tow MERCEDES-BENZ C-CLASS CABRIOLET 2021 Workshop Manual

R
Depending on the count ry:th e driver
presses a steering wheel button or operates
To uch Control
If Ac tive Steering Assist de tects that a sy stem
limit has been reached, a visual warning is
issued and a warning tone sounds.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 168).
Sy stem limits
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 thro ugh exits.
The sy stem may be impaired or may not function
in thefo llowing ins tances:
R The reis poor visibilit y,e.g. due tosno w,rain,
fo g, heavy spr ay, greatly varying light condi‐
tions or strong shado wsonthe car riag ewa y.
R There is glare, e.g. from oncoming traf fic,
di re ct sunlight or reflections.
R Insuf ficient road illumination. R
The windsc reen is dirty, mis ted up, damaged
or co vered in the vicinity of the camera, e.g.
by ast icke r.
R No, or se veral, unclear lane markings are
present for one lane, or the markings change
qu ickl y,forex ample, in a con stru ction area
or junctions.
R The lane markings are wornaw ay, dark or
co vered up, e.g. bydirt or sno w.
R Ifth e dis tance totheve hicle in front is too
short and thus the lane markings cann otbe
de tected.
R The road is nar rowand winding.
R There are obs tacles on the lane or projecting
out into the lane, such as object mar kers.
The sy stem does not pr ovide assis tance in the
fo llowing conditions:
R On tight bends and when turning.
R When crossing junctions.
R Atroundabouts or tollst ations.
R When towing a trailer.
R When the tyre pressure is too lo w. &
WARNING Risk of accident if Active
St eering Assist unexpectedly stops func‐
tioning
If th e sy stem limits of Active Steering Assist
are reached there is no guarantee that the
sy stem will remain active or will keep the
ve hicle in lane. #
Alw ayske ep your hands on thesteering
wheel and obser vethe tra ffic carefull y. #
Alw aysst eer theve hicle paying atten‐
tion totraf fic conditions. &
WARNING Risk of accident if Active
St eering Assist unexpectedly inter venes
The de tection of lane markings and objects
may malfunction and cause unexpected
st eering inter ventions. #
Steer according totraf fic conditions. Ac
tivating Active Steering Assist
Re quirements:
R ESP ®
must be activated, but not inter vening. Driving and pa
rking 187

%
The turn signal indicator is switched on auto‐
matically when the parking procedure
begins.
Yo u are responsible for selecting the turn signal
indicator in accordance with the traf fic condi‐
tions. If necessar y,select the turn signal indica‐
to r according ly. &
WARNING Risk of accident due tovehi‐
cle swinging out while parking or pulling
out of a parking space
While parking or exiting a parking space, the
ve hicle swings out and can drive onto areas
of the oncoming lane.
This could cause youto collide wi thobjects
or other road users. #
Pay attention toobjects and other road
users. #
Where necessar y,stop theve hicle or
cancel the parking procedure with
Ac tive Parking Assist. #
If,forex ample, thePlease engage reverse
gear message appears in the media display: select
the cor responding transmission posi‐
tion.
The vehicle drives into the selected parking
space.
% During the parking procedure with Active
Pa rking Assist, the lane markings are dis‐
pla yed in green in the camera image.
On completion of the parking procedure, the
Ø Active Parking Assist finished, take con-
trol of the vehicle. displaymessa geappears. Fur‐
th er manoeuvring may still be necessar y. #
After completion of the parking procedure,
safeguard theve hicle against rolling away.
When requ ired bylegal requirements or local
conditions: turn the wheels towa rdsth eke rb.
% You can stop theve hicle and change the
transmission position du ring the parking pro‐
cedure. The sy stem then calculates a new
ve hicle path. If no new vehicle path is availa‐
ble, the sy stem can change the transmission
position again or cancel the parking proce‐
dure. Exiting a parking space with
Active Parking
Assist
Re quirements:
R The vehicle has been par ked with Active
Pa rking Assist.
Please no tethat you are responsible forth eve hi‐
cle and sur roundings during the entire parking
procedure. #
Start theve hicle. 216
Driving and pa rking

