354 Practical hints
Battery
Have the battery removed at a
Mercedes-Benz Light Truck Center.
If you charge the battery yourself, make
sure to comply with the operating instruc-
tions for your battery charger.Disconnecting the battery
Read and observe safety instructions
and precautions (
page 251) and
(
page 353).
Turn off all electrical consumers.
Disconnect the battery negative lead.
Remove the cover from the positive ter-
minal.
Disconnect the battery positive lead.
Remove the breather hose from the
battery.
!
Have the battery checked regularly by
an authorized Mercedes-Benz Light
Truck Center.
Refer to Maintenance Booklet for main-
tenance intervals or contact an autho-
rized Mercedes-Benz Light Truck
Center for further information.
!
Never loosen or detach battery termi-
nal clamps while the engine is running
or the SmartKey is in the starter switch.
Otherwise the alternator and other
electronic components could be se-
verely damaged.
Warning!G
With a disconnected battery
you will no longer be able to turn the
SmartKey in the starter switch
the gear selector lever will remain
locked in position
P
358 Practical hints
Towing the vehicle
Mercedes-Benz recommends that the vehi-
cle be transported with all wheels off the
ground using flatbed or appropriate wheel
lift/dolly equipment. This method is pref-
erable to other types of towing.
When circumstances do not permit the
recommended towing methods, the vehi-
cle may be towed with all wheels on the ground only so far as necessary to have the
vehicle moved to a safe location where the
recommended towing methods can be em-
ployed.
!
Use flatbed or wheel lift/dolly equip-
ment, with SmartKey in starter switch
turned to position0.
Do not tow with sling-type equipment.
Towing with sling-type equipment over
bumpy roads will damage radiator and
supports.
To prevent damage during transport,
do not tie down vehicle by its chassis or
suspension parts. Use the towing eyes.
Switch off the ESP (
page 86),
tow-away alarm (
page 89) and the
automatic central locking
(
page 142).
!
When towing the vehicle with all wheels
on the ground, the gear selector lever
must be in position N and the
SmartKey must be in starter switch
position2.
When towing the vehicle with all wheels
on the ground, the vehicle may be
towed only for distances up to 30 miles
(50 km) and at a speed not to exceed
30 mph (50 km/h).
If the vehicle is towed with one axle
raised (observe instructions regarding
flexible drive shaft and propeller
shafts), the engine must be shut off
(SmartKey in starter switch position1).
Otherwise, the 4-ETS may become en-
gaged which may cause loss of towing
control.
!
Do not tow-start the vehicle.
Warning!G
Prior to towing the vehicle with all wheels on
the ground, make sure the SmartKey is in
starter switch position2.
If the SmartKey is left in the starter switch
position0 for an extended period of time, it
can no longer be turned in the switch. In this
case, the steering is locked. To unlock, re-
move SmartKey from starter switch and re-
insert.
Always tow with a tow bar if:
the engine will not run
there is a malfunction in the power sup-
ply or in the vehicle’s electrical system
as that will be necessary to adequately con-
trol the towed vehicle.
359 Practical hints
Towing the vehicle
Warning!G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle. Adapt your driving accordingly.
i
The gear selector lever will remain
locked in positionP and the SmartKey
will not turn in the starter switch if the
battery is disconnected or discharged.
For more information, see “Battery”
(
page 353) and “Jump starting”
(
page 356).
For information on manually unlocking
transmission gear selector lever, see
(
page 329).
i
To signal turns while being towed with
hazard warning flasher in use, turn
SmartKey in starter switch to
position2 and activate combination
switch for left or right turn signal in
usual manner – only the selected turn
signal will operate.
Upon canceling the turn signal, the
hazard warning flasher will operate
again.
!
When towing the vehicle with all wheels
on the ground, note the following:
With the automatic central locking acti-
vated and the SmartKey in starter
switch position2, the vehicle doors
lock if the wheels are turning at vehicle
speeds of approx. 9 mph (15 km/h) or
more.
To prevent the vehicle doors from lock-
ing, deactivate the automatic central
locking (
page 142).
Towing of the vehicle should only be
done using the towing eye. Never at-
tach tow cable, tow rope or tow rod to
vehicle chassis, frame or suspension
parts.
386 Technical terms
Memory function*
Used to store three individual seat,
steering wheel and mirror positions for
each SmartKey.
MON
(M
otor Octane Number)
The Motor Octane Number for gasoline
as determined by a standardized meth-
od. It is an indication of a gasoline’s
ability to resist undesired detonation
(knocking). The average of both the
MON (Motor Octane Number) and
->RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Multifunction display
A display field in the instrument cluster
used to present information provided
by the control system.
Normal occupant weight
(
page 274)Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this en-
gine speed range, as it may result in se-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing
Engine
Clutch/torque converter
Transmission
Transfer case
Drive shaft
Differential
Axle shafts/axlesProduction options weight
(
page 275)
PSI
(P
ounds per square inch)
(
page 275)
Recommended tire inflation pressure
(
page 275)
Rear Parking Assist*
System which uses visual and acoustic
signals to assist the driver during park-
ing maneuvers.
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.
Restraint system
Seat belts, belt tensioner, airbags and
child seat restraint systems. As inde-
pendent systems, their protective func-
tions complement one another.
387 Technical terms
Rim
(
page 275)
RON
(R
esearch Octane Number)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line’s ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Shift lock
When the vehicle is parked, this lock
prevents the transmission gear selec-
tor lever from being moved out of
positionP without key turned and
brake pedal depressed.
