warning light MERCEDES-BENZ E-CLASS CABRIOLET 2021 Owners Manual

Symbols
Symbols
.......................................................... 5 5A
A
t a glance
t a glance ...................................................... 6 6
Co ckpit ........................................................... 6
Indicator and warning lamps .......................... 10
Overhead control panel ................................. 12
Door operating unit and seat adjustment .......14
Emer gencies and breakdowns ....................... 16 Digit Digit
al Owner's Manual
al Owner's Manual ................................. 18 18
Calling up the Digital Owner's Manual ............ 18 Gener
Gener
al not
al notes
es............................................... 20 20
Pr otection of the environment ....................... 20
Ta ke -back of end-of-life vehicles .................... 20
Mercedes-Benz Genuine Parts ........................ 21
Owner's Manual ............................................ 22
Operating saf ety ............................................ 22
Declarations of con form ity and no tes on
driving in di.erent countries .......................... 24
Diagnostics connection ................................. 31
Quali/ed specialist workshop ........................ 33
Ve hicle registration ....................................... 33 Cor
rect use of theve hicle ............................. 33
Information on the REACH regulation ............. 33
No tesfo r persons with electronic medical
aids .............................................................. 34
Implied warranty .......................................... .34
QR code forre scue card .............................. .35
Data storage .................................................35
Copyright ...................................................... 38 Occupant safe Occupant safe
ty
ty ............................................ 39 39
Re straint system .......................................... .39
Seat belts .................................................... .41
Airbags ......................................................... 46
Ro ll bar ......................................................... 53
PRE-SAFE ®
system ........................................ 54
Safely transporting children in theve hicle ...... 55
No tes on pets in theve hicle .......................... 73 Opening and closing
Opening and closing
...................................... 74 74
Ke y .............................................................. .74
Doors ............................................................ 77
Boot .............................................................. 82
SoT top ........................................................ .85Fi
tting and removing thefo lding draught
stop .............................................................. 89
Side windo ws................................................ 91
Anti-theT pr otection ...................................... 95 Seats and sto Seats and sto
wing
wing.........................................98 98
No tes on the cor rect driver's seat position ... .98
Seats ............................................................ 99
St eering wheel ............................................ 110
Easy entry and exitfeature .......................... 112
Memory function ......................................... 113
St owa geareas ............................................ 115
Soc kets ....................................................... 121
Wi reless charging of the mobile phone
and connection with theex terior aerial ........ 121
Fi tting and removing the 0oor mats ............. 123 Light and sight
Light and sight
............................................ 125 125
Exterior lighting ........................................... 125
Interior lighting ............................................ 133
Wi ndsc reen wipers and windscreen
wa sher system ............................................ 134
Mir rors ........................................................ 138 2 2
Contents

1
Steering wheel gearshiT paddles →
169
2 Combination switch →
127
3 Instrument displ ay →
248
4 DIRECT SELECT le ver →
167
5 Media display →
254
6 Start/stop but ton →
154
7 Calls up MBUX multimedia system applications →
257
8 Climate control systems →
143
9 Glovecompartment →
117
A £ Hazard warning light system →
127
B Stow age compartment →
117
C Touchpad →
257
D 8 Controller forvo lume and switching
sound on/o. →
254
E Ü Switches the MBUX multimedia system
on/o. →
254
F õ Extends/r etra cts the seat belt feeder →
44 G
ù Opens/closes the soT top →
85
H ô Activates/deacti vates AIR CAP →
88
I Opens the st owage compartment →
117
J ö Opens/closes the side windo ws →
91
K è ECO start/s top function →
162
L c Active Parking Assist →
233
M É Setstheve hicle le vel →
218
N DYNAMIC SELECT switch →
166
O PASSENGER AIR BAG indicator la mps→
50
P Control panel forth e MBUX multimedia system →
249
Q Adjusts the steering wheel manually →
110
R Adjusts the steering wheel electrically →
111
ý Switches the steering wheel heater
on/o. →
112
S Control panel:
On-board computer →
249
Cruise control or variable limi ter →
193 At
a glance – Cockpit
7 7

