
Notes on operating the vehicle ........ 25
Qualified specialist workshop .......... 26
Registering your vehicle ................... 27
Operating system
see On-board computer
Operator's Manual
General notes .................................. 22
Vehicle equipment ........................... 22
Outline lamp
Replacing bulbs ............................... 91
Outside temperature display ........... 162
Overhead control panel ...................... 36
Overrevving range .............................1 62
Overrun cutoff ................................... 133
P
Paintwork (cleaning instructions) ... 235
Paper holder ...................................... 207
Parking ............................................... 130
Important safety notes .................. 130
Parking brake ................................ 131
Wheel chock .................................. 132
see PARKTRONIC
Parking aid
see PARKTRONIC
Parking assistance
see PARKTRONIC
Parking brake
Display message ............................ 184
Notes/function .............................. 131
Parking lamps
Replacing bulbs ............................... 87
PARKTRONIC
Deactivating/activating ................. 153
Driving system ............................... 151
Function/notes .............................1 51
Important safety notes .................. 151
Problem (malfunction) ................... 154
Range of the sensors ..................... 151
Roll-back warning .......................... 153
Trailer towing ................................. 153
Warning display ............................. 152
Partition sliding door
Important safety notes .................... 70
Opening/closing .............................. 70 Passenger compartment air-condi-
tioning system
see Climate control
Passenger compartment heating
see Climate control
Perimeter lamp
Replacing bulbs ............................... 90
Pets in the vehicle ............................... 52
Plastic trim (cleaning instruc-
tions) .................................................. 238
Power assistance for the steering
Display message ............................ 192
Warning lamp ................................. 203
Power supply
Battery isolating switch ................. 118
Switching off .................................. 119
Switching on .................................. 119
Power take-off
Engine speed setting ..................... 154
Power washers .................................. 234
Power windows
see Side windows
Preparing for a journey
Checks in the vehicle ..................... 120
Visual check of the vehicle exte-
rior ................................................. 120
Protection of the envi
ronment
General notes .................................. 24
Pulling away ...................................... 121
Q
QR code
Rescue card ..................................... 29
Qualified specialist workshop ........... 26
R
Radiator cover..................................... 28
Radio
Changing stations (vehicles with
steering wheel buttons) ................. 167
see separate operating instructions
Radio-wave reception/transmis-
sion in the vehicle
Declaration of conformity ................ 26
14Index

Rain and light sensorSetting the sensitivity (vehicles
with steering wheel buttons) ......... 173
Windshield wiper .............................. 93
Range (vehicles with steering
wheel buttons) .................................. 174
Rear bench seat
Installing/removing (Passenger
Van) ................................................. 75
Stowage compartment (crewcab) .. 207
Rear compartment
Activating/deactivating climate
control ........................................... 101
Setting the air vents ...................... 106
Rear door
Child-proof locks .............................. 52
Important safety notes .................... 68
Opening/closing .............................. 68
Opening/closing from inside ........... 69
Rear fog lamp
Replacing bulbs ............................... 89
Switching on/off .............................. 80
Rear fog lamp (Chassis Cab)
Replacing bulbs ............................... 90
Rear interior light
Replacing bulbs ............................... 92
Rear lamps
see Lights
Rear rack
Notes ............................................. 216
Rear view camera
Cleaning instructions ..................... 236
Important safety notes .................. 154
Switching on .................................. 154
Rear window defroster
Problem (malfunction) ................... 104
Switching on/off ........................... 104
Rear window wiper ............................. 94
Switching on/off .............................. 94
Rear-compartment air-condition-
ing system
see Climate control
Rear-compartment heating
see Climate control
Rear-view mirror
Anti-glare mode ............................... 78
Refilling
DEF filler neck ............................... 129 Important safety notes (Diesel
Exhaust Fluid – DEF) ...................... 129
Refilling procedure (Diesel
Exhaust Fluid – DEF) ...................... 129
