1 Series E81 118d (N47) 3-door
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Engine running and key taken out of vehicle -
no ASSF engine stop
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Engine in ASSF engine stop status and key taken out of vehicle - no ASSF
engine start
The engine can only be started by the driver pressing the start/stop button.
Deactivation via a safety function
If the Auto Start Stop function is deactivated by a safety function during an ASSF engine
stop, the engine can only be restarted via the start/stop button and from a speed of
5 km/h.
Deactivation by system error (emergency-run concept)
If a fault is detected in the system environment of the Auto Start Stop function (signal
inputs, bus signals etc.), a switch-off inhibitor is set or the Auto Start Stop function
deactivated.
Fault detection while the engine is running thus prevents any subsequent engine stops by
the Auto Start Stop function. In the event of a fault detected in an engine stopped by the
Auto Start Stop function, a distinction is made between the following instances.
1.
If safety-relevant faults are identified (fault in neutral-position sensor, brake partial-
vacuum sensor, clutch sensor, enable line, front lid contact switch or driver's belt
catch), the Auto Start Stop function is deactivated immediately and an automatic ASSF
engine start is no longer permitted.
2.
If other faults DME/DDE emergency running, etc.) that are not safety-critical are
identified, the next ASSF engine start is still permitted. No further ASSF engine stops
are permitted.
3.
In the event of faulty bus communication with the DME/DDE engine management, the
Auto Start Stop function is disabled.
Note:
If the Auto Start Stop function is deactivated by a system fault, a CC message
(ID397) is flashed up in the
instrument cluster.
See "Display concept"
Deactivation by external factors
If the belt catch or front lid are opened during an ASSF engine stop, the Auto Start Stop
function is deactivated and an engine start is only possible with the start/stop button or from
a speed of > 5 km/h. If the driver attempts to start the engine by pressing the clutch pedal,
the CC message ID450 is flashed up after 1 to 2 seconds.
(see "Display concept").
Deactivation by ASSF button
Note:
SI Auto Start Stop function E81 E87 E90 E91 E92 E93 R56
BMW AG - TIS
17.01.2013 10:13
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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