L
symbol appears inthe media display and
th eve hicle can be braked automatically.
If th era dar sensors are obstructed byvehicles
or other objects, de tection is not possible.
Cross Traf fic Alert is acti veunder thefo llowing
conditions:
R ifth eve hicle is reve rsing at a walking pace.
R manoeuvring assis tance is acti vated
( / page 219).
% Also obse rveth e instructions on Blind Spot
Assist and Active Blind Spot Assi st
( / page 195).
Sy stem limits
Cross Traf fic Alert is not available on inclines.
Cross Traf fic Alert is not available when driving
with a trailer. Ac
tivating or deactivating manoeuv ring
assistant
Multimedia sy stem:
4 Vehicle 5
k Assistance
5 Camera & Park. Assist
5 Manoeuvring assist. #
Activate Oor deacti vate ª the function.
% Manoeuvring assis tance mu stbe active for
th e function of Drive AwayAssi st
( / page 218) and Cross Traf fic Alert
(/ page 218). Tr
ailer hitch Note
s on trailer operation *
NO
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto 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 Perm issible towing capacity
R Perm issible rear axle load of theto wing vehi‐
cle
R Perm issible gross weight of theto wing vehi‐
cle
R Perm issible grossweight 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 Driving and parking
219

When using a bicycle
rack , set the tyre pressure
fo r increased load on there ar axle of theve hicle.
Fu rther information on the tyre pressure can be
fo und in the tyre pressure table (/ page 397).
Note s on loading
The lar gerth e dis tance between the load's
cent reof gr avity and the ball head, the greater
th e load on the trailer hitch.
Therefore, obser vethefo llowing no tes:
R mount heavy bicycles as close totheve hicle
as possible
R always distribute the load on the bicycle rack
as eve nly as possible across theve hicle's
longitudinal axis
Mercedes-Benz recommends removing all
de tach able parts from bicycles (e.g. bask ets,
ch ild seats, rech arge able bat teries) before load‐
ing them onto the bicycle rack . This will impr ove
th e aerodynamic resis tance and centre of gr avity
of the bicycle rack.
Alw ays secure the bicycles topreve ntthem from
moving around and check them at regular inter‐
va ls to ensure that they are secure. Do not use
tarp aulins or other co vers. The driv‐
ing characteristics and rear view may be
impaired. In addition, aerodynamic resis tance
and the load on the trailer hitch will increase. Load distribution on
the bicycle rack
1 Vertical dis tance between centre of gr avity
and ball head
2 Horizon tal dis tance between centre of gr av‐
ity and ball head
3 The centre of gr avity is on theve hicle's
centre axis Obse
rveth efo llowing information when you are
loading the bicycle rack with up tothre e bicy‐
cles:
Loading the bicycle rack To
tal weight
of bicycle
rack and
load Max. dis‐
tance
1 1 Max. dis‐
tance
2 2
Up to75 kg 420 mm 300 mm Ve
hicle towing instructions
The vehicle is not suitable forth e use of tow bar
sy stems that are used forflat towing or ding hy
to wing, forex ample. Attach ing and using tow bar
sy stems can lead todamage on theve hicle.
When you are towing a vehicle with tow bar sys‐
te ms, safe driving characteristics cannot be
guaranteed forth eto wing vehicle or theto wed
ve hicle. The vehicle-trailer combination may
swer vefrom side toside. Comply with the per‐
mitted towing me thods (/ page 386) and the
instructions forto wing with bo thaxles on the
ground ( /page 387). Driving and parking
225

The count
ryin which theve hicle is located is set
1.
There are two available me thods of destination
entry:
R Free sear ch2
R Sea rchstep-b y-step 3
Me thod 1: free sear ch #
Enter the POI or address in 2. The entries
can be made in any order.
During destination entry , suggestions are
made bythe multimedia sy stem. A selection
of destinations appears in a list. Ente
rth ese address elements, forex ample:
R City, stre et, house number
R Street,to wn
R Postcode
R POI name
R POI catego ry, e.g. Petrol station
R Town, POI name
Examples of destination ent ry:
R Ifyo u are sear ching forKö nigsstraße in
St utt gart,fo rex ample, you can en ter
ST UT and KÖN.
R Ifyo u are sear ching for a POI in theUni‐
te d Kingdom, forex ample, you can en ter
THE SHARD.
To try bo thexamples, the count rysetting
must also be changed (me thod 2). #
Toswitch tohandwriting recognition:
select v5. #
Write thech aracter on theto uchpad. #
Toswitch to character selection: pressthe
% button. or #
Press theto uchpad. #
Todel ete an entr y:select %4(ifavail‐
able).
Use thefo llowing options:
R Press brief ly: del etes the last character
entered or the last suggestion adop ted.
R Press and hold: dele testh e entire entry. #
Toset the language: selectB8. #
Select the language.
% This function is useful for countries in which
se veralch aracter sets are suppo rted. An
ex ample is Russia, which uses Cyrillic and
Latin characters. #
Tocall up the online sear chfunction:
select Online search 6.
Once an Internet connection is es tablished, a
list appears. It sho wsonline destinations
re lated tothe pr evious ent ry.
The online destination is supplied byan In ter‐
net pr ovider. #
Select the online destination. Multimedia sy
stem 271

