lock MERCEDES-BENZ C-CLASS CABRIOLET 2018 Service Manual

Overview of driving sy
stems and driving
saf ety sy stems In
this section, you will find information about
th efo llowing driving sy stems and driving saf ety
sy stems:
R 360° Camera (0013 page 223)
R ABS (A nti-lock Braking System)
(0013 page184)
R Active Dis tance Assi stDISTRONIC
(0013 page 199)
R Adaptive brake lights (0013 page195)
R AIRMATIC (0013 page 213)
R Active Brake Assi st (0013 page189)
R Active Lane Keeping Assist (0013 page240)
R ATTENTION ASSIST (0013 page 233)
R BAS (Bra keAssist System) (0013 page185)
R Hill Start Assist (0013 page211)
R DYNA MIC BODY CONT ROL (0013 page213)
R EBD ( Electronic Brakeforce Distribution)
(0013 page188) R
ESP ®
(Electronic Stability Program)
(0013 page185)
R Active Speed Limit Assi st (0013 page 203)
R HOLD function (0013 page211)
R STEER CONTROL (0013 page 189)
R Active Steering Assist (0013 page 205)
R Speed limiter (0013 page196)
R Active Parking Assist (0013 page 227)
R Parking Assist PARKTRONIC
(0013 page216)
R Reversing camera (0013 page 220)
R Cruise control (0013 page195)
R Function of Blind Spot Assi stand Active Blind
Spot Assi stwith exitwa rning
(0013 page 237)
R Traf fic Sign Assi st (0013 page 235) Fu
nction of ABS (Anti-lock Braking Sy stem) ABS
regulates the brake pressure in critical driv‐
ing situations:
R During braking, e.g. at full brake application
or insuf ficient tyre traction, the wheels are
pr eve nted from lo cking.
R Vehicle steerability while braking is ensured.
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.
Sy stem limitations
R ABS is active from speeds of appr ox.
8 km/h.
R ABS may be impai red or may not function if a
malfunction has occur red and theye l‐
low 0025 ABSwarning lamp lights up contin‐
uously in the instrument clus ter af terthe
engine is star ted. 184
Driving and pa rking

Fu
nction of BAS (Brake Assist Sy stem) 000A
WARNING Risk of an accident caused by
a malfunction in BAS (Brake Assi stSys‐
te m)
If BA S is malfunctioning, the braking dis tance
in an emergency braking situation is
increased. 0007
Dep ress the brake pedal with full force
in emer gency braking situations. ABS
pr eve nts the wheels from locking. BA
S suppo rts yo ur 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) 000A
WARNING Risk of skidding if ESP ®
is
malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ry
out vehicle stabilisation. In addition, other
driving saf ety sy stems are switched off. 0007
Drive on carefull y. 0007
Have ESP ®
ch ecked at a qualified spe‐
cialist workshop. 000A
WARNING Risk of skidding if ESP ®
is
deactivated
If yo u deactivate ESP ®
, ESP ®
cannot car ry
out vehicle stabilisation. 0007
ESP ®
should on lybe deactivated in the
fo llowing situations. Mercedes‑AMG
vehicles: always obser vethe
no tes in the Supplement. Otherwise, you may
fa ilto recognise dangers. ESP
®
can moni tor 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.
R Vehicles with trailer hitch: in trailer opera‐
tion from speeds of 65 km/h, if theve hicle/
trailer combination begins tosw ay from side
to side.
R Instro ng side winds when you are driving
fa ster than 80 km/h.
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.
ESP ®
is deactivated if the00BB ESP®
OFF warn‐
ing lamp lights up continuously in the instrument
clus ter:
R Driving stability will no lon ger be impr oved. Driving and parking
18 5

