BMW 7 Series: Safety Information For Working On Vehicles With Automatic Engine Start-Stop
Function (MSA)
WARNING: If the engine hood/bonnet contact is pulled upwards (workshop
mode),
the information "switch closed" is output. The automatic engine start-stop
function is active.
An automatic engine start is possible.
Observe safety precautions when working on MSA vehicles
Before carrying out practical work on the engine, always ensure that the MSA
functionality is deactivated so as
to prevent automatic engine starting while work is being carried out in the
engine compartment.
MSA function is deactivated by
- Deactivate MSA by means of button (1) in passenger compartment
- Open seat belt buckle and driver's door
Fig. 2: Identifying MSA Button
- Open engine bonnet/hood and ensure that engine hood/bonnet contact is
not in workshop mode
- Workshop mode
A = 10 mm
- Basic setting (engine hood/bonnet open)
B = 7 mm
To make sure that the engine hood/bonnet contact is at the basic setting, if
necessary press the hood/bonnet
contact up to the limit position before starting work and slowly release.
Fig. 3: Identifying Engine Bonnet/Hood Dimension
When working with diagnosis tools
- Observe instructions in diagnosis tool
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Installation:
If necessary, align shaft of flap(s) to be actuated to position of servodrive
to be installed.
Fig. 4: Identifying Servodrive Position
OVERVIEW OF ACTUATOR DRIVES ON HEATER/AIR CONDITI
Necessary preliminary tasks
Remove RIGHT/REAR SUSPENSION CROSS-BRACE.
REMOVE auxiliary E box
Unlock plug connection (1) on AUC sensor (2) and disconnect.
Fig. 8: Identifying Lock Plug Connection
SEE MORE:
The Telematics Control Unit (TCU) and the interface box 'High' (ULF-SBX-H)
control units are connected to
the MOST bus. TCU and interface box 'High' may both be fitted in the vehicle for
certain equipment options. In
this case, the telephone function is always implemented in the TCU.
The head uni
WARNING: Risk of burning!
Only perform this repair work on an engine that has cooled down.
Necessary preliminary work
Remove ACOUSTIC COVER.
REMOVE BOTH INTAKE SILENCER HOUSINGS.
Remove EXHAUST SYSTEM.
Remove both control sensors.
Remove both monitoring sensors.
Picture shows the left side,