BMW E87 cold weather problems: doors, windows and tailgate freeze
Why won't the E87 door lock or tailgate close in frost?
Usually the lock mechanism is sticky or frozen and nothing is broken. Warming the car in a garage or warming the tailgate with a blower helps. The lock mechanism can be lubricated with gun oil. Lock de-icer helps only for a moment and solvents make things worse in the long run.
Why does the E87 frameless window seal freeze shut and the window get stuck?
A damp seal freezes to the window glass. Before opening the door you can wipe, for example, a card between the seal and the glass, which frees the seal. After a winter wash the seals should be dried and loosened from the glass.
Is it a fault if the E87 window drops halfway when the door is opened?
No. The window of a frameless door drops slightly when the door-open button is pressed twice. The car works normally. A parking heater helps keep the windows thawed so that the seal does not freeze to the glass.
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