Make sure
that there are no overhanging loads
pr otru ding into the de tection range.
If th ere is damage toa bumper or thera diator
grille, or af ter an impact, ha vethe function of
th e sensors checked at a qualified specialist
wo rkshop. Ha vedamage or stone chipping in the
area of the cameras on the front and rear win‐
do ws repaired at a qualified specialist workshop. Overview of driving sy
stems and driving
saf ety sy stems R
ABS (Anti-lock Braking System)
(/ page 221)
R BAS (Bra keAssist System) (/ page 222)
R ESP ®
(Electronic Stability Program)
(/ page 222)
R ESP ®
Crosswind Assist (/ page 223)
R ESP ®
trailer stabilisation (/ page 223)
R EBD (Electronic Brakeforc eDistribution)
(/ page 224)
R STEER CONTROL (/ page 224)
R HOLD function (/ page 224) R
Hill Start Assist (/ page 225)
R Adaptive Brake Lights (/ page 226)
R ATTENTION ASSIST (/ page 226)
R Limiter (/ page 228)
R Traf fic Sign Assi st (/ page 247)
R Traf fic light view (/ page 251)
R AIRMATIC (/ page 258)
Driving Assistance pac kage
R Active Dis tance Assi stDISTRONIC
(/ page 229)
R Active Speed Limit Assi st(countr y-depend‐
ent) (/ page 234)
R Route-based speed adap tation (countr y-
dependent) (/ page 235)
R Active Brake Assi st (/ page 243)
R Active Steering Assist (count ry-dependent)
(/ page 237)
R Active Emergency Stop Assist (countr y-
dependent) (/ page 239)
R Active Lane Change Assi st(countr y-depend‐
ent) (/ page240) R
Active Stop-and-Go Assist (countr y-depend‐
ent) (/ page 236)
R Active Blind Spot Assi stwith exitwa rning
(/ page 251)
R Active Lane Keeping Assist (/ page 255)
R PRE-SAFE ®
Impulse Side (/ page 56)
Pa rking Package
R Reversing camera (/ page 260)
R 360° Camera (/ page 262)
R Parking Assist PARKTRONIC (/ page 267)
R Active Parking Assist (/ page271)
R Remo teParking Assist (/ page275) Fu
nction of ABS The Anti-lock Brake Sy
stem (ABS) regulates the
brake pressure in critical driving situations:
R During braking, e.g. at full brake application
or insuf ficient tyre traction, the wheels are
pr ev ented from locking.
R Vehicle steerability while braking is ensured. Driving and parking
221
If ABS inter
venes when braking, you will feel a
pulsing in the brake pedal. The pulsating brake
pedal can be an indication of hazardous road
conditions and can ser veas a reminder totake
ex tra care while driving. Fu
nction of BAS The Brake Assist Sy
stem (BAS) supports your
eme rgency braking situation with additional
brake forc e.
If yo u depress the brake pedal quickl y,BA S is
acti vated:
R BAS au tomatical lyboosts the brake pres‐
sure.
R BAS can sho rten the braking dis tance.
R ABS pr events the wheels from locking.
The brakes will function as usual once you
re lease the brake pedal. BAS is deactivated. Fu
nction of ESP ®
(Electronic Stability Pro‐
gr am) &
WARNING Risk of skidding if ESP ®
is
deactivated
If yo u deactivate ESP ®
, ESP ®
cannot car ry
out vehicle stabilisation. #
ESP ®
should on lybe deactivated in the
fo llowing situations. ESP
®
can monitor and impr ovedriving stability
and traction in thefo llowing situations, within
ph ysical limits:
R When pulling away on wet or slippe rycar ria‐
ge wa ys.
R When braking.
If th eve hicle deviates from the direction desired
by the driver, ESP ®
can stabilise theve hicle by
inter vening in thefo llowing ways:
R One or more wheels are braked.
R The engine output is adap ted according to
th e situation. When ESP
®
is deactivated, theå warning
lamp lights up continuously:
R Driving stability will no lon ger be impr oved.
R The drive wheels could spin.
R ETS/4ETS traction control is still active.
% When ESP ®
is deactivated, you are still assis‐
te dby ESP ®
when braking.
When the÷ warning lamp flashes, one or
se veral wheels has reached its grip limit:
R Adapt your driving style to suit the cur rent
ro ad and weather conditions.
R Do not deactivate ESP ®
.
R Only depress the accelerator pedal as far as
is necessary when pulling away.
Deactivate ESP ®
in thefo llowing situations to
impr ovetraction:
R When using snow chains.
R In deep sn ow.
