lock MERCEDES-BENZ C-CLASS COUPE 2021 Service Manual

R
get out and be stru ck byoncoming traf‐
fi c.
R ope rate vehicle equipment and become
trapped, forex ample.
In addition, thech ildren could also set the
ve hicle in motion by,fo rex ample:
R releasing the parking brake.
R changing the transmission position.
R starting theve hicle. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. The electric pa
rking brake is applied if the
tr ansmission is in position j
jand one of the
fo llowing conditions is fulfilled:
R The engine is switched off. R
The seat belt tongue is not inser ted in the
seat belt buckle of the driver's seat and the
driver's door is opened.
% Toprev ent application: pull the handle of the
electric parking brake (/ page173).
In thefo llowing situations, the electric pa rk‐
ing brake is also applied:
R The HOLD function is keeping theve hicle sta‐
tionar y.
R Active Parking Assist is keeping theve hicle
st ationar y.
R Active Dis tance Assi stDISTRONIC is bringing
th eve hicle toast andstill.
R In addition, one of thefo llowing condi‐
tions mu stbe fulfilled:
- The engine is switched off.
- The seat belt tongue is not inser ted in the
seat belt buckle of the driver's seat and
th e driver's door is opened.
- There is a sy stem malfunction.
- The po wer supp lyis insuf ficient. -
The vehicle is stationary for a lengt hy
period.
When the electric parking brake is applied, the
re d! indicator lamp lights up in the instru‐
ment clus ter.
% The electric parking brake is not automati‐
cally applied if the engine is switched off by
th e ECO start/ stop function.
Fu nction of the electric pa rking brake
(releasing automatically)
The electric parking brake is released when
th efo llowing conditions are fulfilled:
R The driver's door is closed.
R The engine is running.
R The transmission is in position hork and
yo u depress the accelera tor pedal or you
shift from transmission position jtoh or
k when on le velground.
R Ifth e transmission is in position k,the boot
lid must be closed.
R The seat belt tongue is inser ted into the seat
belt buckle of the driver's seat. 17 2
Driving and pa rking

Fu
nctions of ABS (Anti-lock Braking Sy stem) ABS
regulates the brake pressure in critical driv‐
ing situations:
R During braking, e.g. at maximum full-s top
braking or insuf ficient tyre traction, the
wheels are pr evented 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 limits
R ABS is active from speeds of appr ox.
5 km/h.
R ABS may be impai red or may not function if a
malfunction has occur red and theye l‐
low ! ABSwarning lamp lights up contin‐
uously in the instrument clus ter af terthe
engine is star ted. Fu
nction of BAS &
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. #
Dep ress the brake pedal with full force
in emer gency braking situations. ABS
pr eve nts the wheels from locking. 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. *
NO
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto 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. Driving and parking
17 7

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 must not exceed a maximum
speed of 100 km/h forre asons concerning the
operating permit. This also applies in countri es
in which the permissible maximum speed for
car/trailer combinations is ab ove100 km/h. Fo
lding the ball neck out and in &
WARNING Risk of accident due tothe
ball neck not being engaged
If th e ball neck is not engaged, the trailer
may come loose. #
Alw ays engage the ball neck as descri‐
bed. &
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! #
Unlock the ball neck only when its
ra nge of mo vement is unobstructed. #
Alw ays be sure the ball neck is engaged
when folding in wards. *
NO
TEIncreased risk of damage toprop‐
erty due tofolded-out ball neck #
When the trailer is not coupled or the
bicycle rack is attached, fold in the ball
neck or, in the case of a fully electric
trailer hitch, retract the ball nec k. *
NO
TEDama getotheve hicle due to
incor rect use of the trailer hitch When a trailer hitch is used
toreco ver a vehi‐
cle, theve hicle may be damaged in the proc‐
ess. #
Use the trailer hitch only for pulling a
trailer or attaching appro ved car rier
sy stems (e.g. a bicycle rack ). Re
quirements:
R The vehicle is secured against rolling away.
R The swivel range is clear.
R The trailer cables or adap ter plugs ha vebeen
re mo ved. Driving and parking
227

