
Index....................................................... 4
Introduction......................................... 23
Operating Instructions .......................... .23
Service and vehicle operation ................ 23
Proper use ............................................. 25
Protection of the environment ............... 25
Operating safety and vehicle approval
............................................................... 26
Genuine Mercedes-Benz parts ............... 29
QR code for rescue card ........................ 30
Data stored in the vehicle ...................... 30
At a glance ........................................... 33
Cockpit .................................................. 33
Instrument cluster ................................. 34
Steering wheel buttons .......................... 37
Center console ...................................... 37
Overhead control panel ......................... 38
Door control panel ................................. 39
Further control panels ........................... 39
Safety ................................................... 41
Useful information ................................. 41
Occupant safety .................................... 41
Children in the vehicle ........................... 49
Pets in the vehicle ................................. 54
Driving safety systems ........................... 54
Emergency exit ...................................... 57
Theft deterrent locking system .............. 58
Opening and closing ...........................61
Useful information ................................. 61
Key ........................................................ 61
Central locking ...................................... 65
Driver's door and front-passenger
door ....................................................... 66
Sliding door ........................................... 67
Electrical step ........................................ 68
Rear doors ............................................. 69
Partition sliding door ............................. 71
Side windows ......................................... 72
Seats, steering wheel and mirrors ....74
Useful information ................................. 74
Seats ..................................................... 74
Steering wheel ....................................... 79
Mirrors ................................................... 80
Lights and windshield wipers ............82
Useful information ................................. 82
Exterior lighting ..................................... 82
Interior lighting ...................................... 87
Changing bulbs ...................................... 89
Windshield wipers .................................. 96
Climate control .................................... 99
Useful information ................................. 99
Overview of climate control systems ..... 99
Operating the climate control system .. 102
Adjusting the air vents ......................... 106
Operating the auxiliary heating sys-
tem ...................................................... 107
Operating the cargo compartment air
vents .................................................... 117
Driving and parking ..........................118
Useful information ............................... 118
Breaking-in notes ................................. 118
Driving ................................................. 118
Automatic transmission ....................... 123
Refueling ............................................. 126
Parking ................................................ 129
Driving tips .......................................... 132
Driving systems ................................... 139
Working mode ..................................... 153
Towing a trailer .................................... 154
On-board computer and displays ....160
Useful information ............................... 160
Important safety notes ........................ 160
Instrument cluster ............................... 160
On-board computer (vehicles without
steering wheel buttons) ....................... 162
On-board computer (vehicles with
steering wheel buttons) ....................... 163
Display messages ................................ 175
2Contents

Indicator and warning lamps in the
instrument cluster ............................... 195
Stowing and features.......................205
Useful information ............................... 205
Stowage spaces and stowage com-
partments ............................................ 205
Cup holder ........................................... 209
Bottle holder ........................................ 209
Ashtray ................................................ 210
Cigarette lighter ................................... 210
12-V socket .........................................2 11
Mobile phone ....................................... 211
Additional communications equip-
ment .................................................... 212
Transporting loads ............................213
Useful information ............................... 213
Loading guidelines ............................... 213
Load distribution ................................. 215
Securing loads ..................................... 215
Carrier systems ................................... 217
Maintenance and care ......................219
Useful information ............................... 219
Engine compartment ........................... 219
Vehicle interior ....................................2 26
Maintenance ........................................ 226
Battery ................................................. 228
Care ..................................................... 234
Breakdown assistance .....................241
Useful information ............................... 241
Where will I find...? .............................. 241
Flat tire ................................................ 243
Jump-starting ....................................... 243
