2018 MERCEDES-BENZ C-CLASS COUPE Owners Manual

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. 206
Driving and parking

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
207

cle
topreve nt it from rolling away
before you lea vethe driver's seat. 0007
Press rocker switch 4down (CNCL).
0009 Ifyo u brake, deactivate ESP ®
or if ESP ®
inter venes, Active Dis tance Assi st
DISTRONIC is deacti vated.
Increasing or reducing the speed 0007
Press rocker switch 3up (SET+) or down
(SET-) tothe pressure point.
The stored speed is increased or reduced by
1 km/h.
or 0007
Press and hold rocker switch 3up/down to
th e pressure point.
The stored speed is increased or reduced in
increments of 1 km/h.
or 0007
Press rocker switch 3beyond the pressure
point.
The stored speed is increased or reduced by
10 km/h.
or 0007
Press and hold rocker switch 3beyond the
pressure point.
The stored speed is increased or reduced in
increments of 10km/h.
Re ducing or inc reasing the specified dis‐
tance from theve hicle in front 0007
Toincrease the specified distance: press
rock er switch 2down. 0007
Toreduce the speci fied distance: press
rock er switch 2up. Fu
nction of Active Speed Limit Assi st If a
change in the speed limit is de tected and
Ac tive Dis tance Assi stDISTRONIC is acti vated,
Ac tive Dis tance Assi stDISTRONIC adapts this
new speed as thestored speed.
The driven speed is adjus ted when theve hicle is
le ve l with the traf fic sign at the latest. In the
case of signs indicating entry into an urban area,
th e speed is adap ted according tothe speed 208
Driving and parking

permitted within
the urban area. The speed limit
display in the instrument display is alw ays upda‐
te d when theve hicle is le vel with the tra ffic sign.
If th ere is no speed restriction on an unlimi ted
st re tch of road (e.g. on a mo torw ay),th ere com‐
mended speed is adop ted as thestored speed.
The sy stem uses the speed stored on an unlimi‐
te dstre tch of road as there commended speed.
If yo u do not alter thestored speed on an unlimi‐
te dstre tch of road, there commended speed is
13 0 km/h.
If Ac tive Dis tance Assi stDISTRONIC has been
put into passi vemode bypressing the accelera‐
to r pedal, only speed limits which are higher
th an the set speed are adop ted.
Ac tive Speed Limit Assi stis only an aid. The
driver is responsible forke eping a safe dis tance
to theve hicle in front, forve hicle speed and for
braking in good time. The maximum permissible
speed also depends on factors su chasthero ad
sur face and traf fic conditions.
Sy stem limitations
Te mp orary speed restrictions (e.g. for a cer tain
time or due towe ather conditions) cannot be proper
ly detected bythe sy stem. The maximum
permissible speed applying for a vehicle with a
trailer is not de tected bythe sy stem. In these sit‐
uations you must adjust your speed yourself. 000A
WARNING Risk of accident due toActive
Speed Limit Assi stadapting theve hicle's
speed
The speed adop tedby Active Speed Limit
Assi stmay be too high or incor rect in some
individual cases, su chas:
R Inthewe t or in fog
R When towing a trailer 0007
Ensure that the driven speed complies
with traf fic re gulations. 0007
Adjust the driving speed tosuit cur rent
traf fic and weather conditions. Fu
nction of route-based speed adaptation 0009
The following function is countr y-dependent
and only available in conjunction with the
Driving Assi stance Package. When Dis
tance Assi stDISTRONIC is acti ve,the
function adju ststh e speed depending on the
ro ute events ahead. Depending on the drive pro‐
gram selected, theve hicle negotiates thero ute
eve nt ahead in a fuel-s aving, com fortable or
dynamic manner. When thero ute event has been
passed, theve hicle accelerates again tothe
st ored speed. The set dis tance totheve hicle in
front, vehicles de tected ahead and speed restric‐
tions ahead are take n into account.
Ro ute-based speed adjustment can byconfig‐
ured in the multimedia sy stem
(0013 page210).
Ro ute events ahead are:
R Bends
R T-junctions, roundabouts and tollst ations
R Turns and exits
R Traf fic jams ahead (only wi thLive Traf fic
( 0013 page 323))
0009 When theto llst ation is reached, Active Dis‐
ta nce Assi stDISTRONIC adopts the speed as
th estored speed. Driving and parking
209

