
Deactivating/activating ESP
®
(AMG
vehicles) Important safet
ynotes
You can selec tbetween th efollowing sta-
tuses of ESP ®
:
R ESP ®
is activated
R SPORT handlin gmodeisa ctivated
R ESP ®
is deactivated G
WARNING
Whe nSPORT handlin gmodeisa ctivated,
there is agreater ris kofskidding and acci-
dents.
Only activat eSPORT handlin gmodeint hesit-
uation sdescribed in th efollowing. G
WARNING
If you deactivat eESP®
,E SP ®
no longer sta-
bilises th evehicle. There is an increase drisk
of skidding and an accident.
Only deactivat eESP®
in th esituation sdescri-
bed in th efollowing.
In th efollowing situations, it may be bette rto
activat eSPORT handlin gmodeord eactivate
ESP ®
:
R when usin gsnowc hains
R in deep snow
R on san dorgravel
R on specially designated roads when the
vehicle' sown oversteering and understeer-
in gc haracteristics are desired
Driving in SPORT handlin gmodeorw ithout
ESP ®
require sanextremel yqualified and
experience ddriver.
i Activat
eESP®
as soo nasthesituations
described abov enolonger apply. ESP ®
will
otherwise no tbeable to stabilise th evehi-
cl eift hevehicle start stoskidoraw heel
start stos pin. Deactivating/activating ESP
® X
To activate SPORT handling mode:
briefly press button :.
The M handlin gmodew arnin glamp in
th ei nstrument cluster lights up. The
SPORT handling mode SPORT handling mode message appears
in th emultifunction display.
X To deactivate SPORT handling mode:
briefly press button :.
The M handlin gmodew arnin glamp in
th ei nstrument cluster goe sout.
X To deactivate ESP ®
:press button :until
the å ESP®
OF Fw arnin glamp lights up
in th einstrument cluster.
The ÷ OFF
OFFmessage appears in th emul-
tifunction display.
X To activate ESP ®
:briefly press button :.
The å ESP®
OF Fw arnin glamp in the
instrumen tcluster goe sout.T he ÷
ESP ®
ON
ON message appears in th emultifunc-
tion display.
Characteristics of activate dSPORT han-
dling mode
If SPORT handlin gmodeisa ctivated and one
or more wheels start to spin, the ÷ESP®
warnin glamp in th einstrument cluster
flashes .ESP ®
only stabilises th evehicle to a
limited degree.
Whe nSPORT handlin gmodeisa ctivated:
R ESP ®
only improves drivin gstability to a
limited degree
R traction contro lisstill activated Driving safet
ysyste ms
85Safety Z

R
to crossing traffic
R when cornering
As aresult, PRE-SAFE ®
Brake ma yneither
give warnings nor intervene in al lcritica lsit-
uations. There is ariskofana ccident.
Alway spaycarefu lattentio ntothe traffi csit-
uatio nand be ready to brake.
In the event of snowfall or heav yrain, detec-
tio nc an be impaired.
Detectio nbythe rada rsensor system is also
impaire dinthe event of:
R dirt on the sensor sorobscured sensors
R interferenc ebyotherradar sources
R strong rada rreflections, for example, in
multi-storey car parks
R an arrow vehicl etravelling in front, e.g .a
motorcycle
R av ehicl etravelling in front on adifferent
line
Detectio nbythe camera system is also
impaire dinthe event of:
R dirt on the camera or if the camera is cov-
ered
R glar eont he camera system ,e.g.f ro mt he
su nb eing lo wint he sky
R darkness
R if:
- pedestrians mov equickly, e.g .into the
path of the vehicle
- the camera system no longe rdetects a
pedestrian as aperso nd ueto special
clothing or othe robjects
- ap edes trian is concealed by other
objects
- the typica loutline of aperso ni sn ot dis-
tinguishabl efromt he background
Following damage to the front end of the vehi- cle ,havet he rada rsensor setting sand oper-
ation checked at aquali fied specialis twork-
shop. This also applie stocollisions at slow
speeds where there is no visible damage to
the front of the vehicle. Following damage to the windscreen, have
the configuratio nand operatio nofthe cam-
era syste mchecked at aquali fied specialist
workshop.
Function X
To activate/deactivate: activate or deac-
tivate PRE-SAFE ®
Brake in the on-board
compute r(Ypage 287).
If the PRE-SAFE ®
Brake is not activated ,the
æ symbo lappears in the multifunction
display.
This functio nwilli ssue awarning if:
R at as peed of approximately 30 km/h or
mor ethe distance maintaine dtothe vehi-
cle travelling in front is insufficient for sev-
era lsec onds
The · distance warning lamp the nlights
up in the instrument cluster.
R at as peed of approximately 7km/h or
more, yo urapidly approach avehicl ein
front
An intermittent warning tone will then
sound and the ·distance warning lamp
will light up in the instrument cluster.
X Brake immediatel ytodefusethe situation.
or
X Take evasive action provided it is safe to do
so.
If there is an increase driskofc ollision, pre-
ventive passenge rprotection measures (PRE-
SAFE ®
)a re activated.
If the risk of collision with the vehicl einfront
remains and yo udonot brake, take evasive
action or accelerate significantly, the vehicle
ma yperform automatic emergency braking,
up to the point of full brake application. Auto- matic emergency braking is not performed
unti limm ediatel yprior to an imminent acci-
dent. 88
Driving safet
ysystemsSafety

