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E90 General Vehicle Electrical
Starting Engine without ID Transmitter
The function makes it possible to start the vehicle within 10 s after "engine OFF" without
detecting the identification transmitter. This function is intended for cases where the
identification transmitter is not detected due to high frequency interference, as an exam-
ple.
Check Control Message, Terminal 15
The Comfort Access System enables terminal selection without the ID transmitter being
inserted in its holder. It is possible that terminal 15 is selected by pressing the START-
STOP button. A corresponding check control message is shown in the instrument clus-
ter after the door is opened. An audible signal also sounds.
Note: The battery may be discharged if the driver ignores the warnings
and locks the vehicle.
Unintentional Wake-up Function
The sensors are subject to a check procedure in order to avoid waking the electronic
outer door handle module by touching the outer door handle without a valid identification
transmitter.
The identification transmitter is requested to send an authentication signal. If no valid ID
transmitter is detected, the electronic outer door handle module receives this information
from the CAS2. In this case, the electronic outer door handle module remains inactive
until a valid identification transmitter is detected.
Locking with Engine Running
The vehicle can also be unlocked with the engine running if the engine was started with
passive go. When leaving the vehicle, the ID transmitter must also be taken and the vehi-
cle locked from the outside.
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