bmwrocks said:
I think it would be appropriate (and considerate as a board member) to go into specifics about a security flaw you are aware of for the benefit of all.
The only way I can think of to get to a key inside without setting off the alarm is to pick the door lock, thereby disengaging the alarm as if you used the key in the door. Not being a locksmith, I am not sure how practical this is with our cars anyway. This is not a security "flaw". The thief would have to know (or be reasonably sure) there was a key inside, and have to be able to find it quickly to steal the car. Remember a car thief is like a burglar. He does not want to take long or be noticed in any way. That is part of his MO.
Anything can be stolen with the right tools and criminal methods. Everyone knows that.
Sounds like you know the flaw. The lock opens with a screwdriver and since the lock does not query the chip in the key, it assumes a key turned the tumbler and disengages the alarm. What it should do is set off the alarm unless the alarm is disengaged by remote like any other decent alarm system would do.
Now, anyone who has ever bought a car (not just a BMW) knows that most dealers put a spare key into the owners manual. Since at least half of the car owners out there never take that key out of the manual, an enterprising thief will break in and check for the existence of that key
without ever setting off the alarm Even putting the spare in the trunk doesn't make it safe since the thief can open the trunk from the button in the cabin. They just need to find that big thick owners manual.
There has been a rash of this in New Jersey where people are breaking into BMWs by cracking the lock cylinder and then driving off with a legitimate copy of the key.
Now that everyone knows how to steal a BMW, please don't go off and do it. K thx.