
Roadside Assistance butto
n ..........354
Search & Send ............................... 357
Self-test ......................................... 353
Speed alert ................................... .360
System .......................................... 353
Triggering the vehicle alarm ........... 360
Vehicle remote malfunction diag-
nosis .............................................. 359
Vehicle remote unlocking .............. 358
Telephone
Accepting a call ............................ .274
Display message ............................ 316
Menu (on-board computer) ............ 273
Number from the phone book ....... .274
Redialing ........................................ 274
Rejecting/ending a call ................. 274
Telescopic rod (EASY-PACK load-
securing kit) ....................................... 343
Temperature Coolant .......................................... 266
Coolant (on-board computer) ......... 281
Engine oil (on-board computer) ...... 281
Outside temperature ..................... .267
Setting (climate control) ................ 147
Theft deterrent systems
ATA (Anti-Theft Alarm system) ......... 77
Immobilizer ...................................... 77
Through-loading ................................ 337
Time see separate operating instructions
Timing (RACETIMER) ......................... 282
TIREFIT kit .......................................... 384
Tire pressure Calling up (on-board computer) ..... 408
Checking manually ........................ 407
Display message ............................ 312
Important safety notes .................. 408
Maximum ....................................... 406
Notes ............................................. 405
Not reached (TIREFIT) .................... 386
Reached (TIREFIT) .......................... 386
Recommended ............................... 404
Tire pressure loss warning sys-
tem
General notes ................................ 407
Important safety notes .................. 407
Restarting ...................................... 408 Tire pressure monitor
Checking the tire pressure elec-
tronically ........................................ 410
Function/notes ............................ .408
General notes ................................ 408
Important safety notes .................. 409
Radio type approval for the tire
pressure monitor ........................... 411
Restarting ...................................... 411
Warning lamp ................................. 331
Warning message .......................... 410
Tires
Aspect ratio (definition) ................. 422
Average weight of the vehicle
occupants (definition) .................... 421
Bar (definition) ............................... 420
Changing a wheel .......................... 423
Characteristics .............................. 420
Checking ........................................ 401
Curb weight (definition) ................. 422
Definition of terms ......................... 420
Direction of rotatio n...................... 423
Display message ............................ 312
Distribution of the vehicle occu-
pants (definition) ............................ 423
DOT, Tire Identification Number
(TIN) ............................................... 420
DOT (Department of Transporta-
tion) (definition) ............................. 421
GAWR (Gross Axle Weight Rating)
(definition) ..................................... 421
GTW (Gross Trailer Weight) (defi-
nition) ............................................ 421
GVW (Gross Vehicle Weight) (def-
inition) ........................................... 421
GVWR (Gross Vehicle Weight Rat-
ing) (definition) .............................. 421
Important safety notes .................. 400
Increased vehicle weight due to
optional equipment (definition) ...... 421
Kilopascal (kPa) (definition) ........... 421
Labeling (overview) ........................ 417
Load bearing index (definition) ...... 422
Load index ..................................... 419
Load index (definition) ................... 421
M+S tire s....................................... 402
Maximum loaded vehicle weight
(definition) ..................................... 421 20
Index 

Check the engine oil level. The engine oil
warning lamp warning must not be ignored. Continuing the journey while the symbol is
displayed could lead to engine damage.
X Engine oil level: check the engine oil level
and add oil if necessary.
When driving on steep gradients, the
engine oil level must be sufficiently high to
ensure a correct oil supply in the vehicle.
X DEF tank (BlueTEC vehicles): check the
level and top up if necessary (Y page 180).
X Tire-changing tool kit: check that the jack
is working and make sure you have the lug
wrench, a robust tow cable and a folding
spade in the vehicle.
X Wheels and tires: check the tire tread
depth and tire pressure.
X Check for damage and remove any foreign
objects, e.g. small stones, from the
wheels/tires.
X Replace any missing valve caps.
X Replace dented or damaged wheels.
X Rims: dented or bent rims can result in a
loss of tire pressure and damage the tire
bead. Therefore, check your rims before
driving off-road and replace them as
required.
Checklist after driving off-road !
If you detect damage to the vehicle after
driving off-road, have the vehicle checked
immediately at a qualified specialist work-
shop.
X Vehicles with the ON&OFFROAD pack-
age: activate the on-road program
(Y page 251).
X Deactivate the LOW RANGE off-road gear
(Y page 253).
X Deactivate DSR (Y page 250).
