This is a BMW 1 Series, in which the driver's door has no frame. The disc must every time you open a small piece drive down, so you can open the door.
As it got colder, I noticed that could drive the disc very bad down.
That's why I bought the balm, because I thought that would be applied to the window glass slightly better ride down.
But now I have the problem that can drive the window glass even at normal temperatures (10 ° C) badly down.
The rubber care can also be relatively poor to apply and leaves unsightly scars white.
Tried it best to remove, but it's harder than it applied.