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      05-01-2012, 09:16 AM   #9
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Drives: AW 07 e92 335i + AW 11 X5 35d
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Location: Atlanta GA

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2007 E92 335i  [0.00]
I'm not a vert owner so I can't say I'm right...

But I believe that the reason the headrests don't go up and down is that the headrest serves as a roll over protection device. When the car "senses" that it's in a roll-over situation, the headrest pops up.
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