Trailer towing
................................. 146
Transmission oil change ................328
Automatic transmission emer-
gency mode ....................................... 147
Auxiliary heating Activating/deactivating heater
booster mode ................................ 130
Conditions for switching on ...........123
Heating time .................................. 123
Important safety notes ..................122
Operating with the button (control
panel) ............................................ 124
Operation with the remote
control ........................................... 125
Operation with the timer ................127
Problem (malfunction) ...................132
Selecting a switch-on time ............. 124
Setting the switch-on time .............125
see Auxiliary heating
AUX port ............................................ .240
Axle load, permissible (trailer tow-
ing) ...................................................... 333 B
Backup lamps Replacing bulbs ............................. 103
Backup lamps (Chassis Cab)
Replacing bulbs ............................. 104
BAS (Brake Assist System)
Display message ............................ 207
Function/notes ................................ 57
Indicator lamp ................................ 221
Basic settings
see Settings
Battery
Isolating switch .............................. 136
Replacing (SmartKey) ......................69
Battery (SmartKey)
Checking .......................................... 68
Important safety notes ....................68
Replacing ......................................... 69
Battery (vehicle)
Care ............................................... 266
Charge indicator lamp ...................225
Charging ........................................ 266
Disconnecting and connecting
(driver's footwell) ........................... 262Disconnecting and connecting
(engine compartment)
...................264
Disconnecting and reconnecting
(base of driver's seat) ....................265
Display message ............................ 219
Important safety notes ..................260
Installing/removing (base of driv-
er's seat) ........................................ 266
Installing/removing (driver's foot-
well) ............................................... 263
Installing/removing (engine com-
partment) ....................................... 265
Jump starting ................................. 278
Location ......................................... 261
Removing/installing the floor cov-
ering (driver's footwell) ..................261
Before driving off
Important safety notes ..................138
Belt
see Seat belts
Bleeding the fuel system ..................143
Blind Spot Assist Activating/deactivating .................166
Notes/function .............................. 164
Trailer towing ................................. 166
Bodies
Body/equipment mounting direc-
tives for trucks ................................. 28
Bottle holder ...................................... 237
see Cup holder
Brake Assist System
see BAS (Brake Assist System)
Brake fluid
Checking the level .........................256
Display message ............................ 208
Notes ............................................. 328
Warning lamp ................................. 222
Brake force distribution, elec-
tronic
see EBD (electronic brake force
distribution)
Brake lamps
Replacing bulbs ............................. 103
Brake lamps (Chassis Cab)
Replacing bulbs ............................. 104
Brake linings
Display message ............................ 207
Indicator lamp ................................ 225 Index
5
Brakes
ABS .................................................. 56
Adaptive Brake Assist ......................59
Applying the parking brake ............152
BAS .................................................. 57
Brake fluid (notes) .........................328
Checking brake fluid leve l.............. 256
Display messages ..........................207
EBD .................................................. 57
Important safety notes ..................156
Maintenance .................................. 221
Parking brake (notes) ..................... 157
Riding tips ...................................... 156
Brake system
Malfunction ................................... .207
Warning lamp ................................. 221
Breakdown
Fire extinguisher ............................ 278
First-aid kit .................................... 277
Jump-starting ................................. 278
Reflective safety jacket .................. 277
Vehicle tool kit ............................... 276
Warning lamp ................................. 277
Warning triangle ............................ 277
see Flat tire
see Towing away
see Tow-starting
Bulb
see Changing a bulb
Bulb failure indicator ..........................92C
Care Car wash ........................................ 267
Display ........................................... 272
Exterior lights ................................ 270
Notes ............................................. 267
Paint .............................................. 269
Plastic trim .................................... 272
Power washer ................................ 268
Rear view camera .......................... 271
Roof lining ...................................... 273
Seat belt ........................................ 273
Seat cover ..................................... 272
Selector lever ................................ 272
Sensors ......................................... 270
Sliding door ................................... 271Steering wheel
............................... 272
