KEYLESS-GO
Generalnotes
Vehicles wit hKEYLESS-GO are equipped wit h a
SmartKey featurin gan integrate dKEYLESS-GO
function and adetachable Start/Sto pbutton.
A chec kwhic hperiodically establishes aradi o
connection between th evehicl eand th eSmart -
Key determine swhether avalid SmartKey is in
th evehicle. This occurs, for example, when
starting th eengine.
Whe nyou insert th eStart/Sto pbutto nint oth e
ignition lock, th esystem needs approximately
two seconds recognition time. You can then use
th eStart/Sto pbutton.
Pressing th eStart/Sto pbutto nseveral times in
succession corresponds to th edifferen tke y
position sin th eignition lock. This is only th e
cas eif you are no tdepressing th ebrak epedal .
If you depress th ebrak epedal and press th e
Start/Sto pbutton, th eengin estart simmedi-
ately.
To start th evehicl ewithout actively usin gth e
SmartKey:
Rth eStart/Sto pbutto nmus tbe inserted in th e
ignition lock.
Rth eSmartKey mus tbe in th evehicle.
Rth evehicl emus tno tbe locke dwit hth e
SmartKey or KEYLESS-GO (Ypage 79).
Do no tkeep th eSmartKey:
Rwit helectronic devices, e.g. amobile phone
o
r another SmartKey.
Rwit hmetallic objects ,e.g. coins or metal foil.
Rinside metallic objects ,e.g. ametal case.
This can impair th efunctionalit yof th eKEY-
LESS-GO key.
Do no tkeep th eKEYLESS-GO ke yin th etem-
perature-controlled cup holder (
Ypage 340).
Otherwise ,th eKEYLESS-GO ke ywill no tbe rec -
ognized.
If you loc kth evehicl ewit hth eSmartKey' s
remot econtrol or wit hKEYLESS-GO ,after a
short time:
Ryou will no tbe able to switch on th eignition
wit hth eStart/Sto pbutton.
Ryou will no tbe able to start th eengin ewit hth e
Start/Sto pbutto nuntil th evehicl eis
unlocke dagain . If you loc
kth evehicl ecentrally usin gth ebutto n
on th efron tdoor (
Ypage 85) ,you can continu e
to start th eengin ewit hth eStart/Sto pbutton.
The engin ecan be switched off while th evehicl e
is in motion by pressing and holding th eStart /
Stop butto nfor three seconds. This function
operate sindependentl yof th eECO start/sto p
automatic engin eswitch-off function .
Key positions wit hKEYLESS-G O
:Start/Stopbutto n
;Ignition loc k
As soo nas th eignition is switched on ,all th e
indicator lamp sin th einstrumen tcluste rligh t
up. Further information on situation swher ean
indicator lamp either fail sto go out after starting
th eengin eor lights up while drivin g
(
Ypage 317).
If Start/Sto pbutto n: has no tyet been
pressed, this corresponds to th eke ybein g
remove dfrom th eignition .
XTo switch on th epower supply :press
Start/Sto pbutto n: once .
The powe rsupply is switched on .You can no w
activat eth ewindshield wipers, for example.
The powe rsupply is switched off again if:
Rth edriver's door is opened and
Ryou press Start/Sto pbutto n: twice when in
this position
XTo switch on th eignition: press Start/Sto p
butto n: twice .
The ignition is switched on .
If you press Start/Sto pbutto n: once when
in this position ,th eignition is switched off
again .
146Driving
Driving and parking
Problems with the transmission
ProblemPossible causes/consequences andMSolutions
The transmission has
problems shifting gear.The transmission is losing oil.
XHave the transmission checked at a qualified specialist workshop
immediately.
7G-TRONIC:
The acceleration ability
is deteriorating.
The transmission no lon-
ger changes gear.The transmission is in emergency mode.
It is only possible to shift intosecondgear and reverse gear.
XStop the vehicle.
XShift the transmission to position P.
XSwitch off the engine.
XWait at least ten seconds before restarting the engine.
XShift the transmission to positionDor R.
If D is selected, the transmission shifts into secondgear; ifRis
selected, the transmission shifts into reverse gear.
XHave the transmission checked at a qualified specialist workshop
immediately.
9G-TRONIC:
The acceleration ability
is deteriorating.
The transmission no lon-
ger changes gear.The transmission is in emergency mode.
It is only partly possible to engage the gears or the transmission is in
position N.
XStop the vehicle.
XShift the transmission to position P.
XSwitch off the engine.
XWait at least ten seconds before restarting the engine.
XShift the transmission to positionDor R.