X Vehicles with the AIRMATIC package:
lower the vehicle to a ride height suitable
for the road conditions, e.g. to the high-
way/high-speed level. X
Clean the headlamps and rear lights and
check for damage.
X Clean the front and rear license plates.
X Clean the wheels/tires with a water jet and
remove any foreign objects.
X Clean the wheels, wheel housings and the
vehicle underside with a water jet; check
for any foreign objects and damage.
X Check whether twigs or other parts of
plants have become trapped. These
increase the risk of fire and can damage
fuel pipes, brake hoses or the rubber bel-
lows of the axle joints and propeller shafts.
X After the trip, examine without fail the
entire undercarriage, wheels, tires, brakes,
bodywork structure, steering, chassis and
exhaust system for damage.
X After driving for extended periods across
sand, mud, gravel, water or in similarly dirty
conditions, have the brake discs, wheels,
brake pads/linings and axle joints checked
and cleaned.
X If you detect strong vibrations after off-road
travel, check for foreign objects in the
wheels and drive train and remove them if
necessary. Foreign objects can disturb the
balance and cause vibrations.
Driving over rough terrain places greater
demands on your vehicle than driving on nor-
mal roads. After driving off-road, check the
vehicle. This allows you to detect damage
promptly and reduce the risk of an accident to
yourself and other road users.
Driving on sand Observe the following rules when driving on
sand:
R Vehicles with the ON&OFFROAD pack-
age: select off-road program 1
(Y page 251).
R Vehicles with the AIRMATIC package:
select a raised vehicle level.
R Avoid high engine speeds. Driving tips
193Driving and pa rking Z 

i
If the anti-theft alarm system is activated
for longer than 30 seconds, the Mercedes-
Benz Customer Assistance Center is auto-
matically notified.
Vehicle remote malfunction diagnosis With the vehicle remote malfunction diagno-
sis (Vehicle Health Check), the Customer
Assistance center can provide improved sup- port for problems with your vehicle. During anexisting call, vehicle data is transferred to the
Customer Assistance center. The customer
service representative can use the received
data to decide what kind of assistance is
required. You are then, for example, guided to the nearest authorized Mercedes-Benz Cen-
ter or a recovery vehicle is called.
If vehicle data needs to be transferred during
an MB Info call or a Roadside Assistance call, this is initiated by the Customer Assistance
center. You will see the Roadside Assis‐
Roadside Assis‐
tance Connected tance Connected message in the COMAND
display. If the vehicle remote malfunction
diagnosis can be started, the Request for
Request for
vehicle diagnosis received. Start
vehicle diagnosis received. Start
vehicle diagnosis?
vehicle diagnosis? message appears in
the display.
X Confirm the message with Yes
Yes.
X When the Vehicle Diagnosis Please
Vehicle Diagnosis Please
start ignition
start ignition message appears, turn
the SmartKey to position 2in the ignition
lock (Y page 157).
X When the Please
Please follow
followthe
theinstruc‐
instruc‐
tions received by phone and move
tions received by phone and move
your vehicle to a safe position. your vehicle to a safe position.
message appears, follow the customer ser-
vice representative's instructions.
The message in the display disappears.
If you select Cancel Cancel, the vehicle remote
malfunction diagnosis is canceled com-
pletely.
The vehicle operating state check begins.
You will see the Vehicle diagnosis Vehicle diagnosis
activated.
activated. message. When the diagnosis is completed, the
Send Send
vehicle diagnostics data//(Voice vehicle diagnostics data//(Voice
connection may be//interrupted dur‐ connection may be//interrupted dur‐
ing ing data
data transfer)
transfer) message appears. The
vehicle data can now be sent to the Customer Assistance center.
X Press OK
OKto confirm the message.
The voice connection with the Customer
Assistance center is terminated.
You will see the Vehicle Diagnosis: Vehicle Diagnosis:
Transferring data... Transferring data... message.
The vehicle data is sent to the Customer
Assistance center.
Depending on what the customer service rep-
resentative agreed with you, the voice con-
nection is re-established after the transfer is
complete. If necessary, you will be contacted at a later time by another means, e.g. by e-
mail or phone.
Further functions of the vehicle remote mal-
function diagnosis include, for example:
R transfer of service data to the Customer
Assistance center. If a service is overdue,
the COMAND display shows a message
about various special offers at your work-
shop.
R monthly status information e-mail on oil
level, air pressure, maintenance, brakes,
etc. If applicable, you will receive informa-
tion on special offers in the e-mail.
