My Z1 came equipped with a Einbauanleitung 7049 theft alarm. I had some difficulties with it, so I attempted to remove it. I disconnected the main connector, which seemed to disable the unit.
However, the car would not start.
This vehicle also had a flashing red light on the dashboard just to the left of the slider controls for the heater. This light did not flash after the car was started. I'm sure that this light is some indication of an additional theft protection that this car is equipped with.
To get the car to start with the Einbauanleitung 7049 theft control disconnected, I used a small rectangular ( 1cm X 1.5 cm X 5.5 cm ) black plastic device that was provided by the previous owner. I had never used this device before today. With this black plastic device, I touched it to the flashing red light on the dashboard.
The flashing red light stopped and the car started!
This flashing red light is clearly an additional theft deterrent system. I don't know why I did not have to touch the red light before.
Can someone tell me what this additional theft detection system is?
These systems are uncommon in the US.