Car Alarms: Ungo alarm despair, dash area, flip switch

Question
I have a Mercedes with an Ungo 5000 alarm which was preinstalled when I got the car 7 years ago. During this time it has been working fine.

After not using the car for some time the battery went dead. After putting back the recharged battery, I could de-activate the alerm and start the car. The next time I wanted to start the car, however, I could not.

Now the alarm doesn't react on the remote control (tried to change the battery in that one, too) and lock/unlock the car and the LED is not flashing. And I cannot start the Engine.

I have checked that the battery is working and I have been through the manual. Now, my car is parked at the gas station and I don't know what to do next.

Any assistance or ideas will be appreciated.

Answer
Ok, try this.
Put the key in the ignition, and turn forward
all the way just before cranking. Then within
5 seconds, press and hold in the valet/overide
button, found under the dash area,
until the installed LED (the blinking light)
in your dash area comes on solid.
(Your valet switch might be the toggle (on/off) type.
in this case, key on, flip switch in oposite direction,
key off.)

This should be valet. This overides
the starter kill relay in the alarm harness,
and returns the car back to disarmed mode.

The only thing that will work now on your system,
is the keyless entry if installed.

Just Repeat these steps to rearm your system.

That should do it.
If you want to remove it at this point,
take it to your neighborhood installer
for this, or buy the wiring chart for
the vehicle, and reverse engineer it wire
by wire, until it's safely removed.

Let me know what happens.

ALARMTEK
STARTERDISABLE.com