Mercedes-Benz 2016 Sprinter Operator's Manual page 233

Disconnecting and connecting the
additional battery (engine compart-
ment)
Important safety notes
G
WARNING
During the charging process, a battery produ-
ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion.
Make sure that the positive terminal of a
R
connected battery does not come into con-
tact with vehicle parts.
Never place metal objects or tools on a bat-
R
tery.
It is important that you observe the descri-
R
bed order of the battery terminals when
connecting and disconnecting a battery.
When jump-starting, make sure that the
R
battery poles with identical polarity are
connected.
It is particularly important to observe the
R
described order when connecting and dis-
connecting the jumper cables.
Never connect or disconnect the battery
R
terminals while the engine is running.
Disconnecting the additional battery
!
Switch off the engine and remove the key
from the ignition lock. Firstly remove the bat-
tery terminals. Otherwise, you could destroy
electronic components such as the alterna-
tor.
Always disconnect the starter battery in the
battery case in the left-hand side footwell
first.
!
Always disconnect the battery in the order
described below. Never swap the terminal
clamps. You may otherwise damage the vehi-
cle electronics.
Additional battery in the engine compartment
Switch off all electrical consumers.
X
Switch off the engine and remove the key
X
from the ignition lock.
Open the hood ( page 218).
X
Y
First loosen and remove the negative terminal
X
clamp so that it is no longer in contact with
the terminal.
Remove the cover from the positive terminal.
X
Loosen and remove the positive terminal
X
clamp.
Connecting the additional battery
!
Always connect the battery in the order
described below. Never swap the terminal
clamps. You may otherwise damage the vehi-
cle electronics.
Connect the positive terminal clamp.
X
Attach the cover to the positive terminal.
X
Connect the negative terminal clamp.
X
Close the hood.
X
Carry out the following work after connecting
the battery:
Reset the side windows (
X
Installing and removing the additional
battery (engine compartment)
Removing the additional battery
Disconnect the battery (
X
Loosen the bolts holding the retainer that pre-
X
vents the battery from moving around.
Remove the battery holder and take out the
X
battery.
Battery
page 71).
Y
page 231).
Y
Z
231