charging MERCEDES-BENZ E-CLASS CABRIOLET 2020 User Guide

&
WARNING Risk ofexplosion during
ch arging process and starting assis tance
During thech arging process and starting
assis tance, the battery may release an explo‐
sive gas mixture. #
Avoid fire , naked flames, creating
spar ksand smoking. #
Make sure there is suf ficient ventila‐
tion. #
Do not lean over a batter y. &
WARNING Risk ofexplosion from a fro‐
zen battery
A dischar ged battery may freeze at temp era‐
tures slightly abo veor below freezing point.
During starting assis tance or battery charg‐
ing, bat tery gas can be released. #
Alw ays allow a battery tothaw before
ch arging it or per form ing starting assis‐
ta nce. If
th e indicator/warning lamps in the instrument
clus ter do not light up at low temp eratures, it is
ve ry likely that the dischar ged battery has fro‐
zen. In this case you may neither jump-s tart the
ve hicle nor charge the batter y.
The service life of a battery that has been
th awe d may be dramatically shor tened. The
st arting characteristics may be impaired, espe‐
cially at low temp eratures.
It is recommended that you ha veathaw ed bat‐
te ry checked at a qualified specialist workshop.
All vehicles
* NO
TEDama gecaused bynumerous or
ex tended attem ptsto start the engine Nume
rous or extended attem ptsto start the
engine may damage the catalytic con verter
due tonon-combu sted fuel. #
Avoid numerous and extended attem pts
to start the engine. Obser
vethefo llowing points during starting
assis tance and when charging the battery:
R Only use undamaged jump lead/charging
cables with a suf ficient cross-section and
insula tedte rm inal clamps.
R Non- insulated parts of thete rm inal clamps
must not come into con tact wi thother me tal
parts while the jump lead/charging cable is
connected tothe battery/jump-s tart connec‐
tion point.
R The jump lead/charging cable must not
come into contact wi thany parts which may
mo vewhen the engine is running.
R Alw ays make sure that nei ther you nor the
battery is elect rostatically charge d.
R Keep away from fire and naked flames.
R Do not lean overth e batter y.
Obser vethe additional following points when
ch arging the battery:
R Only use battery charge rs tested and
appr oved for Mercedes-Benz.
R Read the battery charge r's operating instruc‐
tions before charging the batter y. Breakdown assis
tance 315

Obser
vethe additional following points during
st arting assistance:
R Starting assis tance may only be pr ovided
using vehicles, batteries or other jump start
devices with a nominal voltage of 12V.
R The vehicles must not touch.
R Vehicles with a petrol engine: jump-start
th eve hicle only when the engine and exhaust
sy stem are cold. St
arting assi stance and charging the12 V
battery Requ
irements:
R The vehicle is secured with the electric park‐
ing brake.
R Vehicles with automatic transmission: the
transmission is in position j.
R The ignition and all electrical consumers are
switched off.
R The bonnet is open. Example: engine compartment
#
Slide co ver1 of positive clamp 2onthe
jump-s tarting connection point in the direc‐
tion of the ar row. #
Connect positive clamp 2onyour vehicle to
th e positive pole of the donor battery using
th e jump lead/charging cable. Alw ays begin with positive clamp
2onyour ow nve hicle
fi rs t. #
During starting assi stance: start the
engine of the donor vehicle and run at idle
speed. #
Connect the negative pole of the donor bat‐
te ry and ear thpoint 3ofyour ow nve hicle
by using the jump lead/charging cable. Begin
with the donor battery firs t. #
During starting assi stance: start the
engine of your ow nve hicle. #
During thech arging process: start the
ch arging process. #
During starting assi stance: letthe engines
ru nfo r se veral minutes. #
During starting assi stance: before discon‐
necting the jump lead, switch on an electrical
consumer in your ow nve hicle, e.g. there ar
wind owheater or lighting.
When thest arting assis tance/charging process
is compl ete, per form thefo llowing steps: 316
Breakdown assis tance

