[talonlover]

The passenger door should unlock when you unlock the drivers door either by the key or the remote. The locks work off of a vacum system which probably has a leak somewhere. As far as a owners manual goes, you can call 1-800-for-mercedes and order one. Don't go to the dealer, the cost is the same but the shipping time takes FOREVER! Call the number and you will get it a lot quicker.
The hood release is under the knee panel all the way to the left, you will see it if you look9unless it's broken off, then look for a cable and use pliers) The saftey catch is under the star on the hood, actually in the star right under the center. The trunk is a push button where your key lock is. Just push the lock in.