Re: Renault Grand Scenic III - excess moisture on inside of windscreen
Have just noticed in the past week the front windscreen is excessively covered in moisture on the inside.
Depends what you've been up to in the car the night before
Condensation forms when hot and cold air meet, like on the windows of your house perhaps.
Not ruling out any water ingress, however, not sure where you live, but lately the day time temp has been a lot warmer than previously, but the night time temp still drops considerably. Then in the morning, especially if you have sun on the car, it all gets warm again.
This means that warm moist air inside the car condenses as it cools on the cold windscreen. Then when the outside temp increases, the air in the car is colder than the ambient temp. It doesn't happen so much on the side windows as they are vertical and the air is not trapped.