I have a 2006 Mer. ML350. I haven't driven it for a week and a half. I believe the battery is dead. I try to open the doors using the remotes, doors won't open. I tried to open using the folding keys manually, the doors still won't open. There is only one key hold at the driver's side, nowhere else. Does anyone know a trick to open the doors or I do have to call locksmith? Thanks.

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hi, could you open front pessanger door use the key?