XHave the transmission checked at a qualified specialist workshop
immediately.
Problems with PLUG-IN HYBRID operation (Ypage 255).
Transfer case
This section is only valid for vehicles with 4-
wheel drive (4MATIC). Power is always trans-
mitted to both axles.
!Performance tests may only be carried out
on a 2-axle dynamometer. The brake system
or transfer case could otherwise be damaged. Contact a qualified specialist workshop for a
performance test.
!Because ESP®is an automatic system, the
engine and ignition must be switched off
(SmartKey in position 0or 1or Start/Stop
button in position 0or 1) when the electric
parking brake is being tested on a brake dyna-
mometer (maximum 10 seconds). Braking triggered automatically by ESP
®may
seriously damage the brake system.
!Vehicles with 4MATIC must not be towed
with either the front or the rear axle raised, as
doing so will damage the transmission.
Refueling
Important safety notes
GWARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and explo-
sion.
162Refueling
Driving and parking
GWARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system. There is a risk of fire.
When driving off road or on unpaved roads,
check the vehicle's underside regularly. In
particular, remove parts of plants or other
flammable materials which have become
trapped. In the case of damage, contact a
qualified specialist workshop.
GWARNING
If the vehicle level is high, the vehicle center of gravity is raised. This could cause the vehicle
to tip over more easily on uphill or downhill
gradients. There is a risk of an accident.
Select the lowest possible vehicle level.
!There is a risk of damage to the vehicle if:
Rthe vehicle becomes stuck, e.g. on a high
curb or an unpaved road
Ryou drive too fast over an obstacle, e.g. a
curb or a hole in the road
Ra heavy object strikes the undercarriage or
parts of the chassis
In situations like this, the body, the undercar-
riage, chassis parts, wheels or tires could be
damaged without the damage being visible.
Components damaged in this way can unex-
pectedly fail or, in the case of an accident, no
longer withstand the strain they are designed to.
If the underbody paneling is damaged, com-
bustible materials such as leaves, grass or
twigs can gather between the underbody and
the underbody paneling. If these materials
come in contact with hot parts of the exhaust
system, they can catch fire.
In such situations, have the vehicle checked
and repaired immediately at a qualified spe-
cialist workshop. If on continuing your jour-
ney you notice that driving safety is impaired,
pull over and stop the vehicle immediately,
paying attention to road and traffic condi-
tions. In such cases, consult a qualified spe-
cialist workshop.
When driving off-road, substances such as sand,
mud and water or water mixed with oil may get into the brakes. This could result in a reduced
braking effect or in total brake failure and also in
increased wear and tear. The braking charac-
teristics change depending on the material
ingressing the brakes. Clean the brakes after
driving off-road. If
you detect a reduced bra
king
effect or grinding noises, have the brake system checked in a qualified specialist workshop as
soon as possible. Adapt your driving style to the
different braking characteristics.
Driving off-road increases the likelihood of dam-
age to the vehicle, which, in turn, can lead to
failure of the mechanical assembly or systems.
Adapt your driving style to suit the terrain con-
ditions. Drive carefully. Have damage to the
vehicle rectified immediately at a qualified spe-
cialist workshop.
Do not switch to transmission position Nwhen
driving off-road. If you try to brake the vehicle
using the service brake, you could lose control
of the vehicle. If the gradient is too steep for your
vehicle, drive back down in reverse gear.
General notes
Read this section carefully before driving your
vehicle off-road. Practice by driving over more
gentle off-road terrain first.
Familiarize yourself with the characteristics of
your vehicle and the gear shift operation before driving through difficult terrain.
The following driving systems are specially
adapted to off-road driving:
Rthe Offroad drive program (vehicles without
Off-Road Engineering package)
(
Ypage 237)
ROffroad andOffroad Plus drive programs
(vehicles with Off-Road Engineering pack-
age) . (
Ypage 237)
RLOW RANGE off-road gear (vehicles with the
Offroad Engineering package) (Ypage 239)
RDifferential lock (vehicles with the Off-Road
Engineering package) (Ypage 238)
ROff-road ABS (Ypage 67)
ROff-road 4ETS (Ypage 72)
ROff-road ESP®(Ypage 73)
RAIRMATIC package (vehicle level)
(Ypage 205)
RDSR (Downhill Speed Regulation)
(Ypage 236)
Driving tips187
Driving and parking
Z
Observe the following notes:
RStop the vehicle before starting to drive along
an off-road route. If necessary, select the off-
road program (
Ypage 237) or shift to the
LOW RANGE off-road gear (Ypage 239).
