Page 217 of 609

Setting
Active Brake Assi stMultimedia sy
stem:
0018 Vehicle 0019
k Assistance
0019 Active Brake Assist
Ve hicles without Driving Assistance Pack‐
age: the settings can be made af terst arting the
ve hicle.
Ve hicles with Driving Assistance Package:
th e settings can be made when the ignition is
switched on.
The following settings are available:
R Early
R Medium
R Late 0007
Select a setting.
0009 Your selection is retained when theve hicle is
next star ted.
Deactivating Active Brake Assi st
0009 It is recommended that you alw ays lea ve
Ac tive Brake Assi stactivated. 0007
Select Off.
The dis tance warning function and the auton‐
omous braking function are deactivated.
Ve hicles without Driving Assistance Pack‐
age: when theve hicle is next star ted, the
medium setting is auto matically selected.
Ve hicles with Driving Assistance Pack‐
age: Evasi veSteering Assist is not available.
When the ignition is next star ted, the
medium setting is selected auto maticallyand
Evasive Steering Assist is available.
0009 IfAc tive Brake Assi stis deactivated, the
00D4 symbol appears inthest atus bar of the
multifunction displa y. Fu
nction of Adaptive Brake Lights Ad
aptive Brake Lights warnfollowing traf fic in an
emergency braking situation wi th thefo llowing
actions:
R Byflashing the brake lamps
R By activating the hazard warning lights If
th eve hicle is braked sharply from speeds
abo ve50 km/h, the brake lamps flash rapidl y.
This pr ovides traf fic tr avelling behind you with an
ev en more noticeable warning.
If th eve hicle is tr avelling at speeds of more than
70 km/h at the beginning of the brake applica‐
tion, the hazard warning lights switch on once
th eve hicle is stationar y.When you pull away
again, the hazard warning lights will switch off
automatically at appr oximately 10km/h. Yo u
can also switch off the hazard warning lights
using the hazard warning button. Cruise control and limiter
Fu
nction of cruise control
Cruise cont rolre gulates the speed totheva lue
selec tedby the driver.
If yo u accelerate toove rtake, forex ample, the
st ored speed is not dele ted. If youre mo veyour
fo ot from the accelera tor pedal af terov ertaking,
cruise control will resume speed regulation back
to thestored speed.
Cruise contro l is operated using the cor respond‐
ing steering wheel buttons. You can store any 214
Driving and pa rking
Page 218 of 609

speed abo
ve20 km/h up tothe maximum speed
or up tothe set winter tyre limit.
If yo ufa ilto adapt your driving style, cruise con‐
trol can neither reduce therisk of an accident
nor override the la wsof ph ysics. It cannot take
into account road, weather or traf fic conditions.
Cruise control is only an aid. You are responsible
fo r maintaining a safe dis tance totheve hicle in
front, forve hicle speed, for braking in good time
and forst ay ing in lane.
Displa yson the multifunction display
The status of cruise control and thestored
speed are shown in the multifunction displa y. 1
Cruise cont rol is selec ted
2 Speed is sa ved, cruise control is deactivated
3 Speed is sa ved, cruise control is activated
0009 The segments extending from the cur rent
st ored speed tothe end of the scale, or to
th e set winter tyre limit, light up in the
speedome ter.
Sy stem limitations
Cruise control may be unable tomaintain the
st ored speed on uphill gradients. The stored
speed is resumed when the gradient evens out.
Change into a lo werge ar in good time on long
and steep downhill gradients. Take particular no
te ofthis when driving a laden vehicle. By
doing so, you will make use of the engine's brak‐
ing ef fect. This relie vesth e load on the brake
sy stem and pr events the brakes from overheat‐
ing and wearing tooqu ickl y.
Do not use cruise control in thefo llowing situa‐
tions:
R In traf fic situations whi chrequ ire frequent
ch anges of speed, e.g. in heavy traf fic, on
winding roads.
R On slippe ryroads. Accelerating can cause
th e drive wheels tolose traction and the
ve hicle could then skid.
R Ifyo u are driving when visibility is poor.
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 speed limits, e.g. in built-up
areas.
R Perm anen t:for long-term speed restrictions,
e.g. when driving in winter tyre mode. Driving and pa
rking 215
Page 219 of 609

