
Releasing the parking lock man-
ually (automatic transmission)
........ 145
Remote control
Changing the operating duration
(auxiliary heating) .......................... 126
Replacing the battery (auxiliary
heating ) ........................................ 130
Switching on/off (auxiliary heat-
ing) ................................................ 126
Synchronizing (auxiliary heating) ... 126
Replacing bulbs
Important safety notes .................... 99
Replacing the battery (auxiliary
heating remote control) .................... 130
Restraint system
Introduction ..................................... 42
Warning lamp (function) .......... 42, 222
Reverse warning feature .................. 140
Roof carrier
Maximum payloa d.......................... 328
Notes ............................................. 245
Roof load (roof carrier) ..................... 328S
Safety Child restraint systems .................... 52
Children in the vehicle ..................... 51
Safety system
see Driving safety systems
Seat belts
Adjusting the height ......................... 45
Cleaning ......................................... 271
Correct usage .................................. 45
Display message ............................ 207
Fastening ......................................... 45
Important safety guidelines ............. 44
Introduction ..................................... 43
Releasing ......................................... 46
Warning lamp ................................. 227
Warning lamp (function) ................... 46
Seat heating ......................................... 87
Seats
Adjusting lumbar support ................ 83
Adjusting the co-driver's sea t.......... 83
Adjusting the head restraint ............ 86
Armrest ............................................ 87
Cleaning the cover ......................... 271 Correct driver's seat position ........... 82
Folding seat ..................................... 85
Important safety notes .................... 82
Rear bench seat ............................... 85
Seat heating .................................... 87
Setting the driver's seat ................... 83
Swivel seat ....................................... 84
Twin co-driver's seat ........................ 85
Securing loads
Important safety notes .................. 242
Selector lever
Cleaning ......................................... 270
Sensors (cleaning instructions) ....... 268
Service center
see Qualified specialist workshop
Service interval display
Calling up the service due date ...... 258
Exceeding a service due date ........ 258
Notes ............................................. 257
Service due date (automatic dis-
play) ............................................... 257
Service products
Brake fluid ..................................... 324
Coolant (engine) ............................ 325
Diesel ............................................ 318
Diesel Exhaust Fluid (DEF) ............. 320
Engine oil ....................................... 322
Fuel ................................................ 318
Important safety notes .................. 318
Power steering fluid ....................... 324
Refrigerant ..................................... 326
Transmission oil ............................. 324
Washer fluid ................................... 326
Setting the air distribution ............... 117
Setting the airflow ............................ 118
Setting the clock
Vehicles with steering wheel but-
tons ............................................... 191
Vehicles without steering wheel
buttons .......................................... 183
Settings
Resetting all (vehicles with steer-
ing wheel buttons) ......................... 188
Resetting submenus (vehicles
with steering wheel buttons) ......... 189
Short journeys (diesel particle fil-
ter) ...................................................... 153 16
Index

Trailer
Brake force booster malfunction ... 219
Trailer coupling
see Towing a trailer
Trailer loads and drawbar nose-
weights .............................................. .177
Trailer towing
Blind Spot Assist ............................ 165
PARKTRONIC ................................. 170
Permissible trailer loads and
drawbar noseweights ..................... 177
Transmission
see Automatic transmission
Transmission oil ................................ 324
Transport
Loading guidelines ......................... 240
Vehicle .......................................... .280
Transport by rail ................................ 154
Transportation
Rail ................................................ 154
Transporting
Load distribution ............................ 242
Securing a load .............................. 242
Trim pieces (cleaning instruc-
tions) ................................................. .270
Trip computer (on-board com-
puter) ................................................. .195
Trip meter
see Trip odometer
Trip odometer
Display (vehicles with steering
wheel buttons) ............................... 187
Display (vehicles without steeringwheel buttons) ............................... 182
Resetting ....................................... 181
see Trip computer (on-board computer)
Turn signals
Replacing bulbs (front) ................... 102
Replacing bulbs (rear) .................... 103
Switching on/off .............................. 94
Turn signals (Chassis Cab)
Replacing bulbs (rear) .................... 104
Twin co-driver's seat
Folding table .................................. 234
Stowage compartment .................. 232
Two-way radios
Type approval/frequency .............. 316 TWR (Tongue Weight Rating) (defi-
nition)
................................................. 305 U
Unlocking From inside the vehicle (central
unlocking button) ............................ .71
USB port .............................................2 38 V
Vehicle Data acquisition ............................... 29
Display message ............................ 216
Electronics ..................................... 316
Equipment ....................................... 22
Individual settings (vehicles with
steering wheel buttons) ................. 188
Limited Warranty ............................ .22
Loading .......................................... 295
Locking (SmartKey) .......................... 66
Lowering ........................................ 310
Maintenance .................................... 28
Parking for a long period ................ 151
Pulling away ................................... 140
Raising ........................................... 307
Registration ............................... 25, 28
Reporting problems ......................... 28
Securing from rolling away ............ 149
Towing away .................................. 277
Transporting .................................. 280
Unlocking (SmartKey )...................... 66
Vehicle battery
see Battery (vehicle)
Vehicle bodies
Body/equipment mounting direc-
tives for trucks ................................. 26
Vehicle data ....................................... 327
Vehicle identification number .......... 316
Vehicle identification plate .............. 316
Vehicle tool kit .................................. 274
Vents
see Air vents
Voltage supply
Fuses ............................................. 280 20
Index

