tow MERCEDES-BENZ GL SUV 2009 Owners Manual

Automatic transmission
DIRECT SELECT lever .......................92
Display mes-
sage .............................. 213, 216, 217
Driving tips ...................................... 94
Emergency running mode ..............244
Gear indicator .................................. 93
Kickdown ......................................... 94
Malfunction ................................... .244
Program selector button ..................95
Shift ranges ..................................... 94
Trailer towing ................................... 94
Transmission positions ....................93
Auxiliary heating ............................... 147
Display message .................... 231, 232
Notes ............................................. 147
Remote control .............................. 148
Setting (on-board computer) .......... 107
Auxiliary ventilation ..........................147 B
Backrest angle Adjusting (2nd row of seats) ............67
Ball coupling
Fitting ............................................ 194
Folding in ....................................... 198
Folding out ..................................... 193
Removing ....................................... 198
BAS (Brake Assist) ............................... 50
Battery Changing (auxiliary heating
remote control) .............................. 254
Charging ........................................ 275
Checking (key) ............................... 253
Check lamp (key )........................... 253
Disconnecting ................................ 273
Display message ............................ 220
Jump-starting ................................. 276
Maintenance (vehicle) .................... 272
Reconnecting ................................. 276
Removing/fitting ........................... 274
Vehicle battery .............................. 272
Belt force limiters
Activation ......................................... 35
Belt height adjustment .......................77
Belt reel (Easy-Pack fix kit) ..............160Belt tensioners
Activation ......................................... 35
Belt warning ......................................... 77
BlueTEC
AdBlue ®
......................................... 288
Bonnet
Bonnet catch ................................. 175
Display message ............................ 219
Opening/closing ........................... 174
Bonnet release lever
Release leve r................................. 175
Boot
Automatic opening ........................... 62
Boot lid
Opening/closing .............................. 60
Brake Assist
See BAS ........................................... 50
Brake fluid .......................................... 291
Display message ............................ 221
Brake lamps
Adaptive .......................................... .51
Display message ............................ 226
Brakes
Parking brake ................................... 91
Warning lamp ........................ 235, 236
Brake system
Display message ............................ 220
Bulbs .................................................. 254
Brake lamp .................................... 260
Dipped-beam headlamps ...............258
Display message ............................ 225
Licence plate lamp ......................... 260
Main-beam headlamps ................... 258
Overview ........................................ 256
Parking lamp .......................... 258, 260
Rear foglamp ................................. 260
Replacing .............................. .258, 259
Reversing lamp .............................. 260
Side lamp ....................................... 258
Tail lamp ........................................ 260
Turn signal lamp ....................258, 260
see Lamp Index
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C
Calling up a fault see Display message .....................211
Care
Automatic car wash .......................201
Care products ................................ 201
Cleaning agents ............................. 201
Dashboard ..................................... 204
Display ........................................... 204
Exterior .......................................... 201
Headlamps ..................................... 203
High-pressure cleaners ..................202
Interior ........................................... 204
Paintwork ...................................... 202
Plastic trim .................................... 205
Reversing camera ..........................203
Seat covers .................................... 204
Sensors ......................................... 203
Steering wheel boss ......................204
Tail pipes ....................................... 203
Trailer tow hitch ............................. 203
Trim strips ..................................... 205
Wheels ........................................... 202
Windows ........................................ 202
Wiper blades .................................. 202
Wooden trim .................................. 205
Care products .................................... 201
CD player/CD changer Operating (on-board computer) .....101
Central locking
Automatic locking (on-board com-
puter) ............................................. 107
Key .................................................. 58
Central locking/unlocking button .....59
Central unlocking Key .................................................. 58
Centre console
Overview .......................................... 29
Changing a wheel
see Flat tyre
Checklist (off-road driving) ..............189
Child-proof locks Rear doors ....................................... 49
Children
in the vehicle ................................... 41
Restraint systems ............................ 41Child seat
Automatic recognition .....................43
Automatic recognition (malfunc-
tion) ............................................... 234
Child seat lock ................................ 47
Display message ............................ 216
ISOFIX .............................................. 47
On the front-passenger sea t............ 42
Recommendations ...........................46
Suitable positions ............................ 44
