Mercedes-Benz Zetros 2020 Operating Instructions Manual page 170

Maintenance
168
G
WARNING
The high weight of the batteries can cause
the battery carrier to slip out of your hands
and fall. There is a risk of injury.
Always use suitable lifting gear to pull out
the battery carrier. Have a second person
assist you.
Always remove the battery carrier slowly and
with care so that the wiring is not accidentally
damaged or torn out.
X
Loosen hexagon bolts : on the right and
left of the battery carrier.
X
Detach cables ; on the batteries.
X
You can now carefully remove the battery
carrier.
Disconnecting and connecting the bat-
teries
Important safety notes
! Vehicles with BlueTec
treatment: do not disconnect the battery
until the engine has been switched off for at
least five minutes. This ensures that the
exhaust gas aftertreatment functions after
restarting.
Disconnecting
X
Remove the key from the ignition lock.
X
Switch off all electrical consumers.
X
Remove the battery cover.
X
Disconnect the negative terminals.
X
Disconnect the positive terminals.
®
exhaust gas after-
Connecting
X
Remove the key from the ignition lock.
X
Switch off all electrical consumers.
X
Connect the positive terminals.
Do not interchange the battery terminals.
X
Connect the negative terminals.
X
Refit the battery cover.
Carry out the following tasks after an interrup-
tion to the power supply or after reconnecting
the batteries:
X
Deactivate the anti-theft protection for the
audio equipment (radio) (see the manufac-
turer's operating instructions).
X
Set the clock.
Maintenance and care
Checking the battery fluid level
! Tap water reduces the electrical power
output of the batteries. Add only distilled or
de-ionised water.
Do not use a metal funnel when adding dis-
tilled water. The metal funnel may cause a
short circuit and the batteries may be dam-
aged.
Example: battery fluid level
X
Check the battery fluid level every six
months or, at the latest, after 50,000 km.
X
Observe the safety instructions.
X
Remove the battery compartment cover.
X
Unscrew the cell caps.
X
Check the battery fluid level.
The battery fluid must be between min. ;
and max. : marks approximately 15 mm
above the top of the plate.
X
Top up with distilled/de-ionised water.