I have a roll of packing tape (Scotch type) in the trunk lol...

For these cars, if you go on vacation and park at home or airport, I am thinking we should use the clear-type packing tape to tape the window. This way iof something happens, the car won't be vandalized or flooded with rain water.

Once you return from vacation, just remove the tape.

Or be paranoid and replace all regulator parts.
But I have to admit: I hate working with trim pieces (door panels etc.), once you remove something, the plastic just breaks lol...

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1998 E39 528i 5sp MT
2006 E53 X5 3.0 6sp MT