2008 MERCEDES-BENZ GL320 belt

Contents
Introduction.......................................... 9
Product information ................................ 9
Operator’s Manual ............................... 10
Service and warranty information .. 10
Important notice for California
retail buyers and lessees of
Mercedes-Benz automobiles .......... 11
Maintenance .................................. 12
Roadside Assistance ...................... 12
Change of address or ownership.... 13
Operating your vehicle
outside the USA or Canada ............ 13
Where to find it .................................... 15
Symbols ............................................... 16
Operating safety .................................. 17
Proper use of the vehicle ............... 17
Problems with your vehicle .................. 18
Reporting safety defects...................... 19
Reporting safety defects ................ 19
Vehicle data recording ......................... 20
Information regarding electronic
recording devices ........................... 20At a glance.......................................... 21
Exterior view ......................................... 22
Cockpit ................................................. 24
Instrument cluster ................................ 26
Instrument cluster ................................ 28
Multifunction steering wheel ................ 30
Center console ..................................... 31
Upper part (Vehicles without
enhanced off-road package*) ......... 31
Upper part (Vehicles with
enhanced off-road package*) ......... 32
Lower part ...................................... 33
Overhead control panel ........................ 34
Door control panel................................ 35
Storage compartments ......................... 36Getting started................................... 39
Unlocking ............................................. 40
Unlocking with the SmartKey ......... 40
Unlocking with KEYLESS-GO*......... 41
Starter switch positions .................. 41
Adjusting .............................................. 45
Seats .............................................. 45
Steering wheel ................................ 48
Mirrors ............................................ 51
Driving .................................................. 53
Fastening the seat belts ................. 53
Starting the engine ......................... 56
Parking brake ................................. 59
Driving off ....................................... 60
Switching on headlamps ................. 61
Turn signals .................................... 62
Windshield wipers ........................... 62
Rear window wiper/washer ............ 64
Problems while driving.................... 65
Parking and locking .............................. 67
Parking brake ................................. 67
Switching off headlamps................. 68
Turning off the engine..................... 68
Releasing seat belts........................ 70
Locking ........................................... 70
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Contents
Safety and Security........................... 73
Occupant safety................................... 74
Air bags .......................................... 76
Occupant Classification System ..... 81
Seat belts ....................................... 86
Active head restraint ...................... 90
Rear head restraints ....................... 91
Children in the vehicle .................... 91
Blocking of rear door
window operation ........................... 98
Panic alarm ........................................ 100
Activating ..................................... 100
Deactivating ................................. 100
Driving safety systems ....................... 101
ABS .............................................. 101
BAS .............................................. 103
ESP
®............................................. 103
EBP............................................... 107
4-ETS ............................................ 107
Anti-theft systems.............................. 109
Immobilizer................................... 109
Anti-theft alarm system ................ 109
Controls in detail............................. 111
Locking and unlocking ....................... 112
SmartKey ..................................... 112
SmartKey with KEYLESS-GO* ...... 115
Checking the batteries in the
SmartKey or SmartKey with
KEYLESS-GO* .............................. 120
Loss of the SmartKey or
SmartKey with KEYLESS-GO* ...... 120
Opening the doors
from the inside ............................. 120
Tailgate/Power tailgate*.............. 121
Automatic central locking ............ 128
Locking and unlocking
from the inside ............................. 128
Seats ................................................. 130
Easy-entry/exit feature for
third-row seats ............................. 130
Front seat active head restraints . 133
Rear seats .................................... 133
Lumbar support............................ 137
Multicontour seat* ....................... 138
