2005 mercedes e320 cdi both keys locked in trunk how to open????

With most cars that use keys, the key must be turned to unlock the shifter and steering column.

Many People don't know exactly how to use the manual key attached to your remote to open the doors and trunk in case the battery is dead. All you have to do is slide the locking button in the back of your remote and pull the metal pre-cut key, then insert it in the trunk lock, turn key to the left and then push in. kawaboongha!!!

MERCEDES HAS FUSES AND RELAYS IN TRUNK ON LEFT SIDE.

okay the dealer may be right,the wiring sometimes breaks from opening and closing trunk,the trunk release operates on the same power as door locks, if door locks work its not a fuse,check the wiring harness in the trunk near hinge, this system is a complex one,so if you dont see a broken wire in the harness,(you will have to untape the wiring to see every wire) have a tech check the system.

check your fuse

The mechanism might be siezed. Try lubricating the lock or heating it up to release it.

Usually after removing any interior trim, there's a slide clip holding the assy. to the lid.

Valet key is not supposed to operate the truck or glove box lock.

hi, if you jack up the car at the front you can power up enough voltage via jump leads red to starter motor and black to earth, hope this helps you, cheers

battery located in trunk on rt side.