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1st thing to try is pressing the trunk / boot release button as they key fob may be close enough to allow this to work, also try the trunk release handle on the outside
if this doesn't help then sorry to say then the cheapest route is
1. call nearest MB dealer and give them vin#2. order a spare key. Only order the key (not the whole thing with remote)3. pick it up next day4. pay around 50 euro5. insert key in the trunk key slot6. the alarm will go off until you find your original key and press red button
do you still need help?
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