#
First,re mo vethe jump lead/charging cable
from ear thpoint 3and the negative pole of
th e donor batter y,then from positive clamp
2 and the positive pole of the donor bat‐
te ry. Begin ea chtime wi th the conta cts on
yo ur ow nve hicle firs t. #
Afterre moving the jump lead/charging
cable, close co ver1 of positive clamp 2.
Fu rther information can be obtained at a quali‐
fi ed specialist workshop. Re
placing the 12V battery #
Obser vethe no tes on the12 V battery
(/ page 312).
Me rcedes-Benz recommends that you ha vethe
12 V battery replaced at a qualified specialist
wo rkshop, e.g. at a Mercedes-Benz Service
Centre. Obser
vethefo llowing no tes if youwa ntto
re place the battery yourself:
R Alw aysre place a faulty bat tery with a battery
which meets the specific vehicle require‐
ments.
The vehicle is equipped with an AGMtech nol‐
ogy battery (Absorbent Glass Mat) or a li th‐
ium-ion batter y.Fu llve hicle functionality is
only guaranteed with an AGM battery or lith‐
ium-ion batter y.Fo r saf etyre asons,
Mercedes-Benz recommends that you on ly
use bat teries which ha vebeen tested and
appr ovedfo ryo ur vehicle byMercedes-Benz.
R Carryove r de tach able parts, such as vent
hoses, elbow fittings or term inal co vers from
th e battery being replaced.
R Make sure that theve nt hose is al ways con‐
nected tothe original opening on the side of
th e batter y.
Fit any existing or supplied cell caps.
Otherwise, gases or battery acid could
escape.
R Make sure that de tach able parts are recon‐
nected in the same way. To
w- starting or towing away Pe
rm itted towing me thods *
NO
TEDama gefrom auto matic braking If one of
thefo llowing functions is switched
on, theve hicle brakes automatically in cer‐
ta in situations:
R Active Brake Assi st
R Active Dis tance Assi stDISTRONIC
R HOLD function
R Active Parking Assist
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations: #
During towing #
In a car wash Mercedes-Benz
recommends transporting your
ve hicle in the case of a breakdown, rath er than
to wing it away. Breakdown assis
tance 317

Display messages
Possible causes/consequences and M
MSolutions
Ý Please wait 48 V battery
charging *T
he 48 V battery is dischar ged. You ha veswitched on the ignition while the12 V battery was being charge d with a
suitable charge r or while ano ther vehicle was pr oviding starting assis tance.
The discha rged 48 V battery is charge d automatically via thevo ltage con verter. Af ter a few minutes, theMotor can
be started again display message will be shown on the multifunction displa y. #
Start the engine. #
Drive theve hicle for a while tocharge the12 V battery and the 48 V battery af ter disconnecting thech arger
from theve hicle.
If th eMotor can be started again display message does not appear af ter a few minutes: #
Tryto start the engine again. #
Ifth e engine does not start, consult a qualified specialist workshop.
Cannot start engine See
Owner's Manual *T
hecharge leve l of the 48 V battery is too lo w.You can no lon gerst art the engine. #
Switch off electrical consumers that are not required. #
Connect a suitable charge r appro vedfo r Mercedes-Benz with suf ficient charge output tothe jump-s tart connec‐
tion point of the12 V battery (/ page316).
The 48 V bat tery isch arge d via thevo ltage con verter in theve hicle.
Motor can be started again *T
he 48 V battery has been charge d automatically via thevo ltage con verter. #
Start the engine and drive theve hicle for a while tocharge the12 V battery and the 48 V batter y. 404
Display messages and warning/indicator lamps

At
tention assistant
see ATTENTION ASSIST
Au thorised workshop
see Qualified specialist workshop
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights .........................12 3
Au tomatic engine start (ECO start/
sto p function) .......................................... 15 8
Au tomatic engine stop (ECO start/
sto p function) .......................................... 15 8
Au tomatic front passen ger front air‐
bag deacti vation sy stem
see Automatic front passenger front
airbag shutoff
Au tomatic front passen ger front air‐
bag shu toff ........................................... 45, 47
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 45
PA SSENGER AIR BAG indicator lamp .... .47
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .138 Au
tomatic seat adjustment
Setting ................................................ .102
Au tomatic transmission
DIRECT SELECT le ver ........................... 16 4
Drive program display .......................... 16 3
Drive programs .................................... 16 2
DY NA MIC SELECT switch .................... 16 2
Engaging drive position ....................... 16 6
Engaging neutral .................................. 16 5
Engaging pa rkposition ........................ 16 6
Engaging reve rsege ar ........................ .165
Kickdown ............................................. 167
Manual gear changing ........................ .166
St eering wheel gearshift paddles ........ .166
Tr ansmission position display .............. 16 4
Tr ansmission positions ........................ 16 4
Axle load Perm issible .......................................... 343
Tr ailer operation .................................. 357 B
Bag hook .................................................. .117 Ball ne
ck
Extending/r etra cting (MBUX multi‐
media sy stem) .....................................2 36
Fo lding out/in .................................... .234
BA S (Brake Assist Sy stem) .................... .182
Battery Key ........................................................ 73
Re mo tecontrol (s tationary heater) ...... 14 6
Battery see Battery (vehicle)
Battery (vehicle) ...................................... 317
Charging .............................................. 316
Charging (Remo teOnline) .................... 15 3
No tes ................................................... 312
No tes (s tarting assis tance and
ch arging) .............................................. 314
Re placing .............................................3 17
St arting assis tance .............................. 316
Belt see Seat belt
Bic ycle rack
Load capacity ...................................... 357
Tr ailer operation .................................. 239 432
Index