TopTether ........................................ 48
Child seat lock ..................................... 47
Cigarette lighter ................................ 163
Cleaning agents ................................. 201
Cleaning the sensors ........................203
Climate control Cooling with air dehumidification ..141
Misted up windows ........................146
Cockpit
Overview .......................................... 23
Collapsible wheel
Technical data ............................... 297
COMAND display
Cleaning ......................................... 204
Compass ............................................ 166
Display message ............................ 216
Constant headlamp mode
see Daytime driving lights ..............105
Consumption statistics (on-board
computer) .......................................... 110
Convenience closing ...........................87
Convenience opening ..........................87
Coolant Checking the level .........................177
Display mes-
sage ...................................... .219, 224
Mixture ratio .................................. 291
Temperature gauge ........................ 100
Cornering lights
Display message ............................ 225
Cruise control .................................... 117
Display message .................... 218, 219
Cup holder ......................................... 1536
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D
Dashboard Cleaning ........................................ .204
see Instrument cluster .....................96
see Cockpit
Dashboard lighting
see Instrument lighting ....................25
Date
Setting (on-board computer) .......... 104
Daytime driving lights ......................... 80
Setting (on-board computer) .......... 105
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 105
Interior lighting (on-board com-
puter) ............................................. 106
Diesel
Low outside temperatures .............174
Diesel engine
Winter driving ................................ 174
Differential locks ............................... 116
Display message .................... 222, 223
Digital speedometer .........................100
Setting the unit (on-board com-
puter) ............................................. 104
Dipped-beam headlamps
Display message ............................ 225
Symmetrical ................................... 193
DIRECT SELECT lever
see Automatic transmission
Display messages ............................. 211
ASSYST PLUS service interval dis-
pla y................................................ 199
Symbol messages ..................219, 249
Text messages ............................... 212
Distance warning function (vehi-
cles with Distronic) .............................53
Activating/deactivating (on-
board computer) ............................ 109
Distance warning system
see Distance warning function ....... 109
Distronic ............................................ 119
Display mes-
sage ...................................... .214, 218
Driving tips .................................... 125Door
Automatic locking ............................ 60
Display message ............................ 219
Emergency locking ........................251
Emergency unlocking ..................... 250
Opening (from the inside) ................59
Door control panel
Overview .......................................... 31
Downhill Speed Regulation
See DSR ........................................ 113
Drinks holder
see Cup holder
Driver's airbag ..................................... 38
Driver's door Unlocking (KEYLESS GO) .................58
Driver's seat position ..........................78
Driving abroad ................................... 193
Driving information Off-road ......................................... 189
Tyre ruts ........................................ 193
Driving safety systems .......................49
4ETS ................................................ 53
ABS .................................................. 50
Adaptive brake lamps ......................51
BAS .................................................. 50
Distance warning system (vehi-
cles with Distronic) ..........................53
EBV .................................................. 52
ESP ®
............................................... 51
Driving systems ................................ 117
Cruise control ................................ 117
Distronic ........................................ 119
Level control .................................. 129
Parktroni c...................................... 133
Reversing camera ..........................135
Speedtronic ................................... 126
Driving tips .......................................... 94
Braking .......................................... 187
Distronic ........................................ 125
Driving abroad .............................. 193
Driving on wet roads .....................188
Fording ................................. 188, 192
Trailer towing ................................. 196
Winter ............................................ 186
DSR (Downhill Speed Regulation) ....113
Display message ............................ 223
On-board computer .......................109 Index
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Oil level
Checking (dipstick) ........................177
Checking (on-board computer) ......176
On-board computer .............................97
Additional functions menu .............109
Audio menu ................................... 100
Convenience submenu ..................108
Display messages ..........................211
DVD menu ..................................... 102
Factory settings ............................. 103
Heating submenu ........................... 107
Instrument cluster submenu ..........103
Lighting submenu .......................... 105
Navi menu ..................................... 102
Off-road menu ............................... 102
Overview .......................................... 99
Settings menu ............................... 103
Standard display menu ....................99
Telephone menu ............................ 111
Time/date submenu ......................104