Tow-starting and towing away ............. 244
Electrical fuses ....................................2 47
Wheels and tires............................... 248
Useful information ............................... 248
Important safety notes ........................ 248
Operation ............................................ 248
Operation in winter .............................. 250
Tire pressure ....................................... 251 Loading the vehicle .............................. 259
What you should know about wheels
and tires .............................................. 262
Flat tire ................................................ 267
Changing wheels ................................. 267
Wheel and tire combination ................. 273
Spare wheel ......................................... 273
Technical data
................................... 276
Useful information ............................... 276
Vehicle electronics .............................. 276
Identification plates .............................2 76
Service products and capacities .......... 278
Vehicle data ......................................... 286
Contents3

Selector lever ................................ 123
Selector lever positions ................. 124
Shift ranges ................................... 125
Starting the engine ........................ 120
Touchshift ...................................... 124
Trailer towing ................................. 125
Transmission oil change ................ 284
Automatic transmission emer-
gency mode ....................................... 126
AUX port ............................................. 212
Auxiliary heater
see Auxiliary warm-air heater
see Hot-water auxiliary heater
Auxiliary heating
Activating/deactivating heater
booster mode ................................ 112
Adjusting ....................................... 172
Conditions for switching on ........... 109
Heating time .................................. 108
Important safety notes .................. 107
Operating with the button (control
panel) ............................................ 109
Operation with the remote con-
trol ................................................. 110
Operation with the timer ................ 114
Selecting a switch-on time ............. 109
Setting the switch-on time ............. 110
see Auxiliary heating
see Auxiliary warm-air heater
see Hot-water auxiliary heater
Auxiliary warm-air heater
Problem (malfunction) ................... 117
Setting the departure time ............. 116
Axle load, permissible (trailer tow-
ing) ...................................................... 288
B
Backup lamps
Replacing bulbs ............................... 92
Backup lamps (Chassis Cab)
Replacing bulbs ............................... 93
BAS (Brake Assist System)
Display message ............................ 182
Function/notes ................................ 56
Indicator lamp ................................ 196
Basic settings
see Settings Battery
Replacing (SmartKey) ...................... 63
Battery (SmartKey)
Checking .......................................... 63
Important safety notes .................... 63
Replacing ......................................... 63
Battery (vehicle)
Care ............................................... 233
Charging ........................................ 233
Disconnecting/connecting (addi-
tional battery) ................................ 232
Disconnecting/connecting
(starter battery) ............................. 230
Display message ............................ 194
Important safety notes .................. 228
Indicator lamp ................................ 199
Installing/removing (additional
battery) .......................................... 233
Jump starting ................................. 243
Location ......................................... 229
Main switch ................................... 118
Removing and installing (starter
battery) .......................................... 231
Removing and installing the floor
covering ......................................... 229
Before driving off
Important safety notes .................. 120
Belt
see Seat belts
Belt warning ......................................... 45
Bio-diesel ........................................... 279
Bleeding the fuel system .................. 122
Blind Spot Assist
Activating/deactivating (button) .... 145
Activating/deactivating (vehicle
with steering wheel buttons) ......... 172
Display messages (vehicles with
steering wheel buttons) ................. 192
Display messages (vehicles with-
out steering wheel buttons) ........... 180
Notes/function .............................. 143
Trailer towing ................................. 145
Bottle holder
see Cup holder
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Checking the level ......................... 224
Index5

Display message ............................ 183
Notes ............................................. 284
Warning lamp ................................. 197
Brake force distribution
Display message ............................ 183
see EBD (electronic brake force
distribution)
Brake lamps
Replacing bulbs ............................... 92
Brake lamps (Chassis Cab)
Replacing bulbs ............................... 93
Brake linings
Display message ............................ 182
Indicator lamp ................................ 199
Brake pads/linings
New ............................................... 135
Brake system
Warning lamp ................................. 196
Brakes
ABS .................................................. 54
Adaptive Brake Assist .................... 142
Applying the parking brake ............ 130
BAS .................................................. 56
Brake fluid (notes) ......................... 284
Checking brake fluid level .............. 224
Display message ............................ 183
EBD .................................................. 56