Also,
the speed is reduced if the turn signal to
ch ange lanes is swit ched on and one of thefo l‐
lowing situations is de tected:
R Turning off at junctions
R Driving on slowing-down lanes
R Driving on lanes adjacent toslowing-down
lanes
The driver is responsible forch oosing theright
speed and observing other road users. This
applies in particular tojunctions, roundabouts
and traf fic lights, as route-based speed adap ta‐
tion does not brake theve hicle toast andstill.
When route guidance is active, thefirs t speed
adjustment is car ried out automaticall y.Ifthe
turn signal indica tor is switched on, the selected
ro ute is confirmed and fur ther speed adjustment
is activated.
Speed adjustment is cancelled in thefo llowing
cases:
R Ifth e turn signal indicator is switched off
before thero ute event.
R Ifth e driver depresses the accelera tor or
brake pedal during the process. Sy
stem limitations
Ro ute-based speed adap tation does not take
ri ght of wayre gulations into account. The driver
is responsible for complying with road traf fic
re gulations and driving at a suitable speed.
In dif ficult conditions (e.g. unclear roads, nar row
lanes, wetro ad sur faces, snow or ice) or when
driving wi tha trailer, the speed adjustment made
by the sy stem may not alw ays be suitable. In
th ese situations the driver must inter vene
acco rding ly. 000A
WARNING Risk of accident in spi teof
ro ute-based speed adjustment
Ro ute-based speed adjustment might mal‐
function or be temp orarily una vailable in the
fo llowing situations:
R If map data is not up todate or available
R Ifyo u do not follow the selected route
guidance
R Ifth e set route is re-planned
R Inroad con stru ction areas R
When towing a trailer
R In bad weather or road conditions
R Ifth e accelera tor pedal is depressed 0007
Adjust the speed tothe traf fic situation. Setting
route-based speed adjustment Re
quirements:
R Active Dis tance Assi stDISTRONIC is acti va‐
te d.
Multimedia sy stem:
0018 Vehicle 0019
k Assistance
0019 Speed adjustment 0007
Activate 0073or deacti vate 0053 the function. Ac
tive Steering Assist Fu
nction of Active Steering Assist
0009 Active Steering Assist is count ry-dependent
and only available forve hicles with the Driv‐
ing Assis tance Package. 210
Driving and pa rking

Ac
tive Steering Assist is operational at speeds
up to210 km/h and helps youto stay inthe
centre of the lane bymeans of moderate steer‐
ing inter ventions. It uses theve hicle in front and
th e lane markings as a refere nce depending on
th e driven speed.
When the sy stem is actively steering, theè
symbol is shown in green in the multifunction
displa y.
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 active topassive status, theè symbol is
shown as enlar ged and flashes yello w. Once the
sy stem is passive, theè symbol is shown as
gr ey inthe multifunction displa y.
Ste ering and touch de tection
The driver is requiredtokeep their hands on the
st eering wheel at all times and be able tointer‐
ve ne at any time tocor rect the course of the
ve hicle and keep it in lane. The driver must
ex pect a change from active topassive mode or
vice versa at any time. If
th e sy stem reaches a sy stem limitation or the
driver has not steered theve hicle for a consider‐
able period of time or has remo vedth eir hands
from thesteering wheel, the sy stem will,
depending on the situation, alert the driver
either with a visual warning or a visual and
acoustic warning. Display 1appears in the mul‐
tifunction displa y.
If th e driver does not steer theve hicle over a
long period, or has not take n hold of thesteering
wheel, a repeated warning tone sounds in addi‐
tion tothe visual warning message (depending
on the count ry). The
warning message does not appear or disap‐
pears if one of thefo llowing conditions are me t:
R The driver steers theve hicle.
R The driver presses a steering wheel button or
operates Touch Control.
Ac tive Steering Assist is only an aid. The driver is
re sponsible forth e dis tance totheve hicle in
front, forve hicle speed, for braking in good time
and forst ay ing in lane. Before changing lanes,
th e driver must make sure that the neighbouring
lane is free (glance over the shoulder).
Sy stem limitations
Ac tive Steering Assist has a limited steering tor‐
qu efo r lateral guidance. In some cases, the
st eering inter vention is not su fficient tokeep the
ve hicle in the lane or todrive past exits.
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, direct sunlight, greatlyvarying light
conditions, reflections or stro ng shado wson
th e car riag ew ay.
R Insuf ficient road illumination. Driving and parking
211