Trip computer menu ......................110
TV menu ........................................ 101
Vehicle submenu ........................... 106
On-board computer language ..........104
Operating system see On-board computer ...................97
Outside temperature display ............97
On-board computer .......................100
Override feature
Rear side windows ...........................49 P
Paint code .......................................... 286
Paintwork Cleaning ......................................... 202
Panel
Removing (third row of seats) ..........68
Parking ................................................. 90
Parking aid Exterior mirror on the front-
passenger side ................................. 74
PARKTRONIC ................................. 133
Reversing camera ..........................135
Parking brake ...................................... 91
Display message ............................ 221
Parking lamps
Display message ............................ 227Parking position
Exterior mirror on the front-
passenger side ................................. 74
PARKTRONIC ...................................... 133
Activating/deactivating .................135
Malfunction ................................... .244
Range of the sensors .....................134
Trailer towing ................................. 135
Warning displa y............................. 134
PASSENGER AIRBAG OFF warning
lamp ............................................. 43, 234
Permanent four-wheel drive see 4MATIC ................................... 112
Permanent Speedtronic ....................128
Petrol Minimum grade ............................ .173
see Fuel
Plastic trim
Cleaning ......................................... 205
Power supply (trailer) .......................199
Power window switch see Side windows
Pre-emptive occupant safety system
see PRE-SAFE ®
PRE-SAFE ®
system .............................. 40
Display message ............................ 217
Program selector button
Automatic transmission ...................95
Pulling away ......................................... 89 R
Radio Changing a station (on-board
computer) ...................................... 100
see separate operating instructions
Radio-controlled equipment
Installation ..................................... 168
Rain closing feature
Sliding/tilting sunroof ...................151
Range (on-board computer) .............111
Rear bench seat Folding forward/back ....................155
Rear compartment
Activating/deactivating the air
conditioning ........................... 140, 141
Setting the air vents ......................144
Setting the temperature ................142 12
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Socket
................................................ 163
Cockpit .......................................... 163
Luggage compartment ...................164
Rear compartment .........................163
Spare wheel
Fitting ............................................ 268
Storage location ............................ 209
Technical data ............................... 297
Spare wheel bracket ...........................60
Emergency release ........................251
Speed limiter
Speedtronic ................................... 126
Speedometer
Additional speedometer (on-
board computer) ............................ 100
Segments ......................................... 97
Setting the unit (on-board com-
puter) ............................................. 103
Speedtronic ....................................... 126
Display message ............................ 218
Permanent ..................................... 128
Variabl e......................................... 126
SRS (Supplemental Restraint Sys-
tem) ...................................................... 35
Display message ............................ 221
Warning lamp ........................... 35, 236
Standard display (on-board com-
puter) .................................................... 99
Station see Radio ....................................... 100
Status line (on-board computer) ........98
Selecting the display ..................... .104
Steering
Display message ............................ 225
Steering wheel
Adjusting ................................... 70, 71
Buttons (on-board computer) ...........97
Storing settings ............................... 74
Steering wheel boss
Cleaning ......................................... 204
Steering wheel heating .......................71
Malfunction indicator lamp ............233
Stowage compartments ...................152
Armrest (under) ............................. 153
Centre console .............................. 152
Centre console (rear) .....................153Cup holder
..................................... 153
Glove compartment .......................152
Submenu (on-board computer)
Convenience .................................. 108
Heating .......................................... 107
Instrument cluster .........................103
Lighting .......................................... 105
Time/Date ..................................... 104
Vehicle .......................................... .106
Summer opening
see Convenience opening
Sun visor ............................................ 161
Supplemental Restraint System See SRS ........................................... 35
Surround lighting
Switching on/off (on-board com-
puter) ............................................. 105
Switching off the alarm
ATA .................................................. 54 T
Tailgate Display message ............................ 219
Limiting the opening angle ...............63
Tail lamps
Display message ............................ 228
Tail pipes
Cleaning ......................................... 203
Tank
see Fuel tank
Tank capacity .................................... 287
Technical data GL 350 BlueTEC ............................. 293
GL 350 CDI 4MATIC BlueEFFI-
CIENCY .......................................... 293
GL 450 4MATIC ............................. 292
GL 450 CDI 4MATIC ......................294
GL 500 4MATIC ............................. 292
Trailer loads ................................... 298
Tyres ...................................... 296, 297