Fo
lding the ball neck out #
Pull swit ch2 until the ball neck unloc ks.
The ball neck will fold out from under the
re ar bumper.
Indicator lamp 1will flash. #
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 lock message
will appear on the multifunction displa y. #
Remo vethe co ver cap 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 #
Pull swit ch2 until the ball neck unloc ks.
The ball neck will fold up under there ar
bumper.
Indicator lamp 1will flash. #
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 about the displa yson
th e instrument clus ter:
R Indicator and warning lamps (/ page 487)
R Display messages (/ page 433)228
Driving and parking

Coupling up/uncoupling a trailer
&
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: #
The doors or tailgate are not opened or
closed. #
You do not initiate the le vel control sys‐
te m and do not operate theDY NA MIC
SELECT switch. #
Do not lock or unlock theve hicle. Re
quirements:
R The ball neck is extended and engaged in a
secu rely loc ked position. Tr
ailers with a 7-pin plug can be connec tedto
th eve hicle with thefo llowing adap ters:
R Adapter plug
R Adapter 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 rectl y.
R The trailer lighting sy stem is in working
order.
The functions of thefo llowing sy stems will be
af fected bya cor rectly connected traile r:
R ESP ®
trailer stabilisation
R Active Lane Keeping Assist
R Parking Assist PARKTRONIC
R Active Parking Assist
R Blind Spot Assist or Active Blind Spot Assi st
R Drive AwayAssi st
R Cross Traf fic Alert
R Reversing camera
R 360° camera R
AIRMATIC
Coupling up a trailer
* NO
TEDama getothest ar ter battery due
to full discharge Charging
the trailer battery using the po wer
supply of the trailer can damage thest ar ter
batter y. #
Do not use theve hicle's po wer supply
to charge the trailer batter y. #
Remo vethe co ver cap from the ball head and
st ore it in a safe place. #
Position the trailer on a le vel sur face behind
th eve hicle and couple it up totheve hicle. Driving and parking
229

#
Swipe down on Touch Control 2.
Opening and closing a list #
Toopen: pressTouch Control 2. #
Toclose: press button 3.
or #
Swipe right on Touch Control 2.
Selecting a menu item #
Swipe up, down, left or right on Touch Con‐
trol 2. #
Press Touch Control 2.
Moving the digital map #
Swipe in any direction.
Setting the sensitivity for the Touch Control
Multimedia sy stem:
4 System 5
w Input
5 Touch Control sensitivity #
Select Fast,Medium orSlow . Operating
the controller 1
% button
Press brief ly:re turns tothe pr evious display
Press and hold: calls up main functions
2 ò 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: #
Turn 3 anti-clockwise or clo ckwise. #
Slide 1 left orright. #
Slide 4 up or down. #
Slide 2 diagonally. #
Press 7brief lyor press and hold. To
uchpad Ac
tivating/deactivating the touchpad
Multimedia sy stem:
4 System 5
w Input #
Activate Oor deacti vate ª theTouchpad .
Operating theto uchpad
Re quirements:
R The touchpad is swit ched on (/ page 256). 256
Multimedia sy stem

De-authorising
the device #
Select an authorised device from the list.
A prom ptwill appear asking whe ther you
wo uld like tode-authorise the selected
device. #
Select Yes.
The device is de-authorised. Ac
tivating/deactivating child saf ety lock Multimedia sy
stem:
4 System 5
Parental control
Locking or unlocking an extern al device #
Select an extern al device. #
Select Lock.
The device connec ted via theCO MAND
To uch app is loc kedO or unloc kedª. 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:
4 System 5
Language #
Set the language.
% Ifyo u are using Arabic map data, thete xt
information can also be shown in Arabic on
th e navigation map. Todo so, select 

