Have checked out the trunk, it will lock and unlock through either the door lock or the trunk lock. Looking into the trunk to the right of the lock, found a access panel and behind it I observed a rod ending with a yellow plastic piece at what looks like the actuator. It moves in and out when the key is used in either the lock of the door or the trunk. But locking the trunk does not lock the doors. And as mentioned above the alarm will sound if you lock the car through the door lock and then use the key to unlock the trunk and open it. If the actuator is not the problem any other ideas?
<LI> 1988 300E Metallic Blue Black/light Gray interior
<LI> MBCA Member