Step (electrical) ............................. 271
Trim pieces .................................... 272
Washing by hand ........................... 268
Washing the engine .......................269
Wheels ........................................... 269
Windows ........................................ 269
Wiper blades .................................. 270
Cargo compartment
Activating/deactivating ventila-
tion ................................................ 133
Cargo compartment floor ...................28
Cargo tie-down points and tie
downs
Important safety notes ..................244
Cargo tie-down rings
Installing ........................................ 246
Permissible tensile loa d................. 331
Car wash (care) ................................. 267
CD player/CD changer ......................190
Cell phone see Mobile phone
Center console overview ....................37
Central locking Automatic locking ............................ 71
Important safety notes ....................71
Locking/unlocking (buttons) ...........71
Locking/unlocking (SmartKey) ........66
Locking/unlocking manually ............ 71
Central locking system
see Central locking
Changing bulbs
Additional indicators (roof) ............105
Backup lamp (Chassis Cab) ...........104
Backup lamps ................................ 103
Bi-Xenon bulbs ............................... 100
Brake lamps ................................... 103
Brake lamps (Chassis Cab) ............104
Cornering lamps ............................ 102
Courtesy lights ............................... 105
Daytime running lamps (halogen
headlamps) .................................... 102
Display message ............................ 210
Front interior light ..........................106
High-beam headlamps ...................101
Interior light ................................... 106
Interior lighting .............................. 106
License plate lamp .........................1046
Index
Electrical fuses
see Fuses
Electrical step
Cleaning ........................................ .271
Display message ............................ 219
Emergency release ..........................74
Function .......................................... .74
Important safety notes ....................73
Indicator lamp ................................ 230
Manual retraction ............................ 74
Obstacle detection ........................... 74
Electrical system
Battery main switch .......................136
Electronic Stability Program
see ESP ®
(Electronic Stability Program)
Emergency exit .................................... 61
Emergency exit window .....................61
Emergency Tensioning Devices Function .......................................... .50
Safety guideline s............................. 43
Emissions control
Service and warranty information ....23
Engine
ADR (working speed governor) ......172
Changing the power output .............25
Check Engine warning lamp ........... 227
Cleaning instructions .....................269
ECO Start (Euro 6 engines) ............140
Engine number ............................... 320
Engine speed setting (working
mode) ............................................ 173
Irregular running ............................ 143
Jump-starting ................................. 278
Operating safety .............................. 25
Starting .......................................... 138
Starting problems ..........................143
Switching off .................................. 152
Tow-starting (vehicle) ..................... 282
Engine, jump-starting .......................278
Engine electronics Notes ............................................. 318
Problem (malfunction) ...................143
Engine oil
Adding ........................................... 254
Additives ........................................ 326
Checking the oil level (on-board
computer) ...................................... 252Checking the oil level using the
dipstick
.......................................... 253
Display message ............................ 216
Filling capacity ............................... 327
Information about oil consump-
tion ................................................ 327
Mixing ............................................ 327
Notes about oil grades ................... 326
Oil change ...................................... 327
Oil level (note) ............................... 252
Viscosity ........................................ 326
Warning lamp ................................. 225
Engine speed setting (working
mode) ................................................. 172
Equipment/conversions .....................27
ESP ®
(Electronic Stability Pro-
gram) Display message ............................ 209
Important safety information ...........57
Indicator lamp ................................ 224
Warning lamp ................................. 221
Exhaust check ................................... 154
Exhaust gas aftertreatment ...............27
DEF level indicator .........................184
DEF reducing agent .......................324
Diesel Exhaust Fluid (DEF) .............324
Display messages (vehicles with-
out steering wheel buttons) ...........202
Display messages (vehicles with
steering wheel buttons) .................213
Indicator lamp ....................... 224, 228
Malfunction ................................... .213
Refilling DEF .................................. 149
Exterior lighting .................................. .92
see Lights
Exterior mirrors
Adjusting ......................................... 89
Important safety notes ....................89
