Mercedes-Benz ML320. Manual — part 113

279

Practical hints

Battery

Disconnecting the battery

왘

Depress parking brake firmly or move
gear selector lever to position P.

왘

Turn off all electrical consumers.

왘

Remove key from the steering lock.

왘

Open the hood (

컄

page 217).

왘

Disconnect the battery negative lead.

왘

Remove the cover from the positive ter-
minal.

왘

Disconnect the battery positive lead.

Removing the batteries

왘

Remove the screw securing the bat-
tery.

왘

Remove the battery support and brack-
et. Take out the battery.

Charging and reinstalling batteries

왘

Charge battery in accordance with the
instructions of the battery charger
manufacturer.

왘

Reinstall the charged battery. Follow
the previously described steps in re-
verse order.

Reconnecting the batteries

왘

Turn off all electrical consumers.

왘

Connect the positive lead and fasten its
cover.

왘

Connect the negative lead.

Warning!

G

With a disconnected battery

앫

you will no longer be able to turn the key
in the steering lock

앫

the gear selector lever will remain
locked in position P

Warning!

G

Never charge a battery while still installed in
the vehicle. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.

!

Never invert the terminal connections!

!

The battery, its filler caps and the vent
tube must always be securely installed
when the vehicle is in operation.

280

Practical hints

Battery

Batteries contain materials that can harm
the environment if disposed of improperly.
Large 12-volt storage batteries contain
lead. Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.

i

The following procedures must be car-
ried out following any interruption of
battery power (e.g. due to reconnec-
tion):

앫

Set the clock (

컄

page 118).

앫

Set the date in trip computer
(

컄

page 186).

앫

Calibrate the compass
(

컄

page 188).

앫

Resynchronize the ESP
(

컄

page 246).

앫

Resynchronize side power windows
(

컄

page 146).

앫

Resynchronize sliding/pop-up
roof*(

컄

page 149).

281

Practical hints

Jump starting

왔

Jump starting

If the battery is discharged, the engine can
be started with jumper cables and the bat-
tery of another vehicle. Observe the follow-
ing:

앫

Jump starting should only be performed
when the engine and catalytic convert-
er are cold.

앫

Do not start the engine if the battery is
frozen. Let the battery thaw out first.

앫

Only jump start from batteries with the
same voltage rating (12 V). Jump start-
ing with a more powerful battery could
damage the vehicle's electrical system,
which will not be covered by the
Mercedes-Benz Limited Warranty.

앫

Use only jumper cables with sufficient-
cross-section and insulated terminal
clamps.

앫

Always make sure the jumper cables
are not on or near pulleys, fans or other
parts that move when the engine is
started or running.

Warning!

G

Failure to follow these directions will cause
damage to the electronic components, and
can lead to a battery explosion and severe
injury or death.

Never lean over batteries while connecting
or jump starting, you might get injured.

Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water, and seek
medical help if necessary.

A battery will also produce hydrogen gas,
which is flammable and very explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking, etc.

Attempting to jump start a frozen battery
can result in it exploding, causing personal
injury.

Read all instructions before proceeding.

!

Avoid repeated and lengthy starting at-
tempts.

Do not attempt to start the engine us-
ing a battery quick charge unit.

If engine does not run after several un-
successful starting attempts, have it
checked at the nearest authorized
Mercedes-Benz Light Truck Center.

Excessive unburned fuel generated by
repeated failed starting attempts may
damage the catalytic converter and
may present a fire risk.

Make sure the jumper cables do not
have loose or missing insulation.

Make sure the cable clamps do not
touch any other metal part while the
other end is still attached to a battery.

282

Practical hints

Jump starting

The battery is located on the right side of
the engine compartment.

왘

Make sure the two vehicles do not
touch.

왘

Turn off all electrical consumers.

왘

Apply parking brake.

왘

Shift gear selector lever to position P.

왘

Open the hood.

왘

Connect positive terminals 1 and 4
of the batteries with the jumper cable.
Clamp cable to positive terminal 4 of
charged battery first.

1 Positive terminal of discharged battery
2 Negative terminal of discharged

battery

3 Negative terminal of charged battery
4 Positive terminal of charged battery

왘

Start engine of the vehicle with the
charged battery and run at idle speed.

왘

Connect negative terminals 2 and 3
of the batteries with the jumper cable.
Clamp cable to negative terminal 3 of
charged battery first.

왘

Start the engine of the disabled vehi-
cle.

Now you can turn on the electrical
consumers. Do not turn on the lights under
any circumstances.

왘

Remove the jumper cables first from
the negative terminals 2 and 3 and
then from positive terminals 1
and 4.

You can now turn on the lights.

왘

Have the battery checked at the
nearest authorized Mercedes-Benz
Light Truck Center.

Warning!

G

Keep flames or sparks away from battery.
Do not smoke.

Observe all safety instructions and precau-
tions when handling automotive batteries
(

컄

page 223).

!

Never invert the terminal connections.

!

Do not tow-start the vehicle.