I would like to take the opportunity to inform your members that there is a possibility that new Mercedes using electronic keys are potentially not as secure as you may want them to be. The keys may be able to be duplicated or the electronic signal copied. How! I do not know. Mercedes will deny there is a problem for obvious reasons. But I have experienced the result of this. You may want to contact your local dealer to get there view, but i would keep an eye out on the vehicle.