Eyeglasses compartment .................233 F
Fire extinguisher ............................... 278
First-aid kit ......................................... 277
Flat tire Changing a wheel/mounting the
spare wheel ................................... 308
General notes ................................ 30710
Index
Installing/removing the ball cou-
pling
.................................................... 175
Instrument cluster Fuel gage ....................................... 183
Important safety notes ..................182
Instrument cluster lighting .............183
Outside temperature displa y.......... 183
Overview .......................................... 34
Speedometer ................................. 183
Tachometer ................................... 183
Warning and indicator lamps ...........35
Instrument cluster lighting ..............183
Instrument lighting see Instrument cluster lighting
Interior lighting ................................... 98
Front ................................................ 98
Motion detectors ........................... 100
Notes on replacing bulbs ...............106
Replacing bulbs ............................. 106
Switching the rear compartment
lighting on centrally .........................99
Interior motion sensor
Arming ............................................. 63
Deactivating .................................... .64
Function ........................................... 63
Switching off .................................... 64J
Jack Jacking points ................................ 309
Preparation .................................... 309
Storage location ............................ 276
Using ............................................. 309
Jump-starting ..................................... 278K
Key Position in the ignition lock ............ 137
see SmartKey
Kickdown ........................................... 146 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating .................167
Function/notes ............................. 166
Language
Display (vehicles with steering
wheel buttons) ............................... 192
Lashing points and tie downs
Permissible tensile loa d................. 331
LATCH-type (ISOFIX) child seat
anchors ................................................ 52
License plate lamp Replacing bulbs ............................. 104
License plate lamp (Chassis Cab)
Replacing bulbs ............................. 104
Lighting
Light switch ..................................... 93
see Lights
Lights
Activating/deactivating daytime
running lamps (on-board com-
puter with steering wheel but-
tons) .............................................. 194
Activating/deactivating daytime
running lamps (vehicles with
steering wheel buttons) ...................93
Activating/deactivating surround
lighting (vehicles with steering
wheel buttons) ............................... 195
Active light function .........................97
Automatic headlamp mode ..............94
Bulb failure indicator ........................92
Cornering light function ...................96
Driving abroad ............................... 155
Fog lamps ........................................ 94
Hazard warning lamps .....................96
Headlamp range .............................. 95
Highbeam Assist .............................. 97
High beam flasher ............................ 95
High-beam headlamps .....................95
Low-beam headlamps ......................93
Parking lamps .................................. 93
Rear fog lamp .................................. 9412
Index
Problems with the key/remote control
Problem Possible causes/consequences and
0050
0050Solutions It is no longer possible
to lock the vehicle
using the remote
control.
The turn signals do not
flash when the vehicle
is locked. The doors are not closed properly.
X
Close the doors properly and lock the vehicle again. The central locking system has malfunctioned.
X
Lock the vehicle using the folding key (Y page 66).
X Have the central locking system checked as soon as possible
at a qualified specialist workshop. It is no longer possible
to lock or unlock the
vehicle using the
remote control. The key battery is weak or discharged.
X
Point the remote control at the driver's door handle from very
close range and press the 0036or0037 button.
If this does not work:
X Replace the key battery (Y page 69).
Or
X Lock the vehicle using the folding key (Y page 66). The remote control is faulty.
X
Lock the vehicle using the folding key (Y page 66).
X Have the key checked at a qualified specialist workshop. The key cannot be
turned in the ignition
lock. The steering lock has jammed mechanically.
X
Remove the key and insert it again into the ignition lock. Turn
the steering wheel from side to side while doing so. The engine cannot be
started using the key. The on-board voltage is too low.
X Switch off all non-essential consumers, such as interior lighting,
and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 266).
Or
X Jump-start the vehicle (Y page 278).
Or
X Consult a qualified specialist workshop. You have lost a key. X
Have the key deactivated at a qualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the mechanical locks replaced. 70
KeyOpening and closing
Problem Possible causes/consequences and
0050
0050Solutions The engine does not
start.
The starter motor can-
not be heard. The on-board voltage is too low. The battery is too weak or dis-
charged.
X
Jump-start the vehicle (Y page 278).
If the engine cannot be jump-started, the starter motor is faulty.
X Consult a qualified specialist workshop. The engine does not
start.
