Emergency running mode .............. 124
Important safety notes .................. 121
Kickdown ....................................... 123
Maneuvering .................................. 123
Overview ........................................ 121
Problem (malfunction) ................... 124
Releasing the parking lock man-
ually ............................................... 124
Selector lever ................................ 121
Selector lever positions ................. 122
Shift ranges ................................... 123
Starting the engine ........................ 118
Touchshift ...................................... 122
Trailer towing ................................. 123
Transmission oil change ................ 279
Automatic transmission emer-
gency mode ....................................... 124
AUX port ............................................. 207
Auxiliary heater
see Auxiliary warm-air heater
see Hot-water auxiliary heater
Auxiliary heating
Activating/deactivating heater
booster mode ................................ 110
Adjusting ....................................... 170
Conditions for switching on ........... 107
Heating time .................................. 106
Important safety notes .................. 105
Operating with the button (control
panel) ............................................ 107
Operation with the remote con-
trol ................................................. 108
Operation with the timer ................ 112
Selecting a switch-on time ............. 107
Setting the switch-on time ............. 108
see Auxiliary heating
see Auxiliary warm-air heater
see Hot-water auxiliary heater
Auxiliary warm-air heater
Problem (malfunction) ................... 115
Axle load, permissible (trailer tow-
ing) ...................................................... 283
B
Backup lamps
Replacing bulbs ............................... 90 Backup lamps (Chassis Cab)
Replacing bulbs ............................... 91
BAS (Brake Assist System)
Display message ............................ 179
Function/notes ................................ 54
Indicator lamp ................................ 191
Basic settings
see Settings
Battery
Isolating switch .............................. 116
Replacing (SmartKey) ...................... 61
Battery (SmartKey)
Checking .......................................... 61
Important safety notes .................... 61
Replacing ......................................... 61
Battery (vehicle)
Care ............................................... 228
Charge indicator lamp ................... 194
Charging ........................................ 228
Disconnecting and connecting ....... 225
Disconnecting and connecting
(engine compartment) ................... 227
Display message ............................ 189
Important safety notes .................. 223
Installing/removing (engine com-
partment) ....................................... 228
Jump starting ................................. 238
Location ......................................... 224
Removing and installing ................. 226
Removing and installing the floor
covering ......................................... 224
Before driving off
Important safety notes .................. 118
Belt
see Seat belts
Belt warning ......................................... 44
Bleeding the fuel system .................. 120
Blind Spot Assist
Activating/deactivating ......... 143, 170
Notes/function .............................. 141
Trailer towing ................................. 143
Bottle holder
see Cup holder
Brake Assist
see BAS (Brake Assist System)
Brake Assist System
see BAS (Brake Assist System)
Index5
Tow-starting (vehicle) ..................... 242
Engine electronics
Notes ............................................. 271
Problem (malfunction) ...................1 20
Engine oil
Adding ...........................................2 18
Additives ........................................ 278
Checking the oil level (on-board
computer) ...................................... 216
Checking the oil level using the
dipstick .......................................... 217
Display message ............................ 186
Filling capacity ............................... 278
Information about oil consump-
tion ................................................ 278
Mixing ............................................ 278
Notes about oil grades ................... 277
Oil change ...................................... 278
Oil level (note) ............................... 216
Viscosity ........................................ 277
Warning lamp ................................. 195
Engine speed setting (working
mode) ................................................. 151
Engine, jump-starting ....................... 238
ESP
®(Electronic Stability Pro-
gram)
Display message ............................ 181
Important safety information ........... 55
Indicator lamp ................................ 194
Warning lamp ................................. 190
Exhaust check ................................... 131
Exhaust gas aftertreatment
DEF level indicator ......................... 159
DEF reducing agent ....................... 275
Diesel Exhaust Fluid (DEF) ............. 275
Display messages (vehicles with
steering wheel buttons) ................. 184
Display messages (vehicles with-
out steering wheel buttons) ........... 175
Indicator lamp ....................... 193, 197
Malfunction ....................................1 84
Refilling DEF .................................. 126
Exterior lighting
see Lights
Exterior mirrors
Adjusting ......................................... 78
Important safety notes .................... 78 Eyegl
asses compartment
................. 201
F
Fire extinguisher............................... 238
First-aid kit ......................................... 237
Flat tire
Changing a wheel/mounting the
spare wheel ................................... 263