The
variable limiter is operated using the cor re‐
sponding steering wheel buttons. You can store
any speed abo ve20 km/h up tothe maximum
speed or up tothe set winter tyre limit. You can
also per form settings while theve hicle is station‐
ary if theve hicle has been star ted.
If yo ufa ilto adapt your driving style, the limiter
can neither reduce therisk of an accident nor
ove rride the la wsof ph ysics. It cannot take into
account road, weather or traf fic conditions. The
limiter is only an aid. You are responsible for
maintaining a safe dis tance totheve hicle in
front, forve hicle speed, for braking in good time
and forst ay ing in lane.
Displa ysinthe instrument display
The status of the limiter and thestored speed
are shown in the multifunction displa y. 1
Limiter is selected
2 Speed is stored, limiter is deactivated
3 Speed is stored, limiter is activated
0009 The segments in the speedome ter light up,
up tothe cur rently stored speed.
0009 When the driving speed is greater than the
st ored speed, display 3flashes.
Kickd own
If yo u depress the accelerator pedal be yond the
pressure point (kickdown), the limiter switches
to passive mode. The Limiter passivemessage
appears in the multifunction displa y.Af
ter completion of kickdown, theva riable lim‐
iter is activated again in thefo llowing situations:
R Ifth e driven speed drops below thestored
speed.
R Ifth estored speed is called up.
R Ifyo ustore a new speed.
Operating cruise control or theva riable lim‐
iter 000A
WARNING Risk of accident due tostored
speed
If yo u call up thestored speed and this is
lo we rth an your cur rent speed, theve hicle
decelerates. 0007
Take into account the tra ffic situation
before calling up thestored speed. Re
quirements:
Cruise control
R Cruise control is selected.
R ESP ®
must be activated, but not inter vening.
R The driven speed is at least 20 km/h. 216
Driving and pa rking
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R
The transmission is in position 005B.
Va riable limiter:
R The vehicle has been star ted.
R The variable limiter is selec ted.
Switching between cruise control and the
va riable limi ter 0007
Toselect cruise control: pressrocker
switch 1up. 0007
Toselect theva riable limi ter: press rocker
switch 1down.
0009 Vehicles with Active Dis tance Assi st
DISTRONIC: theva riable limiter is selec ted
by a dif fere nt button (0013 page 220).
Ac tivating cruise control or the variable lim‐
iter 0007
Press rocker switch 2up (SET+) or down
(SET-).
The cur rent speed is stored and maintained
by theve hicle (cruise contro l) or limited (vari‐
able limiter) when you take your foot off the
accelerator pedal.
or 0007
Press rocker switch 3up (RES).
The last stored speed is called up and the
ve hicle maintains this speed (cruise control)
or does not exceed it (limiter).
If th e last stored speed has pr eviously been
dele ted, the cur rently driven speed is stored. 0009
When you swit choff theve hicle, the last
speed stored is cleared.
When you activate cruise cont rol or Active
Dis tance Assi stDISTRONIC, the last speed
st ored forth eva riable limiter is cleared.
Increasing/decreasing thesto red speed 0007
Press rocker switch 2up/down tothe pres‐
sure point.
The stored speed is increased or reduced by
1 km/h.
or 0007
Press and hold rocker switch 2up/down to
th e pressure point.
The stored speed is increased or reduced in
increments of 1 km/h.
or 0007
Press rocker switch 2beyond the pressure
point.
The stored speed is increased or reduced by
10 km/h.
or Driving and pa
rking 217
Page 221 of 609

0007
Press and hold rocker switch 2beyond the
pressure point.
The stored speed is increased or reduced in
increments of 10km/h.
or 0007
Accelerate theve hicle tothe desired speed. 0007
Press rocker switch 2up.
Ad opting the de tected speed
If cruise control/ variable limiter is activated and
Tr af fic Sign Assi sthas de tected a speed restric‐
tion sign wi tha maximum permissible speed and
th is is displa yed in the instrument clus ter: 0007
Press rocker switch 3up.
The maximum permissible speed shown by
th e traf fic sign is stored and theve hicle
maintains or does not exceed this speed.
Deactivating cruise control or theva riable
limi ter 0007
Press rocker switch 3down (CNCL).
0009 Ifyo u brake, deactivate ESP ®
or if ESP ®
inter venes, cruise control is deacti vated. The
va riable limiter is not deactivated. 0009
When you swit choff theve hicle, the last
speed stored is cleared.
When you select cruise cont rol or Active Dis‐
ta nce Assi stDISTRONIC, the last speed
st ored forth eva riable limiter is cleared.
Pe rm anent limi ter
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 toava lue
between 160 km/h and 240 km/h in the multi‐
media sy stem (0013 page218).
Shortly before the set speed is reached, it
appears in the multifunction displa y.When you
confirm the message with 0038, display mes‐
sages no longer appear until you swit choff the
ve 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 speed limitation for winter tyres
Multimedia sy stem:
0018 Vehicle 0019
î Vehicle settings
0019 Winter tyres limit 0007
Select a speed or deactivate the function. 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 218
Driving and pa rking
Page 222 of 609

