How do you clean the ‘grease’ from the inside of the windscreen?
Problem specifically relates to my V40, but seems to be an issue to some extent in every car I have owned with a leather interior. I assume it is from leather conditioners - the old S40 got much worse after I treated the leather.
It’s like someone has smeared the inside of the glass with Vaseline, and the only thing you have to clean it is a Vaseline soaked rag - you can move it around, but never actually clean it off.
So far, I have tried a variety of glass cleaners, metho, carby cleaner, adhesive remover (Scotch700) - the grime just laughs at them.
I can get it so that it is fine on a dry, warm day, but a cold morning leaves a fog on the glass that the demister can’t cut through (yes, the heater works fine).
New experiment will be electronic contact cleaner, but I am losing hope...
Photo of rear view mirror shows the grime - camera only wanted to focus on things outside of the car...