General notes ................................ 262
Fog lamps
Switching on/off .............................. 81
Fogged up-up windows
see Climate control
Folding seat ......................................... 74
Frequencies
Mobile phone ................................. 271
Two-way radio ................................ 271
Front fog lamps
Switching on/off .............................. 81
Front interior light
Replacing bulbs ............................... 93
Front windshield
see Windshield
Fuel
Additives (diesel) ........................... 274
Consumption information .............. 275
Consumption statistics .................. 171
Diesel at very low outside temper-atures ............................................ 274
Display message ............................ 185
Driving tips ....................................1 30
Fuel gauge ..................................... 159
Problem (malfunction) ................... 126
Quality (diesel) ............................... 274
Refueling ........................................ 124
Showing the range (on-board
computer with steering wheel but-
tons) .............................................. 171
Showing the range (vehicles with
steering wheel buttons) ................. 171
Tank content/reserve fuel ............. 274
Fuel filter with water separator
draining ......................................... 220
Indicator lamp ................................ 198
Fuel gauge ......................................... 159
Fuel tank
Problem (malfunction) ................... 126
Index11
M
M+S tires............................................ 245
Maintenance ...................................... 221
Malfunctions
Message memory (on-board com-
puter) ............................................. 173
Maximum speed
Speed limitation ............................. 131
Menu (vehicles with steering
wheel buttons)
Audio ............................................. 164
Operation ....................................... 163
Settings .........................................1 65
Telephone ...................................... 172
Message
see Display message
Message memory (on-board com-
puter) ..................................................1 73
Mirrors
Exterior mirrors ................................ 78
Rear-view mirror .............................. 78
Mobile navigation devices ................ 207
Mobile phone ..................................... 207
Important safety notes .................. 206
Pre-installation ............................... 206
Type approval/frequency .............. 271
Mobile phone
see Mobile phone
Mounting wheels
Lowering the vehicle ......................2 67
Mounting a new wheel ................... 266
Preparing the vehicle ..................... 263
Raising the vehicle ......................... 263
Removing a wheel .......................... 265
Removing and mounting the spare wheel ............................................. 269
Securing the vehicle against roll-
ing away ........................................ 263
N
Navigation
Fittings for PND mobile navigation
devices .......................................... 207
Notes on breaking-in a new vehi-
cle ....................................................... 116
O
Occupant safety
Air bags ...........................................4 4
Belt warning ..................................... 44
Children in the vehicle ..................... 47
Important safety notes ....................4 0
Introduction to the restraint sys-
tem .................................................. 40
Pets in the vehicle ........................... 52
Restraint system warning lamp ........ 40
Seat belt .......................................... 41
Odometer
Display (vehicles with steering
wheel buttons) ............................... 164
Display (vehicles without steering
wheel buttons) ............................... 160
Off-road driving
Checklist after driving off-road ...... 136
Important safety notes .................. 135
Rules for driving off-road ............... 136
Oil
see Engine oil
On-board computer
Checking the oil level .....................2 16
Display message ............................ 173
Lighting submenu .......................... 168
On-board computer (vehicles with
steering wheel buttons)
Audio menu ................................... 164
Display message ............................ 161
Menu overview .............................. 163
Operating ....................................... 161
Operation menu .............................1 63
Settings menu ............................... 165
Standard display ............................ 164
Telephone menu ............................ 172
Trip computer menu ......................1 71
On-board computer (vehicles with-
out steering wheel buttons)
Display message ............................ 173
General notes ................................ 160
Setting the clock ............................ 161
Standard display ............................ 160
Operating Instructions
Before the first journey .................... 23
Limited Warranty .............................2 3
14Index
Using thef,g,4or9 adjustment buttons,
you can select the following functions:
RCalling up the service due date
(Ypage 222)
RChecking the oil level (Ypage 216)
RChecking the DEF supply (Ypage 159)
RPreselecting/setting the auxiliary heating
switch-on time (Ypage 107)
RTire pressure monitor(Ypage 249)
RSetting the time (Ypage 161)
RActivating/deactivating Highbeam Assist
(Ypage 168)
RSetting the daytime running lamps
(Ypage 80)
Setting the time
XTurn the SmartKey to position 2in the ignition
lock.
XPress the 4menu button repeatedly until the
hours figure flashes.
XPress the forg button to set the hour.
XPress the 9reset button.
The minute display flashes.
XPress the forg button to set the minute.
iIf you keep the forg button pressed, the
value will change continuously.
Activating/deactivating Highbeam
Assist
XTurn the SmartKey to position 2in the ignition
lock.
