Greasy Marks Inside of Windscreen

Ever since I had my air con regassed my windscreen appears to have this greasy-like marks that appear over time that looks like it needs de-misting, but it doesn't clear with the heater. They sort of look like smear marks as if I haven't dried it properly when washing the car. Definately on the inside too. I have cleaned the glass with glass cleaner and alcohol wipes too which appears to clean it but then they return. The air con is never on or hasn't been on for ages. Any ideas how to remove them or stop it happening?





Also might be on an Octavia vRS and not a Clio.......surely if it is air con related the Clios will suff too??

Does it clear when the A/C is on !?

Not really, will give it a go when I am next in the car. I am sure someone said it was the air con causing it to me ages ago, but never told me how to solve it.

My air con is on all the time and I get it. My windows are always being cleaned.

Apparently smoking is a filthy habit.:smile: