engine MERCEDES-BENZ GL320CDI 2007 X164 Owner's Manual

503 Practical hints
Opening/closing in an emergency
Opening/closing in an emergency
Power tilt/sliding sunroof*
You can open or close the tilt/sliding
sunroof manually should an electrical
malfunction occur.
The tilt/sliding sunroof drive is located
behind a cover on the overhead control
panel.
1Cover
Remove the SmartKey from the starter
switch.Vehicles with KEYLESS-GO*:
Turn off the engine by pressing the
KEYLESS-GO* start/stop button
(
page 70).
Open the driver’s door (this puts
the starter switch in position 0, same
as with the SmartKey removed from
the starter switch). The driver’s door
can then be closed again.
Press on cover1 at the position indi-
cated by the arrow.
Take off cover1.
2Crank
Take crank2 out of the Operator’s
Manual pouch.
Insert crank2 into hole.
Turn crank2 clockwise to

slide sunroof closed

raise sunroof at the rear
Turn crank2 counterclockwise to

slide sunroof open

lower sunroof at the rear
iThe hole may be covered by a noise
reduction padding. You will then have to push the
crank through the padding at the perforated
mark.
iTurn crank2 slowly and smoothly.
The tilt/sliding sunroof must be synchronized if
it has been operated manually (
page 255).

523 Practical hints
Flat tire
Flat tire
Preparing the vehicle
Park the vehicle in a safe distance from
moving traffic on a hard, flat surface
when possible.
Turn on the hazard warning flasher
(
page 151).
Turn the steering wheel so that the
front wheels are in a straight-ahead
position.
Set the parking brake (page 60).
Set the automatic transmission to park
positionP (
page 194).
Turn off the engine (page 41).
Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO*:
Turn off the engine by pressing the
KEYLESS-GO* button once
(
page 70).
Open the driver’s door (this puts
the starter switch in position0,
same as with the SmartKey re-
moved from the starter switch). The
driver’s door then can be closed
again.
Remove the KEYLESS-GO*
start/stop button from the starter
switch (
page 43).
Have any passenger exit the vehicle at
a safe distance from the roadway.
Warning!G
The dimensions of the Minispare wheel are
different from those of the road wheels. As
a result, the vehicle handling characteristics
change when driving with a Minispare wheel
mounted. Adapt your driving style accord-
ingly.
The Minispare wheel is for temporary use
only. When driving with a Minispare wheel
mounted, ensure proper tire pressure and
do not exceed a vehicle speed of
50 mph (80 km/h).
Drive to the nearest Mercedes-Benz Light
Truck Center as soon as possible to have the
Minispare wheel replaced with a regular
road wheel.
Never operate the vehicle with more than
one spare wheel mounted.
Do not switch off the ESP
® when a
Minispare wheel is mounted.
Warning!G
Your vehicle is equipped with air suspen-
sion. Do not open or close any doors or the
tailgate while mounting a spare wheel. The
vehicle could rise or lower to a previously se-
lected level. You or others could be injured
as a result.
iOpen door only when conditions are safe to
do so.

526 Practical hints
Flat tire
Removing the wheel
1Alignment bolt
Unscrew upper-most wheel bolt and
remove it.
Replace this wheel bolt with alignment
bolt1 supplied with the tool kit
(
page 495).
Remove the remaining bolts.
Remove the wheel.Mounting the new wheel
1Wheel bolt for 19" and 20" light alloy
wheels
2Wheel bolt for Minispare wheel (locat-
ed in vehicle tool kit (
page 495))
Clean contact surfaces of wheel and
wheel hub.
Warning!G
The jack is intended only for lifting the
vehicle briefly for wheel changes. It is not
suited for performing maintenance work
under the vehicle.

Never start the engine when the vehicle
is raised.

Never lie down under the raised vehicle.
!Do not place wheel bolts in sand or dirt. This
could result in damage to the bolts and wheel
hub threads.
!Wheel bolts2 must be used when mount-
ing the Minispare wheel. The use of any wheel
bolts other than wheel bolts2 for the Minispare
wheel will damage the vehicle’s brakes.


