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
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
Service products include the following:
R Fuels, e.g. diesel
R Additives for the exhaust gas aftertreat-
ment, e.g. Diesel Exhaust Fluid (DEF)
R Lubricants, e.g. engine oil, transmission oil
R Coolant
R Brake fluid
R Washer fluid
R Climate control system refrigerants
Approved service products comply with the
highest quality standards and are listed in the
MB Specifications for Service Products. Only
use service products approved for the vehi-
cle. This is an important condition for the war-
ranty.
You will recognize the approved service prod-
ucts by the inscription on the container: MB
Approval (e.g. MB Approval 228.5)
Other identifications and recommendations
refer to quality level or a specification accord-
ing to an MB Sheet Number (e.g. MB 228.5).
They are therefore not necessarily approved.
Further information can be obtained at any
qualified specialist workshop.
Additives for approved service products are
neither required nor permitted. Approved fuel
additives are the exception. Additives can
cause engine damage and must therefore not
be added to the service products.
The use of additives is always the responsi-
bility of the vehicle operator. The use of addi-
tives may result in the restriction or loss of
your Limited Warranty entitlements. Fuel
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.
When handling, storing and disposing of fuels,
please observe the relevant regulations. Service products and capacities
321Technical data Z
R
diesel fuel with a bio-diesel content of
more than 7%
R diesel fuel with a bio-diesel content of up
to 7%, which does not fulfill the require-
ments stated under "Fuel grade"
The sulfur content of the diesel fuel may not
exceed the following values: Euro 6 diesel engine 50 ppm
Euro 5 diesel engine ≥ 50 ppm
Euro 4 diesel engine ≥ 500 ppm
Euro 3 diesel engine ≥ 2500 ppm
You will generally find information about the
fuel grade on the filling pump. If there is no
identification on the filling pump, consult a
gas station attendant.
For more information about refueling
(Y
page 148).
i You can obtain information about modifi-
cation options for operation with alterna-
tive fuels (bio-diesel fuels) from any author-
ized Mercedes-Benz Center.
Diesel at very low outside temperatures G
WARNING
If you heat fuel system components, e.g. with
a hot-air gun or open flame, these compo-
nents could be damaged. This can cause fuel
to escape and ignite. Depending on the type
of damage, fuel may also not escape until the
engine is running. There is a risk of fire and
explosion.
Never heat fuel system components. Contact
a qualified specialist workshop to rectify the
malfunction.
Refill only with commercially available
ULTRA-LOW SULFUR DIESEL (ULSD, maxi-
mum sulfur content 15 ppm), which fulfills the
ASTM D975 standard.
The flow properties of diesel may be inade-
quate at low outside temperatures due to
paraffin separation. i
Malfunctions resulting from paraffin sep-
aration can only be rectified by heating the
entire fuel system. Park the vehicle in a
heated garage, for example.
To prevent operating problems, diesel with
better flow qualities is available during the
winter months. You can obtain information at
the gas station or from your fuel supplier.
Your vehicle is equipped with a fuel preheat-
ing system. This improves the flow properties
of the diesel by approximately 46 ‡ (8 †).
ULTRA-LOW SULFUR DIESEL can be used
without risk of malfunction down to an out-
side temperature of approximately 14 ‡
(00F810 †).
Fuel additives
! Do not add gasoline or kerosene to diesel
fuel to improve its flow characteristics.
Gasoline or kerosene impairs the lubricat-
ing properties of the diesel fuel. This can
result in damage to the fuel injection sys-
tem, for example.
Information on fuel consumption H
Environmental note
CO 2(carbon dioxide) is the gas which scien-
tists believe to be principally responsible for
global warming (the greenhouse effect). Your
vehicle's CO 2emissions are directly related to
fuel consumption and therefore depend on:
R efficient use of the fuel by the engine
R driving style
R other non-technical factors, such as envi-
ronmental influences, road conditions or
traffic flow
You can minimize your vehicle's CO 2emis-
sions by driving carefully and having it serv-
iced regularly.
i Only for certain countries: the respective
current consumption and emission values
of your vehicle can be found in the COC
papers (EC CERTIFICATE OF CONFORM- Service products and capacities
323Technical data 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
Engine oil
General notes !
The bottles of the various engine oil types
are marked with ACEA (Association des
Constructeurs Européens d'Automobiles)
and/or API (American Petroleum Institute)
classifications. Only use approved engine
oils that conform to the following MB Spec-
ifications for Service Products and the pre-
scribed ACEA and/or API classifications.
Using engine oils of another quality is not
permitted and may invalidate the New Vehi-
cle Limited Warranty.
The use of other, non-approved engine oils
for diesel engines can cause damage to the
diesel particle filter (DPF).
Use only engine oils that have been approved
for your vehicle according to the MB Specifi-
cations for Service Products.
The MB Specifications for Service Products
are valid for your vehicle 16
R 228.51
R 229.31
R 229.51
These are high quality engine oils which have
a positive effect on:
R engine wear
R fuel consumption
R exhaust gas emissions
Multi-grade engine oils of the prescribed SAE
class (viscosity) may be used all year round,
taking the outside temperatures into
account.
Engine oil viscosity !
If the SAE viscosity class of the engine oil
used does not cover the outside tempera-
ture range in which you are operating the
vehicle, it must be changed in good time, in
particular before the cold season commen-
ces. Using an engine oil that does not have adequate temperature characteristics can
lead to engine damage.
The temperature range information of the
SAE classification always refers to that of
fresh oil. The temperature characteristics
of the engine oil may deteriorate signifi-
cantly due to aging in use, especially at low
outside temperatures.
We recommend that you change the engine
oil before the cold season commences. Use
an approved engine oil of the specified SAE
class. Engine oil SAE classification
Viscosity indicates the flow characteristics of
a fluid. If an engine oil has a high viscosity,
this means that it is thick; a low viscosity
means that it is thin.
Depending on the respective outside temper-
atures, select an engine oil according to SAE
classification (viscosity). The table displays
the SAE classification to be used. The low
temperature characteristics of engine oils
can noticeably deteriorate during operation,
e.g. from aging, soot and fuel accretion. For
this reason, regular oil changes using an
approved engine oil from the suitable SAE
classification are urgently recommended.
Additives !
Do not use any additives in the engine oil.
This could damage the engine.
16 If the quality grade is not available for diesel, you may also add engine oils meeting the requirements in MB
Sheet No. 228.5, 229.3 or 229.5. The topping-up quantity is then limited to a maximum of 1 qt (1 l). 326
Service products and capacitiesTechnical data