Setting
the sensitivity of Active Lane Keep‐
ing Assist
Multimedia sy stem:
0018 Vehicle 0019
k Assistance
0019 Act. Lane Keep. Assist 0007
Select a setting.
Ac tivating/deactivating the warning 0007
Swit chLane depart. warning on0073 or off 0053.
Yo u do not recei veany warning when leaving
a lane if the lane keeping warning sy stem is
deactivated. Tr
ailer hitch Tr
ailer operation no tesMercedes‑AMG
vehicles: always obser vethe
no tes in the Supplement. Otherwise, you may
fa ilto recognise dangers.
Obser vethefo llowing no tes on theto ngue
we ight:
R do not use a tongue weight that exceeds or
fa lls below the permissible tongue weight R
use a tongue weight as close as possible to
th e maximum tongue weight
Do not exceed thefo llowing values:
R permissible towing capacity
R permissible rear axle load of theto wing vehi‐
cle
R permissible gross mass of theto wing vehicle
R permissible gross mass of the trailer
R maximum permissible speed of the trailer
Ensure thefo llowing before starting a journey:
R the tyre pressure on there ar axle of theto w‐
ing vehicle is set for a maximum load
R the lighting of the connected trailer is opera‐
tional
R vehicles without LED headlamps or MUL‐
TIBEAM LED headlamps: the headlamps
ha ve been set cor rectly
In theeve nt of increased rear axle load, the car/
trailer combination may not exceed a maximum
speed of 100 km/h forre asons concerning the
operating permit. This also applies in countri esin which
the permissible maximum speed for
car/trailer combinations is ab ove100 km/h. Fo
lding the ball neck out/in 000A
WARNING Risk of accident due tothe
ball neck not being engaged
If th e ball neck is not engaged, the trailer
may come loose. 0007
Alw ays engage the ball neck as descri‐
bed. 000A
WARNING Risk of inju ryfrom ball neck
swinging outwards
The ball neck may swing outwards when
unlo cking or when it has not been properly
engaged.
There is a risk of injury within the ball neck's
ra nge of mo vement! 0007
Unlock the ball neck only when its
ra nge of mo vement is unobstructed. Driving and parking
243

0007
Alw ays be sure the ball neck is engaged
when folding in wards. Re
quirements:
R The transmission has been shif tedto posi‐
tion 005Dor005C.
R The range of mo vement is clear.
R Only when folding in: The trailer cables or
adap ter plugs are remo ved. Fo
lding the ball neck out 0007
Pull release switch 2until the ball neck
unloc ks.
The ball neck will fold out from under the
re ar bumper.
Indicator lamp 1will flash. 0007
Pull the ball neck in the direction of the
ar row until it en gage s audibly in a vertical
position.
Indicator lamp 1onthe ball neck release
switch will go out.
If th e ball neck is not securely loc ked in
place, theCheck trailer hitch lockdisplay
message will appear on the multifunction dis‐
pla y. 244
Driving and pa rking

0007
Remo vethe co ver from the ball head and
st ore it in a safe place.
Make sure that the ball on the ball neck is clean.
Check that it is either greased or dr y (grease-
free), depending on the instructions forthe
traile r.
Fo lding the ball neck in 0007
Pull release switch 2until the ball neck
unloc ks.
The ball neck will fold up under there ar
bumper.
Indicator lamp 1will flash. 0007
Push the ball neck in the direction of the
ar row until it en gage s audibly behind the
bumper.
Indicator lamp 1will go out and the mes‐
sage on the multifunction display will disap‐
pear.
Obser vethe information on the displa yson the
instrument clus ter:
R Warning and indicator lamps
(0013 page 527)
R Display messages (0013 page471) Cou
pling up / uncoupling a trailer 000A
WARNING Risk of inju ryfrom theve hicle
le ve l being changed
Ve hicles with le vel control sy stem: the
ve hicle le vel may be changed unin tentional ly,
e.g. by ot her persons. You may become trap‐
ped if you couple up or uncouple a trailer
while theve hicle le vel is changing. In addi‐
tion, other people could become trapped if
th eir limbs are between theve hicle body and
th e tyres or underneath theve hicle.
When coupling up or uncoupling a trailer,
make sure that: 0007
The doors or tailgate are not opened or
closed. 0007
You do not initiate the le vel control sys‐
te m and do not operate theDY NA MIC
SELECT switch. 0007
Do not lock or unlock theve hicle. Re
quirements:
R the ball neck must be extended and engaged
in the securely loc ked position Tr
ailers with a 7-pin plug can be connec tedto
th eve hicle with thefo llowing adap ters:
R adap ter plug
R adapte r cable
The trailer will be cor rectly de tected bytheve hi‐
cle only if thefo llowing conditions are me t:
R the trailer is connected cor rectly
R the trailer lighting sy stem is in working order
The functions of thefo llowing sy stems are af fec‐
te dby a cor rectly connected traile r:
R Active Lane Keeping Assist
R ESP ®
trailer stabilisation
R Parking Assist PARKTRONIC
R Active Parking Assist
R Blind Spot Assist or Active Blind Spot Assi st Driving and pa
rking 245

