I called the BMW dealership, they said to pull the door frame away from the car to try and access the central locking button with a clothes hangar or something of that nature. Now of course I'm thinking this will damage the car as the frame is a tight fit, but he said if I had it towed to them that's how they would do it!

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2002 X5 4.6is
1999 C5 Corvette
1992 Mitsubishi 3000GT VR-4
1994 Kawasaki ZX-9R
2005 Mazda 6 Wagon (Wife's)
1991 Mitsubishi 3000GT VR-4