades: Heated wiper blades use a heating element to prevent ice and snow buildup, improving visibility in winter conditions.
Rain-Sensing Wipers: Many modern vehicles are equipped with rain-sensing wipers that automatically adjust the wiping speed based on the amount of rainfall. These systems rely on sensors that detect moisture on the windshield.
Wiperless Systems: While still in development, some automakers are exploring wiperless windshield cleaning systems that use ultrasonic vibrations or air jets to remove water and debris.

Conclusion

The 2017 Nissan Sentra's wiper blade sizes are carefully chosen to optimize visibility and safety. While alternative sizes might seem appealing, it's crucial to adhere to the factory specifications to avoid compromising performance and potentially damaging the wiper system. Regular maintenance and timely replacement of wiper blades are essential for maintaining clear visibility in all weather conditions. As automotive technology continues to advance, we can expect to see further innovations in wiper blade design and functionality, ultimately enhancing driver safety and convenience. The future of automotive technology leans toward increased automation and enhanced safety features, impacting even seemingly small components like wiper blades. The continuous innovation in materials, design, and integration with vehicle systems reflects the automotive industry's commitment to improving the driving experience and prioritizing safety.