Window insulated or not?
I need to purchase a new frameless window for my 5er. The company sent me part numbers for both insulated and non. How do I know which one I have?
Forum Discussion
If having difficulty determining the number of panes, get a dollar store keychain laser, shoot it into the window at an angle at least 30 degrees off straight on and hold a paper to catch the reflections. Each pain reflects from the front and back so you will get 2 spots (close together) for single glaze, 4 spots for double glaze.
