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X
Start the engine of your own vehicle.
X
Let the engines run for several minutes.
X
Before disconnecting the jumper cables, switch on an electrical consumer in your own vehicle,
e.g. the rear window heating or the lighting.
X
When the jump-starting procedure is finished: first, remove the jumper cables from ground
point ? and from negative terminal = of the donor battery, and then from positive terminal :
and positive terminal ; of the donor battery. Begin each time at the contacts on your own vehicle
first.
X
After removing the jumper cables, close cover A of positive terminal :.
X
Only for vehicles with a carbon-fiber engine cover: insert the cover of the jump-starting
connection point. Make sure all mountings for the fasteners are positioned precisely behind the
corresponding recesses in the cover.
Press the fasteners into the mountings. Turn the fasteners by Õ of a turn to engage.
X
Have the battery checked at a qualified specialist workshop.
Jump-starting is not considered to be a normal operating condition.
i
Jumper cables and further information regarding jump-starting can be obtained at a qualified
specialist workshop.
Towing and tow-starting
Important safety notes
G
WARNING
The rear axle locks when:
R
the engine is not running
R
the engine stalls while the vehicle is being
towed
R
there is a malfunction in the power supply
or the vehicle's electrical system
There is a risk of an accident.
In the event of a breakdown, you should
always have the vehicle transported.
G
WARNING
If the brake system or power steering is mal-
functioning and your vehicle is then towed
away, significantly more effort may be
required to steer and brake than is normally
required. There is a risk of an accident.
In such cases, use a tow bar. Before towing,
make sure that the steering moves freely.
G
WARNING
When towing or tow-starting another vehicle
and its weight is greater than the permissible
gross weight of your vehicle, the:
R
the towing eye could detach itself
R
the vehicle/trailer combination could roll-
over.
There is a risk of an accident.
When towing or tow-starting another vehicle,
its weight should not be greater than the per-
missible gross weight of your vehicle.
Details on the permissible gross vehicle weight
of your vehicle can be found on the vehicle iden-
tification plate (Y page 287).
!
Use the SmartKey instead of the Start/Stop
button when towing the vehicle.
Start the engine and keep it running. The
SmartKey is in position 2 in the ignition lock.
Set the transmission to i using the E-
SELECT selector lever. Make sure that you
then leave the SmartKey in position 2.
Check the transmission position in the instru-
ment cluster.
!
Make sure that the electric parking brake is
released. If the electric parking brake is faulty,
visit a qualified specialist workshop.
258
Towing and tow-starting
Breakdown assistance
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