Fog lamps
Switching on/off .............................. 94
Folding seat ......................................... 85
Folding table ...................................... 236
In the twin co-driver's sea t............ 236
Frequencies
Mobile phone ................................. 318
Two-way radio ................................ 318
Front fog lamps
Switching on/off .............................. 94
Front interior light
Replacing bulbs ............................. 106
Front windshield
see Windshield
Fuel
Additives (diesel )........................... 323
Consumption information ..............323
Consumption statistics ..................197
Diesel at very low outside temper-
atures ............................................ 323
Display message ............................ 215
Driving tips .................................... 154
Fuel gauge ..................................... 183
Important safety notes ..................321
Problem (malfunction) ...................149
Quality (diesel )............................... 322
Refueling ........................................ 148
Showing the range (on-board
computer with steering wheel but-
tons) .............................................. 197
Showing the range (vehicles with
steering wheel buttons) .................197
Tank content/reserve fuel .............322
Fuel filter with water separator
draining ......................................... 257
Indicator lamp ................................ 229
Fuel gauge ......................................... 183
Fuel tank Problem (malfunction) ...................149
Fuel tank content
Reserve, display message ..............215
Fuses .................................................. 283 G
Gasoline Reserve fuel warning lamp .............227
General driving tips
Driving short distances ..................155
Genuine parts .................................... 318
Glove box ........................................... 232
GTW (Gross Trailer Weight) (defini-
tion) .................................................... 305
Guarantee ............................................ 23 H
Hazard warning lamps ........................96
Headlamps Adding fluid to cleaning system .....257
Cleaning system (function) ..............96
Fogging up ....................................... 98
see Automatic headlamp mode
Headliner (cleaning instructions) ....273
Head restraints Adjusting ......................................... 86
Adjusting (rear) ................................ 86
Heating
see Climate control
Highbeam Assist
Function/notes ................................ 97
Switching Highbeam Assist on/
off .................................................. 194
High-beam headlamps
Highbeam Assist .............................. 97
Replacing bulbs ............................. 101
Switching on/off .............................. 95
Hood
Closing .......................................... .251
Display message ............................ 220
Indicator lamp ................................ 230
Opening ......................................... 250
Hydroplaning ..................................... 157 I
Immobilizer .......................................... 62
Indicator lamp see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator ......28 Index
11
i
The screwdriver from the vehicle tool kit
could function as the implement, for
instance (Y page 276). Refueling
Important safety notes
G
WARNING
Fuel is highly flammable. Improper handling
of fuel creates a risk of fire and explosion.
Avoid fire, open flames, smoking and creating
sparks under all circumstances. Switch off the
engine and, if applicable, the auxiliary heating
before refueling. G
WARNING
Fuel is poisonous and hazardous to health.
There is a risk of injury.
You must make sure that fuel does not come
into contact with your skin, eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel away from children.
If you or others come into contact with fuel,
observe the following:
R Wash away fuel from skin immediately
using soap and water.
R If fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance with-
out delay.
R If fuel is swallowed, seek medical assis-
tance without delay. Do not induce vomit-
ing.
R Immediately change out of clothing which
has come into contact with fuel. G
WARNING
If you mix diesel fuel with gasoline, the flash
point is lower than that of pure diesel fuel.
When the engine is running, exhaust system
components could overheat without being
noticed. There is a risk of fire.
Never refuel with gasoline. Never mix gasoline
with diesel fuel. H
Environmental note
If fuels are handled improperly, they pose a
danger to persons and the environment. Do
not allow fuels to run into the sewage system,
the surface waters, the ground water or into
the ground.
! Do not use gasoline to refuel vehicles with
a diesel engine. Even small amounts of gas-
oline will cause damage to the fuel system
and engine.
! Do not switch on the ignition if you acci-
dentally refuel with the wrong fuel. Other-
wise, the fuel will enter the fuel lines. Notify
a qualified specialist workshop and have
the fuel tank and fuel lines drained com-
pletely.
! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Filter the fuel before transferring it to the
vehicle if you are refueling the vehicle from
barrels or containers.
This will prevent malfunctions in the fuel
system due to contaminated fuel.
Further information on fuel and on fuel grades
can be found in the "Technical data" section
(Y page 321). Refueling procedure148
RefuelingDriving and parking
The fuel filler flap is beside the front left-hand
door when viewed in the direction of travel. It
is only possible to open the fuel filler flap
when the front door is open.
X Remove the key from the ignition lock.
X Switch off the auxiliary heating system
(Y page 122).
X Open the front left-hand door first, and then
the fuel filler flap.
X Close all vehicle doors to prevent fuel
vapors from entering the vehicle.
X Turn fuel filler cap 0044counter-clockwise,
remove it and let it hang from strap 0043.
X Completely insert the filler neck of the fuel
pump nozzle into the tank and refuel.
X Only fill the tank until the pump nozzle
switches off. Fuel may otherwise leak out.
