Leave the roof switch alone
Glass in the railsWhy it matters
Opening or closing the panel drags fragments through the guide rails, the drive cables and the sunshade tracks. Every cycle grinds glass into plastic guides that were fine a minute ago. The same goes for the shade: if it's already closed, leave it closed; if it's open and still moves, close it once and stop.
Make it safe to drive
Tape a sheet of plastic or a heavy rubbish bag over the opening from the outside, edges taped to the painted roof, not to the glass. Keep the speed down; at motorway speed the wind lifts the sheet and what's left of the panel with it. Don't lean on the remaining glass, and don't try to punch the rest out. If the shade is torn or glass is hanging over the seats, don't drive it; ask your insurer about a tow.
Send us two photos
One from outside showing which panel broke (the front panel that slides, the rear panel that doesn't, or both). One from inside, with the shade left where it is. Text them to 0418 200 289 and we can usually give you a first read the same business day: panel, panel plus shade, or complete cassette, and whether it looks like a job for your insurer. The itemised quote follows a look at the car.