%Ifyo ubr ake, deactivate ESP®or ifESP®
inter venes, cruise control is deacti vated.
When youswit choff theve hicle, the last
speed stored is cleared.
Setting the speed limit for winter tires
Multimedia sy stem:
, 9 H K L F O H.î 9 H K L F O H 6 H W W L Q J V. : L Q
W H U 7 L U H V / L P L W
#Select the speed or deactivate the function.
Ac tive Di stance Assist DI STRONIC
Function of Active Di stance Assist
DI STRO NIC
Ac tive Dis tance Assist DISTRONIC
RMaintainsthe set speed and accelera tes or
decelerates theve hicle if the dis tance from
th eve hicle in front permits.
RAssists youin main taining the dis tance from
th eve hicle in front and can bring your vehi‐
cle toast andstill if necessar y.
RBrakesyour vehicle with up to50 % of the
maximum possible braking po wer.If greater decelera
tion performance is requ ired, a vis‐
ual and acoustic warning is given and you
must then inter vene yourself.
RVe hicles with Driving Assistance Pack‐
age, Active Parking Assist and COMAND:
When driving in stop-s tart traf fic, the driver is
suppor tedby ex tended, au tomatic pulling
aw ay in traf fic jams.
RVe hicles with Driving Assistance Pack‐
age: Responds in urban speed ranges tosta‐
tionary vehicles (e xcept bicycles, mo torcy‐
cle sand pede strians) if conditions are suf fi‐
cient toenable de tection.
If yo ufa ilto adapt your driving style, Ac tive Dis‐
ta nce Assist DISTRONIC can nei ther reduce the
ri sk of an accident nor override the la wsof ph ys‐
ics. It cannot take into account road, weather or
traf fic conditions. Active Dis tance Assist
DIST
RONIC is only an aid. You are responsible
fo rth e dis tance totheve hicle in front, forve hi‐
cle speed, for braking in good time and forst ay ‐
ing in lane.
If all activation conditions are met, you can act i‐
va te Active Dis tance Assist DISTRONIC du ring a journ
eyor while stationar y.When Active Dis‐
ta nce Assist DISTRONIC is acti vated, a speed is
st ored which the driver can increase or reduce
at any time. The speed can be adjus ted between
15 mp h (20 km/h) and 120mp h(2 00 km/h).
Ve hicles with the Driving Assistance Pack‐
age: The speed can be adju sted between
15 mp h (20 km/h) and 130mp h(210 km/h).
Ve hicles with Driving Assistance Package,
Ac tive Park ing Assist and COMAND: Upto30
seconds af terst opping, theve hicle automatically
fo llo ws theve hicle ahead without the inter ven‐
tion of the driver. This is only possible if theve hi‐
cle is tr aveling on a free wayor ahigh-speed
majo rro ad. If an obs tacle is de tected in front of
th eve hicle during the driving-off procedure, a
ta ke ove rwa rning is given. Acceleration is
re duced, the driver is given a visual and acoustic
wa rning and must stop theve hicle before reach‐
ing the obs tacle or take eva sive action.
Ve hicles with the Driving Assistance Pa
ck‐
age
: In conjunction with navigation sy stems,
Ac tive Dis tance Assist DISTRONIC pr events pro‐
hibi tedove rtaking on theright at speeds over
50 mph (80 km/h) in right-hand traf fic and over‐
Driving and parking 17
7
Tips
Payparticula rattention in thefo llowing traf fic
situations. In such situations, brake if necessar y.
Ac tive Dis tance Assist DISTRONIC is then deacti‐
va ted:
RWhen cornering, entering and exiting a bend.
RWhen not driving in the center of the lane.
RWhen other vehicles are changing lane.
RIfth ere are nar rowvehicles.
RIfth ere are obs tacles and stationary vehi‐
cles.
RIf th ere are crossing vehicles, pedestrians,
mo torcyc lists or cyclists. Display of
Active Di stance Assist DI STRONIC
in the assistance graphic and in the speed‐
ome ter1Ve hicle ahead
2Dis tance indica tor
3Set specified di stance
4Yo ur vehicle
1Speed of vehicle ahead
2Stored speed
Displa ysinthe multifunction display
When activating Active Dis tance Assist
DISTRONIC or when changing thestored speed,
th e new stored speed is shown for around five
seconds in the multifunction display ç
50 mph (70 km/h).