Important safety notes .................. 134
New brake pads/linings ................ 135
Parking brake (notes) ..................... 135
Riding tips ...................................... 134
Breakdown
Fire extinguisher ............................ 243
First-aid kit .................................... 242
Jump-starting ................................. 243
Reflective safety jacket .................. 242
Vehicle tool kit ............................... 241
Warning lamp ................................. 242
Warning triangle ............................ 242
see Towing away
Bulb failure indicator .......................... 82
C
California
Important notice for retail cus-
tomers and lessees .......................... 23 Car
see Vehicle
Care
Access step in the bumper ............ 238
Car wash ........................................ 234
Display ........................................... 238
Exterior lights ................................ 237
Interior ........................................... 238
Notes ............................................. 234
Paint .............................................. 236
Plastic trim .................................... 239
Power washer ................................ 235
Rear view camera .......................... 237
Roof lining ...................................... 239
Seat belt ........................................ 239
Seat cover ..................................... 239
Selector lever ................................ 239
Sensors ......................................... 237
Sliding door ................................... 238
Steering wheel ............................... 239
Step (electrical) ............................. 238
Trim pieces .................................... 239
Washing by hand ........................... 235
Washing the engine ....................... 235
Wheels ........................................... 236
Windows ........................................ 236
Wiper blades .................................. 236
Cargo compartment
Activating/deactivating ventila-
tion ................................................ 117
Cargo compartment floor ................... 29
Cargo tie-down points and tie
downs
Important safety notes .................. 215
Cargo tie-down rings
Installing ........................................ 217
Permissible tensile load ................. 287
Carrier system
Ladder rack ................................... 218
Center console overview .................... 37
Central locking
Automatic locking ............................ 66
Important safety notes .................... 65
Locking/unlocking (buttons) ........... 65
Locking/unlocking (SmartKey) ........ 61
Locking/unlocking manually ............ 65
Central locking system
see Central locking
6Index

Driving systemsBlind Spot Assis t............................ 14 3
Cruis econtrol ................................ 13 9
Displa ymessage ............................ 19 1
Lan eKeepin gAssis t...................... 14 5
PARKTRONI C................................. 150
Driving tips
Automati ctransmissio n................ .125
Brakes ...........................................1 34
Break-in period .............................. 118
Checking brake lining thickness .... 135
Downhill gradient ........................... 134
Drinking and driving ....................... 132
Driving abroad ............................... 133
Driving in winter .............................1 36
Driving on flooded roads ................ 136
Driving on wet roads ......................1 36
Exhaust check ............................... 133
Fuel ................................................ 132
General .......................................... 132
Hydroplaning ................................. 136
Icy road surfaces ........................... 136
Important safety notes .................. 118
Limited braking efficiency on sal-
ted roads ....................................... 135
New brake disks ............................ 135
New brake pads/linings ................ 135
Off-road driving .............................. 137
Overrun cut-off .............................. 132
Snow chains .................................. 251
Speed limitation .............................1 33
Towing a trailer .............................. 154
Transport by rail .............................1 34
Wet road surface ........................... 135
DSR (Downhill Speed Regulation) .... 148
E
EBD (electronic brake force distri-
bution)
Display message ............................ 183
Function/notes ................................ 56
Indicator lamps .............................. 196
Electrical closing assist ......................68
Electrical step
Cleaning ........................................ .238
Display message ............................ 194
Emergency release .......................... 68 Function ...........................................6
8
Important safety notes .................... 68
Indicator lamp ................................ 204
Manual retraction ............................ 68
Obstacle detection ........................... 68
Electrical system
Battery main switch ....................... 118
Electronic brake force distribution
see EBD (electronic brake force
distribution)
Electronic Stability Program
see ESP
®(Electronic Stability Program)
Emergency exit .................................... 57
Emergency exit window .....................57
Emergency Tensioning Devices
Activation ........................................ .47
Emissions control
Service and warranty information .... 23
Engine
ADR (working speed governor) ...... 153
Changing the power output ............ .27
Check Engine warning lamp .......... .201
Cleaning instructions ..................... 235
Engine number ............................... 278
Engine speed setting (working
mode) ............................................ 154
Irregular running ............................ 122
Jump-starting ................................. 243