Coupling up a trailer
000E NO
TEDama getotheve hicle battery due
to full discharge Charging
the trailer battery using the po wer
supply of the trailer can damage theve hicle
batter y. 0007
Do not use theve hicle's po wer supply
to charge the trailer batter y.0007
Remo vethe co ver from the ball head and
st ore it in a safe place (0013 page114). 0007
Position the trailer on a le vel sur face behind
th eve hicle and couple it up totheve hicle. 0007
Open the soc ket cap. 0007
Inse rtthe plug with lug 1in groo ve3 on
th e soc ket. 0007
Turn the ba yonet coupling 2clockwise as
fa r as it will go. 0007
Let the cap engage. 0007
Secure the cable tothe trailer with cable ties
(only if you are using an adap ter cable). 0007
Make sure that the cable is alw ays slack for
ease of mo vement during cornering.
A display messa gemay appear on the multifunc‐
tion display even if the trailer has been connec‐
te d cor rectly:
R LEDs ha vebeen ins talled in the trailer light‐
ing sy stem
R The cur rent has fallen below the trailer light‐
ing sy stem's minimum cur rent (50 mA).
0009 Accessories can be connected tothe perma‐
nent po wer supp lyup to180W, and tothe
po we r supp lythat is swit ched on via the igni‐
tion loc k. Un
coupling a trailer 000A
WARNING Risk of being crushed and
becoming trapped when uncoupling a
trailer
When uncoupling a trailer wi than engaged
ine rtia-activated brake, your hand may
become trapped between theve hicle and the
trailer dr awbar. 0007
Do not uncouple trailers with an
engaged overrun brake. 000A
WARNING Risk of becoming trapped
when disconnecting the trailer cable
Ve hicles with le vel control sy stem: The
ve hicle lo werswhen the trailer cable is dis‐
connected.
This could result in you or other people
becoming trapped if your or their limbs are
between theve hicle body and the tyres or
underneath theve hicle. 0007
Make sure that nobody is unde rneath
th eve hicle or in the immediate vicinity 246
Driving and pa rking

0007
Toselect a menu item: swipe up, down, left
or right on Touch Control 2. 0007
Press Touch Control 2. 0007
Tomo vethe digital map: swipe in any
direction.
Setting the sensitivity for the Touch Control
Multimedia sy stem:
0018 System 0019
w Input
0019 Touch Control sensitivity 0007
Select Fast,Medium orSlow . Operating
the controller 1
0038 button
Press brief ly:re turns tothe pr evious display
Press and hold: calls up main functions
2 00E2 button
Calls up the main functions To
call up favo urites: when the main func‐
tions are displa yed, slide controller 3
down.
3 Controller
Controller operating options: 0007
Turn 0018 anti-clockwise or clo ckwise. 0007
Slide 0016 left orright. 0007
Slide 0019 up or down. 0007
Slide 0017 diagonally. 0007
Press 001Cbrief lyor press and hold. To
uchpad Ac
tivating/deactivating the touchpad
Multimedia sy stem:
0018 System 0019
w Input 0007
Activate 0073or deacti vate 0053 theTouchpad .
Operating theto uchpad
Re quirements:
R The touchpad is swit ched on
(0013 page 280). 280
Multimedia sy stem

De-authorising
the device 0007
Select an authorised device from the list.
A prom ptwill appear asking whe ther you
wo uld like todeauthorise the selected
device. 0007
Select Yes.
The device is deauthorised. Ac
tivating/deactivating child saf ety lock Multimedia sy
stem:
0018 System 0019
Parental control
Locking an extern al device 0007
Select an extern al device. 0007
Select Lock.
The device connec ted via theCO MAND
To uch App is loc ked0073 or unloc ked0053. Sy
stem language Note
s onthe sy stem language
This function allo wsyouto determ ine the lan‐
guage forth e menu displa ysand the navigation announcements. The selected language af
fects
th ech aracters available for entr y.The navigation
announcements are not available in all lan‐
guages. If a language is not available, the naviga‐
tion announcements will be in Engl ish.
Setting the sy stem language
Multimedia sy stem:
0018 System 0019
Language 0007
Set the language.
0009 Ifyo u are using Arabic map data, thete xt
information can also be shown in Arabic on
th e navigation map. Todo so, select 