Information on
NearField Communication
(NFC)
NFC enables short- range wi reless data transfer
or (re)connection of a mobile phone with the
multimedia sy stem.
The following functions are available without
having authorised a mobile phone:
R Trans ferring a URL tobe vie wed in the multi‐
media sy stem (see the manufacturer's oper‐
ating instructions).
R Setting up theve hicle's Wi-Fi access da tavia
th e sy stem settings (/ page 260).
Fu rther information can be found at: https://
www.mercedes-benz-mobile.com/
Using a mobile phone with Near-Field Com‐
munication (NFC)
Re quirements:
R NFC is activated on the mobile phone (see
th e manufacturer's operating instructions)
R The mobile phone's screen is switched on
and unloc ked (see the manufacturer's oper‐
ating instructions) Connecting a mobile phone
#
Open stowage compartment co ver1. #
Hold the NFC inter face of the mobile phone
(see manufacturer's operating instructions)
on mat 2or place the mobile phone on mat
2 with the display facing up wards.
The mobile phone is connected tothe multi‐
media sy stem. #
Follow the additional prom pts on the media
display toconnect the mobile phone.
Re placing a mobile phone #
Hold the NFC inter face of the mobile phone
(see manufacturer's operating instructions) on mat
2or place the mobile phone on mat
2 with the display facing up wards.
Fu rther information can be found at: https://
www.mercedes-benz-mobile.com/
Setting there ception and transmission vol‐
ume
Re quirements:
R The mobile phone is authorised
(/ page 298).
Multimedia sy stem:
4 Telephone 5
Z Options
5 Telephone
This function ensures optimal language qualit y. #
Select Reception volume orTransmission
volume. #
Set thevo lume.
Fu rther information on there commended recep‐
tion and transmission volume: https://
www.me rcedes-benz-mobile.com/ Multimedia sy
stem 301

Ac
cepting/rejecting the data pr otection reg‐
ulations
A message with the data pr otection regulations
appears. #
Select Accept & Start .
or #
Select Decline & End.
Exiting Apple CarPlay ®#
Press theò button on the multifunction
st eering wheel, forex ample.
% If Apple CarPlay ®
wa s not displa yed in the
fo re ground be fore disconnecting, the appli‐
cation starts in the bac kground when recon‐
nected. You can call up Apple CarPlay ®
in
th e main menu.
Calling up Apple CarPlay ®
sound settings
Multimedia sy stem:
4 Connect 5
Apple CarPlay 5
Sound #
Select the sound menu (/ page 351). Ending Apple CarPlay
®
Multimedia sy stem:
4 Connect 5
Apple CarPlay #
Select Disconnect.
The connection is ended.
The mobile phone continues tobe supplied
with elect ricity.
or #
Disconnect the connecting cable between
th e mobile phone and multimedia sy stem.
Mercedes-Benz recommends disconnecting
th e connecting cable only when theve hicle is
st ationar y. Android
Auto Android
Autoove rview &
WARNING Risk of di stra ction from infor‐
mation sy stems and communications
equipment
If yo u operate information and communica‐
tion equipment integ rated in theve hicle when driving,
you will be distracted from the
traf fic situation. This could also cause youto
lose control of theve hicle. #
Only operate this equipment when the
traf fic situation permits. #
Ifyo u cannot be sure of this, stop the
ve hicle whilst paying attention toroad
and traf fic conditions and ope rate the
equipment with theve hicle stationar y. Yo
u must obse rveth e legal requirements forthe
country in whi chyou are cur rently driving when
operating the multimedia sy stem.
Mobile phone functions can be used with
Android Autousing the Android operating sys‐
te m on the multimedia sy stem. It is operated
using the cent ral control element or voice con‐
trol sy stem. You can activate thevo ice control
sy stem bypressing and holding theó button
on the multifunction steering wheel.
Only one mobile phone at a time can be connec‐
te d via Android Autowith the multimedia sys‐
te m. Multimedia sy
stem 311