R
The windscreen in the area of the camera is
dirty, mis ted up, damaged or co vered.
R Absence of lane markings, or se veral unclear
lane markings, or if the markings change rap‐
idl y.
R The dis tance totheve hicle in front is too
small and the lane markings thus cannot be
de tected.
R The road is nar row and winding.
R Obs tacles on the lane or projecting out into
th e lane.
The sy stem does not pr ovide assis tance in the
fo llowing conditions:
R On tight bends, junctions, tollst ations,
ro undabouts and when turning.
R When towing a trailer.
R When actively changing lane without swit ch‐
ing on the turn signal.
R When the tyre pressure is too lo w. 000A
WARNING Risk of accident if Active
St eering Assist unexpectedly stops func‐
tioning
If th e sy stem limitations of Active Steering
Assist are reached there is no guarantee that
th e sy stem will remain active or will keep the
ve hicle in lane. 0007
Alw ayske ep your hands on thesteering
wheel and obser vethe tra ffic carefull y. 0007
Alw aysst eer theve hicle paying atten‐
tion totraf fic conditions. 000A
WARNING Risk of accident if Active
St eering Assist unexpectedly inter venes
A malfunction in the de tection of lane mark‐
ings and objects can occu r.
This could cause unexpected steering inter‐
ve ntion. 0007
Steer according totraf fic conditions. Ac
tivating Active Steering Assist
Re quirements:
R ESP ®
must be activated, but not inter vening.
R Active Dis tance Assi stDISTRONIC is acti va‐
te d. 0007
If indicator lamp 1is off: press button 2.212
Driving and pa rking

Fu
nction of Active Lane Change Assi st
0009 The following function is countr y-dependent
and only available in conjunction with the
Driving Assi stance Package.
Ac tive Lane Change Assi stsupports the driver
when changing lanes byapplying steering torque
if th e driver operates a turn signal.
Assis tance when changing lanes is pr ovided if all
th efo llowing conditions are me t:
R You are driving on a mo torw ay orroad with
multiple lanes in the direction of tr avel.
R The neighbouring lane is separated bya bro‐
ke n lane ma rking.
R Novehicle is de tected in the adjacent lane.
R The driven speed is between 80 km/h and
18 0 km/h.
R Active Lane Change Assi stis switched on in
th e multimedia sy stem.
R Active Steering Assist is switched on and
active. If no
vehicle is de tected in the adjacent lane and
a lane change is permit ted, the lane change
begins. This is shown tothe driver with a green
ar row 2next tothesteering wheel symbol.
The Lane change to the left message also
appears, forex ample. If Active Lane Change
Assi sthas been activated with the turn signal
indicator but a lane change is not immediately
possible, a gr eyarrow 1appears next tothe
st eering wheel symbol, which remains green.
When the lane change assis tance starts, the turn
signal indicator is automatically activated beside
th e display in the multifunction displa y.
If th e assis tance graphic is shown when chang‐
ing lanes, the lane change display appears with an additional ar
rowpointing towa rdsth e adja‐
cent lane (0013 page214).
If a lane change is not possible, the ar row fa des
out af ter a few seconds and a new lane change
must be initiated. An immediate lane change is
on ly possible on mo torw ay sections without
speed limits.
If th e sy stem is impaired, Active Lane Change
Assi stmay be cancelled. If it is cancelled, the
Lane change cancelled message appears inthe
multifunction display and a warning tone sounds. 000A
WARNING Risk of accident from chang‐
ing lane toan occupied adjacent lane
Lane Chan geAssi stcannot al ways detect
clearly if the adjacent lane is free.
The lane change might be initiated although
th e adjacent lane is not free. 0007
Before changing lanes, make sure that
th e neighbouring lane is free and there
is no danger to otherroad users. 0007
Monitor the lane change. Driving and parking
213