When Active Dis tance Assist DISTRONIC is
acti ve,th e set stored speed is displa yed next to
th eç symbol. When dis tance control is
acti ve,th e symbol is shown in green.
Ve hicles with the Driving Assistance Pack‐
age: On free ways or high-speed major roads the
Driving and pa rking 17
9
çsymbol is displa yed cyclically when the
ve hicle is ready topull away.
Ve hicles with Active Speed Limit Assi st:If a
speed limit is au tomatical lyadop ted, this is
shown as thestored speed with theê sym‐
bol.
Operating Active Di stance Assist DI STRO NIC
&
WARNING Risk of accident if de tection
function of Active Dis tance Assist
DISTRONIC is impaire d
Ac tive Dis tance Assist DISTRONIC does not
re act:
RTo people or animals.
RTostationary obstacles on thero ad, e.g.
st opped or par kedve hicles (vehicles with‐
out the Driving Assis tance Package).
RTo stationary obstacles on thero ad, e.g.
st opped or par kedve hicles, if conditions
are not suf ficient toenable de tection
(vehicles wi th the Driving Assis tance
Pa ckage).
RTo oncoming vehicles and crossing traf‐
fi c.
Ac tive Dis tance Assist DISTRONIC can nei‐
th er give warnings nor inter vene in such sit‐
uations.
#Alw ays carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times.
& WARNING Risk of accident due tolimi‐
te d de tectability of road users and traf fic
situations
Ac tive Dis tance Assist DISTRONIC cannot
al wa ys clear lyidentify other road users and
complex traf fic situations.
In these conditions, Active Dis tance Assist
DISTRONIC may:
RGi ve an unnecessary warning and then
brake theve hicle.
RNeither give a warning nor inter vene.
RAc celerate or brake unexpectedly.
#Continue driving wi thcare and be ready
to brake, particular lyifAc tive Dis tance
Assist DISTRONIC warnsyo u.
&
WARNING Risk of accident from acceler‐
ation or braking byActive Dis tance
Assist DISTRONIC
Ac tive Dis tance Assist DISTRONIC may accel‐
erate or brake in thefo llowing cases, for
ex ample:
RIfth eve hicle pulls away using Active Dis‐
ta nce Assist DISTRONIC.
RIfth estored speed is called up and is
considerably faster or slo werth an the
cur rently driven speed.
RIfAc tive Dis tance Assist DISTRONIC 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.
18 0
Driving and pa rking
#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
Assist DISTRONIC
Ac tive Dis tance Assist DISTRONIC brakes
yo ur vehicle with up to50 % of the maximum
possible deceleration. If this decele ration is
not suff icient,Active Dis tance Assist
DISTRONIC alerts youwit h a visual and
acoustic warning.
#In these cases, adjust your speed and
ke ep a suf ficient dist ance.
#Braketheve hicle yourself and/or take
ev asive action.
&
WARNING Risk of accident due toActive
Dis tance Assist DISTRONIC still being
activated when you lea vethe driver's
seat
If yo u lea vethe driver's seat while theve hicle
is being braked byActive Dis tance Assist
DISTRONIC only, theve hicle can rollaw ay.
#Alw ays deactivate Active Dis tance
Assist DISTRONIC and secure theve hi‐
cle topreve nt it from rolling away
before you lea vethe driver's seat.
Re quirements:RThe vehicle's engine must be switched on.
RThe electric parking brake must be released.
RAc tive Parking Assist is not being used to
park theve hicle or toexit from a parking
space.
RESP®must be activated, but not inter vening.
RThe transmission must be in positionh.
RThe driver door, front passenger door and the
re ar doors must be closed.
RThe engine hood must be closed.
#Re mo veyour foot from the accelerator pedal.
#To store cur rent speed 2.
Yo ur vehicle adapts its speed tothat of the
ve hicle in front, but only up tothestored
speed.
or
#Call up stored speed 2.