USA only: this information can also be
called up under "Owners Online" at http://
www.mbusa.com.
Information on the data stored in the vehicle
(Y page 30).
Information on Roadside Assistance
(Y page 26).
Downloading routes Downloading routes allows you to transfer
and save predefined routes in the navigation
system. To do this, an SD memory card must
be inserted into the COMAND system. If no
SD memory card is inserted, you must insert Features
359Stowage and features Z 

Example: engine oil cap
X Turn cap 0043counter-clockwise and remove
it.
X Add engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick, add 1.1 US qt (1.0 l)of
engine oil.
X Replace cap 0043on the filler neck and turn
clockwise.
Ensure that the cap locks into place
securely.
X Check the oil level again with the oil dip-
stick (Y page 367).
Further information on engine oil
(Y page 452). Additional service products
Checking coolant level G
WARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following. G
WARNING
The engine cooling system is pressurized, par- ticularly when the engine is warm. When
opening the cap, you could be scalded by hotcoolant spraying out. There is a risk of injury. Let the engine cool down before opening the
cap. Wear eye and hand protection when
opening the cap. Open the cap slowly half a
turn to allow pressure to escape.
X
Park the vehicle on a level surface.
Only check the coolant level when the vehi-
cle is on a level surface and the engine has
cooled down.
X Turn the SmartKey to position 2in the igni-
tion lock (Y page 157).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page 158).
X Check the coolant temperature gauge in
the multifunction display.
The coolant temperature must be below
158 ‡ (70 †).
X Turn the SmartKey to position
0(Y page 157) in the ignition lock.
X Slowly turn cap 0043half a turn counter-
clockwise to allow excess pressure to
escape.
X Turn cap 0043further counter-clockwise and
remove it.
If the coolant is at the level of marker bar 0087
in the filler neck when cold, there is enough coolant in coolant expansion tank 0044.
If the coolant level is approximately 0.6 in
(1.5 cm) above marker bar 0087in the filler
neck when warm, there is enough coolant
in expansion tank 0044.
X If necessary, add coolant that has been tes-
ted and approved by Mercedes-Benz.
X Replace cap 0043and turn it clockwise as far
as it will go. Engine compartment
369Maintenance and care Z 

!
Please note the care instructions in the
trailer coupling manufacturer's operating
instructions. The ball coupling must be cleaned if it
becomes dirty or corroded.
X Remove rust on the ball of the ball coupling,
e.g. with a wire brush.
X Remove dirt with a clean, lint-free cloth or a
brush.
X After cleaning, lightly oil or grease ball cou-
pling 0043.
X Check that the vehicle's trailer tow hitch is
working properly.
i You can also have the maintenance work
on the ball coupling and the trailer tow hitch
carried out by a qualified specialist work-
shop. Interior care
Cleaning the display !
For cleaning, do not use any of the fol-
lowing:
R alcohol-based thinner or gasoline
R abrasive cleaning agents
R commercially-available household clean-
ing agents
These may damage the display surface. Do not put pressure on the display surface
when cleaning. This could lead to irrepara-
ble damage to the display. X
Before cleaning the display, make sure that
it is switched off and has cooled down.
X Clean the display surface using a commer-
cially available microfiber cloth and
TFT/LCD display cleaner.
X Dry the display surface using a dry micro-
fiber cloth.
Cleaning Night View Assist Plus !
Never clean the camera lens. When clean-
ing the field of vision of the driving systems, make sure that you do not spray glass
cleaner on the camera lens. If the camera
lens is dirty, visit a qualified specialist work-
shop. X
Fold down the camera cover by recess 0043. X
Use a soft cloth to clean the windshield in
front of camera 0044. Care
377Maintenance and care Z 

X
Press on/off switch 0087on the tire inflation
compressor to I.
The tire inflation compressor is switched
on. The tire is inflated.
i First, tire sealant is pumped into the tire.
The pressure can briefly rise to approx-
imately 500 kPa (5 bar/73 psi).
Do not switch off the tire inflation com-
pressor during this phase.
X Allow the tire inflation compressor to run
for five minutes. The tire should then have
attained a pressure of at least 180 kPa
(1.8 bar/26 psi).
If a tire pressure of 180 kPa (1.8 bar/26 psi) has been attained after five minutes:
(Y page 386).
If a tire pressure of 180 kPa (1.8 bar/26 psi) has not been attained after five minutes:
(Y page 386).
i If tire sealant leaks out, allow it to dry. It
can then be removed like a layer of film.