Instrument cluster
Displays and controls
Instrument cluster on vehicles without steering wheel buttons
Instrument cluster in vehicles with steering-wheel buttons
Function Page
0043
Speedometer 181
0044
Tachometer 181
0087
0074,
0075Brightens/dims the
instrument cluster lighting 181
0085
Fuel gage with fuel filler flap
location indicator 181
0083
Display
Vehicles without steering
wheel buttons
182
Vehicles with steering
wheel buttons 184 Function Page
0084
Reset button
0045 34
006B
Menu button
0079 • changes standard display 182
• selects menus 183
006C
Service button
0098 Checks the engine oil level 25034
Instrument clusterAt a glance

Useful information
This Operator's Manual describes all models
as well as standard and optional equipment of your vehicle that were available at the time of going to print. Country-specific variations are
possible. Note that your vehicle may not be
equipped with all of the described functions.
This also applies to systems and functions
relevant to safety.
Read the information on qualified specialist
workshops (Y page 25). Important safety notes
G
WARNING
If you are driving and reach through the steer- ing wheel to operate the adjustment knob,
you could lose control of the vehicle. There is
a risk of an accident and injury.
Only operate the adjustment knobs when the vehicle is stationary. Do not reach through the
steering wheel when driving. G
WARNING
If you operate information systems and com-
munication equipment integrated in the vehi- cle while driving, you will be distracted from
traffic conditions. You could also lose control of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary. G
WARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems relevant to safety. The operating safety of your vehicle may be
impaired. There is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately. You must observe the legal requirements for
the country in which you are currently driving
when operating the on-board computer.
The on-board computer display only shows
messages and warnings from certain sys-
tems. You should therefore make sure your
vehicle is operating safely at all times. If the
operating safety of your vehicle is impaired,
stop the vehicle as soon as possible, paying
attention to road and traffic conditions. Then consult a qualified specialist workshop. Instrument cluster
Overview
0043
Instrument cluster on vehicles without
steering wheel buttons
0044 Instrument cluster in vehicles with steer-
ing-wheel buttons
0087 Adjustment buttons 0074/0075
0085 Reset button 0045
0083 Service button 0098(engine oil level check)
0084 Menu button 0079
You will find a full overview of the instrument cluster in the "At a glance" section
(Y page 34). 180
Instrument clusterOn-board computer and displays

Menus in the on-board computer
Overview If you wish to exit a menu and go to the stand-
ard display:
X Press the 0079menu button for longer than
1 second.
or
X Do not press any button for 10 seconds.
The display accepts the changed settings.
Using the 0074,0075,0079or0045 adjustment but-
tons, you can select the following functions:
R Calling up the service due date
(Y page 258)
R Checking the oil level (Y page 250)
R Checking the DEF supply (Y page 182)
R Preselecting/setting the auxiliary heating
switch-on time (Y page 124)
R Tire pressure monitor (Y page 291)
R Setting the time (Y page 183)
R Activating/deactivating Highbeam Assist
(Y page 192)
R Setting the daytime running lamps
(Y page 92)
Setting the time X
Turn the key to position 2in the ignition
lock.
X Press the 0079menu button repeatedly until
the hours figure flashes.
X Press the 0074or0075 button to set the hour.
X Press the 0045reset button.
The minute display flashes.
X Press the 0074or0075 button to set the minute.
i If you keep the
0074or0075 button pressed,
the value will change continuously. Activating/deactivating Highbeam
Assist X
Turn the key to position 2in the ignition
lock.
X Press the 0079menu button repeatedly until
the 00CE indicator lamp flashes and the on on
or OFF
OFF message appears in the display.
X Use the 0074or0075 button to switch High-
beam Assist on/off.
Switching the daytime running lamps
on/off If you switch the daytime running lamps
on on,
the daytime running lamps will automatically
light up when the engine is running.
For safety reasons, it is only possible to
change this setting when the vehicle is sta-
tionary. The factory setting is on onin countries
in which daytime running lamp mode or day-
time running lamps are mandatory.
X Turn the key to position 2in the ignition
lock.
X Press the 0079menu button repeatedly until
the 0058 indicator lamp flashes and the on on
or OFF
OFF message appears in the display.
X Press the 0074or0075 button to activate or
deactivate the daytime running lamps.
i USA only:
If you turn the light switch to 0060or0058,
the corresponding light switches on. If you
turn the light switch to 0058, the daytime
running lamps remain switched on.
Canada only:
If you turn the light switch to 0058, the low-
beam headlamps switch on. If you turn the light switch to 0060or0058, the daytime
running lamps remain switched on. On-board computer (vehicles without steering wheel buttons)
183On-board computer and displays Z