529 Practical hints
Bleeding the fuel system (diesel engine only)
Bleeding the fuel system (diesel engine only)
Driving the vehicle until the fuel tank is
empty is not recommended. Otherwise, air
may be sucked into the fuel system. If this
happens, the? malfunction indicator
lamp (USA only) or the± malfunction
indicator lamp (Canada only) comes on
and the engine may not start immediately
after refueling the vehicle.
After refueling:
Make sure the automatic transmission
is set toP.
The gear position indicator in the multi-
function display should be on
P.
Do not depress the accelerator.
Turn the SmartKey in the starter switch
to position 2 for at least 10 seconds
(
page 41).
Return the SmartKey in the starter
switch to position 0 (
page 41).
Turn the SmartKey in the starter switch
to position3 (
page 41) and hold it
there for a maximum of 40 seconds or
until the engine runs surge-free.
If the engine does not start:
Wait for approximately 2 minutes.
Turn the SmartKey in the starter switch
to position3 (
page 41) and hold it
there for a maximum of 40 seconds or
until the engine runs surge-free.
If the engine still does not start, do not
make any further attempts to start the
engine. Contact an authorized
Mercedes-Benz Light truck Center or call
Roadside Assistance (
page 336).iVehicles with KEYLESS-GO*: If necessary,
remove the KEYLESS-GO start/stop button from
the starter switch (
page 43).iWhen the ?malfunction indicator lamp
(USA only) or the ±malfunction indicator
lamp (Canada only) has been illuminated for the
above condition, it will remain illuminated until
the engine was cycled on and off four times in a
row.

531 Practical hints
Battery
!The battery is a valve-regulated lead acid
(VRLA) battery, also referred to as “fleece” bat-
tery. Such batteries do not require topping-up of
the electrolyte level. VRLA batteries therefore do
not have cell caps and the battery cover is
non-removable. Do not attempt to open the bat-
tery as otherwise the battery will be damaged.
Even though VRLA batteries do not require top-
ping-up of the electrolyte level and cannot be
opened to check the electrolyte level, the bat-
tery condition must be checked periodically by
performing a battery conductance test. Refer to
Maintenance Booklet for battery condition test-
ing intervals.
As with any other battery, the battery may dis-
charge if the vehicle is not operated for an ex-
tended period of time. You can connect a battery
maintenance charge unit tested and approved
for use on your vehicle model or disconnect the
battery to prevent battery discharge. Contact an
authorized Mercedes-Benz Light Truck Center
for more information.!The factory-equipped VRLA battery is
leak-proofed. Only use a battery as replacement
that has the same security features and is of
identical size, voltage, and capacity as the
factory-equipped battery.
The battery, the battery ventilation hose
(
page 536) and the lateral plug (page 536)
must always be securely installed when the
vehicle is in operation.
Warning!G
Jump starting must only be done using the
jump-start contacts located in the engine
compartment (
page 538).
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
(
page 530).
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.

532 Practical hints
Battery
Disconnecting, removing, reinstalling
and reconnecting the battery
Step 1 (Disconnecting)
Set the automatic transmission to
positionP (
page 194).
Firmly depress the parking brake
(
page 68).
Turn off the engine (page 69).
Leave the ignition switched on
(
page 42).
!Never loosen or detach battery terminal
clamps while the engine is running or the
SmartKey is in the starter switch. Otherwise the
alternator and other electronic components
could be severely damaged.
Have the battery checked regularly by an
authorized Mercedes-Benz Light Truck Center.
Contact your authorized 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.
Warning!G
Disconnecting, removing, reinstalling and
reconnecting the battery is a complicated
and technically demanding procedure that
a l s o r e q u i r e s s a f e t y p r e c a u t i o n s t o a v o i d t h e
risk of injury. We strongly recommend that it
be performed by a qualified technician or an
authorized Mercedes-Benz Light Truck
Center only. Please read the instructions
fully before beginning operation and only
undertake it if you feel fully capable of
performing all of the tasks involved as de-
scribed in these instructions. Observe all
safety instructions and precautions when
handling automotive batteries
(
page 530). Performing the tasks involved
incorrectly can cause damage to the vehicle
and impair the operating safety of the
vehicle, and/or cause severe injury to you
or others.
iWith a disconnected battery you will no
longer be able to turn the SmartKey in the starter
switch and pressing the KEYLESS-GO*
start/stop button will have no effect.
iIf your battery is discharged, the vehicle
must be jump started (
page 538) using the
jump start contacts in the engine compartment,
or an accessory battery charge unit* approved
by Mercedes-Benz must be connected using the
jump start contacts in the engine compartment
(see separate instructions for the accessory bat-
tery charge unit*) before any of the following
steps can be performed. If the battery cannot be
jumped or charged, please contact an
authorized Mercedes-Benz Light Truck Center.

