Deactivating theHOL Dfunction
The HOLD function is deactivated automatically
if:
Ryou accelerat eand th etransmissio nis in
position Dor R.
Ryou shift th etransmissio nto position P.
Ryou depress th ebrake peda lagain wit h acer-
tain amount of pressure until :disappears
from th emultifunction display.
Ryou secure th evehicle usin gth eelectric park-
in g brake .
Ryou activat eDISTRONIC PLUS.
iAfte r atime, th eelectric parking brake
secure sth evehicle and relieves th eservic e
brake .
Whe nth eHOLD function is activated, th etrans -
missio nis shifted automatically to position Pif:
Rth edriver's doo ris ope nand th edriver's seat
belt is unfastened.
Rth eengin eis switched off, unless it is auto-
matically switched of fby th eEC Ostart/sto p
function .
The electric parking brake secure sth evehicle
automatically if th eHOLD function is activated
when th evehicle is stationary and :
Rasyste mmalfunction occurs.
Rthepowe rsupply is no tsufficient.
On steep uphill or downhill inclines or if there is
a malfunction ,th etransmissio nmay also be
automatically shifted into position P.
4MATIC
4MATIC ensures that all four wheels are perma-
nently driven.Together wit hES P®and 4ETS, it
improves th etraction of your vehicle wheneve r
a drive whee lspins due to insufficien tgrip.
If you fail to adapt your drivin gstyle, 4MATIC can
neither reduce th eris kof acciden tno roverride
th elaws of physics. 4MATIC canno ttake
accoun tof road, weather and traffic conditions.
4MATIC is only an aid. You are responsible fo r
th edistanc eto th evehicle in front, fo rvehicle
speed, fo rbraking in goo dtime and fo rstayin gin
your lane.
!Never to wthevehicle wit hon eaxl eraised.
Thi smay damage th etransfe rcase. Damag e
of this sor tis no tcovered by th eMercedes -Benz Limited Warranty. Al
lwheels mus t
remain either on th egroun dor be full yraised.
Observ eth einstruction sfo rtowin gth evehi-
cl e wit hall wheels in full contact wit hth e
ground.
!A function or performanc etest should only
be carrie dout on atwo-axl edynamometer.
Before you operat eth evehicle on suc h a
dynamometer, please consult aqualified
workshop .You could otherwise damage th e
drive train or th ebrake system.
iIn wintr ydrivin gconditions, th emaximum
effect of 4MATIC can only be achieved if you
use winte rtires (M+Stire s), wi th snow chains
if necessary.
DSR (Downhill Speed Regulation)
General notes
DSR is an aid to assist you when driving down-
hill. It keeps the speed of travel at the speed
selected on the on-board computer. The steeper
the downhill gradient, the greater the DSR brak-
ing effect on the vehicle. When driving on flat
stretches of road or on an uphill gradient, the
DSR braking effect is minimal or nonexistent.
DSR controls the vehicle’s speed when it is acti-
vated and the transmission is in position D,R or
N. You can drive at a higher or a lower speed
than that set on the on-board computer at any
time by accelerating or braking.
Important safety notes
GWARNING
If the speed driven and the set speed deviate and you activate DSR on a slippery road sur-
face, the wheels may lose traction. There is an
increased danger of skidding and accidents.
Before switching DSR on, please take into
consideration the road surface and the differ- ence between driving speed and the set
speed.
If you fail to adapt your driving style, DSR can
neither reduce the risk of accident nor override the laws of physics. DSR cannot take account of
road, weather and traffic conditions. DSR is only
an aid. You are responsible for the distance to
180Driving system s
Driving an d parking
Tires
Display messagesPossible causes/consequences andMSolutions
CheckTirePressureSoonThe tire pressure loss warning system has detected a significant loss
in pressure.
A warning tone also sounds.
Possible causes:
Ryou have changed the positions of the wheels and tires or installed
new wheels and tires.
Rthe tire pressure in one or more tires has dropped significantly
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed increase.
Rthey may wear excessively and/or unevenly, which may greatly
impair tire traction.
Rthe driving characteristics, as well as steering and braking, may be
greatly impaired.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 156).
XCheck the tires and, if necessary, follow the instructions for a flat
tire (Ypage 315).
XCheck the tire pressures and, if necessary, correct the tire pressure.