Operating safety .............................. 27
Starting .......................................... 120
Starting problems .......................... 122
Switching off .................................. 131
Tow-starting (vehicle) ..................... 247
Engine electronics
Notes ............................................. 276
Probl
em (malfunction) ................... 122
Engine oil
Adding ...........................................2 23
Additives ........................................ 283
Checking the oil level (on-board
computer) ...................................... 221
Checking the oil level using the
dipstick .......................................... 222
Display message ............................ 191
Filling capacity ............................... 283
Information about oil consump-
tion ................................................ 283
Mixing ............................................ 283
10Index

Operator's ManualGeneral notes ................................. .23
Vehicle equipment ........................... 23
Outline lamp
Replacing bulbs ............................... 94
Outside temperature display ........... 161
Overhead control panel ...................... 38
Overrevving range ............................. 161
Overrun cutoff ................................... 132
P
Paintwork (cleaning instructions) ... 236
Paper holder ...................................... 208
Parking ............................................... 129
Important safety notes .................. 129
Parking brake ................................ 130
Wheel chock .................................. 131
see PARKTRONIC
Parking aid
see PARKTRONIC
Parking assistance
see PARKTRONIC
Parking brake
Display message ............................ 184
Notes/function .............................. 130
Parking brake
see Parking brake
Parking lamps
Replacing bulbs ............................... 91
Switching on/off .............................. 82
PARKTRONIC
Deactivating/activating ................. 152
Driving system ............................... 150
Function/notes ............................. 150
Important safety notes .................. 150
Problem (malfunction) ................... 153
Range of the sensors ..................... 150
Roll-back warning .......................... 152
Trailer towing ................................. 152
Warning display ............................. 151
Partition sliding door
Important safety notes .................... 71
Opening/closing .............................. 71
Passenger compartment air-condi-
tioning system
see Climate control Passenger compartment heating
see Climate control
Perimeter lamp
Replacing bulbs ............................... 93
Perimeter/side marker lamp
Changing bulbs ................................ 91
Pets in the vehicle ............................... 54
Plastic trim (cleaning instruc-
tions) .................................................. 239
Power assistance for the steering
Display message ............................ 194
Warning lamp ................................. 204
Power supply
Battery isolating switch ................. 118
Switching off .................................. 119
Switching on .................................. 119
Power take-off
Engine speed setting ..................... 153
Power washers .................................. 235
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 e
nvironment
General notes .................................. 25
Pulling away ...................................... 121
Q
QR code
Rescue card ..................................... 30
Qualified specialist workshop ........... 27
R
Radiator cover..................................... 29
Radio
Changing stations (vehicles with
steering wheel buttons) ................. 166
see separate operating instructions
Radio-wave reception/transmis-
sion in the vehicle
Declaration of conformity ................ 27
Rain and light sensor
Setting the sensitivity (vehicles
with steering wheel buttons) ......... 171
Index15

Sidewall (definition) ....................... 266
Snow chains .................................. 251
Speed rating (definition) ................ 265
Storing ........................................... 267
Structure and characteristics
(definition) ..................................... 264
Summer tires ................................. 250
TIN (Tire Identification Number)
(definition) ..................................... 266
Tire bead (definition) ...................... 266
Tire pressure (definition) ................ 266
Tire pressures (recommended) ...... 265
Tire size designation, load-bearing
capacity, speed rating .................... 262
Tire tread ....................................... 249
Tire tread (definition) ..................... 266
Total load limit (definition) ............. 266
Traction (definition) ....................... 266
TWR (permissible trailer drawbar
noseweight) (definition) ................. 266
Uniform Tire Quality Grading
Standards (definition) .................... 265
Wear indicator (definition) ............. 266
Wheel rim (definition) .................... 265
Wheel/tire combinations ............... 273
Top Tether ............................................ 52
Touchshift (automatic transmis-
sion) .................................................... 124
Tow-away alarm
Arming/deactivating ........................ 59
Deactivating ..................................... 59
Operation ......................................... 59
Tow-starting
Emergency engine starting ............ 247
Important safety notes .................. 244
Towing
If the vehicle is stuck ..................... 246
Installing/removing the towing
eye ................................................. 245
With a raised front or rear axle ...... 246
Towing a trailer
Axle load, permissible .................... 288
Cleaning the trailer tow hitch ......... 238
Coupling up a trailer ...................... 156
