Car Condensation Causes and How to Fix Them

Close up of dew drops on a flat surface. | Chesterton, IN

Clear vision is essential when driving your vehicle. Yet, many drivers need to clear condensation from their windows and windshields before going anywhere. If you need to do this constantly, there are some steps you can take to keep the condensation out of your vehicle.

1. Dirty Windows Welcome Water Droplets

Water clings to dirt and pollen. One way to reduce the amount of condensation in your car is to keep your windows clean. Do not just wash the outside of your windshield. Instead, make sure you wash the inside of the glass as well. Keep a clean rag and a small bottle of glass cleaner in your car to make cleaning on the road quick and easy. Do not use paper towels as they can smear or possibly scratch your windows and windshield. Ideally, an old shirt or other soft material works on all the glass surfaces in your vehicle.

2. Damp Items in the Car

Another cause of condensation is wet items in your car. If you are coming back from the beach or the pool, leave the window cracked slightly. The continually moving air helps keep the water from gathering inside your vehicle. Another preventative step you can take is using a damp rid device in the car. These fit in either in your trunk or inside the car.

3. Leaks, Seen and Unseen

If you have kept your vehicle clean and dry, but still notice condensation, check for leaks. As your car ages, the seals along the windows and windshield start to dry out and shrink. If you live in a warm climate, the seals can dry out even faster. Check around the seals and see if they are wet. If they are damp, make an appointment to have them replaced. 

Make sure you dry a leak you find as soon as possible. Then remove the damp towels and watch for condensation. If more forms, make an appointment with a body shop. Ask them to check for any hidden leaks that are too small for the naked eye to find.

4. The Weather

Combat condensation caused by the weather with your defroster. Ideally, let the system run for a few minutes before you begin to drive. Don’t forget your air conditioner is not just for the summer. Rather, turn it on low for a few minutes when you first get inside. Yes, it’ll lower the temperature. However, the dry air that it puts out will help absorb any condensation.  If possible, use your garage to keep your car out of the weather. Keeping it inside reduces the chance of condensation forming.

Air out your car as much as possible to avoid condensation. If these small droplets sit too long, they can lead to mold and other significant issues for your vehicle. Don’t just check the exterior glass, monitor your dashboard and radio face for any problems as well. Condensation that sits too long on these elements can lead to issues with the electronics below, clear it quickly and keep them dry.

Image via Flickr by RichTatum | CC BY 2.0.