X
To switc hthe alarm of fwitht he key:
press the %or& button on the key.
The alar misswitched off.
or
X Remov ethe Start/Stop button from the
ignition lock.
X Insert the key into the ignition lock.
The alar misswitched off.
X To switc hthe alarm of fusing KEYLESS-
GO: grasp the outside door handle. The key
must be outside the vehicle.
The alar misswitched off.
or X Press the Start/Stop button on the dash-
board. The key must be insid ethe vehicle.
The alar misswitched off.
The alar misnot switched off, eve nifyou
close the open door tha thas triggered it, for
example. Tow-away protection
Function An audibl
eand visua lalarm is triggered if your
vehicle's angle of inclinatio nisa ltere dw hile
tow-away protection is primed .Thisc an occur
if the vehicl eisjacke dupono ne side,for
example.
Priming X
Make sure that:
R the doors ar eclosed
R the boot lid/tailgate is closed
Onl ythen is the tow-away protection
primed.
X Lock the vehicl ewitht he key or KEYLESS-
GO.
Tow-away protection is primed after
approximatel y30s econd s. De
activating X
Unlock the vehicle with the key or KEY-
LESS-GO.
or X Insert the key into the ignition lock.
Tow-awa yprotection is deactivated auto-
matically.
Deactivating X
Remove the key from the ignition lock.
X Press button :.
Indicator lamp ;lights up briefly.
X Lock the vehicle with the key or KEYLESS-
GO.
Tow-awa yprotection is deactivated.
Tow-awa yprotection remains deactivated
until:
R the vehicle is unlocked again and
R ad oor is opened and close dagain and
R the vehicle is locked again
To prevent afalse alarm, deactivate tow-away
protection if you lock you rvehicle and it:
R is being transported
R is being loaded onto aferry or car trans-
porter, for example
R is parked on amovable surface, e.g. in a
split-leve lgarage 90
Protection against theftSafety

Key functions
:
& Locks th evehicle
; F Unlocks th eboot lid/tailgate
= % Unlocks th evehicle
X To lock centrally: press the&button.
The ke ycentra lly locks/unlocks:
R thed oors
R theb oot lid/tailgate
R thef uel filler flap
When unlocking ,the turns ignals flas honce.
When locking ,the yflas hthree times.
You can also set an audible signal to confirm that th evehicl ehas been locked. The audible
signal can be activated or deactivated using
th eo n-bo ard computer (Y page 293).
When it is dark ,the surroun dlighting also
comes on if it is activated in th eon-bo ard
computer (Y page 292). KEYLESS-GO
Genera lnotes Bear in min
dthatthe engin ecan be started by
any of th evehicl eoccupant sifthere is aKEY-
LESS-GO ke yint he vehicle.
Lockin gand unlockin gcentrally You can start
,loc koru nlockthe vehicl eusing
KEYLESS-GO .Todothis, you only need carry
th ek eywit hyou. You can combin ethe KEY-
LESS-GO function switht he function sofa
conventional key. Unloc kthe vehicl ebyusing KEYLESS-GO
,for instance, and loc kitusing
the & buttonont hekey.
When locking or unlocking wit hKEYLESS-GO,
th ed istanc ebetween th ekeyand th ecorre-
spondin gdoor handle mus tnotbe greater
than 1m.
Ac heck whichperiodically establishes aradio
connection between th evehicl eand th ekey
determines whether avalid ke yisinthe vehi-
cle .This occurs, for example:
R when th eexternal door handles are
touched
R when startin gthe engine
R whils tdriving X
To unlock th evehicle: touch th einner
s urfac eoft hedoor handle.
X To lock th evehicle: touch sensor sur-
face :.
X Convenience closin gfeature: touch
recessed sensor surface ;for an exten-
ded period.
Fo rfurther information on th econveni ence
closin gfeature (Y page 112). Key
95Opening and closing Z