Wheels ................................... 296, 297
Telescopic lever ................................ 193
Telescopic rod (Easy-Pack fix kit) ....160
Temperature Outside temperature ........................ 97
Thermatic
Malfunction indicator lamp ............234 14
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Thermotronic
Malfunction indicator lamp ............234
Third brake lamp
Display message ............................ 226
Tightening torque .............................. 271
Time Setting (on-board computer) .......... 104
Setting the time (on-board com-
puter) ............................................. 104
TIREFIT kit
Using ............................................. 263
TopTether ............................................. 48
Total distance recorder ....................100
Tow-away protection ..........................55
Switching on/off (on-board com-
puter) ............................................. 109
Towing ................................................ 279
Towing eye Fitting ............................................ 278
Removing ....................................... 279
Trailer
7-pin connector ............................. 199
Coupling up .................................. 195
Decoupling ..................................... 196
Display message .................... 225, 226
Power supply ................................. 199
Trailer coupling
see Trailer tow hitch
Trailer loads
Technical data ............................... 298
Trailer tow hitch ................................ 193
Cleaning ......................................... 203
Trailer towing
Driving tips .................................... 196
ESP ®
................................................ 51
Malfunction ................................... .248
Mounting dimensions ....................297
Parktroni c...................................... 135
Transmission
Display message ............................ 216
Transmission output (maximum)
Telephone/two-way radio ..............285
Transmission positions ....................... 93
Transport (vehicle) ............................279
Travelling uphill ................................. 190
Trim strips Cleaning ......................................... 205 Trip computer
Menu (on-board computer) ............110
Trip computer (on-board com-
puter) ................................................. .110
Trip meter ............................................ 99
Resetting (on-board computer) ......110
Turn signal lamps
Display message ............................ 226
TV
Operating (on-board computer) .....101
Two-way radio
Installation ..................................... 285
Type identification plate
see vehicle identification plate ......286
Tyre
Direction of rotatio n...................... 180
Tyre grip ............................................. 188
Tyre pressure ................................... .180
Calling up (on-board computer) ....183
Display message ...........217, 218, 229
Tyre pressure loss warning system
............................................................ 182
Tyre pressure monitor
Warning lamp ................................. 237
Tyres
General notes ................................ 179
Technical data ....................... 296, 297
Tyre tread .......................................... .180 U
Unlocking Emergency unlocking ..................... 250
From the inside (central unlocking
button) ............................................. 59 V
Vanity mirror Sun visor ........................................ 162
Variable Speedtronic ........................126
Vehicle Emergency unlocking ............250, 251
Individual settings (on-board com-
puter) ............................................. 103
Leaving parked up .........................249
Towing ........................................... 279
Transporting .................................. 279 Index
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Exterior view
Function Page
:
Luggage compartment 60
Vehicle tool kit 209
Exterior spare wheel
bracket*
60
;
Rear window heating 146
=
Lights 256
?
Fuel filler flap 172
A
Exterior mirrors 72
B
Roof carrier* 161
Sliding/tilting sunroof*
150 Function Page
C
Demisting the windscreen 145
Cleaning the windows 202
D
Windscreen wipers 84
E
Opening the bonnet 174
Engine oil 176
Coolant 177
F
Towing 277
G
Tyres and wheels 179
Flat tyre 26222
Exterior viewAt a glance
* optional
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Centre console
Function Page
:
Operates COMAND APS*
or the audio system
;
Hazard warning lamps 81
=
Selects the drive program 95
?
Adjusts the seat heating* 70
A
Seat ventilation* 69
B
Auxiliary heating* 147
C
42warning
lamp
2 43
D
Engages the differential
locks
116 Function Page
E
LOW RANGE off-road gear 114
F
DSR 113
G
Level control 129
H
ESP
® 52
I
Select ADS settings 129
J
PARKTRONIC* 133
K
Stowage compartment 152
L
Stowage compartment 153
M
Cup holder 153
2
The warning lamp also lights up briefly when you turn the key to position 2 in the ignition lock on vehicles
without automatic child seat recognition on the front-passenger seat*. It has no function, however, and does
not indicate that the front-passenger seat is equipped with automatic child seat recognition. Centre console
29At a glance
* optional
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Occupant safety
Notes on occupant safety
Seat belts, together with belt tensioners, belt
force limiters and airbags, are complemen-
tary, coordinated restraint systems. They
reduce the risk of injury in specific, pre-
defined types of accident situations and
thereby increase occupant safety. However,
seat belts and airbags generally do not pro-
tect against objects penetrating the vehicle
from the outside.
To ensure that the restraint systems can
deliver their full potential protection, make
sure that:
R the seat and head restraint are adjusted
properly (Y page 64).
R the seat belt has been fastened properly
(Y page 75).
R the airbags can inflate properly if they are
deployed (Y page 37).
R the steering wheel is adjusted properly
(Y page 70).
R the restraint systems have not been modi-
fied.
i An airbag increases the protection of
vehicle occupants wearing a seat belt.