Refrigerant ......................................... 284
Refueling
Fuel filler flap ................................. 128
Fuel gauge ..................................... 162
Important safety notes (fuel) ......... 127
Refueling procedure (fuel) ............. 128
see Fuel
Releasing the parki
ng lock man-
ually (automatic transmission) ........ 127
Remote control
Changing the operating duration
(auxiliary heating) .......................... 110
Replacing the battery (auxiliary
heating ) ........................................ 111
Switching on/off (auxiliary heat-
ing) ................................................ 110
Synchronizing (auxiliary heating) ... 110
Replacing bulbs
Important safety notes .................... 86
Replacing the battery (auxiliary
heating remote control) .................... 111
Replacing the fuel filter .................... 202
Reporting safety defects .................... 27
Rescue card ......................................... 29
Restraint system
Introduction ..................................... 39
Warning lamp (function) .......... 39, 198
Reverse warning feature .................. 122
Roadside Assistance (breakdown) .... 23
Roof carrier
Maximum payload .......................... 286
Notes ............................................. 216
Roof load (roof carrier) ..................... 286
S
Safety
Children in the vehicle ..................... 47
Operating safety .............................. 25
Safety system
see Driving safety systems
Seat belts
Adjusting the height ......................... 42
Cleaning ......................................... 238
Index15

Removing/mounting ...................... 273
Specia lsea tbelt retractor .................. 48
Specialist worksho p............................ 26
Speed ,controlling
see Cruis econtrol
Speedomete r
Digital (vehicles wit hsteerin g
whee lbuttons ).............................. .170
Digital (vehicles without steering
wheel buttons) ............................... 163
Selecting display unit (vehicles
with steering- wheel buttons) ........1 70
see Instrument cluster
Standing lamps
Replacing bulbs ............................... 87
Replacing bulbs (rear) ......................8 9
Standing lamps (Chassis Cab)
Replacing bulbs (rear) ......................9 0
Start-off assist
Display message ............................1 82
Starting (engine) ................................ 120
Station
see Radio
Steering wheel
Adjusting ......................................... 77
Button overview ............................... 35
Cleaning ......................................... 238
Step
see Electrical step
Stickers
General safety notes ........................ 24
Stowage spaces
see Stowage spaces and stowage
compartments
Stowage spaces and stowage com-
partments
Eyeglasses compartment ...............2 05
Glove box ....................................... 204
Important safety notes .................. 204
Paper holder .................................. 207
Stowage compartment above the
windshield ..................................... 206
Stowage compartment in the cen-
ter console ..................................... 206
Stowage compartment in the
dashboard ...................................... 205
Stowage space above the head-
liner ............................................... 206 Stowage space u
nder the rear
bench seat ..................................... 207
Stowage space under the twin co-
driver's seat ................................... 206
Summer tires ..................................... 249
Switch unit
see Control panel
Switching off the alarm (ATA) ............ 56
Switching the heater booster func-
tion on/off ......................................... 111
Switching the surround lighting
on/off (on-board computer) ............. 172
Swivel seat ........................................... 73
T
Tachometer ........................................ 162
Tail lamps
Changing ......................................... 90
Replacing bulbs ............................... 89
see Lights
Tail lamps (Chassis Cab)
Replacing bulbs ............................... 90
Tank content
Fuel gauge ..................................... 162
Range (vehicles with steering
wheel buttons) ............................... 174
Reserve fuel warning lamp ............. 200
Technical data
Capacities ...................................... 277
Cargo tie-down points .................... 285
Cargo tie-down rings ...................... 285
Loading rails .................................. 285
Roof carrier .................................... 286
Tires/wheels ......................... 257, 272
Trailer tow hitch ............................. 286
Vehicle data ................................... 285
Telephone .................................. 210, 211
Telephone (on-board computer)
Accepting an incoming call ............ 175
Display messages .......................... 193
Numbers from the phone book ...... 175
Operating ....................................... 175
Redialing ........................................ 176