Driving and parking 18
1
#OrOn vehicles with Driving Assistance
Pa ckage and Traf fic Sign Assis t:The dis‐
pla yed speed limit is adop ted, if available 2.
#Deactivate Active Dis tance Assist DISTRONIC
1.
#To inc rease 3orreduce 4the speed.
#To reduce 5or increase 6the specified
dis tance from theve hicle in front.
Pulling away wit hAc tive Di stance Assist
DI STRO NIC
Re quirement: a speed must ha vebeen pr evi‐
ously stored.
#Re mo veyour foot from the brake pedal.
#Brief lypull the cruise control le verto wa rds
yo u2.
or
#Ac celerate brie fly.
Yo ur vehicle pulls away and adapts its speed
to that of theve hicle in front. If no vehicle is
de tected in front, your vehicle accelerates to
th e set speed.
Ad opting the speed limit as thesto red speed
Re quirements:
RActive Speed Limit Assi stis activated in the
multimedia sy stem (→page 208).
RAc tive Dis tance Assist DISTRONIC is acti va‐
te d.
RThe sy stem de tects a traf fic sign indicating a
speed limit.
#Brie fly pull the cruise control le verto wa rds
yo u2.
The display ed speed limit is adop ted as the
st ored speed. Your vehicle adapts its speed
to that of theve hicle in front, but only up to
th estored speed. If Active Speed Limit Assi st
182
Driving and pa rking
is activated, any detected changes in the
speed limit are adop tedby the sy stem.
Collision warning
If Ac tive Dis tance Assist DISTRONIC is unable to
suf ficiently decele rate theve hicle in order to
pr eve nt it from approach ingtheve hicle in front,
yo uwill be warned visually and acousticall y.An
intermittent warning tone will then sound and
th e dis tance warning lamp will light up in the
instrument clus ter.
#Brake immediately in order toinc rease the
dis tance from theve hicle in front.
or
#Ta ke evasive action pr ovided it is safe todo
so.
Ac tive Steering Assist
Function of Active Steering Assist
Ac tive Steering Assist is only available for
ve hicles with the Driving Assistance Pack‐
age.
RAc tive Steering Assist is operational at
speeds up to130mp h(210 km/h) and helps yo
uto stay inthe center of the lane by
means of moderate steering inter ventions.
RIt uses theve hicle in front and the lane mark‐
ings as a refere nce depending on the driven
speed.
RAc tive Steering Assist requiresyou as the
driver, tokeep your hands on thesteering
wheel at all times so that you are able to
inter vene at any time tocor rect the course of
th eve hicle and keep it in lane.
RAc tive Steering Assist can be overridden at
any time bysteering theve hicle yourself.
RWhen the sy stem is actively steering, the
è symbol is shown in green in the multi‐
function displa y.
Sy stem limitations of Active Steering Assist
Ac tive Steering Assist has a limited steering tor‐
qu efo r lateral guidance. In some cases, the
st eering inter vention is not suff icienttokeep the
ve hicle in the lane.
If th e de tection of lane markings and vehicles
ahead is impaired, Active Steering Assist
switches topassive mode. The sy stem pr ovides
no support in this case. During the transition from
the active topassiv e
st at
us, theè sym‐
bol is shown as enlar ged and flashes yello w.
Once the sy stem is passive theè symbol is
shown as gr ayinthe multifunction displa y.
The sy stem may be impaired or may not function
in thefo llowing ins tances:
RIfth ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, or due tosno w,
ra in, fog or heavy spr ay.
RIfth ere is glare, e.g. from oncoming traf fic,
dire ct sunlight or reflection from other vehi‐
cles (e.g. if thero ad is wet).
RIfth e windshield is dirty, fogged up, damaged
or co vered, for ins tance byast icke r,in the
vicinity of the camera.
RIf no, or se veral, unclear lane markings are
present for one lane, e.g. in a construction
area.
RIf th e lane markings are wornaw ay, dark or
co vered up, e.g. bydirt or sno w.
RThe distance totheve hicle in front is too
small and the lane markings thus cannot be
de tected.
Driving and park ing18
3
display along with awarning tone prom pting you
to take control of theve hicle.