Example: Saloon
X To unloc kthe boot lid/tailgate: pull the
handl eont he boot lid/tailgate.
The vehicl eonlyu nlocks the boot lid/tail-
gate.
Deactivatin gand activating If yo
udon ot intend to us eakey for an exten-
de dp eriodoft ime,you can deactivate the
KEYLESS-GO functio nofthe key .The key will
then us everyl ittle power, thereb yconserving
battery power. For the purposes of activa-
tion/deactivation, the vehicl edoesn ot have
to be nearby.
X To deactivate: press the&button on
the key twice in rapi dsuccession.
The battery check lamp of the key
(Y page 97 )flashe stwice briefl yand
lights up once ,then KEYLESS-GO is deac-
tivated.
X To activate: press any button on the key or
insert the key into the ignition lock.
KEYLESS-GO and al lofits associate dfea-
tures ar eavailable again. Changin
gthe settings of the locking
system
Yo uc an change the settings of the locking
system .Thism eans tha tonlyt he driver's door
and the fuel fille rflapa reunlocke dwhent he
vehicl eisunlocked. Thi sisusefulify oufre-
quentl ytravel alone. X
To chang ethe setting: simultaneously
press the %and& buttons on the
key for approximatel ysixsecond suntilthe
battery check lamp flashe stwice
(Y page 97).
i If the setting of the locking system is
change dwithi nt he signa lran ge of the vehi-
cle ,pressing the &or% button:
R locks or
R unlocks the vehicle
The key now functions as follows:
X To unloc kthe driver' sdoor: press the
% button once.
X To unloc kcentrally: press the %but-
ton twice.
X To lock centrally: press the&button.
The KEYLESS-GO functio nisc hange dasfol-
lows:
X To unloc kthe driver' sdoor: touch the
inne rsurface of the door handl eonthe
driver's door.
X To unloc kcentrally: touch the inne rsur-
face of the door handl eonthe front-
passenge rdoorort he rea rdoor.
X To lock centrally: touch the outer sensor
surface on one of the door handles.
X To restore the factory settings: press
and hol ddownthe % and& buttons
simultaneously for approximatel ysixsec-
ond suntilthe battery check lamp flashes
twice (Y page 97). Emergenc
ykeyelement
General notes If the vehicl
ecan no longe rbelocked or
unlocke dwitht he key ,use the emergency
key element.
If yo uusethe emergency key element to
unlock and open the driver's door or the boot
lid/tailgate, the anti-thef talarm system will
be triggered (Y page 89).96
KeyOpening and closing