0007
Select Protect data export .
Ac tivate 0073or deacti vate 0053 the function.
Un blocking the PIN
Re quirements:
R There is an Internet connection.
R A Mercedes me account exists at http://
www.me rcedes.me.
R The Personalisation service is active
(0013 page 295).
If th e PIN has been entered incor rectly three
times, the PIN will be bloc ked. You can ha ve a
single-use password sent to you via the
Mercedes me connect online por taltoreset the
PIN pr otection. 0007
Select Unblock PIN. 0007
Ente rth e single-use password.
PIN pr otection is reset, and you can set a
new PIN.
0009 Alternativel y,yo u can ha vePIN pr otection
re set at a Mercedes-Benz service centre. User profile
Setting a user profile
Multimedia sy
stem:
0018 System 0019
g Personalisation
Displaying a user profile when starting
If th is function is active, a prom ptappears when
st arting the sy stem asking which user profile to
use. 0007
Select Display profile list after start . 0007
Activate 0073or deacti vate 0053 the function.
Selecting a user profile 0007
Select Guestor individual profile 003B.
0009 Some settings from the user profile are only
loaded when theve hicle is stationary or
when the ignition is switched on.
Au tomatic syn chronisation
Each time the ignition is switched off or on, the
individual user profiles are synchronised on the
multimedia sy stem and on the ser ver.This
ensures that the latest user profiles are alw ays
av ailable. 0007
Select Automatic synchronisation. 0007
Activate 0073or deacti vate 0053 the function.
0009 For more information about importing/
ex porting user profiles (0013 page 296).
Creating a user profile
Multimedia sy stem:
0018 System 0019
g Personalisation
0019 Create profile 0007
Ente r a name. 0007
Select 0076.
The following information is sa ved in the user
profile, forex ample:
R System settings
R Settings in theTV tuner's channel list
R Navigation and traf fic information
The settings di ffer depending on theve hicle
equipment. Multimedia sy
stem 295

0009
Requirements:
R Mercedes me connect is available.
R You ha vea user account forthe
Mercedes me por tal.
R The service has been activated at a
Mercedes-Benz service centre.
Fu rther information can be found at: http://
www.mercedes.me
0009 The online information is not available in all
countries.
If Display in COMAND is activated inTraf fic Sign
Assi st (0013 page 236), speed limits and over‐
ta king restrictions are displ ayed on the map.
0009 Company logos displa yed on the map are
trademar ksofthere spective companies and
used solely forth e purpose of indicating the
locations of these companies. The use of
such logos on the map does not indicate
appr oval of, suppo rtof or advertising by
th ese companies forth e navigation sy stem
itself. Setting
the map scale
Re quirements:
R The map is shown.
Multimedia sy stem:
0018 Navigation 0007
Tozoom in: swipe down on theTo uch Con‐
trol.
or 0007
Turn the controller anti-clockwise.
or 0007
Movetwo fingers apart on theto uchpad. 0007
Tozoom out: swipe up on theTo uch Control.
or 0007
Turn the controller clockwise.
or 0007
Movetwo fingers toge ther on theto uchpad.
0009 You can set the unit of measurement of the
map scale (0013 page 293). Moving
the map
Multimedia sy stem:
0018 Navigation 0019
Z Options
0019 Map menu 0007
Alternatively, if the map is displa yed in full
screen mode, press the cent ral control ele‐
ment.
The map menu appears. 0007
Select "Mo vemap" in map menu 2
(0013 page 321). 0007
Swipe in any direction on theTo uch Control
or touchpad.
or 0007
Slide the controller in any direction.
The map mo ves in the cor responding direc‐
tion under the crosshair. The fur ther you
mo veyour finger away from thest arting posi‐
tion on theto uchpad, thefast erthe map
mo ves. 322
Multimedia sy stem