XRestart the tire pressure loss warning system when the tire pres-
sure is correct (Ypage 337).
CheckTirePressureThen Restart RunFlat Indicator
The tire pressure loss warning system generated a display message
and has not been restarted since.
XSet the correct tire pressure in all four tires.
XRestart the tire pressure loss warning system (Ypage 337).
Run Flat IndicatorInoperativeThe tire pressure loss warning system is faulty.
XVisit a qualified specialist workshop.
PleaseCorrectTirePressureThe tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
XCheck the tire pressures at the next opportunity (Ypage 337).
XIf necessary, correct the tire pressure.
XRestart the tire pressure monitor (Ypage 340).
Displa y messages259
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
Check TiresThe tire pressurein on eor mor etires has dropped significantly. The
whee lposition is displayed in th emultifunction display.
A warning tone also sounds.
GWARNIN G
Tir epressures that are to olow pos eth efollowin ghazards :
Rthey may burst, especially as th eload and vehicl espeed increase.
Rthey may wear excessivel yand/o runevenly, whic hmay greatl y
impair tire traction .
Rthedrivin gcharacteristics ,as well as steering and braking ,may be
greatl yimpaired.
There is aris kof an accident.
XStop th evehicl ewithout making any sudden steering or braking
maneuvers .Pay attention to th etraffic condition sas you do so.
XSecur eth evehicl eagainst rollin gaway (Ypage 156).
XCheckth etires and ,if necessary, follow th einstruction sfor aflat
tire (Ypage 315).
XChec kth etire pressur e (Ypage 337).
XIf necessary, correc tth etire pressure.
Warnin gTir eMal ‐functionThe tire pressur ein on eor mor etires has dropped suddenly. The whee l
position is shown in th emultifunction display.
GWARNIN G
Drivin gwit h a flat tire poses aris kof th efollowin ghazards :
Raflat tire affects th eabilit yto steer or brak eth evehicle.
Ryou could lose control of th evehicle.
Rcontinued drivin gwit h a flat tire will caus eexcessive heat build-up
and possibl y afire.
There is aris kof an accident.
XStop th evehicl ewithout making any sudden steering or braking
maneuvers .Pay attention to th etraffic condition sas you do so.
XSecur eth evehicl eagainst rollin gaway (Ypage 156).
XCheckth etires and ,if necessary, follow th einstruction sfor aflat
tire (Ypage 315).
TirePress.Monito rCurrently Unavaila‐ble
Becausethere is interferenc efrom astron gsource of radi owaves, no
signals from th etire pressur esensor sare detected. The tire pressur e
monitor is temporarily malfunctioning .
XDrive on.
The tire pressur emonitor restarts automatically as soo nas th e
problem has been resolved.
Tir ePress. Sen ‐sor(s) Missin gThere is no signal from th etire pressur esensor of on eor several
wheels. The pressur eof th eaffecte dtire is no tdisplayed in th emul-
tifunction display.
XHav eth efault ytire pressur esensor replace dat aqualified special -
ist workshop .
260Display messages
On-board computer and displays
Tires
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
hNThe yellow tire pressure monitor warning lamp (pressure loss/malfunction) is lit.
The tire pressure monitor has detected a loss of pressure in at least one of the tires.
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed increase.
Rthey may wear excessively and/or unevenly, which may greatly impair tire trac-
tion.
Rthe driving characteristics, as well as steering and braking, may be greatly
impaired.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking maneuvers. Pay
attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 156).
XObserve the additional display messages in the multifunction display.
XCheck the tires and, if necessary, follow the instructions for a flat tire
(Ypage 315).
XCheck the tire pressure (Ypage 337).
XIf necessary, correct the tire pressure.
hN The yellow tire pressure monitor warning lamp (pressure loss/malfunction)
flashes for approximately one minute and then remains lit.
The tire pressure monitor is faulty.
GWARNING
The system is possibly unable to recognize or register low tire pressure.
There is a risk of an accident.
XObserve the additional display messages in the multifunction display.
XVisit a qualified specialist workshop immediately.
Warning and indicator lamps in the instrument cluster277
On-board computer and displays
Z
Ashtray
Fron t ashtray
!The holder under th eashtray is no theat
resistant .Befor eplacing lit cigarette sin th e
ashtray, mak esur ethat th eashtray is prop-
erl yengaged. Otherwise ,th eholder could be
damaged.