RSelect a vehicle level that is suitable for the
terrain. To avoid damaging the vehicle, make
sure there is always sufficient ground clear-
ance.
RCheck that items of luggage and loads are
stowed safely and are well secured
(
Ypage 333).
RAlways keep the engine running and in gear
when driving on a downhill gradient. Activate
DSR (
Ypage 236).
RAlways keep the engine running and in gear
when driving on a slope.
RAdapt your speed to the terrain. The rougher,
steeper or more ruts on the terrain, the slower
your speed should be.
RDo not jump with the vehicle as this will inter- rupt the vehicle's propulsion.
RDrive with extreme care on unfamiliar off-road
routes where visibility is poor. For safety rea-
sons, get out of the vehicle first and survey
the off-road route.
RLook out for obstacles, such as rocks, holes,
tree stumps and furrows.
RAlways keep the doors, the tailgate, the side
windows and the sliding sunroof closed whilethe vehicle is in motion.
RDo not shift the automatic transmission to
transmission position N.
RObserve the notes on off-road fording
(Ypage 185).
iDo not use the HOLD function when driving
off-road, on steep uphill or downhill gradients
or on slippery or loose surfaces. The HOLD
function cannot hold the vehicle on such sur-
faces.
Checklist before driving off-road
!If the engine oil warning lamp lights up while
the vehicle is in motion, stop the vehicle in a
safe place as soon as possible. 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.
XEngine 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.
XDEF tank (BlueTEC vehicles): check the
level and add if necessary (Ypage 167).
XTire-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.
XWheels and tires: check the tire tread depth
and tire pressure.
XCheck for damage and remove any foreign
objects, e.g. small stones, from the wheels/
tires.
XReplace any missing valve caps.
XReplace dented or damaged wheels.
XRims: dented or bent rims can result in a loss
of tire pressure and damage the tire bead.
Before driving off-road, check the wheels and replace them if necessary.
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.
Driving over rough terrain places greater
demands on your vehicle than driving on normal
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.
XIf the Offroad orOffroad Plus drive program
is selected: select the Individual,Sport,
Comfort orSlippery drive program
(
Ypage 152).
XDeactivate the LOW RANGE off-road gear
(Ypage 239).
XDeactivate DSR (Ypage 236).
XLower the vehicle level again to a level suita-
ble to the road conditions, e.g. to the normal
level.
XClean the headlamps and rear lights and
check for damage.
XClean the front and rear license plates.
XClean the wheels and tires with a water jet
and remove any foreign objects.
188Driving tips
Driving and parking
You can view the current settings of the off-road
programs in theON&OFFROADmenu.
RVehicles with the Off-Road Engineering pack-
age (Ypage 237)
RVehicles without the Offroad Engineering
package (Ypage 237)
AMG menu (Mercedes-AMG vehicles)
WARMUP
:Digital speedometer
;Gear indicator
=Upshift indicator
?Engine oil temperature
ACoolant temperature
BTransmission fluid temperature
XPress the =or; button on the steering
wheel to select the AMGmenu.
Upshift indicator: upshift indicatorUp=
indicates that the engine has reached the
overrevving range when in the manual drive
program.
Engine/transmission oil temperature:
when the engine and transmission are at nor- mal operating temperature, oil tempera-
ture ?and Bare displayed in white in the
multifunction display.
If the multifunction display shows oil temper-
ature ?orB in blue, the engine or the
transmission are not yet at normal operating
temperature. Avoid driving at full engine out-
put during this time.
SETUP
:Engine mode (Comfort/ Sport/Sport +)
;Suspension setting Comfort/Sport/
Sport+
=Transmission position D/M
?ESP®mode (ON/OFF)
SETUP displays the following information/func- tions:
Rthe digital speedometer
Rthe gear indicator
Rthe engine mode
Rthe suspension mode
Rthe transmission position
Rthe ESP®(Electronic Stability Program) mode
XPress the =or; button on the steering
wheel to select the AMGmenu.
XPress the9button repeatedly until SETUP
is displayed.
RACETIMER
Displaying and starting RACETIMER
The RACETIMER is only intended for use on a
closed race circuit. Do not use the function on
public roads.
:Lap
;RACETIMER
Menus and submenus277
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
#
StopVehicl eSeeOperator' sManual
The battery is no longer bein gcharged and th ebattery charg elevel is
to olow.
A warning tone also sounds.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 178).
XObserv eth einstruction sin th e# See Operator' sManualdisplay message .
XConsultaqualified specialist workshop .
4
CheckEngineOilAtNextRefueling
The engin eoil level has dropped to th eminimum level.
A warning tone also sounds.