Mercedes me app
Information .......................................... 273
Mercedes me calls Arranging a service appointment ......... 271
Calling the Mercedes-Benz Cus tomer
Centre ................................................. 270
Calling the Mercedes-Benz Cus tomer
Centre af ter auto matic accident or
breakdown de tection ........................... 270
Consenting todata transfer .................2 71
Information ..........................................2 70
Making a call via theove rhead con‐
trol panel ............................................. 269
Tr ans ferred data ..................................2 72
Mercedes me connect Accident and Breakdown Manage‐
ment .................................................... 268
Information .......................................... 267
Tr ans ferred data ..................................2 69
Mercedes-AMG vehicles
No tes ................................................... 15 0
Mercedes-Benz emer gency call sys‐
te m ............................................................ 276
Au tomatic emergency call ................... 277Information ..........................................2
76
Information on data transfer ................ 278
Manual emer gency call ........................ 278
Overview ..............................................2 76
Self-diagnosis (Russia) ........................ 279
St arting/ending ERA-GLONASS test
mode .................................................. .279
Mercedes-Benz Link see Smartphone integration
Mercedes-Benz service centre see Qualified specialist workshop
Message (multifunction display) see Display message
Message memory .................................... 359
Mir rors
see Outside mir rors
Mobile phone Frequencies ......................................... 342
Tr ansmission output (maximum) ........ .342
Wi reless charging ................................ 12 0
Mobile phone see Smartphone integration
see Telephone Model series
see Vehicle identification plate
MOExtended tyres ..................................3 06
Mo torw ay mode ....................................... 12 6
MULTIBEAM LED ...................................... 12 5
Multifunction display Overview of the displa ys...................... 24 5
Multifunction steering wheel
Overview of buttons ............................ 24 3
Multifunction steering wheel
see Steering wheel
Multimedia sy stem
see Display (multimedia sy stem)
see MBUX multimedia sy stem
see Touchpad N
Na vigation
No tes ................................................... 257
Overview ............................................. 259
Showing/hiding the menu ...................2 58
Switching on ....................................... 258 Index
449

Re
mo teOnline
Charging thest ar ter battery ................ 15 3
Cooling or heating theve hicle inte‐
ri or .......................................................1 53
St arting theve hicle ............................. 15 3
Re scue card ............................................... 31
Re ser ve
Fu el ..................................................... 349
Re sidual heat ...........................................1 42
Re stra int sy stem ...................................... .35
Basic instructions forch ildren .............. .51
Fu nction in an accident ......................... 36
Fu nctionality .......................................... 35
Malfunction ........................................... 36
Pr otection ..............................................35
Re duced pr otection ...............................35
Self-test ................................................. 35
Wa rning lamp ........................................ 35
Re versege ar
Inserting .............................................. 16 5
Re versing camera .................................... 212
Care .................................................... .301
Fu nction ............................................... 212Opening
the camera co ver (360°
Camera) ............................................... 219
Switching au tomatic operation
on/off (360° Camera) ......................... 219
Rims (care) ............................................... 301
Ro llaw ay protection
see HOLD function
Ro ll bar
Fu nction ................................................ 49
Ro of lining (care) .................................... .302
Ro of load .................................................. 356
Ro ute ........................................................ 261
Calculating .......................................... .261
Selecting options ................................. 261
Ro ute guidance with augmented real‐
ity
Activating ............................................ .261
Displ aying stre et names and house
numbe rs.............................................. 261
Ro ute-based speed adaptation
Fu nction .............................................. 19 9
Setting ................................................. 200 Ru
n-flat characteristics
MOExtended tyres ............................... 306
Ru nning-in no tes .....................................1 54 S
Saf ety sy stems
see Driving saf ety sy stem
Saf etyve st ............................................... 304
Seat ............................................... 96, 97,11 5
4-w aylumbar support .......................... 100
Ad justing (electrically) ........................ .100
Ad justing (manually and electrically) ..... 99
Ad justing (me chanically and electri‐
cally) ...................................................... 97
Au tomatic seat adju stment ................. 102
Con figuring the settings ......................1 02
Cor rect driver's seat position ................ 96
Fo lding the backrest (rear) back ..........1 16
Fo lding the backrest (rear) forw ards .... 11 5
Fo lding the backrest forw ards/back
(with memory function) ...................... .104
Fo lding the backrest forw ards/back‐
wa rds (without memory function) ........ 105
Massage programme overview ............ 103 Index
453