However, airbags are only an additional
restraint system which complements, but
does not replace, the seat belt. All vehicle
occupants must wear their seat belt cor-
rectly at all times, even if the vehicle is
equipped with airbags. This is because – on
the one hand – airbags are not deployed in
all types of accident, as in some situations
airbag deployment would not increase the
protection afforded to vehicle occupants,
provided they are wearing their seat belt
correctly. On the other hand, airbag deploy-
ment only provides increased protection if
the seat belt is worn correctly because: R
the seat belt helps to keep the vehicle
occupant in the best position in relation
to the airbag.
R for example, in a head-on collision, the
seat belt can more adequately prevent
the occupant from being propelled
towards the point of the impact, and is
thus better suited to prevent injury.
Therefore, in accident situations where an
airbag is deployed, it only provides protec-
tion in addition to the seat belt if the seat
belt is being worn correctly. G
Risk of accident and injury
Always have maintenance work carried out at
a qualified specialist workshop which has the
necessary specialist knowledge and tools to
carry out the work required.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre for this pur-
pose.
In particular, work relevant to safety or on
safety-related systems must be carried out at
a qualified specialist workshop. If this work is
not carried out correctly, the operating safety
of your vehicle may be affected. There is a risk
of an accident and injury. G
Risk of injury
The restraint system may not work as inten-
ded if the following components have been
modified or work on these components has
not been performed correctly:
R restraint system, consisting of the seat
belts and anchorages, belt tensioners, belt
force limiters, airbags
R wiring
R networked electronic systems
Airbags or belt tensioners could then fail, e.g.
in the event of an accident in which the decel-
eration force would normally be high enough
to trigger the systems, or they could be trig-
gered unintentionally. Never carry out any
modifications on the restraint systems. 34
Occupant safetySafety
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calculated, additional protection for the
vehicle occupants. Not all airbags are
deployed in an accident.
The different airbag systems work inde-
pendently of each other. However, the
deployment of each individual system will
depend on the type of accident determined
by the control system in the first stages of
the collision (head-on collision, side impact
and overturn) and the extent of the acci-
dent (in particular, the vehicle's rate of
deceleration or acceleration).
The rate of vehicle deceleration or accelera-
tion and the direction of the force are essen-
tially determined by:
R the distribution of forces during the colli-
sion
R the collision angle
R the deformation characteristics of the vehi-
cle
R the characteristics of the object with which
the vehicle collides, e.g. the other vehicle
Factors which can only be seen and measured
after a collision has occurred do not play a
decisive role in the deployment of an airbag,
nor do they provide an indication of it.
The vehicle may be deformed significantly,
e. g. on the bonnet or the wing, without an
airbag being deployed. This is the case if only
parts which are relatively easily deformed are
affected and the necessary deceleration does
not occur. Conversely, airbags may be
deployed even though the vehicle suffers only
minor deformations. For example, this is the
case if very rigid vehicle parts such as longi-
tudinal body members are affected and suf-
ficient deceleration occurs as a result.
Belt tensioners, belt force limiters The front seat belts and the outer seat belts
in the second row are equipped with belt ten-
sioners. The front seat belts are also fitted
with belt buckle tensioners. !
Do not engage the seat belt tongue in the
buckle on the front-passenger seat if the
seat is not occupied. The belt tensioners
could otherwise be triggered in an acci-
dent.
If the seat belt is also equipped with a belt
force limiter, the force exerted by the seat
belt on the seat occupant is reduced.
Belt tensioners tighten the seat belts in an
accident, pulling them close against the body.
i Belt tensioners do not correct incorrect
seat positions or incorrectly fastened seat
belts.
Belt tensioners do not pull occupants back
towards the backrest.
The front belt force limiters are synchronised
with the front airbags, which distribute a pro-
portion of the deceleration forces exerted on
the occupant over a greater area.
When the ignition is switched on, the belt ten-
sioners/belt buckle tensioners cannot be
triggered unless:
R the restraint systems are operational; see
+ warning lamp.
R the belt tongue is engaged in the buckle on
each lap-shoulder belt in the front of the
vehicle.
Depending on the type and severity of an
accident, the belt tensioners/belt buckle ten-
sioners may be triggered:
R in the event of a head-on or rear-end colli-
sion if the vehicle decelerates or acceler-
ates rapidly in a longitudinal direction dur-
ing the initial stages of impact
R in the event of a side impact if the vehicle
is subjected to high lateral acceleration/
deceleration
R in certain situations if the vehicle over-
turns, and the system determines that it
can provide additional protection
If the airbags are deployed, you will hear a
bang and a small amount of powder may also
be released. Only in rare cases will the bang 36
Occupant safetySafety
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