Bear in mind the following related topic:
R
Oper
ating the on-board com-
puter(/ page 174)
Battery main switch
Notes on the battery main switch
*
NOTE Damag
ed to control units and
cooled component parts
When the main battery switch is removed
immediat
ely, cooling of important component
parts and the storage of parameters in the
control units can be interrupted. This can sig-
nicantly reduce the service life of component
parts and control units.
#
Make sure that vehicle is switched o.
Then w
ait at least 20 minutes before
removing the battery main switch.
You can use the battery main switch to disconnect
t
he current to all your vehicle's consumers. This
will prevent uncontrolled battery discharge caused
by quiescent current consumers.
If your vehicle is equipped with an auxiliary battery
in the engine compartment or in the base of the
front passenger seat, you must disconnect both
batteries. Only then will the electrical system be
fully disconnected from the power supply.
%
Disconnect the vehicle from the power supply
onl
y using the battery main switch in the fol-
lowing situations:
R
the vehicle is stationary for a long time
R
it is absolutely necessary to disconnect
the vehicle from the power supply
Aer switching on the power supply, you will
need to reset the side windows (/ page 62)
and the electric sliding door (/ page 56).
Switching the power supply on/o
Switching o t
he power supply
Battery main switch
%
Note the remaining time before the next
ser
vice due date (/ page 212) and oil change
(/ page 290). The time recording is also dis-
rupted if the power supply is disconnected.
#
Switch o t
he vehicle and wait at least 20
minutes.
#
Remove cover 1. T
o do this, take hold of the
cover at the upper edge, move it outwards in
the direction of the driver's door and li it o.
#
Press and hold button 3.
#
Pull plug 2 out of t
he earth pin.
#
Push plug 2 as f
ar as possible in the direction
of the arrow so that it cannot make contact
with the earth pin.
All starter battery consumers are disconnected
from the power supply.
Switch on the power supply
#
Press plug 2 ont
o the earth pin until you feel
it engage and plug 2 is in full contact with the
earth pin.
All starter battery consumers are reconnected
to the power supply.
#
Fasten cover 1. T
o do this, place the cover on
from above.
#
Press the cover into the neighboring switching
console on t
he right hand side.
122
Driving and parking
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