R On sand or gr avel. 222
Driving and parking
%
Spinning the wheels results in a cutting
action, which enhances traction.
If th e÷ ESP®
wa rning lamp lights up continu‐
ousl y,ESP ®
is not available due toa malfunction.
Obse rveth efo llowing information:
R Warning and indicator lamps (/ page 550)
R Display messages (/ page 492)
ETS/4ETS (Electronic Traction Sy stem)
ETS/4E TStraction control is pa rtof ESP ®
and
makes it possible topull away and accelerate on
a slippe rycar riag ew ay.
ETS/4ETS can impr ovetheve hicle's traction by
inter vening in thefo llowing ways:
R The drive wheels are braked individually if
th ey spin.
R More drive torque is transferred tothe wheel
or wheels with traction.
Influence of drive prog rams on ESP ®
The drive prog rams enable ESP ®
to adapt todif‐
fe re nt we ather and road conditions as well as
th e driver's prefer red driving style. Depending on
th e selected drive program, the appropriate ESP
®
mode will be activated. You can select the
drive programs using theDY NA MIC SELECT
switch (/ page 200). Fu
nction of ESP ®
Crosswind Assist ESP
®
Crosswind Assist de tects sudden gu sts of
side wind and helps the driver tokeep theve hi‐
cle in the lane:
R ESP ®
Crosswind Assist is active at vehicle
speeds between appr ox.75 km/h and
200 km/h when driving stra ight ahead or
cornering slight ly.
R The vehicle is stabilised bymeans of individ‐
ual brake application on one side. Fu
nction of ESP ®
trailer stabilisation &
WARNING Risk of accident in poor road
and weather conditions
In poor road and weather conditions, the
trailer stabilisation cannot pr event lur ching of
th eve hicle/trailer combination. Trailers with a high centre of gr
avity may tip over before
ESP ®
de tects this. #
Alw ays adapt your driving style to suit
th e cur rent road and weather condi‐
tions. When driving with a trailer, ESP
®
can stabilise
yo ur vehicle if the trailer begins toswer vefrom
side toside:
R ESP ®
trailer stabilisation is active abo ve
speeds of 65 km/h.
R Slight swerving is reduced bymeans of a tar‐
ge ted, individual brake application on one
side.
R Intheeve nt of se vere swerving, the engine
output is also reduced and all wheels are
braked.
ESP ®
trailer stabilisation may be impaired or
may not function if:
R The trailer is not connec ted cor rectly or is
not de tected prope rly by theve hicle. Driving and parking
223
Ac
tivating/deactivating ESP ®
(Electronic Sta‐
bility Prog ram) Multimedia sy
stem:
4 © 5
ß 5
y
% ESP®
can only be activated/deactivated
using quick access when at least one other
function is available in quick access. ESP ®
can otherwise be found in theAssistance
menu. #
Select ESP. #
Select Onorå Off.
ESP ®
is deactivated if theå ESP®
OFF warn‐
ing lamp lights up continuously in the instrument
clus ter.
Obser veany information on warning lamps and
display messages which may be shown in the
instrument clus ter. Fu
nction of EBD Elect
ronic Breakforce Distribution (EBD) is char‐
acterised bythefo llowing:
R Monitoring and regulating the brake pressure
on there ar wheels.
R Impr oved driving stability when braking,
especially on bends. Fu
nction of STEER CONT ROL ST
EER CONTROL assi stsyo uby transmitting a
noticeable steering forc eto thesteering wheel in
th e direction requ ired forve hicle stabilisation.
This steering recommendation is given in thefo l‐
lowing situations:
R both right wheels or bo thleft wheels are on a
we t or slippe ryroad sur face when you brake
R theve hicle starts toskid
Sy stem limits
ST EER CONTROL may be impaire d or may not
function in thefo llowing situations:
R ESP ®
is deactivated. R
ESP ®
is malfunctioning.
R The steering is malfunctioning.
If ESP ®
is malfunctioning, you will be assis ted
fur ther by the electric po werst eering. HOLD function
HOLD function
The HOLD function holds
theve hicle at a stand‐
st ill without requ iring youto depress the brake
pedal, e.g. while waiting in traf fic.
The HOLD function is only an aid. The responsi‐
bility forth eve hicle safely standing still remains
with the driver.
Sy stem limits
The HOLD function is only intended toprov ide
assis tance when driving and is not a su fficient
means of safeguarding theve hicle against rolling
aw ay when stationar y.