XTo open :slid ecover :to it sforemost posi-
tion .
XFold cover =of th einsert upwards.
XTo remove th einsert: push insert =to th e
lef t?.
Inser t= slides out slightly to th eright .
XLiftinsert =up; and out .
XTo re-install th einsert: placeinsert =into
th eholder and press it down on th eright until
it engages.
XTo close: pull cover :bac kas far as it will go.
Rea r-compa rtment ashtray
!Close th eashtray when it is no tin use and
before you fol dth erear seat sforward .You
can otherwise damag eth eashtray.
Vehicles without aRear Seat Entertainmen tSys -
te m hav ean ashtray in th ecenter console in th e
rear compartment.
XTo open :briefl ypress cover ;at th etop.
The ashtray opens.
XTo remove th einsert: push int orecess =
from th eright .
Ashtray insert :slides out slightly to th e
right .
XLiftinsert :up and out .
XTo re-install th einsert: placeinsert :into
th eholder and press down on th eright until it
engages.
Cigarette lighter
GWARNIN G
You can burn yourself if you touch th ehot
heating elemen tor th esocke tof th ecigarette
lighter.
In addition ,flammabl ematerials can ignit eif:
Rth ehot cigarette lighte rfalls
Ra child hold sth ehot cigarette lighte rto
objects ,for exampl e
There is aris kof fir eand injury.
Always hold th ecigarette lighte rby th eknob.
Always mak esur ethat th ecigarette lighte ris
out of reac hof children .Never leav echildren
unsupervised in th evehicle.
!The cigarette lighte rin th ecenter console in
th efron tcompartmen tis no tintended for
operating th etire inflation compressor.
Your attention mus talways be focused on th e
traffic conditions. Only use th ecigarette lighte r
when road and traffic condition spermit .
288Features
Stowage and features
XTurn the SmartKey to position2in the ignition
lock (Ypage 134).
XTo open: slide cover :to its foremost posi-
tion.
XPress in cigarette lighter ;.
Cigarette lighter ;will pop out automatically
when the heating element is red-hot.
XTo close: pull cover :back as far as it will go.
12 V sockets
General notes
XTurn the SmartKey to position 1in the ignition
lock (Ypage 134).
With the exception of the socket in the front
center console, all sockets can be used for
accessories with a maximum current draw of
240 W (20 A). The socket in the front center
console can be used for accessories with a max- imum current draw of 180 W(15 A). Accessories
include such items as chargers for mobile
phones.
If you use the sockets for long periods when the
engine is switched off, the battery may dis-
charge.
iAn emergency cut-out ensures that the on-
board voltage does not drop too low. If the on- board voltage is too low, the power to the
sockets is automatically cut. This ensures
that there is sufficient power to start the
engine.
Socket in the front-compartment center
console
!The socket is not suitable for operating the
tire inflation compressor.
XTo open: slide cover :to its foremost posi-
tion.
XLift up the cover of socket ;.
XTo close:pull cover :back as far as it will go.
Socket in the rear-compartment center
console
Vehicles with the Rear Seat Entertainment Sys-
tem have two sockets in the center console in
the rear compartment.
XLift up the cover of socket :.
Socket in the cargo compartment
XLift up the cover of socket:.
115 V socket
Important safety notes
GDANGER
When a suitable device is connected, the
115 V power socket will be carrying a high
voltage. You could receive an electric shock if the connector cable or the 115 V power
Features289
Stowage and features
Z
Useful information
i
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of publica-
tion of the Operator's Manual. Country-spe-
cific differences are possible. Please note
that your vehicle may not be equipped with all
features described. This also applies to
safety-related systems and functions.
iRead the information on qualified specialist
workshops (Ypage 26).
Where will I find...?
Vehicle tool kit
General notes
The vehicle tool kit can be found in the stowage
well under the cargo compartment floor.
Apart from certain country-specific variations,
the vehicles are not equipped with a tire-change
tool kit. Some tools for changing a wheel are
specific to the vehicle. For more information on which tools are required to perform a wheel
change on your vehicle, consult a qualified spe-
cialist workshop.
