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Make sure that the positive terminal of a connected battery does not come into contact with
vehicle parts.
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Never place metal objects or tools on a battery.
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It is important that you observe the described order of the battery terminals when connect-
ing and disconnecting a battery.
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When jump-starting, make sure that the battery poles with identical polarity are connected.
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It is particularly important to observe the described order when connecting and disconnect-
ing the jumper cables.
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Never connect or disconnect the battery terminals while the engine is running.
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WARNING
A discharged battery can freeze at temperatures below freezing point. When jump-starting the
vehicle or charging the battery, gases can escape from the battery. There is a risk of an explo-
sion.
Allow the frozen battery to thaw out before charging it or jump-starting.
!
Avoid repeated and lengthy starting attempts. Otherwise, the catalytic converter could be
damaged by the non-combusted fuel.
If the indicator/warning lamps do not light up at low temperatures, it is very likely that the dis-
charged battery has frozen. In this case, you may neither charge the battery nor jump-start the
vehicle. The service life of a thawed-out battery may be shorter. The starting characteristics can
be impaired, particularly at low temperatures. Have the thawed-out battery checked at a quali-
fied specialist workshop.
Do not start the vehicle using a rapid charging device. If your vehicle's battery is discharged, the
engine can be jump-started from another vehicle or from a donor battery using jumper cables.
Observe the following points:
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The battery is not accessible in all vehicles. If the other vehicle's battery is not accessible,
jump-start the vehicle using a donor battery or a jump-starting device.
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You may only jump-start the vehicle when the engine and exhaust system are cold.
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Do not start the engine if the battery is frozen. Let the battery thaw first.
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Only jump-start from batteries with a 12 V voltage rating.
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Only use jumper cables which have a sufficient cross-section and insulated terminal clamps.
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If the battery is fully discharged, leave the battery that is being used to jump-start connected
for a few minutes before attempting to start. This charges the battery slightly.
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Make sure that the two vehicles do not touch.
Make sure that:
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The jumper cables are not damaged.
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Bare parts of the terminal clamp do not come into contact with other metal parts while the
jumper cables are connected to the battery.
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The jumper cables cannot come into contact with parts which can move when the engine is
running, such as the V-belt pulley or the fan.
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Secure the vehicle by applying the electric parking brake.
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Shift the transmission to position j.
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Make sure that the ignition is switched off. All indicator lamps in the instrument cluster must
be off. When using the SmartKey, turn the SmartKey to position u in the ignition lock and
remove it (Y page 118).
Jump-starting
261
Breakdown assistance
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