X Replace tank filler cap 0044and turn clock-
wise.
You will hear a click when the fuel filler cap
is closed fully.
X Open the front left-hand door first, and then
close the filler flap. Problems with the fuel and fuel tank
If your vehicle is losing fuel, the fuel lines or
the fuel tank are defective.
X Turn the key to position 0in the ignition
lock immediately and remove it.
X Do not restart the engine under any cir-
cumstances.
X Consult a qualified specialist workshop. Diesel Exhaust Fluid (DEF)
Important safety notes H
Environmental note
Dispose of DEF in an environmentally respon-
sible manner.
! Only use DEF in accordance with
ISO 22241. Never mix DEF with additives or thin it with tap water. The exhaust gas
aftertreatment may otherwise be dam-
aged.
Observe the MB Specifications for Service
Products, Sheet 352.0.
Damage that results from the use of addi-
tives or tap water leads to the loss of the
New Vehicle Limited Warranty.
! If DEF comes into contact with a painted
or aluminum surface, wash the surface off
immediately with plenty of water.
! DEF is not a diesel additive and must not
be mixed with fuel in the tank. Even small
amounts of DEF can cause engine damage.
Damage that results from the blending of
DEF will not be covered by the New Vehicle
Limited Warranty.
The exhaust gas aftertreatment requires a
reducing agent, Diesel Exhaust Fluid (DEF), in
order to function correctly.
When opening the DEF tank filler cap at high
outside temperatures, ammonia vapors may
escape.
Ammonia vapors have a pungent smell and
primarily cause irritation of the:
R skin
R mucous membranes
R eyes
You may experience a burning sensation in
your eyes, nose and throat, as well as cough-
ing and watering of the eyes.
Do not inhale ammonia vapors. Avoid contact
with DEF.
Do not allow DEF to come into direct contact
with your skin; it is hazardous to your health.
Rinse any affected areas off with plenty of
clean water. Consult a doctor if necessary.
i If the DEF level has dropped below the
reserve range, add at least 2.0 US gal
(7.6 l) of DEF at the latest after receiving
the second warning message
(Y page 184). Refueling
149Driving and parking Z
ITY). These documents are supplied when
the vehicle is delivered.
Consumption figures were found in the cur-
rently valid respective version:
R for vehicles from the Euro 5 standard
according to regulation (EC) no.
715/2007
R for vehicles from the Euro 6 standard
according to regulation (EC) no.
595/2009
Fuel consumption depends on:
R the vehicle version
R the style of driving
R the operating conditions
R the type or quality of the fuel used
The vehicle will use more fuel than usual in
the following situations:
R at very low outside temperatures
R in city traffic
R during short journeys
R on mountainous terrain
R when towing a trailer
To keep fuel consumption low, observe the
advice in the "Protection of the environment"
section (Y page 22).
The following components of the different
vehicle versions influence fuel consumption:
R tire sizes, tire tread, tire pressure, tire con-
dition
R body
R transmission ratios for the drive assem-
blies
R additional equipment (e.g. air-conditioning
system, auxiliary heating system).
For these reasons, the actual consumption
figures for your vehicle may deviate from the
consumption figures determined according
to EU Directive 80/1268/EEC.
Data concerning fuel consumption are
recorded in the on-board computer; use the
steering wheel buttons to call up the Trip
computer menu (Ypage 197). Diesel Exhaust Fluid (DEF) General notes
!
Only use DEF in accordance with
ISO 22241. The exhaust gas aftertreatment
system may otherwise be damaged.
Observe the MB Specifications for Service
Products, Sheet No. 352.0.
Damage caused by the use of other reduc-
ing agents will invalidate the New Vehicle
Limited Warranty.
! If DEF comes into contact with a painted
or aluminum surface, wash the surface off
immediately with plenty of water.
High ambient temperatures
When opening the DEF tank filler cap at high
outside temperatures, ammonia vapors may
escape. Ammonia vapors have a pungent
odor and are particularly irritating for your
skin, respiratory organs and eyes. This may
result in burning eyes, nose and throat, as
well as coughing and watering eyes. Do not
inhale ammonia vapors.
If DEF heats up, e.g. in direct sunlight, in the
DEF supply reservoir for some time to over
122 ‡ (50 †), ammonia vapor will develop.
Low ambient temperatures
DEF freezes at a temperature of approx-
imately 12 ‡(00F811 †). The vehicle is equipped
with a DEF preheating system at the factory.
Winter operation is therefore also guaranteed
at temperatures under 12 ‡ (00F811 †).
Additives and tap water
! Do not mix DEF with any additives and do
not dilute DEF with tap water. Otherwise,
the exhaust gas aftertreatment may be
damaged.
Observe the MB Specifications for Service
Products, Sheet No. 352.0.
Damage that arises through the use of addi-
tives or tap water will invalidate the New
Vehicle Limited Warranty. 324
Service products and capacitiesTechnical data