Ste ering and contact de tection
Ac tive Steering Assist requ ires you as the driver,
to keep your hands onthesteering wheel at all
times so that you are abletointer vene at any
time tocor rect the course of theve hicle and
ke ep it in lane. The driver must expect a change
from active topassive mode or vice versa at any
time.
If yo u are not steering yourself or ifyo u take
yo ur hands offthesteering wheel for a pro‐
longed period of time, the sy stem will, depend‐
ing on the situation, firs t alert youwit h a visual wa
rning. 1appears in the multifunction displa y.
If yo u are still not steering theve hicle yourself or
if yo u ha venot take n hold of thesteering wheel,
a wa rning tone sounds in addition tothewa rning
message toremind youto take control of the
ve hicle.
The warning message does not appear or disap‐
pears if one of thefo llowing conditions are me t:
RThe driversteers theve hicle.
RThe driver presses a steering wheel button or
operates Touch Control.
Fu nction of Active Eme rgency Stop Assist
If th e driver continues toigno rethe acoustic
wa rning of Active Lane Change Assi st,Ac tive
Dis tance Assist DISTRONIC reduces the speed.
If th e dr iver
still does n
otrespond, theve hicle is
decelerated in stages toast andstill.
The driver can cancel the deceleration at any
time byper form ing one of thefo llowing actions:
RSt eering
RBraking or accelerating
RPressing a steering wheel button or operat‐
ing Touch Control
RAc tivating or deacti vating Active Steering
Assist or Dis tance Assist DISTRONIC
The driver must beready totake control of the
ve hicle at any time.
Information on Hill Start Assist
Hill Start Assist holds theve hicle for a short
time when pulling away on a hill under thefo l‐
lowing conditions:
RThe transmission is in position hork.
RThe elect ric park ing brake is released.
This gives you enough time tomo veyour foot
from the brake pedal tothe accelerator pedal
and depress it before theve hicle begins toroll.
&
WARNING Risk of accident and injury
caused bytheve hicle rolling away
Af ter a short time, Hill Start Assist no longe r
holds theve hicle and it can rollaw ay.
#Therefore, swiftly mo veyour foot from
th e brake pedal tothe accelerator
Driving and parking 18
5
pedal. Never attem pttolea vetheve hi‐
cle if it is being held byHill Start Assist.
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. when pulling away on steep slopes.
Sy stem limitations
The incline must not be greaterth an 30%.
Ac tivating/deactivating the HOLD function
&
WARNING Risk of an accident due tothe
HOLD function being activated when you
lea vetheve hicle
If yo u lea vetheve hicle while only the HOLD
function is braking theve hicle, theve hicle
can rollaw ay inthefo llowing situations:
RIf th ere is a malfunction in the sy stem or
in the po wer supp ly.
RIf th e HOLD function is deactivated by
depressing the accelera tor pedal or the
brake pedal, e.g. byave hicle occupant.
RIfth e electrics in the engine compart‐
ment, the battery or the fuses are tam‐
pered with or if the battery is disconnec‐
te d.
#Alw ays deactivate the HOLD function
and secure theve hicle against rolling
aw ay before leaving theve hicle.
* NO
TEDama gefrom au tomatic braking
When Active Brake Assi st,Ac tive Dis tance
Assist DISTRONIC or the HOLD function are
activated, theve hicle brakes autonomously
in cer tain situations.
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations:
#During towing
#In a car wash
Requirements:RThe vehicle is stationar y.
RThe driver's door is closed or the seat belt on
th e driver's side is fastened.
RThe engine is running or has been au tomati‐
cally switched off bythe ECO start/ stop
function.
RThe electric parking brake is released.
RAc tive Dis tance Assist DISTRONIC is not acti‐
va ted.
RThe transmission is in position h,kori.
Ac tivating the HOLD function
#Dep ress the brake pedal and af ter a short
time depress fur ther until theë display
appears in the multifunction displa y.
#Release the brake pedal.
Deactivating the HOLD function
#Depress the accelerator pedal topull away.
or
#Depress the brake pedal until theë dis‐
play disappears from the multifunction dis‐
pla y.
186
Driving and pa rking