XPress the 4menu button repeatedly until the
_ indicator lamp flashes and the onorOFFmessage appears in the display.
XUse the forg button to switch Highbeam
Assist on/off.
Switching the daytime running lamps
on/off
If you switch the daytime running lamps 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 stationary. The
factory setting is on
in countries where daytime
running lamp mode or daytime running lamps
are mandatory.
XTurn the SmartKey to position 2in the ignition
lock.
XPress the 4menu button repeatedly until the
L indicator lamp flashes and the onorOFFmessage appears in the display.
XPress the forg button to activate or deac-
tivate the daytime running lamps.
iUSA only:
If you turn the light switch to TorL,
the corresponding light switches on. If you
turn the light switch to Ã, the daytime
running lamps remain switched on.
Canada only:
If you turn the light switch to L, the low-
beam headlamps switch on. If you turn the
light switch to TorÃ, the daytime run-
ning lamps remain switched on.
On-board computer (vehicles with
steering wheel buttons)
Operating the on-board computer
Overview
XTo activate the on-board computer: turn
the key to position 1in the ignition lock.
The on-board computer shows vehicle informa-
tion and settings in the display.
You can control the display and the settings in
the on-board computer with the buttons on the
steering wheel.
On-board computer (vehicles with steering wheel buttons)161
On-board computer and displays
Z
Menu overview
Diagrams
This is what the displays look like when you scroll through the menus.
Generic terms
The illustration shows the menus on a vehicle
with Audio 15.
On Sound 5/Audio 20, the on-board computer
always shows the AUDIOandTEL (telephone)
menus in English. This is the case even if a dif-
ferent language is selected for the display.
Operation
:Operation menu (Ypage 163)
RStandard display
RCalling up the service due date
(Ypage 222)
RTire pressure monitor (Ypage 249)
RChecking the engine oil level
(Ypage 216)
;Audio menu (Ypage 164)
=Message memory menu (Ypage 173)
?Settings menu (Ypage 165)
ATrip computer menu (Ypage 171)
BTelephone menu (Ypage 172)
iThe generic terms in the tabular overview
should make orientation easier for you. How-
ever, they are not always shown on the dis-
play.
Operation menu
Overview
You can select the following functions in the
Operation menu by pressing the 9or:
button on the steering wheel:
RDisplaying the trip odometer and odometer
(standard display) (Ypage 164)
RDisplaying the coolant temperature
(Ypage 164)
RCalling up the service due date
(Ypage 222)
RTire pressure monitor (Ypage 249)
RChecking the oil level (Ypage 216)
On-board computer (vehicles with steering wheel buttons)163
On-board computer and displays
Z
Overview of the engine compartment
Example: engine
:
Coolant expansion tank cap (Ypage 218)
;DEF filler neck cap (Ypage 126)
=Engine oil filler neck cap (Ypage 216)
?Brake fluid expansion tank cap
(Ypage 219)
AWasher fluid reservoir cap (Ypage 220)
Regularly check the fluid level and the assembly
for leaks. If you detect fluid loss, e.g. oil flecks on
the vehicle parking space, consult a qualified
specialist workshop immediately.
Engine oil
General notes
!Engine oil gets dirty in the course of opera-
tion and its quality and volume are gradually
diminished. Regularly check the oil level, and
top up or have it replaced as needed.
Observe the information on engine oils and oil
consumption in the "Technical data" section
(
Ypage 277).
You can check the oil level in the engine:
Ron the display of the on-board computer
Rwith the oil dipstick
Checking the oil level shown in the dis-
play
If at extremely low temperatures no engine oil
level is displayed after 5 minutes, repeat the
engine oil level check after another 5 minutes.
If an oil level reading is still not displayed, check
the engine oil level with the dipstick
(
Ypage 217). Have the engine oil level checked
at a qualified specialist workshop. Only check the oil level when the engine is at
normal operating temperature.
XPark the vehicle on a level surface.
XSwitch off the engine.
XWait 5 minutes.
XTurn the key to position
2in the ignition lock.
The display is activated.
XVehicles without steering wheel buttons:
press the 4menu button on the instrument
cluster (
Ypage 33) repeatedly until the dis-
play shows the 1symbol.
The --:--
display message appears in the
display while the engine oil level measure-
ment is running.
XVehicles with steering wheel buttons:
press the Ëservice button on the instrument
cluster (
Ypage 33).
The 4 Engine oil level Measuring
inprogressdisplay message appears in the
display while the engine oil level measure-
ment is in progress.
