Page 89 of 497

R
engin etorque is restricted to alimited
degree and the drive wheels are able to spin
The spinning of the wheels results in acut-
tinga ction for better traction on loose sur-
faces.
R ESP ®
still provides support when you brake
firmly
Characteristics when ESP ®
is deactivated
If ESP ®
is deactivated and one or more wheels
start to spin, the ÷ESP®
warning lamp in
the instrument cluster does not flash. In such
situations, ESP ®
will not stabilise the vehicle.
If you deactivat eESP®
:
R ESP ®
no longer improves driving stability
R engin etorque is restricted to alimited
degree and the drive wheels are able to spin
The spinning of the wheels results in acut-
tinga ction for better traction on loose sur-
faces.
R traction control is still activated
R PRE-SAFE ®
is no longer available; it is also
not activated if you brake firmly with assis-
tanc efrom ESP ®
R PRE-SAFE ®
Brak eisnol onger available; it
is also not activated if you brake firmly with
assistanc efrom ESP ®
R ESP ®
still provides support when you brake
firmly
ESP ®
trailer stabilisation General notes
If your vehicle/trailer combination begins to
lurch, ESP
®
assists you in this situation .ESP ®
slows the vehicle down by brakin gand limit-
ing the engin eoutput until the vehicle/trailer
combination has stabilised.
Important safet ynotes G
WARNING
If road and weather conditions are poor,
trailer stabilisation will not be able to prevent the vehicle/trailer combination from swerv- ing. Trailers with
ahigh centre of gravity can
tip over before ESP ®
can detec tthis. There is
ar isk of an accident.
Always adapt your driving style to the prevail- ing road and weather conditions.
If your vehicle/trailer combination begins to
lurch, you can only stabilise the vehicle/
trailer combination by depressing the brake
firmly.
ESP ®
trailer stabilisation is activ eabove
speeds of about 65 km/h.
ESP ®
trailer stabilisation does not work if
ESP ®
is deactivated or disabled because of a
malfunction. EBD (electronic brak
eforce distribu-
tion)
General notes EBDm
onitors and controls the brake pres-
sure on the rear wheels to improve driving
stability while braking.
Important safet ynotes i
Observe the "Important safety notes" sec-
tion for driving safety systems (Y page 77). G
WARNING
If EBDism alfunctioning, the rear wheels can
lock, e.g. under full braking. This increases the risk of skidding and an accident.
You should therefore adapt your driving style
to the differen thandling characteristics. Have
the brake system checked at aqualified spe-
cialist workshop.
Observe information regarding indicator and
warning lamps (Y page 332) as well as dis-
play messages (Y page 302). ADAPTIVE BRAKE
i Observe the "Important safety notes" sec-
tion (Y page 77). 86
Driving safet
ysystemsSafety
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ADAPTIVE BRAK
Eenhance sbraking safety
and offers increased braking comfort. In addi-
tio ntot he braking function, ADAPTIVE BRAKE
also ha sthe HOLD functio n(Ypage 228 )and
hill start assist (Y page 183). PRE-SAFE
®
Brake
General notes i
Observ
ethe "Important safety notes "sec-
tio n(Ypage 77).
PRE‑SAFE ®
Brake is onl yavailable for vehi-
cle sw itht he Driving Assistance package.
For PRE-SAFE ®
Brake to assist yo uwhend riv-
ing ,the rada rsensor system and the camera
system must be switched on and operational.
With the hel pofthe rada rsensor system and
the camera system ,PRE -SAFE ®
Brake can
detect obstacle stha tare in front of your vehi-
cle for an extende dperiodoft ime.
In addition, pedestrians in the path of your
vehicl ecan be detected.
PRE-SAFE ®
Brake detects pedestrians using
typica lcharacteristics such as the body con-
tours and posture of aperso ns tanding
upright.
Observ ethe restrictions describe dinthe
"Important safety notes "section
(Y page 87).
PRE-SAFE ®
Brake can hel pyou to minimise
the ris kofacollision with avehicl eahead or a
pedestrian, and reduce the effects of such a
collision. If PRE-SAFE ®
Brake ha sdetecte da
ris kofc ollision, yo uwillbew arned visually
and acousticall yaswellasbya utomatic brak-
ing.
Important safety notes G
WARNING
PRE-SAFE ®
Brake will initiall ybrake your vehi-
cle by apartia lappli catio noft he brakes if a
dange rofcollision is detected. There ma ybe
ac ollision unless yo ubrake yourself. Even after subsequent full applicatio
nofthe brakes
ac ollision canno talway sbea voided ,partic-
ularly when approaching at too high aspeed.
There is ariskofana ccident.
Alway sapply the brakes yoursel fand try to
take evasive action, provided it is safe to do
so. G
WARNING
PRE-SAFE ®
Brake canno talway sclearly iden-
tify objects and comple xtraffic conditions.
In thes ecases, PRE-SAFE ®
Brake may:
R give an unnecessary warning and then
brake the vehicle
R neither give awarning nor intervene
There is ariskofana ccident.
Alway spayparticula rattentio ntothe traffic
situatio nand be ready to brake, especially if
PRE-SAFE ®
Brake warns you. Terminate the
interventio ninanon-critica ldriving situation.
In order to maintain the appropriate distance
to the vehicl einfront and thu sprevent acol-
lision, yo umusta pply the brakes yourself.
The PRE-SAFE ®
Brake functio ncan also brake
the vehicl eautomaticall yunder the following
conditions:
R the driver and front passenge rhavet heir
sea tbelts fastened
and
R the vehicl espeed is between approx-
imatel y7km/h and 200 km/h
At as peed of up to approximatel y70k m/h,
PRE-SAFE ®
Brake can also detect:
R stationar yobjects in the path of your vehi-
cle ,e.g.s toppe dorp arked vehicles
R pedestrians in the path of your vehicle G
WARNING
PRE-SAFE ®
Brake does not react:
R to small people ,e.g.c hildren
R to animals
R to oncoming vehicles Driving safety systems
87Safety
Z
Page 91 of 497

