Mercedes-Benz ML320. Manual — part 112

275

Practical hints

Flat tire

왘

On wheel to be changed, loosen but do
not yet remove the wheel bolts (ap-
proximately one full turn with wrench).

The jack take-up brackets are located di-
rectly behind the front wheel housings and
in front of the rear wheel housings.

1 Take-up bracket
2 Jack

왘

Place jack on firm ground.

왘

Position jack 2 under the take-up
bracket 1 so that it is always vertical
(plumb-line) as seen from the side,
even if the vehicle is parked on an in-
cline.

왘

Jack up the vehicle until the wheel is a
maximum of 1.2 in (3 cm) from the
ground. Never start engine while vehi-
cle is raised.

Warning!

G

The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.

Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use, es-
pecially on hills. Always try to use the jack
on level surface. Make sure that the jack
arm is fully seated in the jack take-up brack-
et. Always lower the vehicle onto sufficient
capacity jackstands before working under
the vehicle.

!

Do not position the jack on the body of
the vehicle, as this may cause damage
to the vehicle.

276

Practical hints

Flat tire

Removing the wheel

왘

Unscrew and remove all wheel bolts.

왘

Remove the remaining bolts.

왘

Grip the wheel from the sides and re-
move it.

Mounting the new wheel

왘

Clean contact surfaces of wheel and
wheel hub.

왘

Install spare wheel on wheel hub.

왘

Insert wheel bolts and tighten them
slightly.

Lowering the vehicle

왘

Lower vehicle by turning crank coun-
terclockwise until vehicle is resting ful-
ly on its own weight.

왘

Remove the jack.

!

Do not place wheel bolts in sand or dirt.
This could result in damage to the bolt
and wheel hub threads.

!

To avoid paint damage, place wheel flat
against hub and hold it there while in-
stalling first wheel bolt.

Warning!

G

Always replace wheel bolts that are dam-
aged or rusted.

Never apply oil or grease to wheel bolts.

Damaged wheel hub threads should be re-
paired immediately. Do not continue to drive
under these circumstances! Contact an au-
thorized Mercedes-Benz Light Truck Center
or call Roadside Assistance.

Incorrect wheel bolts or improperly tight-
ened wheel bolts can cause the wheel to
come off. This could cause an accident.
Make sure to use the correct wheel bolts.

Warning!

G

Use only genuine equipment
Mercedes-Benz wheel bolts. Other wheel
bolts may come loose.

Do not tighten the wheel bolts when the ve-
hicle is raised. Otherwise the vehicle could
tip over.

277

Practical hints

Flat tire

1-5 Wheel bolts

왘

Tighten the five wheel bolts evenly, fol-
lowing the diagonal sequence illustrat-
ed (1 to 5), until all bolts are tight.
Observe a tightening torque of
110 lb-ft (150 Nm).

왘

Store jack and tool kit.

Warning!

G

Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
110 lb-ft (150 Nm).

i

The removed road wheel cannot be
stored in the spare wheel carrier, but
should be transported in the rear cargo
compartment wrapped in a protective
cover supplied with the vehicle.

The protective cover is located in the
rear cargo compartment behind the
cover in the right side trim panel.

278

Practical hints

Battery

왔

Battery

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

1 Negative terminal
2 Positive terminal

Warning!

G

Failure to follow these instructions can re-
sult in severe injury or death.

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

컄

page 223).

Never lean over batteries while connecting,
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 explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc.

!

Never loosen or detach battery termi-
nal clamps while the engine is running
or the key is in the steering lock. Other-
wise the alternator and other electronic
components could be severely dam-
aged.

Have the battery checked regularly by
an authorized Mercedes-Benz Light
Truck Center.

Refer to Service Booklet for mainte-
nance intervals or contact your autho-
rized Mercedes-Benz Light Truck
Center for further information.

Warning!

G

Do not place metal objects on the battery as
this could result in a short circuit.

Use leak-proof battery only to avoid the risk
of acid burns in the event of an accident.