!Avoid lon gjourneys wit hto olittl eengin eoil. The engin ewill oth-
erwise be damaged.
XChec kth eoil level when next refueling, at th elatest (Ypage 357).
XIf necessary, add engin eoil (Ypage 358).
If th eengin eoil need stoppin gup mor eoften:
XContac t aqualified specialist workshop and hav eth eengin e
checked.
Information on approve dengin eoils can be obtained from any quali-
fie dspecialist workshop or on th eInternet at http://bevo.mercedes -
benz.com.
4
Check Engine OilLevel (Ad d 1quart)
Mercedes-AMG vehicles: th eengin eoil level is to olow.
!Avoid lon gjourneys wit hto olittl eengin eoil. The engin ewill oth-
erwise be damaged.
XChec kth eoil level when next refueling, at th elatest (Ypage 357).
XIf necessary, add engin eoil (Ypage 358).
If th eengin eoil need stoppin gup mor eoften:
XContac t aqualified specialist workshop and hav eth eengin e
checked.
Information on approve dengin eoils can be obtained from any quali-
fie dspecialist workshop or on th eInternet at http://bevo.mercedes -
benz.com.
4
Engine Oil LevelLow Sto pVehicl eTurnEngine Off
Mercedes-AMG vehicles: th eengin eoil level is to olow.
There is aris kof engin edamage.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 178).
XCheckth eengin eoil level (Ypage 357).
XIf necessary, add engin eoil (Ypage 358).
8
Fue lLevel Low
The fuel level has dropped int oth ereserv erange.
XRefue lat th eneares tgas station .
Display messages297
On-board computer and displays
Z
!Make sure that the windshield wipers are
not folded away from the windshield. You
could otherwise damage the windshield wip-
ers or the hood.
XMake sure that the windshield wipers are
turned off.
XPull release lever :on the hood.
The hood is released.
XReach into the gap, pull hood catch handle ;
up and lift the hood.
If you lift the hood by approximately 15 in
(40 cm), the hood is opened and held open
automatically by the gas-filled strut.
Closing the hood
XLower the hood and let it fall from a height of
approximately 8 in (20 cm).
XCheck that the hood has engaged properly.
If the hood can be raised slightly, it is not
properly engaged. Open it again and close it
with a little more force.
Radiator
Vehicles with a diesel engine: do not cover
the radiator, for example with a winter front or bug cover. The readings of the on-board-diag-
nostic system may otherwise be inaccurate.
Some of these readings are required by law and
must be accurate at all times.
Engine oil
General notes
Depending on your driving style, the vehicle
consumes up to 0.9 US qt (0.8 liters) of oil per
600 miles (1,000 km). The oil consumption may
be higher than this when the vehicle is new or if
you frequently drive at high engine speeds.
Depending on the engine, the oil dipstick may be
in a different location.
When checking the oil level:
Rpark the vehicle on a level surface.
Rthe engine should be switched off for approx-
imately five minutes if the engine is at normal
operating temperature.
Rif the engine is not at normal operating tem-
perature, e.g. if the engine was only started
briefly, wait about 30 minutes before carrying
out the measurement.
Checking the oil level using the oil dip-
stick
GWARNING
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.
Engine compartment357
Maintenance and care
Z
Example: vehicles with a gasoline engine
Example: vehicles with a diesel engine
XPull dipstick:out of the dipstick tube.
XWipe off oil dipstick :.
XSlowly slide oil dipstick :into the guide tube
to the stop, and take it out again.
If the level is between MIN mark =and MAX
mark ;, the oil level is correct.
XIf the oil level has dropped to MIN mark =or
below, add 1.1 US qt (1.0 liter) engine oil.
Adding engine oil
GWARNING
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.
GWARNING
If engine oil comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Make sure that engine oil is not spilled next to
the filler neck. Let the engine cool down and
thoroughly clean the engine oil off the com-
ponents before starting the engine.
HEnvironmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful to
the environment.
!Only use engine oils and oil filters that have
been approved for vehicles with a service sys-
tem. You can obtain a list of the engine oils
and oil filters tested and approved in accord- ance with the Mercedes-Benz Specifications
for Service Products at any Mercedes-Benz
Service center.
Damage to the engine or exhaust system is
caused by the following:
Rusing engine oils and oil filters that have notbeen specifically approved for the service
system
Rreplacing engine oil and oil filters after the
interval for replacement specified by the
service system has been exceeded
Rusing engine oil additives.
!Do not add too much oil. adding too much
engine oil can result in damage to the engine
or to the catalytic converter. Have excess
engine oil siphoned off.
Example: engine oil cap
358Engine compartment
Maintenance and care