No emergency release..My advice, soak the tumbler w/ WD 40/screw loose etc, etc.. and keep fiddling. Once it's open don't lock it again and order yourself up a new trunk tumbler from your local dealer.

Jonathan

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Blue Ridge Mercedes
Jonathan Hodgman
http://www.blueridgemb.com/
Enthusiast Service, Restoration & Tuning.
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Located in the Atlanta area
Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
Mercedes Repair Atlanta