Page 577 of 666
575 Practical hints
Battery
5
\1
Switch off all electrical consumers.
Disconnecting the starter batteryThe starter battery is in the battery re-
cess in the driver’s footwell.Removing/installing the floor cover-
ing in the driver's footwell
1Floor covering
2Trim
3Securing screws\1To remove:
undo screws
3
and re-
move trim
2
.
\1
Remove floor covering
1
.
!
CAUTION
Switch off the engine and take the
key out of the ignition lock before
you loosen or disconnect the termi-
nal clamps. You may otherwise de-
stroy electronic components such as
the alternator.
Always disconnect the starter bat-
tery in the battery recess in the driv-
er’s footwell first.
nf_BA.book Page 575 Friday, January 25, 2008 3:53 PM
Page 578 of 666

576 Practical hintsBattery
5
\1To install:
place floor covering
1
into the driver’s footwell.
\1
Push floor covering
1
under the
plate metal bracket of the accelera-
tor pedal and align it with the driver’s
seat base and the doorway
Make sure the floor covering does
not obstruct the accelerator’s range
of movement.
\1
Position trim
2
and screw
screws
3
back in.
Removing the battery cover in the
driver’s footwell1Cover
2Securing screws\1
Undo screws
2
and slide cover
1
in the direction of the arrow.
The screws must protrude beyond
the recesses.
Warning
G
The movement of the pedals must not be ob-
structed. The vehicle’s operating and road
safety are otherwise jeopardized.
Make sure to push the floor covering under
the plate metal bracket of the accelerator
pedal. The floor covering may not slip bet-
ween the bracket and the accelerator pedal.
Otherwise, you may not be able to fully
depress the accelerator pedal, which will
restrict the vehicle’s acceleration capability,
for example when passing another vehicle.
nf_BA.book Page 576 Friday, January 25, 2008 3:53 PM
Page 579 of 666
577 Practical hints
Battery
5
\1
Remove cover
1
upward.
Starter battery in the driver’s footwell
\1
Loosen the negative terminal of the
battery first and remove it so that the
negative terminal cannot come into
contact with the pole terminal.
\1
Remove the cover from the positive
terminal.
\1
Loosen the positive terminal and fold
the positive terminal and the prefuse
box up to the side.
Disconnecting the auxiliary battery*
\1
Open the hood (
\2
page 318).
Auxiliary battery in the engine compart-
ment
nf_BA.book Page 577 Friday, January 25, 2008 3:53 PM
Page 580 of 666
578 Practical hintsBattery
5
\1
Loosen the negative terminal of the
battery first and remove it so that the
negative terminal cannot come into
contact with the pole terminal.
\1
Remove the cover from the positive
terminal.
\1
Loosen the positive terminal and re-
move it.
Starter battery
\1
Disconnect the battery
(\2
page 577).
1Central gas release cover connection
2Vent hose with connection angle
\1
Pull vent hose with connection angle 2
from connection
1
of the gas re-
lease cover.
3
Retainer
\1
Loosen the bolts of retainer
3
pre-
venting the battery from moving
around.
Removing the battery
nf_BA.book Page 578 Friday, January 25, 2008 3:53 PM
Page 581 of 666
579 Practical hints
Battery
5
\1
Pull retainer
3
upward and slide the
battery out of its anchorage in the di-
rection of travel.
\1
Fold the clip upward and remove the
battery from the battery recess.
Auxiliary battery* in the engine com-
partment
\1
Disconnect the battery
(\2
page 577).
\1
Unscrew the bolts preventing the
battery from moving around in the
engine compartment.
\1
Remove the battery retainer and
take out the battery.
\1
Recharge the removed battery. Ob-
serve the notes in the operating in-
structions for your battery charger.
\1
Reinstall the battery in the reverse
order.Recharging the battery!
CAUTION
Only charge the installed battery us-
ing a battery charger tested and ap-
proved by the manufacturer. These
devices allow you to charge the bat-
tery while it is installed. The vehicle’s
electronics system may otherwise be
damaged.
nf_BA.book Page 579 Friday, January 25, 2008 3:53 PM
Page 582 of 666

580 Practical hintsBattery
5
\1
Switch off all electrical consumers.
\1
Connect the positive terminal and
secure the cover.
\1
Connect the negative terminal.
Warning
G
Only charge the battery in well-ventilated
areas. As the battery is being charged,
gases can escape and generate minor ex-
plosions, which can injure you and others
and may cause damage to the paintwork
or permit acid corrosion on the vehicle.
During the charge procedure, there is a
risk of acid burns due to gases escaping
from the battery. Do not, therefore, lean
over the battery while it is being re-
charged.
iIt is also possible to charge the start-
er battery using the jump-starting
connection point in the engine com-
partment (
\2
page 581).
Reconnecting the battery!
CAUTION
Never swap the terminal clamps.
Otherwise, the vehicle’s electronics
system may be damaged. After re-
connecting the battery, you must re-
set the electric sliding door*
(\2
page 92).
nf_BA.book Page 580 Friday, January 25, 2008 3:53 PM
Page 583 of 666

581 Practical hints
Jump-starting
5
\3 Jump-startingIf the starter battery in the battery re-
cess in the driver’s footwell is dis-
charged, the engine can be jump-started
from another vehicle using jump leads.
For this purpose, the vehicle is equipped
with a jump-starting connection point.
Please note:
\4
Jump-starting must only be per-
formed when the engine and catalyt-
ic converter are cold.
\4
Do not start the engine if the battery
has frozen. Let the battery thaw out
first.
\4
Only use a battery of the same rated
voltage and of approximately the
same capacity for jump-starting.
\4
Only use jumper cables of adequate
cross-section with insulated battery
terminal clamps.
iThe auxiliary battery* in the engine
compartment is not suitable for
jump-starting operations. Only use
the jump-starting connection in the
engine compartment if you require
jump-starting assistance or wish to
provide jump-starting assistance.
!
CAUTION
Avoid repeated and lengthy starting
attempts.
Never start the vehicle using a rapid
battery charger.
Warning
G
Avoid creating sparks. Keep naked flames
away from the battery, and do not smoke.
Comply with safety precautions and spe-
cial protective measures when handling
batteries (\2page 335).
nf_BA.book Page 581 Friday, January 25, 2008 3:53 PM
Page 584 of 666

582 Practical hintsJump-starting
5
\1
Make sure that the two vehicles do
not touch.
\1
Apply the handbrake or move the se-
lector lever to position
P.
\1
Switch off all electrical consumers.
\1
Switch on the battery isolating
switch* if necessary (
\2
page 338).
\1
Remove the key from the ignition
lock.
\1
Open the hood (
\2
page 318).
The jump-starting connection point is on
the left-hand side of the air cleaner in
the engine compartment when looking
in the direction of travel.
Jump-starting connection point
1Positive terminal clamp of jumper cable\1
Remove the positive terminal cover
from the donor battery.
\1
Connect positive terminal of donor
battery
2
to jump-starting connec-
tion point 1
with the jumper cable.
Start with the donor battery.
\1
Using red positive terminal clamp
1
of the jumper cable, slide the red
protective cap of the jump-starting
connection point back with a clock-
wise turn and connect the positive
terminal clamp of the jumper cable
to the positive terminal of the jump-
starting connection point.
nf_BA.book Page 582 Friday, January 25, 2008 3:53 PM