1
#! Turn signal lights →
127
2 ï Trailer hitch →
432
3 6 Restraint system →
431
4 å ESP®
OFF →
440
÷ ESP®
→
440
5 R Rear fog light →
126
6 K High beam →
127
L Low beam →
125
T Standing lights →
125
7 ÿ Coolant temp erature →
433
8 Coolant temp erature display →
248
9 ! Electric parking brake (yellow) →
437
A J Brakes (yellow) →
437
B L Distance warning →
439 C
# Electrical fault →
433
D Ù Electric po wer steering →
432
E ! ABS →
440
F h Tyre pressure monitoring system →
443
G % Diesel engine: preglow
H 8 Reser vefuel wi thfuel /ller 0ap location
indicator →
433
I Fuel le vel →
248
J ! Electric parking brake (red) →
437
K J Brakes (red) →
437
L ü Seat belt →
431
M ; Engine diagnostics →
433
N ä Suspension →
439 At
a glance – Indicator and warning lamps
11
11

1
B-pillar wi th:
QR code for accessing there scue card →
35
2 Safetyve sts →
315
3 ; me button →
277
G SOS button →
277
4 Tocheck and top up operating 0uids →
358
5 Tow- starting or towing away →
328
6 Flat tyre →
317
7 Starting assis tance →
326
8 £ Hazardwa rning light system →
127 9
Fire extinguisher →
316
A Fuel /ller 0ap with:
information label on fuel type →
171
information label on tyre pressure →
338
QR code for accessing there scue card →
35
B Tow- starting or towing away →
328
C TIREFIT kit →
319
D Firs t-aid kit (soT sided) →
316
E Warning triangle →
315 At
a glance – Emer gencies and breakdowns
17
17

wa
rning lamp lights up. It goes out no later than a
few seconds aTer theve hicle is star ted. The com-
ponents of there straint system are then func-
tional. Malfunctioning r
Malfunctioning r
es
estrtraint syst
aint syst em
em A malfunction has occur
red in there straint sys-
te m if:
R the6 restraint system warning lamp does
not light up when theve hicle is switched on
R the6 restraint system warning lamp lights
up continuously or repeatedly during a journey &
W
W ARNING
ARNING Risk of inju rydue tomalfunc-
tions in there straint system
Co mp onents in there straint system ma y be
acti vated unintentionally or not deploy as
intended in an accident. #
Have there straint system checked and
re paired immediately at a quali/ed spe-
cialist workshop. F
F
unction of t
unction of t he r
he res
estr
traint syst
aint syst em in an accident
em in an accident How
there straint system works is de term ined by
th e se verity of the impact de tected and the type
of accident anticipated:
R Frontal impact
R Rear impact
R Side impact
R Rollover
The activation thre sholds forth e components of
th ere straint system are de term ined based on the
ev aluation of the sensor values measured at vari-
ous points in theve hicle. This process is pre-e mp-
tive in nature. The triggering/deployment of the
components of there straint system must take
place in good time at the start of the collision.
Fa ctors which can only be seen and measured
aTer a collision has occur red do not play a deci-
sive role in the deployment of an airbag. Nor do
th ey prov ide an indication of airbag deployment.
The vehicle may be deformed signi/cantly without
an airbag being depl oyed. This is the case if only
parts which are relatively easily deformed are
a.ec tedand thera te of vehicle deceleration is not high. Con
versely, an airbag may be depl oyed
ev en though theve hicle su.ers only minor defor-
mation. If very rigid vehicle parts such as longitu-
dinal membe rsare hit, this may result in su1-
ciently high le vels of vehicle deceleration.
Depending on the de tected deployment situation,
th e components of there straint system can be
acti vated or deplo yed independently of each
ot her:
R Seat belt tensioner: frontal impact, rear
impact, side impact, rollo ver
R Driver's airbag, front passenger airbag: frontal
impact
R Knee airbag: frontal impact
R Side airbag: side impact
R Head airbag: side impact, rollo ver,frontal
impact
The front passenger airbag can only be deplo yed
in an accident if thePA SSENGER AIR BAG OFF
indicator la mpis o.. If the front passenger seat is
occupied, make sure, bo thbefore and during the
journe y,that the status of the front passenger air-
bag is cor rect (/ page 50). 40
40
Occupant saf
ety