If your clothes are soiled with tire sealant,
have them cleaned with perchloroethylene at a dry cleaner as soon as possible.
Tire pressure not reached If a pressure of 180 kPa (1.8 bar/26 psi) has
not been attained after five minutes:
X Switch off the tire inflation compressor.
X Unscrew the filler hose from the valve of
the faulty tire.
X Very slowly drive forwards or reverse
approximately 30 ft (10 m).
X Pump up the tire again.
After a maximum of five minutes the tire
pressure must be at least 180 kPa (1.8 bar/ 26 psi). G
WARNING
If the required tire pressure is not reached
after the specified time, the tire is too badly
damaged. The tire sealant cannot repair the
tire in this instance. Damaged tires and a tire pressure that is too low can significantly impair the vehicle's braking and driving char-
acteristics. There is a risk of accident.
Do not continue driving. Contact a qualified
specialist workshop.
Tire pressure reached G
WARNING
A tire temporarily sealed with tire sealant
impairs the driving characteristics and is not
suitable for higher speeds. There is a risk of
accident.
You should therefore adapt your driving style
accordingly and drive carefully. Do not exceed the specified maximum speed with a tire that
has been repaired using tire sealant.
! Residue from the tire sealant may come
out of the filler hose after use. This could
cause stains.
Therefore, place the filler hose in the plastic
bag which contained the TIREFIT kit. H
Environmental note
Have the used tire sealant bottle disposed of
professionally, e.g. at a qualified specialist
workshop.
If a tire pressure of 180 kPa (1.8 bar/26 psi) has been attained after five minutes:
X Switch off the tire inflation compressor.
X Unscrew the filler hose from the valve of
the faulty tire.
X Stow the tire sealant bottle and the tire
inflation compressor.
X Pull away immediately.
The maximum speed for a tire sealed with
tire sealant is 50 mph (80 km/h). The upper
part of the TIREFIT sticker must be affixed
to the instrument cluster in the driver's
field of vision.
X Stop after driving for approximately ten
minutes and check the tire pressure with
the tire inflation compressor.
The tire pressure must now be at least
130 kPa (1.3 bar/19 psi). 386
Flat tireBreakdown assistance 

the tire. This specifies the load-bearing capa-
city more precisely.
Curb weight
The weight of a vehicle with standard equip-
ment including the maximum capacity of fuel,
oil and coolant. It also includes the air-condi- tioning system and optional equipment if
these are installed in the vehicle, but does notinclude passengers or luggage.
Maximum load rating
The maximum tire load is the maximum per-
missible weight in kilograms or lbs for which a
tire is approved.
Maximum permissible tire pressure
Maximum permissible tire pressure for one
tire.
Maximum load on one tire
Maximum load on one tire. This is calculated
by dividing the maximum axle load of one axle
by two.
PSI (pounds per square inch)
A standard unit of measure for tire pressure.
Aspect ratio
Relationship between tire height and tire
width in percent.
Tire pressure
This is pressure inside the tire applying an
outward force to each square inch of the tire's surface. The tire pressure is specified in
pounds per square inch (psi), in kilopascal
(kPa) or in bar. The tire pressure should only
be corrected when the tires are cold.
Cold tire pressure
The tires are cold:
R if the vehicle has been parked without
direct sunlight on the tires for at least three
hours and
R if the vehicle has been driven for less than
1 mile (1.6 km). Tread
The part of the tire that comes into contact
with the road.
Bead
The tire bead ensures that the tire sits
securely on the wheel. There are several steel
wires in the bead to prevent the tire from
coming loose from the wheel rim.
Sidewall
The part of the tire between the tread and the bead.
Weight of optional extras
The combined weight of those optional extras
that weigh more than the replaced standard
parts and more than 2.3 kilograms (5 lbs).
These optional extras, such as high-perform-
ance brakes, level control, a roof rack or a
high-performance battery, are not included in the curb weight and the weight of the acces-
sories.
TIN (Tire Identification Number)
This is a unique identifier which can be used
by a tire manufacturer to identify tires, for
example for a product recall, and thus identify
the purchasers. The TIN is made up of the
manufacturer's identity code, tire size, tire
type code and the manufacturing date.
Load bearing index
The load bearing index (also load index) is a
code that contains the maximum load bearing capacity of a tire.
Traction
Traction is the result of friction between the
tires and the road surface.
TWR (Tongue Weight Rating)
The TWR specifies the maximum permissible
weight that the ball coupling of the trailer tow
hitch can support. 422
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