Tools required for changing a wheel may
include, for example:
RJack
RWheel chock
RLug wrench
RRatchet wrench
RAlignment bolt
Vehicles with a TIREFIT kit
:Jack
;Folding wheel chock
=Towing eye
?Alignment bolt
ATire inflation compressor
BLug wrench
CRatchet wrench
DTire sealant filler bottle
XOpen the tailgate.
XLift the cargo compartment floor upwards
(Ypage 284).
XUse the TIREFIT kit (Ypage 317).
Flat tire
Preparing the vehicle
Your vehicle may be equipped with:
RMOExtended tires (tires with run-flat proper-
ties)
Vehicle preparation is not necessary on vehi-
cles with MOExtended tires
Ra TIREFIT kit (Ypage 315)
Ran emergency spare wheel (only for certain
countries)
Information on changing and mounting wheels
(
Ypage 351).
XStop the vehicle on solid, non-slippery and
level ground, as far away as possible from
traffic.
XSwitch on the hazard warning lamps.
XSecure the vehicle against rolling away
(Ypage 156).
XIf possible, bring the front wheels into the
straight-ahead position.
Flat tire315
Breakdown assitance
XVehicles with the AIRMATIC package:
make sure that the normal vehicle level is
selected (
Ypage 183).
XSwitch off the engine.
XVehicles without KEYLESS-GO:remove the
SmartKey from the ignition lock.
XVehicles with KEYLESS-GO: open the driv-
er's door.
The on-board electronics now have status 0.
This is the same as the SmartKey having been
removed.
XVehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(
Ypage 134).
XMake sure that the engine cannot be started
via your smartphone (Ypage 136).
XMake sure that the passengers are not endan-
gered as they do so. Make sure that no one is
near the danger area while a wheel is being
changed. Anyone who is not directly assisting
in the wheel change should, for example,
stand behind the barrier.
XGet out of the vehicle. Pay attention to traffic
conditions when doing so.
XClose the driver's door.
iOnly operate the tire inflation compressor
using a 12 V socket, even if the ignition is
turned off (
Ypage 289).
An emergency cut-out ensures that the on-
board voltage does not drop too low. If the on-
board voltage is too low, the power to the
sockets is automatically cut. This ensures
that there is sufficient power to start the
engine.
MOExtended tires (tires with run-flat
properties)
General notes
With MOExtended tires (tires with run flat char-
acteristics), you can continue to drive your vehi-
cle even if there is a total loss of pressure in one
or more tires. The affected tire must not show
any clearly visible damage.
You can recognize MOExtended tires by the
MOExtended marking which appears on the
sidewall of the tire. You will find this marking
next to the tire size designation, the load-bear-
ing capacity and the speed index (
Ypage 346). MOExtended tires may only be used in conjunc-
tion with an active tire pressure loss warning
system or with an active tire pressure monitor.
If a pressure loss warning message appears
in the multifunction display:
Robserve the instructions in the display mes-
sages (Ypage 259).
Rcheck the tire for damage.
Rif driving on, observe the following notes.
The driving distance possible in run-flat mode is
approximately 50 miles (80 km) when the vehi-
cle is partially laden and approximately 18 miles
(30 km) when the vehicle is fully laden.
In addition to the vehicle load, the driving dis-
tance possible depends upon:
Rvehicle speed
Rroad condition
Routside temperature
The driving distance possible in run-flat mode
may be reduced by extreme driving conditions
or maneuvers, or it can be increased through a
moderate style of driving.
The driving dista
nce possible in run-flat mode is
counted from the moment the tire pressure loss
warning appears in the multifunction display.
You must not exceed a maximum speed of
50 mph (80 km/h).
When replacing one or all tires, please observe
the following specifications for your vehicle's
tires:
Rsize
Rtype and
Rthe "MOExtended" mark
Vehicles equipped with MOExtended tires are
not equipped with a TIREFIT kit at the factory. It
is therefore recommended that you additionally
equip your vehicle with a TIREFIT kit if you mount tires that do not feature run-flat properties, e.g.
winter tires. A TIREFIT kit may be obtained from
a qualified specialist workshop.
Important safety notes
GWARNING
When driving in emergency mode, the driving
characteristics deteriorate, e.g. when corner-
ing, accelerating quickly and when braking.
There is a risk of an accident.
316Flat tire
Breakdown assitance