Self-t
Self-t
es
est of autt of aut omatic fr
omatic fr ont passeng
ont passeng er airbag shut-
er airbag shut-
o.
o.
When theve hicle is switched on, a self-test is per-
fo rm ed during which the two PASSENGER AIR
BAG ON and OFF indicator la mps light up simul ta-
neous ly.
The status of the front passenger airbag is dis-
pla yed via thePA SSENGER AIR BAG indicator
la mp s aTer the self-test:
R ON is lit: ON is lit: the front passenger airbag may
deploy during an accident.
The indicator lamp goes out aTer 60 seconds.
R ON and OFF ar
ON and OFF ar e no e not lit:
t lit: the front passenger
airbag may deploy during an accident.
R OFF is lit:
OFF is lit: the front passenger airbag is disa-
bled. It will then not be deplo yed in theev ent
of an accident.
If th ePA SSENGER AIR BAG ON indicator la mpis
o., only thePA SSENGER AIR BAG OFF indicator
la mp shows th e status of the front passenger air-
bag. The PASSENGER AIR BAG OFF indicator la mp
may be lit continuously or be o.. If
th ePA SSENGER AIR BAG OFF indicator la mp
and the6 restraint system warning lamp light
up simultaneousl y,the front passenger seat may
not be used. Also in this case, do not /t a child
re straint system tothe front passenger seat. Ha ve
th e automatic front passenger airbag shuto.
ch ecked and repaired immediately at a quali/ed
specialist workshop.
S
S t
tatus display
atus display
If th e front passenger seat is occupied, ensure,
bo th before and during the journe y,that the sta-
tus of the front passenger airbag is cor rect forthe
cur rent situation.
ATer
ATer /tting
/tting a r
a rearw
earw ar
ard-f
d-f acing c
acing c hild r
hild res
estrtraint sy
aint sy s-
s-
t
t em t
em t o t
o the fr
he fr ont passeng
ont passeng er seat
er seat::PA SSENGER AIR
BAG OFF must be lit continuous ly. &
W
WARNI NG
ARNI NGRisk of injury or dea thwhen
using a rear wa rd-facing child restraint sys-
te m while the front passenger airbag is
enabled
If yo u secure a child in a rear wa rd-facing child
re straint system on the front passenger seat
and thePA SSENGER AIR BAG OFF indicator la
mp is o., the front passenger airbag can
deploy in theev ent of an accident.
The child could be struck bythe airbag. #
Always ensu rethat the front passenger
airbag is disabled. The PASSENGER AIR
BAG OFF indicator la mpmust be lit. #
NEVER use a rear wa rd-facing child
re straint system on a seat wi than ENA-
BLED FRONT AIR BAG. This can result in
th e DEATH of or SERIOUS INJURY tothe
CHILD. When /tting a
child restraint system tothe front
passenger seat, obser vetheve hicle-speci/c infor-
mation (/ page 70).
Depending on thech ild restraint system and the
stature of thech ild, thePA SSENGER AIR BAG OFF
indicator la mpmay be o.. In this case, do not /t
th ere ar wa rd-facing child restraint system tothe
front passenger seat.
Instead, /t there ar wa rd-facing child restraint sys-
te m to a suitable rear seat.
ATer
ATer /tting /tting a f
a forw
orw ar
ard-f
d-f acing c
acing c hild r
hild res
estr
traint sy
aint sy s-
s-
t
t em t
em t o t
o the fr
he fr ont passeng
ont passeng er seat
er seat::depending on the Occupant saf
ety
51
51