Rejecting or ending a call .............. 175
Temperature
Outside temperature ...................... 162
Setting (climate control) ................ 102
Index17

Sidewall (definition) ....................... 265
Snow chains .................................. 249
Speed rating (definition) ................ 264
Storing ........................................... 267
Structure and characteristics
(definition) ..................................... 264
Summer tires ................................. 249
TIN (Tire Identification Number)
(definition) ..................................... 265
Tire bead (definition) ...................... 265
Tire pressure (definition) ................ 265
Tire pressures (recommended) ...... 264
Tire size (data) ....................... 257, 272
Tire size designation, load-bearing
capacity, speed rating .................... 261
Tire tread ....................................... 248
Tire tread (definition) ..................... 265
Total load limit (definition) ............. 266
Traction (definition) ....................... 266
TWR (permissible trailer drawbar
noseweight) (definition) ................. 266
Uniform Tire Quality Grading
Standards (definition) .................... 264
Wear indicator (definition) ............. 266
Wheel rim (definition) .................... 264
Top Tether ............................................ 50
Touchshift (automatic transmis-
sion) .................................................... 125
Tow-away alarm
Arming/deactivating ........................ 57
Deactivating ..................................... 57
Operation ......................................... 57
Tow-starting
Emergency engine starting ............ 246
Important safety notes .................. 243
Towing
If the vehicle is stuck ..................... 245
Installing/removing the towing
eye ................................................. 244
With a raised front or rear axle ...... 245
Towing a trailer
Axle load, permissible .................... 287
Cleaning the trailer tow hitch ......... 237
Coupling up a trailer ...................... 157
Decoupling a trailer ....................... 159
Driving tips .................................... 155
Important safety notes .................. 155
Notes on retrofitting ...................... 286 Trailer loads ................................... 287
Tow ing aw
ay
Important safety guidelines ........... 243
In the event of malfunctions .......... 244
With both axles on the ground ....... 245
Trailer
Brake force booster malfunction ... 195
Trailer coupling
see Towing a trailer
Trailer loads and drawbar nose-
weights ............................................... 159
Trailer towing
Blind Spot Assist ............................ 146
PARKTRONIC ................................. 153
Permissible trailer loads and
drawbar noseweights ..................... 159
Transmission
see Automatic transmission
Transmission oil ................................ 282
Transport
Loading guidelines ......................... 212
Vehicle ........................................... 246
Transport by rail ................................ 135
Transportation
Rail ................................................ 135
Transporting
Load distribution ............................ 214
Securing a load .............................. 214
Trim pieces (cleaning instruc-
tions) .................................................. 238
Trip computer (on-board com-
puter) .................................................. 174
Trip meter
see Trip odometer
Trip odometer
Display (vehicles with steering
wheel buttons) ............................... 167
Display (vehicles without steering
wheel buttons) ............................... 163
Resetting ....................................... 162
see Trip computer (on-board computer)
Turn signals
Replacing bulbs (front) ..................... 88
Replacing bulbs (rear) ...................... 89
Switching on/off .............................. 81
Turn signals (Chassis Cab)
Replacing bulbs (rear) ...................... 90
Index19

Twin front-passenger seatStowage compartment .................. 206
Two-way radios
Type approval/frequency .............. 275
TWR (Tongue Weight Rating) (defi-
nition) ................................................. 266
U
Unlocking
From inside the vehicle (central
unlocking button) ............................. 64
USB port ............................................. 211
V
Vehicle
Data acquisition ............................... 29
Display message ............................ 192
Electronics ..................................... 275
Equipment ....................................... 22
Individual settings (vehicles with
steering wheel buttons) ................. 168
Limited Warranty ............................. 22
Loading .......................................... 258
Locking (SmartKey) .......................... 59
Lowering ........................................ 271
Maintenance .................................... 23
