My wife locked our only key in the trunk of our 2014 c300. A mechanic unlocked the door, but the security system activated and won't lets us pop the trunk.
Nov 20, 2017 @ 22:35 pm
If your rear seats fold you can access the trunk through the opening and either unlock the trunk via the emergency release or get the key.
Nov 21, 2017 @ 12:27 pm
The solution above with folding seats is the only one possible if you don't have a spare key or else you will have to visit your MB dealer