PRE-S
PRE-S
AFE
AFE®
®
syst
syst em
em F
F
unction of PRE-S
unction of PRE-S AFE
AFE®
®
(anticipat
(anticipat or
ory occupant
y occupant
pr ot
pr otection)
ection) PRE-SAFE
®
is able todetect cer tain critical driv-
ing situations and implement pre-em ptive meas-
ures toprotect theve hicle occupants.
PRE-SAFE ®
can implement thefo llowing meas-
ures independently of each other:
R Tightening the seat belts on the driver's seat
and front passenger seat.
R Closing the side windo ws.
R V
V ehicles wit
ehicles wit h memor
h memory function:
y function: movingthe
front passenger seat toa more favo urable seat
position.
R V
V ehicles wit
ehicles wit h multicont
h multicont our seat
our seat:
:increasing the
air pressure in the seat side bolsters of the
seat backrest.
R PRE-SAFE ®
Sound: pr ovided that the multime-
dia system is switched on, generating a brief
noise signal tostimula tethe innate pr otective
mechanism of a person's hearing. *
N
NOOTE
TE Damage caused byobjects in the
fo ot we ll or behind the seat The automatic adjustment of
the seat position
may result in damage tothe seat and/or the
object. #
Stow objects in a suitable place. R
R
e
ev
ver
er sing t
sing t he PRE-S
he PRE-S AFE
AFE®
®
syst
syst em measur
em measur es
es If an accident did not occur,
the pre-em ptive
measures that we re ta ken are reve rsed.
Yo u will need toper form certain settings yourself. #
Ifth e seat belt pre-tensioning is not reduced,
mo vethe seat backrest back slightl y.
The locking mechanism releases. F
F
unction of PRE-S
unction of PRE-S AFE
AFE®
®
PL
PL US (anticipat
US (anticipat or
ory occu-
y occu-
pant pr ot
pant pr otection plus)
ection plus) PRE-SAFE
®
PLUS can de tect cer tain impacts, par-
ticular lyan imminent rear impact, and take pre-
em ptive measures toprotect theve hicle occu- pants. These measures cann
otnecessarily pre-
ve nt an imminent impact.
PRE-SAFE ®
PLUS can implement thefo llowing
measures independently of each other:
R Tightening the seat belts on the driver's seat
and front passenger seat.
R Activating there ar hazard warning lights at a
higher 0ashing frequency.
R Increasing brake pressure when theve hicle is
stationar y.This brake application is cancelled
automatically when theve hicle pulls away.
If an accident did not occur, the pre-em ptive
measures that we re ta ken are reve rsed.
Syst
Syst em limits
em limits
The system will not initiate any action in thefo l-
lowing situations:
R when reve rsing
or
R when theve hicle is towing a trailer and there
is a risk of a rear impact 54
54
Occupant saf
ety

A
A
v
void dir
oid dir ect sunlight
ect sunlight &
W
WARNING
ARNING Risk of burns when thech ild
seat is exposed todirect sunlight
If th ech ild restraint system is exposed to
direct sunlight or heat, parts could heat up.
Children could su.er burns from these parts,
particular lyon me tallic parts of thech ild
re straint system. #
Always make sure that thech ild restraint
system is not exposed todirect sunlight. #
Protect thech ild restraint system wi th a
blank et,fo rex ample. #
Ifth ech ild restraint system has been
ex posed todirect sunlight, allow it to
cool before securing a child into it. #
Never lea vechildren unattended in the
ve hicle. Observ Observ
e when st
e when st opping or par
opping or par king
king &
W
WARNING
ARNING Risk of accident and injury due
to leaving children unattended in theve hi-
cle
If ch ildren are leT unattended in theve hicle,
th ey could, in particular:
R open doors, thereby endangering other
persons or road users.
R get out and be struck byoncoming tra1c.
R operate 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 unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. &
W
WARNING
ARNING Dangertolife due toexposure
to extreme heat or cold in theve hicle
If people, particular lych ildren, are exposed to
ex treme temp eratures over an extended
period of time, there is a risk of serious injury
or danger tolife. #
Never lea vepersons, children in particu-
lar, unattended in theve hicle. Ov
Ov
er
ervie
vie w of r
w of r ecommended c
ecommended c hild r
hild res
estr
traint syst
aint syst ems
ems %
Further information on the cor rect child
re straint system can be ob tained at a quali-
/ed specialist workshop. Mercedes-Benz rec-
ommends that you use a Mercedes-Benz
Service Centre forth is purpose. 58
58
Occupant saf
ety