533 Practical hints
Battery
Switch off all electrical consumers.
Read and observe safety instructions
and precautions (
page 530).
Open the front passenger door.
Move the front passenger seat to the
most forward position (
page 46).Step 2 (Disconnecting)
1Battery cover
Enter the rear passenger compartment
and remove main battery cover1.Step 3 (Disconnecting)
2Perforated floor carpetCut the floor carpet2 along the
dotted white line (see illustration) until
you reach the perforated part. Start
cutting at the point indicated by the
arrows. Cut carpet using a sharp object
(knife etc.).
Enter the front passenger compart-
ment.
Move the front passenger seat to the
most rearward position (
page 46).
iIf the vehicle battery is discharged and you
had the vehicle jump started:

Leave the engine running.

Complete step 1, starting with switching off
all electrical consumers.

Continue with step 2.

When the front passenger seat is in the most
forward position, turn off the engine.
iOpen doors only when conditions are safe to
do so.


534 Practical hints
Battery
2Perforated floor carpet, unfolded
Fold the floor carpet piece2 in
direction of the arrow.
Move the front passenger seat to the
most forward and upward position
again (
page 46).
Switch off the ignition (page 42).
Remove SmartKey from starter switch.
Vehicles with KEYLESS-GO*:
Make sure the vehicle’s on-board
electronics have status0 (Turn off
the engine or all electrical systems
using the KEYLESS-GO start/stop
button. Open the driver’s door. With
the driver’s door open, the vehicle’s
on-board electronics have status0,
same as with the SmartKey
removed from the starter switch).
Enter the rear passenger compartment
again.Step 4 (Disconnecting)
3Air channel
4Clip with pin insert
Pull pin out of clip4 in direction of
arrow.
Pull clip with pin4 outwards.
Remove air channel3 by pulling it out
in direction of arrow.
iIf the vehicle battery is discharged and you
had the vehicle jump started, turn off the engine.

537 Practical hints
Battery
Connect the positive lead to the posi-
tive terminal and fasten it’s cover
(
page 535).
Connect the negative lead to the nega-
tive terminal (
page 535).
Charging the battery
If the battery is discharged, the battery can
be charged using the jump-start contacts
located in the engine compartment
(
page 539).
Charge the battery in accordance with
the instructions of the battery charger
manufacturer.
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.
!Never invert the terminal connections!
iThe following procedures must be carried
out following any interruption of battery power
(e.g. due to reconnection):

Set the clock (page 176).
Vehicles with COMAND system with naviga-
tion module*: Time and date are set auto-
matically.

Synchronize the door windows
(
page 251).

Synchronize the power tilt/sliding sunroof*
(
page 255).

Synchronize the power folding exterior rear
view mirrors* (
page 212).
Warning!G
Never charge a battery while still installed in
the vehicle unless the accessory battery
charge unit approved by Mercedes-Benz is
being used. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.
An accessory battery charge unit specially
adapted for Mercedes-Benz vehicles and
tested and approved by Mercedes-Benz is
available, permitting the charging of the
battery in its installed position. Contact an
authorized Mercedes-Benz Light Truck
Center for information and availability.
Charge battery in accordance with the
separate instructions for the accessory
battery charger.

538 Practical hints
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:

Jump starting should only be performed
using the jump-start contacts located
in the engine compartment
(
page 539).

Jump starting should only be performed
when the engine and catalytic
converter
1 are cold.

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

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

Only use jumper cables with sufficient
cross-section and insulated terminal
clamps.

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.
1Vehicles with gasoline engine only.
!Do not tow-start the vehicle.
!Avoid repeated and lengthy starting
attempts.
Do not attempt to start the engine using a
battery quick charge unit.
If the engine does not run after several unsuc-
cessful 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 catalyt-
ic converter
1.
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 at-
tached to a battery.