alarm will not go off on my 2001 e320 mercedes

[naydene]

my car doors, trunk, horn, windows, gas cap, and signal lights do not operate due to the alarm system is malfunction. i had to open my door manually because my remote was not opening the doors even after changing the remote battery. Now my alarm goes off everytime i open the door and its annoying. can i disable the alarm. my

[Zulfiqar]

the alarm should be disabled if you use the key to unlock the doors.