K
K
e
ey
y Ov
Ov
er
ervie
vie w of ke
w of key functions
y functions &
W
WARNING
ARNING Risk of accident and inju rydue
to leaving children unattended in theve hi-
cle
If ch ildren are leT unattended in theve hicle,
th ey could, in particular:
R open doors, thereby endangering other
persons or road users.
R get out and be struck byoncoming tra1c.
R operate 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 unattended in the
ve hicle. #
When leaving theve hicle, alw aysta ke the
ke y with you and lock theve hicle. #
Keep theve hicle key out of there ach of
ch ildren. *
N
NOOTE
TE Damage totheke y caused bymag-
netic /elds #
Keep theke yaw ay from strong magnetic
/elds. Ve
hicle key
1 Locks
2 Indicator lamp 3
Unloc ks
4 Opens the boot lid
% If indicator lamp 2does not light up aTer
pressing theÜ orß button, the battery
is we ak or possibly dischar ged. Re place the
battery as soon as possible.
Re place theke y battery (/ page 76).
The key loc ksand unloc ksthefo llowing compo-
nents:
R Doors
R Fuel /ller 0ap
R Boot lid
If th eve hicle is not opened within appr oximately
40 seconds aTer unlocking, it loc ksagain. Anti-
th eT pr otection is primed again.
Do not keep theke yto get her with elect ronic devi-
ces or me tal objects. This can a.ect theke y's
functionalit y. 74 74
Opening and closing

*
N
NO
OTE
TE Damage tothe soT top due to
heavy objects Heavy, poin
ted or sharp-edged objects placed
on the soT top may damage it. #
Do not place any heavy objects on the
soT top. #
Do not sit on the soT top. Fo
r saf etyre asons, Mercedes-Benz recommends
opening or closing the soT top when theve hicle is
stationar y.
To open or close the soT top while you are driving,
do not exceed a maximum speed of 50 km/h. To
avo id inter rupting the closing process while you
are slightly exceeding this speed, do not drive at a
speed greater than 60 km/h. #
Make sure that the boot separator is closed. #
Close the boot lid. #
Switch on theve hicle. #
Keep the brake pedal depressed when the
ve hicle is stationar y. #
T To open: o open: pull and hold soT-top switch 1until
th e soT top is fully open.
The instrument display will show the opening
process of the soT top. #
T To close:
o close: press and hold soT-top switch 1
until the soT top is fully closed.
The instrument display will show the closing
process of the soT top. &
W WARNING
ARNING Risk of accident due toexces-
sive speed during the soT top opening or
closing procedure
If th eve hicle speed exceeds 60 km/h, the
soT top will stop during the opening or closing
procedure. #
Reduce theve hicle speed tobelow
60 km/h or stop theve hicle in accord-
ance with the tra1c conditions. #
Operate the soT- topswitch again to
open or close the soT top full y. The cur
rent procedure will be stopped at a speed
gr eater than 60 km/h. The message is shown on
th e inst rument displa y. #
Reduce your speed and press or pull soT- top
switch 1again.
If th e soT top does not close fully because of
strong headwinds, drive more slo wlyor stop. 86
86
Opening and closing