Display message for vehicles without steer-
ing-wheel buttons: the display may show the
following messages after the engine oil level
measurement.
1Action
OKXDo not add oil.
– 1.0 qtsXAdd the amount of oil
shown (Ypage 218).
XCheck the engine oil level
again after a few minutes.– 1.5 qts
– 2.0 qts
HIThe oil level is too high.
XHave excess oil removed.
Measurement units in the display:
RqtsUSA only
RltrCanada only
Display message for vehicles with steering- wheel buttons: the display may show the fol-
lowing messages after the engine oil level meas-
urement.
1Action
Engineoillevel OKXDo not add oil.
216Engine compartment
Maintenance and care
EngineoilAdd1.0 quart
XAdd the amount of oil
shown (Ypage 218).
XCheck the engine oil level
again after a few minutes.
EngineoilAdd1.5quarts
EngineoilAdd2.0quarts
EngineoillevelReduceoillevel
The oil level is too high.
XHave excess oil removed.
Eng. oillev. Turnignitionon forlevel
XTurn the key to position2in
the ignition lock.
Observewait.period
XRepeat the engine oil
measurement after about
5 minutes if the engine is at
normal operating tempera-
ture.
XRepeat the engine oil
measurement after about
30 minutes if the engine is
not at normal operating
temperature.
Engineoillevel Notwhen eng.running
XSwitch off the engine when it is at normal operating
temperature and wait
approximately 5 minutes
before measuring the
engine oil level.
Measurement units in the display:
RqtsUSA only
RltrCanada only
Checking the oil level using the oil dip-
stick
Example: 4-cylinder diesel engine
Example: 6-cylinder diesel engine
For vehicles with a red oil dipstick, only check
the oil level when the engine is at normal oper-
ating temperature:
XStop your vehicle as far away from traffic as
possible on level ground.
XSecure the vehicle to prevent it from rolling
away.
XSwitch off the engine.
XWait 5 minutes.
For vehicles with a yellow oil dipstick, only check
the oil level when the engine is cold.
XStop your vehicle as far away from traffic as
possible on level ground.
XSecure the vehicle to prevent it from rolling
away.
XOpen the hood (Ypage 214).
XPull out oil dipstick :.
XWipe oil dipstick:using a lint-free cloth.
Engine compartment217
Maintenance and care
Z
Example: cap and coolant expansion tank
Checking the coolant level
XStop your vehicle as far away from traffic as
possible on level ground.
XSwitch off the engine.
XSecure the vehicle to prevent it from rolling
away.
XOpen the hood (Ypage 214).
XSlowly turn cap:half a turn counter-clock-
wise to allow excess pressure to escape.
XTurn cap :further and remove it.
XCheck the coolant level.
If the coolant reaches the maximum mark on
coolant expansion tank ;, there is enough
coolant in coolant expansion tank ;.
Adding coolant
XIf the coolant drops under the minimum mark
on coolant expansion tank ;, add coolant to
the maximum mark.
Observe the information on coolant mixture
ratio and water quality in the "Technical data"
section (
Ypage 280). To prevent damage to
the engine cooling system, use only approved
corrosion inhibitor and antifreeze that com-
plies with the Mercedes-Benz Specifications
for Service Products.
XReplace cap :and turn it clockwise to
tighten.
XStart the engine.
XAfter approximately 5 minutes, switch off the
engine and allow it to cool down.
XCheck the coolant level again and add coolant
if necessary.
XClose the hood.
Brake fluid
GWARNING
Service products may be poisonous and haz-
ardous to health. There is a risk of injury.
Comply with instructions on the use, storage
and disposal of service products on the labels
of the respective original containers. Always
store service products sealed in their original
containers. Always keep service products out
of the reach of children.
Brake fluid is hazardous to health. Also observe
the safety notes in the "Service products and
capacities" section (
Ypage 273).
GWARNING
The brake fluid constantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. This would impair braking efficiency.
There is a risk of an accident.
You should have the brake fluid renewed at
the specified intervals.
!Brake fluid corrodes paint, plastic and rub-
ber. If paint, plastic or rubber has come into
contact with brake fluid, rinse with water
immediately.
Have the brake fluid renewed every 2 year sat a
qualified specialist workshop. Observe the infor- mation on brake fluid in the "Technical data"
section (
Ypage 279).
Check the brake fluid level regularly, e.g. weekly
or when refueling.
Engine compartment219
Maintenance and care
Z