The window fell down into the door.
Hello. A window falling into the door is generally a symptom of a broken window regulator. The regulator consists of a few plastic pulleys which are always under a lot of tension from holding and operating the window. The plastic will usually succumb to the tension over time and break causing the window to fall into the door as it is no longer supported. I suggest having a qualified mechanic, such as one from YourMechanic, replace the window regulator assembly.
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