Mercedes-Benz CLS Owner's Manual page 319

316 Breakdown assistance
Observe this Owner's Manual.
Observe the following if you do not intend to use
the vehicle over an extended period of time:
Activate standby mode.
R
Alternatively: connect the battery to a bat‐
R
tery charger approved by Mercedes-Benz or
consult a qualified specialist workshop to
disconnect the battery.
Notes on starting assistance and charging
the 12 V battery
Vehicles with a lithium-ion battery
When charging the battery and during starting
assistance, always use the jump-start connec‐
tion point in the engine compartment.
* NOTE Damage to the battery from over‐
voltage
When charging using a battery charger with‐
out a restriction of the maximum charging
voltage, the battery or the on-board electron‐
ics can be damaged.
Only use battery chargers with a maxi‐
#
mum charging voltage of 14.8 V.
All other vehicles
When charging the battery and during starting
assistance, always use the jump-start connec‐
tion point in the engine compartment.
* NOTE Damage to the battery from over‐
voltage
When charging using a battery charger with‐
out a restriction of the maximum charging
voltage, the battery or the on-board electron‐
ics can be damaged.
Only use battery chargers with a maxi‐
#
mum charging voltage of 14.8 V.
& WARNING Risk of explosion from hydro‐
gen gas igniting
There is a danger of hydrogen gas igniting
when charging the battery if there is a short
circuit or sparks start to form.
Make sure that the positive terminal of
#
the connected battery does not come
into contact with vehicle parts.
Never place metal objects or tools on a
#
battery.
The described order of the battery
#
clamps must be observed when con‐
necting and disconnecting the battery.
When giving starting assistance, always
#
make sure that you only connect bat‐
tery terminals with identical polarity.
During starting assistance, you must
#
observe the described order for con‐
necting and disconnecting the jump
lead.
Do not connect or disconnect the bat‐
#
tery clamps while the engine is running.