Proper use of the defroster and heating
How to use heat and airflow intelligently for better visibility and comfort.
Many people use the defroster and heating a bit randomly. The result is often slow demisting, wet windows and unnecessarily poor visibility during the first minutes of the journey.
What you need to know
- Correct airflow matters more than simply using a high temperature.
- Moisture inside the car must be removed, not just moved around.
- You often need different settings for a cold start, rain and winter conditions.
Typical situations
| Situation | What you should do | Common mistake |
|---|---|---|
| Cold, dry winter morning | Use heat on the glass and get the airflow going early. | Starting to drive before the clear-visibility zone is large enough. |
| Mild rainy day with lots of moisture | Use air conditioning and ventilation to remove the moisture. | Turning up the heat without actually getting rid of the dampness. |
| Full car with wet clothes | Adjust the airflow distribution and consider extra ventilation during stops. | Keeping the car completely closed while there is a lot of moisture inside. |
Common mistakes
- Thinking maximum heat is always best.
- Forgetting the rear window and side windows when setting the climate system.
- Using recirculation incorrectly when the cabin is already damp.
How to practice
Read this together with Defogging and visibility , Condensation on the inside of the car and Climate control and air quality in the cabin .
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