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Connect negative terminal ? of donor battery B to earth point A 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 A 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.
After removing the jump leads, close cover : of positive terminal clamp ;.
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Have the battery checked at a qualified specialist workshop.
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PLUG-IN HYBRID vehicles: if your vehicle has been jump-started, it may not be possible to use the
electric drive for approximately 30 minutes.
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 not
available if:
the engine is not running.
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the brake system or the power steering is
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malfunctioning
the voltage supply or the vehicle's electrical
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system is malfunctioning.
If your vehicle is towed, significantly greater
force may be required to steer the vehicle or
to brake. There is a risk of an accident.
In such circumstances, use a towing bar.
Make sure that the steering is moving freely
before towing.
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.
Towing away and tow-starting
Details on the permissible gross vehicle weight
of your vehicle can be found on the vehicle iden-
tification plate (
page 434).
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!
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
hitch. You could otherwise damage the vehi-
cle.
!
Observe the following points when towing
with a tow rope:
Secure the tow rope on the same side on
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both vehicles.
Make sure that the tow rope is not longer
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than legally permitted. Mark the tow rope in
the middle, e.g. with a white cloth
(30 x 30 cm). This will make other road
users aware that a vehicle is being towed.
Only secure the tow cable to the towing
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eyes or, if available, to the trailer tow hitch.
Observe the brake lamps of the towing
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vehicle while driving. Always maintain a dis-
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