Nissan Sentra 2015 Wiper Size

Alright, let's talk about windshield wipers for your 2015 Nissan Sentra. It might seem like a trivial topic, but having the right wiper blade size and type is crucial for maintaining visibility, especially in inclement weather. Using the wrong size can lead to streaking, missed areas, and even damage to your windshield or wiper motor. So, let's dive into the specifics.

Understanding Wiper Blade Sizes for the 2015 Sentra

The 2015 Nissan Sentra, like most vehicles, uses different sized wiper blades for the driver and passenger sides. This is because the windshield is typically not symmetrical. The correct wiper blade sizes are:

Driver Side: 28 inches
Passenger Side: 15 inches

It's essential to use these exact measurements. A blade that's too long could overhang the windshield edge, potentially hitting the cowl (the panel below the windshield) or even interfering with the hood's operation. A blade that's too short won't clear the intended area, leaving blind spots.

Why these specific sizes?

These sizes are determined by Nissan's engineers to provide optimal windshield coverage without causing mechanical issues. The wiper motor and linkage are designed to move blades of specific lengths through a defined arc. Deviating from these lengths can put undue stress on these components, potentially leading to premature failure. Remember, a seemingly small difference in length can significantly impact the wiper system's overall performance and lifespan.

Types of Wiper Blades: Choosing the Right One

Beyond just size, you'll encounter various types of wiper blades, each with its pros and cons. Here's a breakdown of the most common types:

Conventional Wiper Blades (Frame Type): These are the most common and generally the most affordable. They consist of a metal frame with multiple pressure points that distribute force along the rubber blade. They are easily recognizable by their exposed metal framework.
Beam Blades (Bracketless): These blades feature a single, continuous piece of rubber encased in a flexible frame. They offer several advantages over conventional blades, including better contact with the windshield, reduced streaking, and improved performance in snow and ice. Because they lack the exposed frame, they are less prone to ice and snow buildup. Beam blades are considered an upgrade over conventional blades.
Hybrid Wiper Blades: These blades combine elements of both conventional and beam blades. They typically have a more aerodynamic design than conventional blades and offer improved performance in various weather conditions. They often feature a plastic or rubber housing that protects the blade from debris and helps to distribute pressure evenly.
Winter Wiper Blades: Designed specifically for harsh winter conditions, these blades feature a rubber boot that encases the entire blade assembly, preventing ice and snow from accumulating. They often use a heavier-duty rubber compound that remains flexible in freezing temperatures.

For the 2015 Sentra, any of these types can be used, provided they are the correct size. However, consider your local climate and driving conditions when making your choice. If you live in an area with frequent snow or ice, winter blades or beam blades might be the best option. If you're on a budget and live in a mild climate, conventional blades might suffice.

Understanding Wiper Blade Materials

The material used in the wiper blade itself (the part that actually contacts the windshield) is also important. Common materials include:

Natural Rubber: This is the traditional material used in wiper blades. It's relatively inexpensive and provides good wiping performance in moderate conditions. However, it's more prone to cracking and drying out due to UV exposure and temperature changes.
Synthetic Rubber: Synthetic rubber compounds, such as chloroprene or silicone, offer improved durability and resistance to the elements. They tend to last longer than natural rubber blades and provide better performance in extreme temperatures.
Silicone: Silicone wiper blades are known for their exceptional durability and wiping performance. They create a water-repellent coating on the windshield, which helps to improve visibility in rain and snow. They are typically the most expensive option but offer the longest lifespan.

Replacing Your Wiper Blades: A Step-by-Step Guide

Replacing wiper blades is a straightforward process that most car owners can handle themselves. Here's a general guide:

Preparation: Purchase the correct size and type of wiper blades for your 2015 Nissan Sentra (28" driver, 15" passenger). Have a soft cloth or towel handy to protect your windshield.
Locate the Wiper Arm Release Mechanism: Most wiper arms have a small tab or button that needs to be pressed or squeezed to release the old blade. The exact mechanism can vary slightly depending on the type of blade and arm, so consult your owner's manual or the wiper blade packaging for specific instructions.
Remove the Old Blade: Carefully detach the old wiper blade from the arm. Be gentle to avoid damaging the wiper arm. Some blades slide off, while others require a slight twist or rotation.
Attach the New Blade: Align the new blade with the wiper arm and attach it securely. You should hear a click or feel it snap into place. Ensure the blade is firmly attached before proceeding.
Repeat for the Other Side: Repeat the process for the other wiper blade.
Test the Wipers: Once both blades are installed, test them by running the windshield wipers with washer fluid. Check for any streaking, skipping, or unusual noises. If you notice any problems, double-check the installation and ensure the blades are properly seated.

Important Note: When removing the old wiper blades, be extremely careful not to let the wiper arm snap back against the windshield. This can easily crack or chip the glass. It's a good idea to place a soft towel or cloth between the arm and the windshield to prevent damage.

Troubleshooting Common Wiper Blade Issues

Even with proper installation, you might encounter some common wiper blade issues. Here's how to troubleshoot them:

Streaking: This can be caused by dirty blades, a dirty windshield, or worn-out blades. Clean both the blades and the windshield with a glass cleaner. If the streaking persists, replace the blades.
Skipping: This is often caused by a bent wiper arm or a blade that's not making full contact with the windshield. Check the wiper arm for any signs of damage or bending. If the arm is bent, it may need to be replaced. Also, ensure the blade is properly seated in the arm.
Chattering: This is a vibrating or squealing noise that occurs when the wipers are in motion. It can be caused by a dry windshield, worn-out blades, or improper wiper arm angle. Try cleaning the windshield and blades. If the chattering persists, try applying a small amount of windshield treatment to help the blades glide smoothly. If it continues, the wiper arm angle might need adjustment.
Smearing: Smearing is when the wiper blades leave a hazy film on the windshield. It's often caused by wax, oil, or other contaminants on the windshield. Clean the windshield thoroughly with a degreasing cleaner.

Upgrading Your Wiper System

While sticking with the standard 28"/15" configuration is generally recommended, some owners might consider minor upgrades. However, proceed with caution.

Important: Avoid using significantly larger blades than the factory specifications. Doing so can overload the wiper motor and linkage, leading to premature failure. It can also create safety hazards by reducing visibility.

One possible "upgrade" is switching to a higher-quality wiper blade type, such as beam blades or silicone blades. These blades often offer improved performance and durability compared to conventional blades. Another option is to use a windshield treatment that repels water, which can help to improve visibility and reduce the need for frequent wiper use. Consider Rain-X or similar products. These create a hydrophobic layer on the glass.

In conclusion, maintaining your 2015 Nissan Sentra's windshield wipers is crucial for safe driving. By understanding the correct wiper blade sizes, types, and replacement procedures, you can ensure optimal visibility in all weather conditions. Don't skimp on quality when it comes to wiper blades – they're a small investment that can make a big difference in your safety and driving experience.