ID transmitter
The ID transmitter evaluates the signals from the aerials. It also sends high-frequency radio signals to the remote control receiver (868 MHz/315 MHz, country-specific). Inserting the ID transmitter into the fixture deactivates all Comfort Access functions.
| Item | Explanation |
|---|---|
| 1 | ID transmitter |
| 2 | Mechanical key |
As opposed to the remote key, the ID transmitter on optional equipment 322 "Comfort Access" has a battery. The battery is needed for the following reasons:
- Recharging must not be needed, increasing convenience (e.g. by inserting in the fixture or from external charging station).
- The ID transmitter consumes more power than the remote key.
- The ID transmitter battery has a significantly higher capacity with a longer life.
An integrated mechanical key is provided to open or close the vehicle manually in an emergency (e.g. flat battery or local radio interference).