Mercedes-Benz 2008 R 320 CDI 4MATIC Operator's Manual page 510

Step 8 (Disconnecting)
f Positive terminal with cover
g Negative terminal
Disconnect battery negative lead from
negative terminal g.
Make sure the negative lead does not
come into contact with the positive
lead.
Remove the cover from positive
terminal f.
Disconnect battery positive lead from
positive terminal f.
Step 9 (Removing)
Take out battery.
Step 10 (Reinstalling)
Insert battery into the well under the
passenger seat.
Battery, shown removed for illustration
b Battery ventilation hose
h Vent plug
!
The battery, battery ventilation hose b,
and vent plug h must always be securely
installed when the vehicle is in operation.
Carry out step 11 ( page 509) to
reconnect the battery .
Practical hints
Carry out steps 7 through 1 in reverse
order to completely reinstall the bat-
tery, ( page 508) to ( page 505).
Step 11 (Reconnecting)
If the battery has been removed, carry
out step 10 ( page 509) before start-
ing the connecting procedure.
Open the driver's door.
Make sure the SmartKey is removed
from the starter switch.
Vehicles with KEYLESS-GO*:
Make sure the vehicle's on-board
electronics have status 0.
With the driver's door opened, the
vehicle's on-board electronics
have status 0, same as SmartKey
removed from the starter
switch ( page 41).
Battery
509