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Slide cover A of positive terminal : in the direction of the arrow.
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Connect positive terminal : on your vehicle to positive terminal ; of donor battery B using the
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jump lead. Always begin with positive terminal : on your own vehicle first.
Start the engine of the donor vehicle and run it at idling speed.
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Connect negative terminal = of donor battery B to earth point ? of your vehicle using the jump
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lead, connecting the jump lead to donor battery B first.
Start the engine.
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Before disconnecting the jump leads, let the engines run for several minutes.
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First, remove the jump leads from earth point ? and negative terminal =, then from positive
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clamp : and positive terminal ;. Begin each time at the contacts on your own vehicle first.
Close cover A of positive terminal : after removing the jump leads.
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Have the battery checked at a qualified specialist workshop.
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Jump-starting is not considered to be a normal operating condition.
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Jump-starting cables and further information regarding jump starting can be obtained at any
qualified specialist workshop.
Towing away and tow-starting
Important safety notes
G
WARNING
Safety relevant functions are restricted or no
longer available if:
the engine is not running
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the brake system or power steering is mal-
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functioning
there is a malfunction in the voltage supply
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or the vehicle's electrical system
When your vehicle is towed away or towed
started, you may require considerably more
effort to steer and brake. There is a risk of an
accident.
In such cases use a rigid towing bar. Before
being towed away or tow started, make sure
the steering moves freely.
G
WARNING
If the steering wheel lock is engaged, the vehi-
cle can no longer be steered. There is a risk of
an accident.
Always switch on the ignition when towing
with a tow rope or a towing bar.
Towing away and tow-starting
G
WARNING
When towing or tow-starting another vehicle
and its weight is greater than the permissible
gross weight of your vehicle, the:
towing eye may be torn off
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car/trailer combination may swerve or
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even overturn
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 (
page 370).
Y
!
When COLLISION PREVENTION ASSIST
PLUS, DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes automatically
in certain situations.
To avoid damage to the vehicle, deactivate
these systems in the following or similar sit-
uations:
when towing away
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in a car wash
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!
Make sure that the electric parking brake is
released. If the electric parking brake is faulty,
visit a qualified specialist workshop.
!
Only secure the tow cable or tow bar to the
towing eyes or, if available, to the trailer tow
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