2005 Mercedes CL-Class Owner's Manual - Page 108

Controls in detail Locking and unlocking Closing the trunk from the outside (vehicles with KEYLESS-GO*) In vehicles with trunk lid opening/closing system* you can close the trunk separately from the outside using the trunk lid closing switch. Warning! G i You can also close the trunk by hand ( page 104). If the trunk lid comes into contact with an object while closing (e.g. luggage that has been piled too high), the closing procedure is stopped and the trunk reopens slightly. Only drive with the trunk closed as, among other dangers such as visibility blockage, exhaust fumes may enter the vehicle interior. i Do not place the SmartKey in the open trunk. You may lock yourself out. i To prevent a possible inadvertent lockout, the trunk lid will open automatically if a SmartKey with KEYLESS-GO is recognized inside the vehicle or in the trunk. 1 Trunk lid closing switch Make sure you have the SmartKey with KEYLESS-GO with you. Press trunk lid closing switch 1 briefly. The trunk lid closes. i If the vehicle was previously centrally locked, the trunk will lock automatically after closing it. The turn signals flash three times to confirm locking. 106