R The incline must not be greater than 30%. 224
Driving and parking
Microsleep de
tection also does not function
when the driver camera cann otdetect theey es
of the driver, as a result of thefo llowing factors,
fo rex ample:
R The driver's eyes are co vered due tothe
st eering column position, forex ample.
R Poor lighting conditions.
R Some types of spectacles or sunglasses.
R The driver's line of vision is outside the driver
camera's field of vision.
Also obser veany information rega rding display
messages that can be displa yed in the driver dis‐
pla y.
The tiredness and alertness assessment of
AT TENTION ASSIST with microsleep de tection is
re set and restar ted when continuing the journey
in thefo llowing situations:
R Ifyo u swit choff the engine.
R Ifyo u unfas tenyo ur seat belt and open the
driver's door (e.g. tochange drivers or take a
break). Setting
ATTENTION ASSI ST
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Assistance 5
ATTENTION ASSIST
Setting the sensitivity #
Tapth e cur rent setting. #
Select Standard orSensitive .
Ac tivating/deactivating the mic rosleep
wa rning #
Activate/deactivate Microsleep warning. Limiter
Fu
nction of the limiter
The limiter restricts the speed of theve hicle. To
re duce the speed tothe set speed, the limiter
applies the brakes automaticall y.
Yo u can limit the speed as follo ws:
R Variable: for a short-term speed restriction,
e.g. in built-up areas
R Perm anen t:for a longer-term speed restric‐
tion, e.g. in winter tyre mode The
variable limiter is operated using the cor re‐
sponding steering wheel buttons (/ page 232).
Yo u can store any speed abo ve20 km/h up to
th e maximum design speed or up tothe set win‐
te r tyre limit. You can also per form settings
while theve hicle is stationary if theve hicle has
been star ted.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 219).
Messages in the driver display
R È (gre y): variable limiter is selec ted but
not yet acti vated.
R È (flashes gr ey):va riable limiter is temp o‐
rari lypassive.
R È (green): variable limiter is activated.
A stored speed appears under theÈ display
and is indicated in the speedome ter.
When the driving speed is greater than the
st ored speed, theÈ display flashes. 228
Driving and parking
Kickd
own
If yo u depress the accelerator pedal be yond the
pressure point (kickdown), theva riable limiter
swit ches topassive mode. The Èpassive
message appears on the driver displa y.
Af ter completion of kickdown, theva riable lim‐
iter is activated again in thefo llowing situations:
R Ifth eve hicle speed drops below thestored
speed.
R Ifth estored speed is called up.
R Ifyo ustore a new speed.
Information on the permanent limiter
If th eve hicle should ne verexc eed a specific
speed (e.g. for driving in winter tyre mode), you
can set this speed with the permanent limiter.
Yo u do this by limiting the speed between
16 0 km/h and 240 km/h in the multimedia sys‐
te m (/ page 229).
Shortly before the set speed is reached, it is
shown in the driver displa y.When you confirm
th e message, display messages no longer appear
until you swit choff theve hicle. The speed will only be displa
yed again once theve hicle has
been restar ted or if the set speed is changed.
The permanent limiter does not swit chtopas‐
sive mode even du ring kickdown and the driven
speed remains below the set speed.
Setting the limit speed for winter tyres
Multimedia sy stem:
4 © 5
Settings 5
Vehicle 5
Driving #
Activate or deacti vate Winter tyre limit.
Setting a speed #
Select ZnexttoWinter tyre limit. #
Select a speed. Ac
tive Di stance Assist DISTRO NIC Fu
nction of Active Di stance Assist
DISTRO NIC
Ac tive Dis tance Assi stDISTRONIC maintains the
set speed on free-flowing roads. If vehicles in
front are de tected, the set dis tance is main‐
ta ined, if necessar y,until theve hicle comes to a
halt. The vehicle accelerates or brakes depend‐
ing on the dis tance totheve hicle in front and th
e set speed. The speed and dis tance tothe
ve hicle in front are set and sa ved using the
st eering wheel.
Ac tive Dis tance Assi stDISTRONIC is available in
th e 20 km/h to210 - km/h speed range.
Other features of Active Dis tance Assi st
DISTRONIC:
R Adjusts the driving style depending on the
selected drive program (fuel-saving, comfort‐
able or dynamic) (/ page199)
R Initia tes acceleration tothestored speed if
th e turn signal indicator is switched on to
ch ange totheov ertaking lane
R Reacts tostationary vehicles de tected in
urban speed ranges (e xcept bicycles and
mo torcyc les)
R Take s one-sided overtaking restrictions into
account on mo torw ays or on multi-lane roads
with separate car riag ewa ys(countr y-depend‐
ent)
Ad ditional function available in cert ain coun‐
tries: ifAc tive Dis tance Assi stDISTRONIC has
braked theve hicle toast andstill, it can automat‐ Driving and parking
229
Sy
stem limits
The sy stem may be impaired or may not function
in thefo llowing situations, forex ample:
R In sn ow,ra in, fog, heavy spr ay, if there is
gl are, in direct sunlight or in greatlyvarying
light conditions.