Decoupling a trailer ....................... 157
Driving tips .................................... 154
Important safety notes .................. 154
Notes on retrofitting ...................... 288 Trailer loads ................................... 288
Towing away
Imp ortant sa
fety guidelines ........... 244
In the event of malfunctions .......... 245
With both axles on the ground ....... 246
Trailer
Brake force booster malfunction ... 197
Trailer coupling
see Towing a trailer
Trailer loads and drawbar nose-
weights ............................................... 158
Trailer towing
Blind Spot Assist ............................ 145
PARKTRONIC ................................. 152
Permissible trailer loads and
drawbar noseweights ..................... 158
Transmission
see Automatic transmission
Transmission oil ................................ 284
Transport
Loading guidelines ......................... 213
Vehicle ........................................... 247
Transport by rail ................................ 134
Transportation
Rail ................................................ 134
Transporting
Load distribution ............................ 215
Securing a load .............................. 215
Trim pieces (cleaning instruc-
tions) .................................................. 239
Trip computer (on-board com-
puter) .................................................. 173
Trip odometer
Display (vehicles with steering
wheel buttons) ............................... 166
Display (vehicles without steering
wheel buttons) ............................... 162
Resetting ....................................... 161
see Trip computer (on-board computer)
Turn signals
Replacing bulbs (front) ..................... 91
Replacing bulbs (rear) ...................... 92
Switching on/off .............................. 84
Turn signals (Chassis Cab)
Replacing bulbs (rear) ...................... 93
Twin front-passenger seat
Stowage compartment .................. 207
20Index

Two-way radiosType approval/frequency .............. 276
TWR (Tongue Weight Rating) (defi-
nition) ................................................. 266
Type plate
Vehicle identification number
(VIN) .............................................. 276
U
UnlockingFrom inside the vehicle (central
unlocking button) ............................. 65
USB port ............................................. 212
V
Vehicle
Data acquisition ............................... 30
Display message ............................ 194
Electronics ..................................... 276
Equipment ....................................... 23
Individual settings (vehicles with
steering wheel buttons) ................. 167
Limited Warranty ............................. 23
Loading .......................................... 259
Locking (SmartKey) .......................... 61
Lowering ........................................ 272
Maintenance .................................... 24
Operating safety .............................. 26
Parking for a long period ................ 131
Pulling away ................................... 121
Raising ........................................... 268
Registration ..................................... 28
Reporting problems ......................... 28
Securing from rolling away ............ 129
Towing away .................................. 244
Transporting .................................. 247
Unlocking (SmartKey) ...................... 61
Vehicle battery
see Battery (vehicle)
Vehicle bodies ..................................... 28
Body/equipment mounting direc-
tives for trucks ................................. 28
Vehicle data ....................................... 286
Vehicle identification number .......... 276
Vehicle identification plate .............. 276
Vehicle tool kit .................................. 241 VIN
...................................................... 276
Voltage supply
Fuses ............................................. 247
W
WarningStickers ........................................... 25
Warning and indicator lamp
Power assistance for the steering .. 204
Warning and indicator lamps
Brakes ........................................... 197
Check Engine ................................. 201
Coolant .......................................... 200
Diesel Exhaust Fluid (DEF) ............. 198
Distance warning function ............. 195
Electrical step ................................ 204
ESP
®.............................................. 195
ESP®function ................................ 199
Lane Keeping Assist ...................... 195
Overview .......................................... 35
Seat belt ........................................ 203
Warning lamp .................................... 242
Warning triangle ................................ 242
Warning- and indicator lamps
ABS ................................................ 196
Air filter .......................................... 202
ASR ................................................ 195
BAS ................................................ 196
Battery charge ............................... 199
Brake wear .................................... 199
Bulbs .............................................. 203
Doors ............................................. 203
Engine oil level ............................... 200
Preglow .......................................... 202
Reserve fuel ................................... 201
Tire pressure monitor .................... 202
Water separator ............................. 203
Windshield washer fluid ................. 203
Warranty .............................................. 23
Washer fluid
Adding ........................................... 225
Capacities ...................................... 286
Display message ............................ 194
Indicator lamp ................................ 203
Notes ............................................. 286
Wiping with ...................................... 96
Index21