Sidewall
(
page 275)SRS
(S
upplemental Restraint System)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.
Tele Aid System
(T
elematic Alarm Identification on
D
emand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, roadside assistance
and information. Tele Aid is initially ac-
tivated by completing a subscriber
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.Telematics*
A combination of the terms “telecom-
munications” and “informatics”.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
TIN
(Tire Identification Number)
(
page 275)
Tire load rating
(
page 265)
Tire ply composition and material used
(
page 275)
Tire speed rating
(
page 275)
Traction
(
page 275)
390 Index
Alarm
Audible 79, 88
Canceling 89, 90
Visual 88
Alarm system
Anti-theft 88
Anticorrosion/antifreeze 381
Antilock brake system (ABS) 383
Anti-theft alarm system
Arming 88
Canceling alarm 89
Disarming 89
Anti-theft systems 88
Anti-theft alarm system 88
Tow-away alarm 89
Aquaplaning see Hydroplaning
Armrest
Storage compartment below 195
Storage compartment in front of 195
Ashtrays 198
Aspect ratio 273
At the gas station 239
ATF (automatic transmission fluid) 248AUDIO menu 128
Selecting radio station 129
Auto-dimming for rear view mirror 163
Automatic central locking
Activating/deactivating (control
system) 142
Automatic climate control
Deactivating 174
Automatic headlamp mode 111
Automatic locking when driving 98
Automatic transmission 149
Accelerator position 153
Emergency operation (Limp Home
Mode) 156
Fluid level 248
Gear ranges 154
Gear selector lever position 149, 151
Gear shifting malfunctions 156
Kickdown 153
Manual shifting 155
One-touch gearshifting 155
Transmission fluid 248B
BabySmartTM
Airbag deactivation system 74, 383
Compatible child seats 74, 383
Self-test 75
Backup lamps 336
Bulbs 336
Replacing bulbs 344
Bar 273
BAS 80, 82, 383
Messages in display 300
Batteries
SmartKey (replacing) 333
Batteries, SmartKey
Check lamp 95
Checking 95
Battery box
Fuse box in 362
Battery discharged
Jump starting 356
392 Index
Center console 28
AIRBAG OFF indicator lamp 297
Lower part 29
Upper part 28
Centigrade
Setting temperature units 136
Central locking
From inside 99
Switch 99
Switching on/off (control
system) 142
Unlocking from inside 99
Certification label 368
Changing
Key setting 143
Charging
Vehicle battery 353
Checking
Coolant level 241, 248
Oil level 241, 243
Checklist
Off-road driving 229Child safety 72
Infant and child restraint systems 62,
72
LATCH child seat anchors 77
Child safety switch see Blocking of rear
door window operation
Cigarette lighter 199
Cleaning
Cup holders 287
Gear selector lever 287
Hard plastic trim items 287
Headlamps 165
Headliner 287
Illuminated door sill panels 288
Instrument cluster 287
Leather upholstery 288
Light alloy wheels 287
MB Tex upholstery 288
Plastic and rubber parts 288
Rear Parking Assist sensors* 286
Seat belts 287
Steering wheel 287
Windows 286
Windshield 54
Wiper blades 286
Wood trims 288Cleaning tires 254
Climate control 168
Adjusting 171
Defogging windshield 171
Defrosting 172
Rear window defroster 166
Setting the temperature 170
Clock 25
Closing
Glove box 194
Hood 243
Side windows 175
Tailgate 98
Tilt/sliding sunroof 178, 330
Tilt/sliding sunroof with
SmartKey 179
Windows 175
Windows with SmartKey 176
Closing tilt/sliding sunroof
In an emergency 330
Cockpit 22, 383
Cockpit management and data system
(COMAND) 384
Cold tire inflation pressure 273
COMAND 384
393 Index
COMAND see separate operating instruc-
tions
Combination switch 23, 114
High beam flasher 52, 114
High beam headlamps 114
Turn signals 52
Windshield wipers 53
Control and operation of radio
transmitters 235
Control system 123, 384
AUDIO menu 128
Convenience submenu 143
Display digital speedometer 128
Functions 125, 127
Instrument cluster submenu 136
Lighting submenu 138
Menus 126, 127
Multifunction display 123
Multifunction steering wheel 124
NAVI menu 130
Satellite radio (USA only) 129
Selecting radio system 129Settings menu 132
Standard display menu 128
Submenus 125, 127
TEL menu 146
Trip computer menu 145
Vehicle status message memory
menu 131
Vehicle submenu 142
Convenience feature 177
Convenience submenu 143
Activating easy-entry/exit
feature 143
Setting key-dependency 144
Setting parking position for exterior
rear view mirror 144
Coolant 248, 380
Adding 249
Anticorrosion/antifreeze
quantity 380
Capacities 376
Checking level 248
Messages in display 307, 308, 309
Temperature 238
Temperature display 120
Warning lamp 307Coolant level
Checking 241, 248
Crossing obstacles 232
Cruise control 181, 384
Canceling 182
Driving downhill 182
Driving uphill 182
Fine adjustment 183
Messages in display 310
Setting current speed 182
Setting speed 183
Cruise control lever 181
Cup holder
In rear passenger footwell 197
Cup holders 196
Cleaning 287
In front passenger footwell 197
In glove box lid 196
Next to the armrest 196
Curb weight 273
Customer Assistance Center (CAC) 383