The
availability of Android Autoand Android Auto
apps may vary according tothe count ry.
The service pr ovider is responsible forth is appli‐
cation and the services and conte nt connected
to it.
Information on Android Auto
While using Android Auto,va rious functions of
th e multimedia sy stem, forex ample the media
source Blue tooth®
audio, are not available.
On lyone route guidance can be active at a time.
If ro ute guidance is active on the multimedia sys‐
te m, it is closed when route guidance is star ted
on the mobile phone.
Connecting a mobile phone via Android Auto
Requ irements:
R The firs t acti vation of Android Autoon the
multimedia sy stem must be car ried out when
th eve hicle is stationary for saf etyre asons.
R The mobile phone suppo rts Android Auto
from Android 5.0.
R The Android Autoapp is ins talled on the
mobile phone. R
In order touse thete lephone functions, the
mobile phone must be connected tothe mul‐
timedia sy stem via Blue tooth®
( / page 298).
If th ere was no prior Internet connection, this
is es tablished with the use of the mobile
phone with Android Auto.
R The mobile phone is connected tothe multi‐
media sy stem via the USB port çusing a
suitable cable (/ page 331).
R An Internet connection is requ ired forth e full
ra nge of functions for Android Auto.
Multimedia sy stem:
4 Connect 5
Android Auto #
Select the mobile phone from the device list.
Ac cepting/rejecting the data pr otection reg‐
ulations
A message with the data pr otection regulations
appears. #
Select Accept & Start .
or #
Select Decline & End. Ac
tivating automatic start #
Select Start automatically O.
St arting manually #
Select the mobile phone from the device list.
Exiting Android Auto #
Press theò button on the multifunction
st eering wheel, forex ample.
% If Android Autowa s not displa yed in thefo re‐
ground before disconnecting, the application
st arts in the bac kground when reconnected.
Yo u can call up Android Autointhe main
menu.
Calling up the Android Autosound settings
Multimedia sy stem:
4 Connect 5
Android Auto 5
Sound #
Select theto ne menu (/ page 351).
Ending Android Auto
Multimedia sy stem:
4 Connect 5
Android Auto #
Select Disconnect.
The connection is ended. 312
Multimedia sy stem

Multimedia sy
stem:
4 Media 5
à Media sources
5 Mem. card
Inserting
The multimedia connection unit is located in the
stow age compartment under the armrest. #
Insert the SD memory card into the SD card
slot until it engages. The side with the con‐
ta cts must face down wards.
Pla yable music files are pla yed bac k.
Re moving #
Press the SD card. #
Remo vethe SD card. 330
Multimedia sy stem

The multimedia connection unit is
found in the
stow age compartment under the armrest and
has two USB ports.
Depending on theve hicle's equipment, addi‐
tional USB ports can be found in thestow age
compartment of the cent reconsole and in the
re ar passenger compartment. #
Connect the USB device tothe USB port.
Pla yable music files are pla yed back only if
th e cor responding media display is activated.
% Use the USB port identified byç touse
Apple CarPlay ®
and Android Auto.
% Depending on theve hicle equipment there is
an additional USB port in there ar passenger
compartment. Ports th at are labelled with a
bat tery symbol can only be used tocharge
USB devices.
Selecting a track in the media playba ck
Multimedia sy stem:
4 Media
Selecting a track byskipping toa track #
Toskip backwards or forw ards toa
track: navigate up or down. Selecting a track using
the cur rent track list #
Select è. #
Select Current track list. #
Select a tra ck.
Selecting playback options
Multimedia sy stem:
4 Media 5
Z Options
Playing back similar trac ks #
Select Play similar tracks.
A track li stwith similar trac ksis created and
pla yed bac k.
Playback mode #
Select Random playback of the current track
list.
The cur rent track li stis pla yed in random
orde r. #
Select Random playback of the current
medium.
All trac kson the active data storage medium
are pla yed in random orde r. #
Select Normal track sequence .
The cur rent track li stis pla yed in the order it
appears on the data storage medium.
Controlling media playback
Multimedia sy stem:
4 Media 5
Y Playback control
A bar with playback controls is shown. #
Topause playback: select and confirm
Y with th e cent ral control element.
The Ë symbol is displa yed. #
Toresume playback: select and confirm
Y again with the cent ral control element.
The Ì symbol is displa yed.
To fast forw ard/r ewind #
MoveË onthe timeline.
To hide the playback controls #
Press the% button. 332
Multimedia sy stem