This comes from being a dolt and slamming the rear hatch. The hatch is a
"soft close" where once the mechanism feels it's starting to latch, it
pulls itself closed.
BMW has replacements for the rubber bumpers the hatch came with that
have spring-loaded plungers in them. These eliminate this to a great
extent and help protect against the dolts.
You didn't mention if you're male or female. Males seem to get the
soft-close feature. Females just can't seem to grasp it (I'm married to
one who can't seem to grasp it..)
And have fun writing to BMW, they enjoy getting mail. Reading it just
makes their day sometimes.
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