There are several ways to deactivate the
alarm:
X To deactivat ethe alarmw ith the key:
press the %or& button on the key.
or
X Insert the key into the ignition lock.
or X To deactivat ethe alarmw ith KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The key must be in the vehicle.
or
X Lock or unlock the vehicle using KEYLESS-
GO. The key must be outside the vehicle.
If you unlock the vehicle using the emergency
key element, the fuel filler flap will not be
unlocked automatically.
X To unlock the fuel filler flap: insert the
key into the ignition lock.
Removing the emergency key element X
Push release catch :in the direction of
the arrow and, at the same time, remove
emergenc ykey element ;from the key.
Further information about: R unlockin gthe driver's door (Y page 102)
R unlockin gthe boot (Y page 109)
R unlockin gthe tailgate (Y page 110)
R lockin gthe vehicle (Y page 103) Inserting the emergency key element X
Push emergenc ykey element ;fully into
the key until it engages and release
catch :return stoits basic position. Battery of the key
Checking the battery X
Press the &or% button.
The battery is working properly if battery
check lamp :lights up briefly.
The battery is discharged if battery check
lamp :does not light up briefly.
X Replace the battery (Y page 97).
i If the battery of the key is checked within
the signal reception range of the vehicle,
pressing the &or% button:
R locks or
R unlocks the vehicle
i You can obtain
abattery from any quali-
fied specialist workshop.
Replacing the battery You require
aCR20253Vc ell battery.
X Take the emergenc ykey element out of the
key (Y page 97). Key
97Opening and closing Z

Problem
Possible causes/consequences and
M
MSolutions The engine cannot be
started using the key. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 404).
or
X Jump-start the vehicle (Y page 405).
or
X Consult aqualified specialist workshop. Only for vehicles with
manual transmission:
The engine cannot be
started using the key. The steering lock is mechanically blocked.
X Remove the key and reinsert it into the ignition lock. While doing
this, turn the steering wheel in both directions. The engine cannot be
started using KEYLESS-
GO. The key is in the
vehicle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. There is interference from
apowerful source of radio waves.
X Start your vehicle with the key in the ignition lock. Doors
Important safety notes
United Kingdom only: G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a
risk of injury.
Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle.
If the vehicle has been locked from the out-
side, the double lock function is activated as
standard. It is then not possible to open the
doors from inside the vehicle. You can deac- tivate the double lock function by deactivat-
ing the interior motion sensor (Y page 91).
The doors can then be opened from the inside after the vehicle has been locked from the
outside.
The anti-theft alarm system is triggered if thedoor is opened from the inside. Switch off the
alarm (Y page 89).
All countries: G
WARNING
If children are left unsupervised in the vehicle, they could:
R open doors, thereby endangering other per-
sons or road users
R get out and be struck by oncomingt raffic
R operate vehicle equipment and become
trapped, for example 100
DoorsOpening and closing

Estate:
you can:
R open and close th etailgate manually from
outside
R open th etailgate manually from inside
(Estat ewithafolding bench seat)
R open and close th etailgate automatically
from outside
R open and close th etailgate automatically
from inside
R limit th eopening angl eofthetailgate
R unlock th etailgate usin gthe emergency
key element Boot lid/tailgate reversing function
The boot lid/tailgat eisequipped with an
automatic reversing feature. It reacts if asolid
object obstructs or restrict sthe boot lid/tail-
gat edurin gthe closin gprocedure .The boot
lid/tailgat eopen sagain automatically. The
automatic reversing function is only an aid
and is no tasubstitut efor your attentiveness
to th eboot lid/tailgat ewhile it is closing. G
WARNING
The reversing function does no treact:
R to soft, light and thin objects, e.g .small fin-
gers
R over th elast 8mmoft heclosin gpath
This mean sthatthe reversing feature cannot
prevent someon ebeingtrapped in these sit-
uations .Ther eisar isk of injury.
When closin gmakes ure that no body parts
are in th eclosin garea.
If someon eistrapped:
R pres sthe F button on th ekey or
R pull or pres sthe remot eoperatin gswitch
on th edriver' sdoor or
R pres sthe closin gorlockin gbutton on the
boot lid/tailgate, or
R pull th ehandle on th eboot lid/tailgate Opening/closin
gfromt heoutside
Opening Handle (example
:Saloon)
X Pres sthe % button on th ekey.
X Saloon: pull handle :.
X Raise th eboot lid.
Estate: if you pull handle :and kee pitinthis
position ,you can open th etailgate manually.
If you releas ethe handle, th etailgate opens
automatically.
Closing Recess (example
:Saloon)
X Pull th eboot lid/tailgat edown using
recess :.
X Estate: let thetailgate drop int othe lock.
X Loc kthe vehicle if necessar ywith the &
button on th ekey (Y page 95 )orwith KEY-
LESS-GO (Y page 95).104
Boot/luggage compartmentOpening and closing