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
Page 92 of 497

You can prevent the intervention of PRE-
SAFE ®
Brak eata ny tim eby:
R depressing the accelerator pedal further
R activatin gkickdown
R releasin gthe brak epedal
The braking action of PRE-SAFE ®
Brak eis
ended automatically if:
R you manoeuvre to avoid the obstacle
R there is no longer arisk of collision
R there is no longer an obstacle detected in
front of your vehicle STEER CONTROL
General notes STEER CONTROL helps you by transmitting a
noticeable steerin gforce to the steering
wheel in the direction required for vehicle
stabilisation.
This steerin gsupport is provided in particular
if:
R both right wheels or both left wheels are on
as lippery road surfac ewhen you brake
heavily
R the vehicle starts to skid
Important safet ynotes i
Observe the "Importan
tsafet ynotes" sec-
tion (Y page 77).
No steerin gsupport is provided by STEER
CONTROL ,if:
R ESP ®
is malfunctioning
R the steerin gisfaulty
Power steerin gwill, however ,continue to
function. Protection against theft
Immobiliser
The immobiliser prevent syour vehicle from
being started without the correc tkey. X
To activat ewith th ekey: remove the key
fro mt he ignition lock.
X To activat ewith KEYLESS-GO: switchthe
ignition off and open the driver's door.
X To deactivate: switchont he ignition.
When leavin gthe vehicle, always tak ethe key
with you and lock the vehicle. Anyone can
star tthe engin eifavalid key has been left
inside the vehicle.
i The immobiliser is always deactivated
when you star tthe engine. ATA (Anti-Theft Alar
msystem) X
To prime: lock the vehicle with the key or
KEYLESS-GO.
Indicator lamp :flashes .The alarm sys-
tem is prime dafter approximately
15 seconds.
X To deactivate: unlockthe vehicle with the
key or KEYLESS-GO.
or X Insert the key int othe ignition lock.
Av isual and audible alarm is triggered if the
alarm system is primed and you open:
R ad oor
R the vehicle with the emergenc ykey ele-
ment
R the boot lid/tailgate
R the bonnet Protection against theft
89Safety Z
Page 93 of 497

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
Page 94 of 497

Interior motion sensor
Function When th
einterio rmotion sensor is primed, a
visual and audible alarm is triggered if move-
men tisd etecte dinthevehicl einterior. This
can occur if someon ereaches int othe vehicle
interior, for example.
Priming X
Mak esure that:
R thes ide windows are closed
R thes liding sunroof/panoram asliding
sunroo fisclosed
R there are no objects ,e.g.m ascots ,hang-
ing on th erear-view mirror or on th egrab
handles on th erooftrim
This will preven tfals ea larms.
X Mak esure that:
R thed oor sare closed
R thes liding sunroof/panoram asliding
sunroo fisclosed
R theb oot lid/tailgat eisclosed
Only then is th einterio rmotion sensor
primed.
X Loc kthe vehicl ewitht he keyorK EYLESS-
GO.
The interio rmotion sensor is primed after
approximately 30 seconds.
Deactivating X
Unloc kthe vehicl ewitht he keyorK EY-
LESS-GO.
or X Inser tthe keyintot he ignition lock.
The interio rmotion sensor is automatically
switched off.
X Unloc kthe vehicl ewitht he key.
or
X Inser tthe keyintot he ignition lock.
The interio rmotion sensor is automatically
switched off. X
Unloc kthe vehicl ewithK EYLESS-GO or
wit hthe key.
or X Inser tthe keyintot he ignition lock.
The interio rmotion sensor is automatically
switched off.
Deactivating X
Remove th ekeyfrom th eignition lock.
X Press button :.
Indicato rlamp ;flashes several times in
rapid succession.
X Loc kthe vehicl ewitht he keyorK EYLESS-
GO.
The interio rmotion sensor is deactivated.
The interio rmotion sensor remains deactiva-
te du ntil:
R thev ehicl eisu nlocked again and
R ad oor is opened and closed again and
R thev ehicl eislocke dagain
To preven tafalsea larm ,deactivat ethe inte-
rio rm otion sensor if you loc kyour vehicle
and:
R people or animals remain in th evehicle
R thes liding sunroof/panoram asliding sun-
roo fremain sopen
R thes ide windows remain open
i UK only:
your vehicl eisequipped wit ha
double-lock function .The door scanno tbe
opened from th einside if th evehicl ehas
been locke dwitht he keyorw ithK EYLESS-
GO (Y page 101). Deactivat ethe interior
motion sensor before you loc kthe vehicle. Protection against theft
91Safety Z
Page 95 of 497
The doors can then be opened from the
inside after the vehicle has been locked
from the outside. Observe the "Important
safety notes" (Y page 100).92
Protection against theftSafety
Page 96 of 497
Useful information
..............................94
Key ........................................................ 94
Doors .................................................. 100
Boot/luggage compartment ............103
Side windows .................................... 110
Sliding sunroof .................................. 114 93Opening and closing