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 on thesteering
wheel on vehicles without the Driving Assis tance
Pa ckage, in thera nge between 20 km/h and
200 km/h and, on vehicles with the Driving
Assis tance Package, in thera nge between
20 km/h and 210 km/h.
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) (0013 page178)
R Vehicles with Driving Assistance Pack‐
age: reacts tostationary vehicles de tected in
urban speed ranges (e xcept bicycles and
mo torcyc les).
R Initiates acceleration tothestored speed if
th e turn signal indicator is switched on to
ch ange totheov ertak ing lane.
R Vehicles with Driving Assistance Pack‐
age: take s one-sided overtaking restrictions
into account on mo torw ays or on multi-lane ro
ads with separate car riag ewa ys(countr y-
dependent).
Ve hicles with Active Parking Assist and Driv‐
ing Assistance Package: ifth eve hicle has
been braked toast andstill on multi-lane, stru c‐
tural lyseparate car riag ew aysby Active Dis tance
Assi stDISTRONIC, it can au tomatically follow
th eve hicle in front driving off again within 30
seconds. If a critical situation is de tected when
driving off, a visual and acoustic warning is given
indicating that the driver must now take control
of theve hicle. The vehicle is not accelerated any
fur ther.
Ac tive Dis tance Assi stDISTRONIC is only an aid.
The driver is responsible forke eping a safe dis‐
ta nce totheve hicle in front, forve hicle speed
and for braking in good time.
Sy stem limitations
The sy stem may be impaired or may not function
in thefo llowing ins tances:
R In sno w,rain, fog, heavy spr ay, if there is
gl are, in direct sunlight or in great lyvarying
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. 000A
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. Driving and pa
rking 219
Page 223 of 609

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. 0007
Alw ays carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times. 0007
Take into account the tra ffic situation
before calling up thestored speed. 000A
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 maximum
possible deceleration. If this decele ration is
not su fficient, Active Dis tance Assi st
DISTRONIC alerts you with a visual and
acoustic warning. 0007
Inthese cases, adjust your speed and
ke ep a suf ficient di stance. 0007
Brake theve hicle yourself and/or take
ev asive action. 000A
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
R topedestrians, animals, bicycles or sta‐
tionary vehicles, or unexpected obs tacles
R tocompl extraf fic conditions
R tooncoming vehicles and crossing traf fic
As a result, Active Dis tance Assi st
DISTRONIC may nei ther give warnings nor
inter vene in su chsituations. 0007
Alw ays obser vethe tra ffic conditions
carefully and react accordin gly. Operating
Active Di stance Assist DIST RONIC
Re quirements:
R The vehicle has been star ted.
R The elect ric pa rking brake is released.
R ESP ®
is activated and is not inter vening.
R The transmission is in position 005B.
R All doors and the bonn etare closed.
R Check of thera dar sensor sy stem has been
successfully comple ted.
R Parking Assist PARKTRONIC is not being
used topark theve hicle or toexit from a
parking space.
R The vehicle does not skid. 220
Driving and parking
Page 224 of 609

Switching between
Active Di stance Assist
DISTRO NIC and the limiter 0007
Press button 1.
Ac tivating the variable limi ter or Active Dis‐
tance Assi stDISTRONIC 0007
Toactivate with out astored speed: press
rock er switch 3up (SET+) or down (SET-),
or press rocker switch 4up. Remo veyour fo
ot from the accelerator pedal (Active Dis‐
ta nce Assi stDISTRONIC).
The cur rent driven speed is stored and main‐
ta ined (Active Dis tance Assi stDISTRONIC) or
limited (variable limiter) bytheve hicle.
or 0007
Toactivate with ast ored speed: press
rock er switch 4up. Remo veyour foot from
th e accelerator pedal (Active Dis tance Assi st
DISTRONIC).
0009 Ifrock er switch 4is pressed up again af ter
activation with a stored speed, Active Dis‐
ta nce Assi stDISTRONIC or theva riable lim‐
iter is activated with the speed restriction
displ ayed in the instrument clus ter.
Ac cepting the displa yed speed restriction
when Distance Assist DISTRONIC or the lim‐
iter is activated 0007
Press rocker switch 4up (RES).
The speed limit displa yed in the instrument
clus ter is adopte d asthestored speed. The
ve hicle adapts its speed tothat of theve hicle
in front, but only up tothestored speed. Pulling
away with Active Di stance Assist
DISTRO NIC 0007
Remo veyour foot from the brake pedal and
activate Active Dis tance Assi stDISTRONIC. 0007
Press rocker switch 4(RES) up.
or 0007
Depress the accelerator pedal briefly and
fi rm ly.
The functions of Active Dis tance Assi st
DISTRONIC continue tobe car ried out.
Deactivating Active Di stance Assist
DISTRO NIC 000A
WARNING Risk of accident due toActive
Dis tance Assi stDISTRONIC 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 Assi st
DISTRONIC only, theve hicle can rollaw ay. 0007
Alw ays deactivate Active Dis tance
Assi stDISTRONIC and secure theve hi‐ Driving and parking
221