I have a '96 E320 W210, the alarm always goes off whenever I open the door. The remote does not open the pneumatic door locks and neither does it deactivate the alarm. The keys when used on the driver's door only opens the driver's side, pneumatic locks still don't work and the alarm seems to be always activated. However, I can still start the engine with the keys but alarm still sounds. How do I reset or disable this? The car seems to think that it's being stolen all the time or being hot wired. Help please.