R The windsc reen in the area of the camera is
dirty, mis ted up, damaged or co vered.
R Ifth era dar sensors are dirty or co vered.
R In multi- stor ey car pa rks or on roads with
st eep uphill or downhill gradients.
R Ifth ere are nar rowvehicles in front, such as
bicycles or mo torcyc les.
In addition, on slippery roads, braking or accel‐
erating can cause one or se veral wheels tolose
traction and theve hicle could then skid.
Do not use Active Dis tance Assi stDISTRONIC in
th ese situations. &
WARNING Risk of accident from acceler‐
ation or braking byActive Dis tance
Assi stDISTRONIC
Ac tive Dis tance Assi stDISTRONIC may accel‐
erate or brake in thefo llowing cases, for
ex ample:
R Ifth eve hicle pulls away using Active Dis‐
ta nce Assi stDISTRONIC.
R Ifth estored speed is called up and is
considerably faster or slo werth an the
cur rently driven speed.
R IfAc tive Dis tance Assi stDISTRONIC no
longer de tects a vehicle in front or does
not react toreleva nt objects. #
Alw ays carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times. #
Take into account the tra ffic situation
before calling up thestored speed. &
WARNING Risk of accident due toinsuf‐
fi cient decele ration byActive Dis tance
Assi stDISTRONIC
Ac tive Dis tance Assi stDISTRONIC brakes
yo ur vehicle with up to50% of the possible
deceleration. If this decele ration is not su ffi‐
cient, Active Dis tance Assi stDISTRONIC
alerts you with a visual and acoustic warning. #
Adjust your speed and main tain a suita‐
ble dis tance from theve hicle in front. #
Brake theve hicle yourself and/or take
ev asive action. &
WARNING Risk of accident if de tection
function of Active Dis tance Assi st
DISTRONIC is impaired
Ac tive Dis tance Assi stDISTRONIC does not
re act or has a limited reaction:
R when driving on a dif fere nt lane or when
ch anging lanes Driving and parking
231
hitch and
the electrical connection has been
cor rectly es tablished
In these situations the driver must inter vene
acco rdingly. &
WARNING Risk of accident in spi teof
ro ute-based speed adap tation
Ro ute-based speed adap tation can malfunc‐
tion or be temp orarily una vailable in thefo l‐
lowing situations:
R Ifth e driver does not follow the calcula‐
te dro ute
R If map data is not up-to-date or available
R Intheeve nt of roadwor ks
R In bad weather or road conditions
R Ifth e accelera tor pedal is depressed
R Intheeve nt of electronical lydispla yed
speed limitations #
Adapt the speed tothe traf fic situation. Setting
Active Di stance Assist DIST RONIC
driving styles
Re quirements:
R Active Dis tance Assi stDISTRONIC is acti va‐
te d.
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Driving 5
Active Distance Assist
Selecting a driving style #
Select DYNAMIC SELECT based ,Dynamic or
Comfort.
Setting speed adaptation #
Select When cornering etc. orFor limits .
When these functions are active, theve hicle
speed is adjus ted according toaro ute event
ahead or tospeed limits de tected byTraf fic
Sign Assi st.
% When one of thefo llowing sy stems is active,
th e de tected speed can be manually adop ted
as the speed limit:
R Active Dis tance Assi stDISTRONIC R
Variable limiter
Fu rther information about Active Dis tance
Assi stDISTRONIC (/ page 232).
% Further information on speed adap tation
(/ page 235).
Fu nction of Active Traf fic Jam Assist
Ac tive Traf fic Jam Assi sthelps you when in traf‐
fi c jams on multi-lane roads with separate car ria‐
ge wa ys by automatically pulling away within
60 seconds and with moderate steering
manoeuvres. It orients itself using theve hicle in
front and lane markings. Active Traf fic Jam
Assi stautomatically main tains a safe dis tance
from theve hicle in front and vehicles cutting in.
Ac tive Traf fic Jam Assi strequ iresyou, as the
driver, tokeep your hands on thesteering wheel
at all times so that you are able tointer vene at
any time tocor rect the course of theve hicle and
ke ep it in lane.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 219). 236
Driving and parking