How to Clean the Inside of the Windshield in Your Car

Cleaning Windshield Inside

The windscreen of the car is an important safety feature and should be kept essentially clean to ensure good visibility while driving.

When it comes to cleaning the windscreen, the outer part of the glass is usually cleaned because it is exposed to dust, bugs and many other things.

However, it is equally important to clean the inner part of the windscreen as well. Most drivers usually skip cleaning the inner part because of the angle of the glass and the dashboard in between.

In this article, we will discuss how you can easily clean the inside of your windshield to give you excellent visibility at any time of day while driving.

How to Clean the Inside of the Windshield

Car Glass Cleaner

Here are some of the tools you will need before starting the cleaning process:

Once you have gathered the right equipment, start by cleaning the outside of the windscreen first. Spray clean water on the windscreen and wipe it with the microfibre cloth. When the windscreen is dry, clean it again with the glass cleaner, this time with a clean towel.

Do not use circular movements, but clean the windscreen from top to bottom and from left to right. When this is done, it is time to clean the inside of the windscreen.

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1: Wipe away any dirt

First, wipe any dirt from the inside of the windscreen with a clean microfibre cloth. Be sure to clean all glass from the driver’s side to the passenger side. To clean the area near the dashboard, sit on the seat with your back to the dashboard and clean the tight areas with your hand pointing backward.

2: Removing the Grease

Once the windshield is clean, it’s time to de-grease it with Mr. Clean Magic Eraser. This kitchen scrubber works perfectly to remove stubborn stains as well as oily residue that is not easily removed with a cloth. Dip the magic eraser into clean water and clean the glass with a circular motion. After cleaning, wipe off the liquid with a towel.

3: Applying Glass Cleaner

Once the windscreen is completely dry after cleaning with the Mr. Clean Magic Eraser, it is time to clean it again, this time with a glass cleaner. Take a clean towel and spray the glass cleaner on it. First, apply the glass cleaner thoroughly with a circular motion and then wipe it off with another towel in an up and down direction.

Making your own cleaning solution

If you do not have a glass cleaner at home, you can make your own cleaning solution using the following agents:

  • Rubbing alcohol
  • Vinegar
  • Window cleaner
  • Water

You can either mix half the portions of water and alcohol and then mix with a cap full of white vinegar, or you can use 70% water and some window cleaner together with the same amount of alcohol. It is not recommended to use an ammonia-based cleaner as it can damage the dashboard, seats, and other interior components of the car.

Points to Remember

Here are some important tips that you should follow when cleaning the inside of your windshield.

  • Always wash the inside of your windscreen last after you have cleaned the entire vehicle, including the exterior and interior parts.
  • Clean the inside of your car windscreen at night or in cooler temperatures. This will prevent the glass cleaner from evaporating quickly. In hot, sunny weather, you will find that the glass cleaner evaporates very quickly compared to cooler weather.
  • Always use a clean towel or rag when cleaning the inside of your car windscreen. Using the same cloth or rag to clean other parts of the car and the windshield will leave marks and dust on the windshield. It is recommended that you also use several towels to clean the windshield for a better result.

Reasons the inside of the windshield gets dirty

Before we start explaining how you can clean the inside of your windscreen, we first want to find out why the windscreen gets dirty from the inside. Here are some of the most common reasons:

1. Dust and grime

When you clean the interior, dashboard, or seats of your car, dust and dirt usually accumulate on the windshield. This allows your interior to stay sparkling clean, but the windscreen becomes dirty, causing visibility problems while driving.

2. Off-gassing

This is perhaps the main reason why your windshield gets dirty over time. Many people are not aware of the term off-gassing. The dashboard of your car is made of plastic that contains a number of chemicals and oils.

When the dashboard is exposed to sunlight over time, the high temperature causes the plastic to break down, releasing harmful oil and other substances that are deposited directly on the inside of the windshield.

Since these oils will not be easily visible, it is not a good idea to clean them with water only. Using oily or greasy detergents to clean the dashboard is also not recommended, especially if you live in a region with hot weather.

3. Smoking

Many drivers tend to smoke while driving. The smoke produced by the cigarette also contains dirt particles that accumulate all over the car including the windscreen and impair visibility.

4. Finger Prints

If you have children, there is definitely a chance that the windshield of your car has fingerprints on the inside. The dirt from little fingers will stick to the windscreen and obstruct the driver’s view.


Now that the inside of the windshield of your car is clean and shiny, it will be nice if you take proper care of it. It’s a good idea to park your car under the shade or in the garage because then the oil and grease from the dashboard will not be able to collect on the windscreen. You can also prevent off-gassing by opening the windows slightly while the car is parked.

Written by: Magnus Sellén

Founder, owner & main author of Mechanic Base. I have been repairing cars for more than 10 years, specialized in advanced diagnostics & troubleshooting. I have also been a drifting driver and mechanic for over 7 years.