Operating safety .............................. 25
Parking for a long period ................ 132
Pulling away ................................... 121
Raising ........................................... 268
Registration ..................................... 27
Reporting problems ......................... 27
Securing from rolling away ............ 130
Towing away .................................. 243
Transporting .................................. 246
Unlocking (SmartKey) ...................... 59
Vehicle battery
see Battery (vehicle)
Vehicle bodies ..................................... 27
Body/equipment mounting direc-
tives for trucks ................................. 27
Vehicle data ....................................... 285
Vehicle identification number .......... 276
Vehicle identification plate .............. 276
Vehicle tool kit .................................. 240 Vents
see Air vents
Voltage supply
Fuses ............................................. 246
W
Warning Stickers ........................................... 24
Warning and indicator lamp
Diesel particle filter ....................... 201
Power assistance for the steering .. 203
Warning and indicator lamps
Brakes ........................................... 195
Check Engine ................................. 200
Coolant .......................................... 199
Diesel Exhaust Fluid (DEF) ............. 197
Electrical step ................................ 203
ESP
®.............................................. 194
ESP®function ................................ 197
Overview .......................................... 33
Seat belt ........................................ 203
Warning lamp .................................... 241
Warning triangle ................................ 241
Warning- and indicator lamps
ABS ................................................ 195
Air filter .......................................... 201
ASR ................................................ 194
BAS ................................................ 195
Battery charge ............................... 198
Brake wear .................................... 198
Bulbs .............................................. 203
Doors ............................................. 203
Engine oil level ............................... 198
Preglow .......................................... 201
Reserve fuel ................................... 200
Tire pressure monitor .................... 202
Water separator ............................. 202
Windshield washer fluid ................. 202
Warranty .............................................. 22
Washer fluid
Adding ........................................... 224
Capacities ...................................... 285
Display message ............................ 193
Indicator lamp ................................ 202
Notes ............................................. 284
Wiping with ...................................... 93
20Index

FunctionPage
¦Fluid level too low in wind-
shield washer/headlamp
cleaning system
202
åDEF supply low or contami-
nated/diluted162
Exhaust gas aftertreatment
malfunction197
ÄIndicator lamp, distance
warning143
·Warning lamp, distance
warning143
ÃWarning and indicator lamps,
Lane Keeping Assist147
1Door or hood open203
Electrically operated step
malfunction203
#Brake pads/linings worn198
+LOW RANGE active148
KHigh-beam headlamps on
(vehicle with steering wheel
buttons)
81
JRight-hand turn signal81
:ASR malfunction53
BAS malfunction195
hESP®malfunction194
ÈDirt accumulation in air filter201
6Reserve fuel162
Fuel filler cap open200
FunctionPage
:Water in the fuel202
mFuel filter dirty202
#Battery charging malfunction198
bBulb defective203
=Tachometer with warning
and indicator lamps
cParking brake applied136
LLow-beam headlamps on79
KWorking speed governor
(ADR) on154
ÐPower steering assistance
malfunction203
KHigh-beam headlamps on
(vehicle without steering
wheel buttons)
81
åDEF supply low or contami-
nated/diluted162
Exhaust gas aftertreatment
malfunction197
|Reserve fuel200
Fuel filler cap open200
\Diesel particle filter malfunc-
tion201
hESP®malfunction194
7Fasten seat belts203
iCorresponding messages may also be
shown in the display (Ypage 176).
34Instrument cluster
At 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 possi-
ble. 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 (
Ypage 26).
Exterior lighting
Important safety notes
For reasons of safety, we recommend that you
drive with the lights switched on even during the
daytime. There may be differences in operation
due to legal requirements and voluntary recom-
mendations in some countries.
Bulb failure indicator
The bulb failure indicator is only an aid. You are
responsible for the proper functioning of the
vehicle lighting. Insufficient or non-functioning
vehicle lighting puts the operating safety of the
vehicle at risk.
For this reason, check the condition and func-
tion of your vehicle's lighting system and, if nec-
essary, that of the trailer before each journey.
