R
It is particularly important to observe the
described order when connecting and dis-
connecting the jumper cables.
R
Never connect or disconnect the battery
terminals while the engine is running.
Observe the safety notes on handling batter-
ies.
Before disconnecting and connecting the bat-
teries:
X
Remove the key from the ignition lock.
X
Switch off all electrical consumers.
Disconnecting
X
Remove the battery compartment cover.
X
Disconnect the negative terminal clamp
first, and then disconnect the positive termi-
nal clamp.
Connecting
X
Connect the positive terminal clamp first,
and then connect the negative terminal
clamp.
Do not interchange the battery terminals.
X
Replace the battery compartment cover.
Carry out the following tasks after an interrup-
tion to the power supply or after reconnecting
the batteries:
X
Deactivate anti-theft protection on the audio
equipment (radio) .
X
Set the switch-on time for the auxiliary heat-
ing system (
Y
page 63).
Removing/installing batteries
Important safety notes
!
Tighten the battery carrier screws with a
tightening torque of 15 lb-ft (20 Nm). Do not
use an impact wrench. Otherwise, you could
damage the threaded connection.
Observe the safety notes on handling batter-
ies.
Maintenance and care
Checking the battery fluid level
!
Tap water reduces the electrical perform-
ance of the battery. Only refill with distilled
or de-ionized water.
Do not use a metal funnel to refill. The metal
funnel could cause a short circuit and the
batteries could be damaged.
Battery fluid level (example: right-hand battery)
Observe the safety notes on handling batter-
ies.
X
Check the battery fluid level as regularly as
required by the vehicle operating conditions,
and at least once a year.
X
Remove the battery compartment cover.
X
Vehicles with batteries installed one above
the other: remove the batteries.
X
Unscrew the cell caps.
X
Check the battery fluid level.
The battery fluid must be between minimum
fill level mark
;
and maximum fill level
mark
:
in each battery cell.
X
Refill with distilled/de-ionized water.
X
Refit the plugs.
X
Vehicles with batteries installed one above
the other: install the batteries.
X
Replace the battery compartment cover.
Charging the batteries
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 suffi-
cient ventilation while charging and jump-
starting. Do not lean over a battery.
G
WARNING
A discharged battery can freeze at tempera-
tures below freezing point. When jump-start-
ing the vehicle or charging the battery,
168
Maintenance
Maintenanc
ea
nd
care
Summary of Contents for EconicSD
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