1 Series E87 118i (N43) 5-door
An automatic engine start is possible.
Terminal 15 is automatically switched off via the signal from the door contact by
opening or closing the driver's door with ASSF deactivated (e.g. "belt unfastened")
and the driving lights switched off.
Terminal 15 can be switched on again permanently by then pressing the START-
STOP button.
Perform this process before programming or diagnosing a vehicle.
The Auto Start Stop function is dependent on information from the energy management. In
the event of the battery being changed or after every flashing process, the reference data
on the charge and quality status of the battery may be lost. They will only be available again
after a teach-in period of approx. 6 hours (bus system must be in sleep mode). The Auto
Start Stop function cannot be activated during this teach-in phase for reasons of reliability.
Faults memorised in the ASSF system fundamentally result in the Auto Start Stop function
being deactivated. Before renewing parts, always perform a functional check to exclude the
possibility of a malfunctioning sensor!
After working on vehicles with the Auto Start Stop function involving one of the following
actions, the Auto Start Stop function is switched off until the new no-load current/battery
parameters have been learned.
In the following instances, the customer's attention should be drawn to the delay until the
next ASSF engine stop:
-
After disconnecting the battery
-
After programming the engine management (note exceptions).
Be sure to observe the safety precautions when working on vehicles with Auto Start Stop
function! Before performing work on the engine, always make sure that the Auto Start Stop
function is switched off to prevent an automatic engine start while working in the engine
compartment!
The Auto Start Stop function is deactivated by:
-
ASSF button
-
Belt catch
-
Engine emergency running
-
Open the engine hood
In most test modules in which individual component functions and/or lines are checked
rather than the Auto Start Stop function, the Auto Start Stop function is switched off until the
next terminal change for reasons of safety. This takes place automatically, i.e. a job that
temporarily deactivates the Auto Start Stop function is performed without the Service
technician being able to influence events.
Important:
In the event of a fault in the belt catch, front lid contact switch or ASSF button, the
Auto Start Stop function is not deactivated automatically. This could potentially
result in the engine starting automatically while servicing work is being carried out
in the engine compartment.
Be sure to observe the safety precautions when working on vehicles with Auto
Start Stop function!
To prevent an automatic engine start while working in the engine compartment,
always make sure that the Auto Start Stop function is switched off via "Deactivate
ASSF button/release belt catch and front lid".
If it cannot be guaranteed that the Auto Start Stop function is switched off, for
SI Auto Start Stop function E81 E87 E90 E91 E92 E93 R56
BMW AG - TIS
19.01.2013 16:31
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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