The bulb failure indicator monitors all of the
exterior lighting lamps, except the perimeter
lamp and the trailer lighting. If a bulb fails, either
the b(
Ypage 33) indicator lamp lights up, or
you will see a corresponding message in the
display (
Ypage 185).
iDepending on the equipment, the bulb fail-
ure indicator can fail for all lamps with the
exception of the turn signal lamps.
Light switch
Operation
1 ÃAutomatic headlamp mode/daytime
running lamps
2$Lights off
3TParking lamps, license plate and
instrument lighting
4LLow-beam/high-beam headlamps
5NFog lamps
6RRear fog lamp
If you hear a warning tone when you leave the
vehicle, the lights may still be switched on.
XTurn the light switch to $orÃ.
or
XIf the rear fog lamp is switched on: press the
light switch in to the stop.
The turn signals, high-beam headlamps and the
high-beam flasher are operated using the com-
bination switch (
Ypage 81).
Low-beam headlamps
XTo switch on: turn the key to position 2in the
ignition lock or start the engine.
XTurn the light switch to position L.
The L indicator lamp in the instrument
cluster lights up.
Daytime running lamps
You can activate/deactivate the daytime run-
ning lamps function using the on-board com-
puter.
This is not possible in countries where daytime
running lamps are a legal requirement.
Exterior lighting79
Lights and windshield wipers

Changing bulbs
Important safety notes
GDANGER
Xenon bulbs carry a high voltage. You can get an electric shock if you remove the cover of
the Xenon bulb and touch the electrical con-
tacts. There is a risk of fatal injury.
Never touch the parts or the electrical con-
tacts of the Xenon bulb. Always have work on
the Xenon bulbs carried out at a qualified spe-
cialist workshop.
GWARNING
Bulbs, lamps and connectors can get very hot
when operating. If you change a bulb, you
could burn yourself on these components.
There is a risk of injury.
Allow these components to cool down before
changing a bulb.
!Make sure the bulbs are always securely
installed.
If your vehicle is equipped with Bi-Xenon bulbs,
you can recognize this by the following: the cone
of light from the Xenon bulbs moves from the
top to the bottom and back again when you start
the engine. For this to be observed, the low-
beam headlamps must be switched on before
starting the engine.
The bulbs and lamps are an essential compo-
nent of vehicle safety. You must therefore make
sure that these function correctly at all times.
Have the headlamp setting checked regularly.
RAlways switch off the vehicle's lighting sys-
tem before changing a bulb.
This will prevent a short circuit.
RDo not touch the glass tube of new bulbs with your bare hands. Always use a clean, lint-free
cloth or only touch the base of the bulb when
installing.
Even minor contamination can burn into the
glass surface and reduce the service life of the
bulbs.
RDo not use a bulb that has been dropped or
that has scratches on its glass tube.
The bulb could explode.
ROnly use bulbs in closed lamps which have
been designed for this purpose.
ROnly use spare bulbs of the same type and
with the prescribed voltage
RProtect the bulbs from moisture when in use.
If the new bulb still does not light up, consult a
qualified specialist workshop.
RHave the LEDs and bulbs of the following
lamps changed at a qualified specialist work-
shop:
-the additional turn signals in the exterior
mirrors
-the high-mounted brake lamp
-LED daytime running lamps (Bi-Xenon
headlamps)
-Bi-Xenon lamps (Bi-Xenon headlamps)
-front fog lamps
If you require assistance changing bulbs, con-
sult a qualified specialist workshop.
Front bulbs
Overview of bulb replacement – bulb
types
The following bulbs can be replaced. Bulb types can be found in the legend.
Vehicle swit hhalogen headlamps
:
Turn signal: PY21W
;Daytime running lamps: W21W
=Low-beam headlamps: H7 55W
?High-beam headlamps: H7 55W
AParking lamps/standing lamps: W5W
86Changing bulbs
Lights and windshield wipers