Seat heating* ............................... 138
Seat ventilation* .......................... 140Memory function* ............................. 141
Storing positions into memory ..... 142
Recalling positions from memory. 142
Lighting ............................................. 143
Exterior lamp switch .................... 143
Combination switch ..................... 147
Corner-illuminating
front fog lamps*........................... 147
Hazard warning flasher ................ 149
Interior lighting ............................ 149
Door entry lamps ......................... 151
Cargo compartment lamp ............ 151
Instrument cluster ............................. 152
Adjusting instrument
cluster illumination ...................... 153
Resetting trip odometer ............... 153
Tachometer.................................. 153
Outside temperature indicator ..... 153
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Contents
Replacing wiper blades ...................... 516
Front wiper blades ....................... 516
Rear wiper blade .......................... 517
Flat tire .............................................. 519
Preparing the vehicle.................... 519
Mounting the spare wheel ............ 520
Bleeding the fuel system
(diesel engine only) ............................ 527
Battery ............................................... 528
Disconnecting, removing,
reinstalling and
reconnecting the battery .............. 530
Charging the battery .................... 535
Jump starting ..................................... 536
Towing the vehicle ............................. 538
Installing towing eye bolt.............. 540
Stranded vehicle .......................... 542
Fuses ................................................. 543
Fuse box in engine compartment . 544
Fuse box in cargo compartment ... 544
Fuse box in
passenger compartment .............. 545
Emergency engine shut-down ...... 545
Technical data................................. 547
Parts service ...................................... 548
Warranty coverage............................. 549
Loss of Service and Warranty
Information Booklet ..................... 549
Identification labels ........................... 550
Layout of poly-V-belt drive ................. 552
GL 320 CDI .................................. 552
GL 450, GL 550............................ 552
Engine................................................ 553
Rims and tires.................................... 555
Same size tires ............................. 556
Minispare wheel ........................... 558
Electrical system ............................... 559
Main Dimensions ............................... 560
Weights.............................................. 561Fuels, coolants, lubricants ................. 562
Capacities .................................... 562
Engine oils ................................... 564
Engine oil additives ...................... 564
Air conditioning refrigerant .......... 564
Brake fluid.................................... 564
Premium unleaded gasoline
(gasoline engine).......................... 565
Fuel requirements ........................ 565
Gasoline additives
(gasoline engine).......................... 566
Coolants ...................................... 567
Windshield washer system and
headlamp cleaning system*......... 569
Index................................................. 571
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14 Introduction
Operator’s Manual
Warning!G
This Sport Utility Vehicle is designed for both on-road and off-road use. It can go places and perform tasks for which conventional 2-wheel drive
passenger cars are not intended. This vehicle will handle and maneuver differently from conventional passenger cars in driving conditions which
may occur on streets, highways and off-road use.
This vehicle has a higher ground clearance and a higher center of gravity than many passenger cars. As with other vehicles of this type, if you make
sharp turns at excessive speeds or abrupt maneuvers, the vehicle may roll over or may go out of control and crash. Utility vehicles have a signifi-
cantly higher rollover rate than other types of vehicles. Failure to operate this vehicle safely may result in an accident, rollover of the vehicle, and
severe or fatal injury.
Before you start to drive this vehicle, read the Operator’s Manual. Take time to become familiar with the driving characteristics of this vehicle. Be
sure you are familiar with all vehicle controls. Learn how your vehicle handles on different road surfaces. Do not attempt sharp turns at excessive
speeds or abrupt maneuvers or other unsafe driving actions that can cause loss of vehicle control. When driving off-road or working the vehicle
hard, do not overload it. And, always wear your seat belts at all times. In a rollover crash, an unbelted person is significantly more likely to die than
a person wearing a seat belt.
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29 At a glance
Instrument cluster
ItemPage
8Multifunction display with:

Trip odometer153

Main odometer155
9Tachometer with:
442
qPreglow indicator
lamp1
1Vehicles with Diesel engine only.
57
1Supplemental
Restraint System
(SRS) indicator lamp74,
446
?Engine malfunction
indicator lamp,
USA only439
±Engine malfunction
indicator lamp,
Canada only439
AHigh beam headlamp
indicator61,
147
ItemPage
aFuel gauge with:
Fuel tank reserve warning
lamp446
4Fuel filler flap indica-
tor: The fuel filler flap
is located on the rear
right-hand side.374
bMultifunction display
with:

Outside temperature
indicator or digital speed-
ometer (depending on
selected setting in the
control system)155,
173

Transmission position
indicator192

Gear range indicator197
ItemPage

Distance warning func-
tion* indicator
(Canada only)183

LOW RANGE mode*
indicator202

Downhill Speed Regula-
tion (DSR) indicator275

Off-road driving program
indicator278

Rear window wiper
indicator64

Set speed for

Cruise control

Distronic*
(Canada only)
257
266
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45 Getting started
Adjusting
Adjusting
Seats
Warning!G
All seat, head restraint, steering wheel, and
rear view mirror adjustments, as well as fas-
tening of seat belts, must be done before
the vehicle is put into motion.
Warning!G
Do not adjust the driver’s seat while driving.
Adjusting the seat while driving could cause
the driver to lose control of the vehicle.
Never ride in a moving vehicle with the seat
backrest in an excessively reclined position
as this can be dangerous. You could slide
under the seat belt in a collision. If you slide
under it, the belt would apply force at the ab-
domen or neck. That could cause serious or
fatal injuries. The seat backrest and seat
belts provide the best restraint when the
wearer is in a position that is as upright as
possible and belts are properly positioned
on the body.
Warning!G
Your seat must be adjusted so that you can
correctly fasten your seat belt (
page 53).
Observe the following points:

Adjust the backrest until your arms are
slightly angled when holding the steer-
ing wheel

Adjust the seat to a comfortable seating
position that still allows you to reach the
accelerator/brake pedal safely. The po-
sition should be as far back as possible
with the driver still able to operate the
controls properly.

Adjust the head restraint so that it is as
close to the head as possible and the
center of the head restraint supports the
back of the head at eye level.

Never place hands under the seat or
near any moving parts while a seat is be-
ing adjusted.
Failure to do so could result in an accident
and/or serious personal injury.
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle.
Even with the SmartKey or the SmartKey
with KEYLESS-GO* removed from the
starter switch or the SmartKey with
KEYLESS-GO* removed from the vehicle,
the power seats can be operated.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. A child’s unsupervised access to a
vehicle could result in an accident and/or
serious personal injury.
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53 Getting started
Driving
Driving
Fastening the seat belts
Warning!G
Make sure that absolutely no objects are ob-
structing the pedal’s range of movement.
Keep the driver’s footwell clear of all obsta-
cles. If there are any floormats or carpets in
the footwell, make sure that the pedals still
have sufficient clearance.
During sudden driving or braking maneu-
vers, the objects could get caught between
the pedals. You could then no longer brake
or accelerate. This could lead to accidents
and injury.
Warning!G
Always fasten your seat belt before driving
off. Always make sure your passengers are
properly restrained.
Failure to wear and properly fasten and po-
sition your seat belt greatly increases your
risk of injuries and their likely severity in an
accident. You and your passengers should
always wear seat belts.
If you are ever in an accident, your injuries
can be considerably more severe without
your seat belt properly buckled. Without
your seat belt buckled, you are much more
likely to hit the interior of the vehicle or be
ejected from it. You can be seriously injured
or killed.
In the same crash, the possibility of injury or
death is lessened if you are wearing your
seat belt. The air bags can only provide the
protection they were designed to afford if
the occupants are using their seat belts
(
page 86).
Warning!G
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seat-
ing position. Thus, we strongly recommend
that children be placed in the rear seats.
Regardless of seating position, children
12 years old and under must be seated and
properly secured in an appropriately sized
infant restraint, toddler restraint, or booster
seat recommended for the size and weight
of the child. For additional information, see
“Children in the vehicle” (
page 91).
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle
and/or the child is not properly secured in
the child restraint.
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54 Getting started
Driving
1Seat belt outlet
2Latch plate
3Buckle
4Release button
Warning!G
Never ride in a moving vehicle with the seat
backrest in an excessively reclined position
as this can be dangerous. You could slide
under the seat belt in a collision. If you slide
under it, the belt would apply force at the ab-
domen or neck. That could cause serious or
even fatal injuries. The seat backrest and
seat belt provide the best restraint when the
wearer is in a position that is as upright as
possible and the belt is properly positioned
on the body.
Warning!G
Never let more people ride in the vehicle
than there are seat belts available. Make
sure everyone riding in the vehicle is cor-
rectly restrained with a separate seat belt.
Never use a seat belt for more than one per-
son at a time.
Warning!G
Read and observe the additional warning no-
tices printed in the “Safety and Security”
section (
page 78) and (page 86).
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