Quote:
Originally Posted by JohnnyRoaster
I don't think the vert has a motion sensor built in for the alarm. It works in my sedan if I leave the windows down, activate the alarm and then stick my hands in the car. The siren is not very loud but enough for people close by to hear.
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All models have a motion sensor. In the coupe, the windows (and sunroof) must be completely closed for it to function (this is unlike my E46, where you could trigger it by sticking you arm through an open window). I'm not sure why the sedan would be different. In the convertible, the interior is monitored up to the height of the seat cushions even with the roof open (meaning it can be triggered if the roof is open and there is a falling leaf, etc.). The motion sensor can be switched off if you press the lock button on the remote immediately after first locking the car. It resets when the vehicle is unlocked.