The starter motor can-
not be heard. The battery is discharged or faulty.
X
Check the battery for damage.
X Charge the battery (Y page 266).Automatic transmission
Important safety notes
G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor
R, the vehicle could pull away suddenly. There
is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do
not simultaneously accelerate.
! Vehicles with automatic transmission
may roll only briefly in the neutral position
N. Prolonged rolling of the wheels, e.g.
when being towed, will result in transmis-
sion damage. Selector lever
005D
Park position with parking lock
005E Reverse gear
005C Neutral
005B Drive
The display in the instrument cluster shows
the present selector lever position or the cur-
rent shift range:
R on vehicles with steering wheel buttons
(Y page 189)
R on vehicles without steering wheel buttons
(Y page 184) 144
Automatic transmissionDriving and parking
Disconnecting/connecting the
starter battery
Important safety notes G
WARNING
During the charging process, a battery produ-
ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion.
R Make sure that the positive terminal of a
connected battery does not come into con-
tact with vehicle parts.
R Never place metal objects or tools on a bat-
tery.
R It is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery.
R When jump-starting, make sure that the
battery poles with identical polarity are
connected.
R It is particularly important to observe the
described order when connecting and dis-
connecting the jumper cables.
R Never connect or disconnect the battery
terminals while the engine is running.
Disconnecting the starter battery !
Switch off the engine and remove the key
from the ignition lock before you loosen or
disconnect the terminal clamps. You may
otherwise destroy electronic components
such as the alternator.
Always disconnect the starter battery in the
battery case in the driver's footwell first.
! Always disconnect the battery in
the order described below. Never swap the
terminal clamps. You may otherwise dam-
age the vehicle electronics. Battery cover in the driver's footwell
X Switch off all electrical consumers.
X Switch off the engine and remove the key
from the ignition lock.
X Remove the floor covering in the driver's
footwell ( Ypage 261).
X Loosen screws 0044and slide battery
cover 0043in the direction of the arrow.
The screws must protrude beyond the
larger recesses.
X Remove battery cover 0043upwards. Starter battery in the driver's footwell
X First loosen and remove the negative ter-
minal clamp so that it is no longer in contact
with the terminal.
X Remove the cover from the positive termi-
nal.
X Loosen the positive terminal clamp and fold
it up to the side together with the pre-fuse
box. 262
BatteryMaintenance and care
Disconnecting and connecting the
additional battery (engine compart-
ment)
Important safety notes G
WARNING
During the charging process, a battery produ-
ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion.
R Make sure that the positive terminal of a
connected battery does not come into con-
tact with vehicle parts.
R Never place metal objects or tools on a bat-
tery.
R It is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery.
R When jump-starting, make sure that the
battery poles with identical polarity are
connected.
R It is particularly important to observe the
described order when connecting and dis-
connecting the jumper cables.
R Never connect or disconnect the battery
terminals while the engine is running.
Disconnecting the additional battery !
Switch off the engine and remove the key
from the ignition lock before you loosen or
disconnect the terminal clamps. You may
otherwise destroy electronic components
such as the alternator.
Always disconnect the starter battery in the
battery case in the driver's footwell first.
! Always disconnect the battery in
the order described below. Never swap the
terminal clamps. You may otherwise dam-
age the vehicle electronics. Additional battery in the engine compartment
X Switch off all electrical consumers.
X Switch off the engine and remove the key
from the ignition lock.
X Open the hood (Y page 250).
X First loosen and remove the negative ter-
minal clamp so that it is no longer in contact
with the terminal.
X Remove the cover from the positive termi-
nal.
X Loosen and remove the positive terminal
clamp.
Connecting the additional battery !
Always connect the battery in the order
described below. Never swap the terminal
clamps. You may otherwise damage the
vehicle electronics.
X Connect the positive terminal clamp.
X Attach the cover to the positive terminal.
X Connect the negative terminal clamp.
X Close the hood.
Carry out the following work after connecting
the battery:
X Reset the side windows ( Ypage 79). 264
BatteryMaintenance and care