1 Series E81 118i (N46T) 3-door
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Unlock: When a hand pulls on the outside door handle via tension sensor (redundant to capacitive
sensor 1)
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Locking and deadlocking: On contact with the sensitive area of the door handle via capacitive sensor 2
A built-in aerial also sends radio signals in order to check for an ID transmitter located on the outside of the
driver's door or front-passenger door.
> E70, E81, E87, E90, E91, E92, E93
The outside door handle electronics are installed in the outside door handle.
[more ...]
> E60, E61, E63, E64
The outside door handle electronics are behind the grip recess plate.
[more ...]
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ID transmitter
The ID transmitter evaluates the signals from the aerials. It also sends high-frequency radio signals to the FBD
receiver.
Inserting the ID transmitter into the slot deactivates all Comfort Access functions.
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Remote control receiver for remote control services
> E64, E81, E87, E93
The remote control receiver is integrated in the interior mirror.
> E60, E61, E63, E70, E90, E91, E92
The remote control receiver is integrated into the aerial amplifier.
The remote control (FBD) receiver picks up radio signals from the ID transmitter and forwards them to the CAS
control unit. The Comfort Access control unit (CA control unit) activates the FBD receiver.
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CAS control unit
The CAS control unit (CAS: Car Access System) is the master control unit for all Comfort Access functions. The
CAS control unit is the interface to the START/STOP button and to the slot for the ID transmitter. The electronic
steering lock is also activated by the CAS control unit.
The CAS control unit is connected with the following components via the K-bus (sub-bus):
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Outside door handle electronics (number depends on model concerned)
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Comfort Access control unit (CA control unit)
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Electronic steering lock
When the vehicle is idle, communication may take place on the K-bus without waking up the vehicle.
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START/STOP button
The START/STOP button can be used to switch the terminals in sequence (0, R, 15, R, 0). The engine can be
started by depressing the clutch or the brake (manual transmission/automatic transmission) and pressing the
START-STOP button.
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Slot for the ID transmitter/remote control
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On vehicles without Comfort Access:
In order to start the engine, the remote control must be latched in place in the slot.
•
On vehicles with Comfort Access:
The remote control must be inserted into the slot if the battery in the ID transmitter is discharged. The
engine can then be started up.
Inserting the ID transmitter into the slot deactivates Comfort Access.
SBT Comfort Access E60, E61, E63, E64, E70, E81, E87, E90, E91, E92, E93
BMW AG - TIS
19.01.2013 06:34
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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