Un
blocking the PIN
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 talto reset the
PIN pr otection. #
Select Unblock PIN. #
Ente rth e single-use password.
PIN pr otection is reset, and you can set a
new PIN.
% The availability of this function is country
dependent and may not be available in your
count ry.
Alternati vely, you can ha vePIN pr otection
re set at a Mercedes-Benz service centre. User profile
Setting a user profile
Multimedia sy
stem:
4 System 5
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. #
Select Display profile list after start . #
Activate Oor deacti vate ª the function.
Selecting a user profile #
Select Guestor individual profile #.
% 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 availa‐
ble. #
Select Automatic synchronisation. #
Activate Oor deacti vate ª the function.
% For more information about importing/
ex porting user profiles (/ page272).
Crea ting a user profile
Multimedia sy stem:
4 System 5
g Personalisation
5 Create profile #
Ente r a name. #
Select a.
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 271

%
Requirements:
R Mercedes me connect is available.
R You ha vea user account forthe
Mercedes me Portal.
R The service has been activated at a
Mercedes-Benz service centre.
Fu rther information can be found at:
https://www.mercedes.me
% The online information is not available in all
countries.
If Display in COMAND is activated inTraf fic Sign
Assi st (/ page 202), speed limits and overtak‐
ing restrictions are displ ayed on the map.
% 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:
4 Navigation #
Tozoom in: swipe down on theTo uch Con‐
trol.
or #
Turn the controller anti-clockwise.
or #
Movetwo fingers apart on theto uchpad. #
Tozoom out: swipe up on theTo uch Control.
or #
Turn the controller clockwise.
or #
Movetwo fingers toge ther on theto uchpad. Moving
the map
Multimedia sy stem:
4 Navigation 5
Z Options
5 Map menu #
Alternatively, if the map is displa yed in full
screen mode, press the cent ral control ele‐
ment.
The map menu appears. #
Select "Mo vemap" in map menu 2
(/ page 296). #
Swipe in any direction on theTo uch Control
or touchpad.
or #
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. Multimedia sy
stem 297

#
With your hand flat, push down active bonnet
1 inthe area around the hinges on bo th
sides (ar rows).
In doing so, the actuator is depressurised
and you may hear a hissing sound.
The engine bonnet must en gage in position. #
Ifth e active bonn etcan be raised slight lyat
th ere ar in the area of the hinges, repeat the
st ep until it engages cor rectl y. Opening and closing
the bonnet &
WARNING Risk of accident due todriv‐
ing with the bonn etunlo cked
The bonn etmay open and block your vie w. #
Neverre lease the bonn etwhen driving. #
Before every trip, ensure that the
engine bonn etis loc ked. &
WARNING Risk of accident and inju ry
when opening and closing the bonn et
The bonnet may suddenly drop into the end
position.
There is a risk of injury for an yone in the
engine bonn et's range of mo vement. #
Do not open or close the bonn etifth ere
is a person in the bonn et's range of
mo vement. &
WARNING Risk of bu rns when opening
th e bonn et
If yo u open the bonn etwhen the engine has
ove rheated or when there is a fire inthe
engine compartment, thefo llowing situations
may occur:
R You could come into contact with hot
ga ses.
R You could come into contact with other
hot, escaping operating fluids. #
Before opening the bonn et, allow the
engine tocool down. #
Intheeve nt of a fire inthe engine com‐
partment, keep the bonn etclosed and
call thefire service. &
WARNING Risk of inju rydue tomoving
parts
Components in the engine compartment may
continue running or start up sudden ly,even if
th e ignition is switched off.
Make sure of thefo llowing before per form ing
ta sks in the engine compartmen t: #
Switch the ignition off. #
Neverre ach into the danger zone sur‐
ro unding moving co mponents, e.g. the
ro tation area of thefa n. #
Remo vejewe llery and watches. #
Keep items of clo thing and hair away
from moving parts. Maintenance and care
363