see
Telephone
Sma rtphone integ ration ......................... 275
Overview ............................................. 275
Snow chains ............................................ 325
Soc ket (12 V) ............................................ 11 8
Fr ont centre console ............................ 11 8
Soft top
Care .................................................... 298
Closing (soft- top switch) ........................ 82
Closing using theke y ............................ .91
Opening (soft-top switch) ......................82
Opening with theke y ............................ .91
Problem .................................................88
Re locking .............................................. .84
Soft-top switch .......................................... 82
Software update System updates ................................... 255
Sound PRE-SAFE ®
Sound ................................. 50
Wheels and tyres ................................. 325
Sound menu Functions overview .............................. 286 Spare wheel
see Emer gency spa rewheel
Speed limit for winter tyres
Setting ................................................. 194
St andby mode
Ac tivating/deactivating ...................... .180
Fu nction .............................................. 180
St anding lights ........................................ 12 2
St art-off assi st
see Optimised acceleration
St art/s top button
Pa rking theve hicle ...............................1 74
St arting theve hicle .............................. 151
Switching on the po wer supply or
ignition ................................................ 15 0
St art/s top function
see ECO start/ stop function
St arter battery
Charging (Remo teOnline) .................... 15 3
St arting assi stance
see Jump -sta rt connection
St arting the engine
see Vehicle St
arting-o ffaid
see Hill Start Assist
St ationary heater/ventilation
Displ ays (remo tecontrol) .................... 14 6
Problems (remo tecontrol) ................... 147
Re placing the battery (remo tecon‐
trol) ...................................................... 14 6
Setting (MBUX multimedia sy stem) ..... 14 5
Setting (remo tecontrol) ...................... 14 5
Switching on/off (control panel) ......... 14 4
ST EER CONT ROL
Fu nction/no tes ................................... 185
Ste ering wheel ........................................ .243
Ad justing (electrically) ........................ .109
Ad justing (manually) ............................ 108
Buttons ................................................ 24 3
Care .................................................... 302
Operating the memory function ........... 11 2
St eering wheel heater .......................... 109
Ste ering wheel gearshift paddles ..........16 6
Ste ering wheel heater
Swit ching on/off ................................ .109
St ow age areas
see Loading Index
455

see
Stow age compartment
St ow age comp artment............................ 11 5
Armrest ................................................ 11 5
Centre console .................................... .115
Door ..................................................... 11 5
Glo vecompa rtment ............................. 11 5
St ow age comp artments
see Loading
see Stow age compartment
St ow age spaces
USB ports ............................................ 11 5
Suggestions Configuring .......................................... 253
Sulphur content ....................................... 347
Sur round lighting
Switching on/off ................................. 13 0
Sur round View
see 360° Camera
Suspension Adjusting thech assis le vel (AIR
BO DY CONTROL) .................................2 07
Suspension see AIR BODY CONTROL SV
HC (substances of very high con‐
cern ).......................................................... .30
Switch-off delay time Exterior ................................................ 13 0
Interior ................................................. 13 2
Synchronisation function Activating/deactivating (MBUX mul‐
timedia sy stem) ................................... 141
Switching on/off (control panel) .......... 141
Sy stem settings
Overview of the sy stem settings
menu ................................................... 254 T
Ta ilpipes (care) ........................................ 301
Ta ke -back of end-of-life vehicles .............. 20
Pr otection of the environment ............... 20
Ta nk content
Ad Blue ®
............................................... 350
Fu el ..................................................... 349
Re ser ve(fuel) ...................................... 349
Te ch nical data
Axle load (trailer operation) ................. 357 Fa
stening points (trailer hitch) .............3 56
Information .......................................... 341
Mounting dimensions (trailer hitch) ..... 356
No tes (trailer hitch) ............................. 356
Overhang dimension (trailer hitch) ...... 356
Ra dio operating permits ...................... 343
To ngue weight .................................... .357
To wing capacity (trailer operation) ...... 356
Ve hicle identification plate .................. 343
Te lephone ........................................ 264, 266
Connecting a mobile phone (Pass‐
ke y) ...................................................... 267
Connecting a mobile phone (Secure
Simple Pairing) .................................... 267
Fu nctions in thete lephone menu ........ 267
No tes ................................................... 264
Operating modes ................................. 266
Te lephone menu overview ...................2 66
Wi reless charging (mobile phone) ........ 12 0
Te lephony operating modes
Blue tooth ®
Te lephony .......................... 266
Making calls in theve hicle .................. 266
Te mp erature ............................................ 13 9456
Index

Wi
per blades
Ca re ..................................................... 301
Re placing .............................................1 32
Re placing (MAGIC VISION CONTROL)
.............................................................1 34
Wire lesscharging
Fu nction/no tes .................................... 11 9
Mobile phone ....................................... 12 0
Wire lessvehicle comp onents
Declaration of con form ity ...................... 24
Wo rkout prog ram
Overview ............................................. 103
Wo rkshop
see Qualified specialist workshop 462
Index