Mercedes-Benz 2016 SLK, Operator'S Manual

Page: 300 / 358

i
Remove the SmartKey if you park the
vehicle and do not require any electrical
consumers. The vehicle will then use very
little energy, thus conserving battery
power.
i
If the power supply has been interrupted,
e.g. if you reconnect the battery, you will
have to:
R
set the clock; see the separate operating
instructions.
On vehicles with COMAND and a naviga-
tion system, the clock is set automati-
cally.
R
reset the function for folding the exterior
mirrors in/out automatically, by folding
the mirrors out once (
Y
page 104).
Charging the battery
G WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a
risk of an explosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over a battery.
G WARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with skin, eyes or clothing. Do
not inhale any battery gases. Do not lean over
the battery. Keep children away from batter-
ies. Wash away battery acid immediately with
plenty of clean water and seek medical atten-
tion.
G
WARNING
A discharged battery can freeze at tempera-
tures below freezing point. When jump-start-
ing the vehicle or charging the battery, gases
can escape from the battery. There is a risk of
an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting.
!
Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
!
Only charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the
engine compartment.
If the indicator/warning lamps do not light up
at low temperatures, it is very likely that the
discharged 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 char-
acteristics can be impaired, particularly at
low temperatures. Have the thawed-out bat-
tery checked at a qualified specialist work-
shop.
Read the battery charger's operating instruc-
tions before charging the battery.
X
Open the hood.
X
Connect the battery charger to the positive
terminal and ground point in the same
order as when connecting the donor bat-
tery in the jump-starting procedure
(
Y
page 299).
298
Battery (vehicle)
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