tow MERCEDES-BENZ E-CLASS CABRIOLET 2021 Service Manual

N
N
o
ot
tes on t
es on t ec
echnical data
hnical data
* NO
NOTE
TEMercedes-AMG vehicles #
Obser vethe no tes in the Supplement.
Yo u could otherwise failto recognise
dangers. The
tech nical data was de term ined in accordance
with EU Directives. The data stated only applies to
ve hicles with standard equipment. You can obtain
fur ther information from a Mercedes-Benz Service
Centre.
Onl Onl y f
y for cert
or cert ain countr
ain countr ies:
ies:you can /n dvehicle-
speci/c vehicle data in theCO C documents (CER-
TIFIC ATE OF CONFORMITY). These documents
are deli vered with your vehicle. On-boar
On-boar
d electr
d electronics
onics N
No
ot
tes on t
es on t am
amper
per ing wit
ing wit h t
h t he engine electr
he engine electr onics
onics *
N
NOOTE
TE Prematu rewe arthro ugh improper
maintenance Improper maintenance may cause
vehicle
components towe ar more quickly and the
ve hicle's operating permit may be in validated. #
Always ha veworkon the engine elec-
tronics and related components car ried
out at a quali/ed specialist workshop. T
T
w
w o-wa
o-wa y r
y radios
adios N
No
ot
tes on
es on /tting
/tting tw
two-wa
o-wa y r
y radios
adios &
W
WARNING
ARNING Risk of accident due to
improper workon two-w ayradios
If two-w ayradios are manipulated or retro/t-
ted incor rectl y,the electromagnetic radiation
from the two-w ayradios can inter fere with the
ve hicle elect ronics and jeopardise the operat-
ing saf ety of theve hicle. #
You should ha veall workon electrical
and electronic components car ried out
at a quali/ed specialist workshop. &
W
WARNING
ARNING Risk of accident due to
improper operation of two-w ayradios
If yo u use two-w ayradios in theve hicle
improper ly,th eir electromagnetic radiation
can disrupt theve hicle's elect ronics. This is
th e case in thefo llowing situations, in particu-
lar:
R The two-w ayradio is not connected toan
ex terior aerial.
R The exterior aerial is /tted incor rectly or is
not a lo w-re0ection aerial.
This could jeopardise the operating saf ety of
th eve hicle. #
Have the lo w-re0ection exterior aerial /t-
ted at a quali/ed specialist workshop. #
When operating two-w ayradios in the
ve hicle, alw ays connect them tothe lo w-
re 0ection exterior aerial. Te
ch nical data
353
353

Before
changing over towinter diesel fuel, the fuel
ta nk should be em pty, if possible. When /rst refu-
elling wi thwinter diesel fuel, keep the fuel le vel
lo w, e.g. toreser veleve l. The fuel tank can be /l-
led as usual when next refuelling.
Fu rther information on fuel can be obtained at a
/lling station or a quali/ed specialist workshop.
T
T ank cont
ank cont ent and fuel r
ent and fuel r eserve
eser ve
The tota l capacity of the fuel tank may vary,
depending on theve hicle equipment. T
T o
o t
tal capacity and r
al capacity and r eserv
eserve fuel t
e fuel t ank
ank Mode
lT ot
Mode lT otal capacity
al capacity
E 300
E 350
E 450 4MATIC 66.0 lit
res
All other model s5 0.0 litres
or
66.0 litres Model Model
of whic
of which r
h r eserv
eserv e fuel
e fuel
All models 7.0 litres A
A
dBlue
dBlue ®
®
(v
(vehicles wit
ehicles wit h a diesel engine onl
h a diesel engine onl y)
y) N
No
ot
tes on A
es on A dBlue
dBlue®
®
Obser vethe no tes on operating 0uids
(/ page 358).
Ad Blue ®
is a water-soluble 0uid forth e NOx
ex haust gas aTertreatment of diesel engines.
It may be improper or punishable in some coun-
tries tooperate a vehicle that uses no AdBlue ®
or one
that does not comply with the speci/cations
of these operating inst ructions.
* N
NO OTE TE Malfunctions due tothe dilution of
Ad Blue ®
or the use of additive-enhanced
Ad Blue ® The function of
the NOx exhaust gas aTer-
treatment can be impaired bythe use of
unsuitable denoxi/cation agents. #
Only use AdBlue ®
in acco rdance with
ISO 22241. #
Do not dilu teAd Blue ®
wi th wa ter. #
Do not use additive-enhanced AdBlue ®
. *
N NOOTE TE Dama geand malfunctions due to
impurities in AdBlue ® Consequences of impurities in
AdBlue ®
:
R increased emission values
R damage tothe catalytic con verter
R NOx exhaust gas aTertreatment malfunc-
tions 362
362
Te
ch nical data

V
V
ehicle height when opening/closing t
ehicle height when opening/closing t he r
he roof
oof Model
Model
E 200 4MATIC
E 220 d 4MATIC
E 300 d 4MATIC
2016 mm
E 400 d 4MATIC
E 450 4MATIC 2017 mm
All other model s2 008 mmW W
eights and loads
eights and loads Please obser
vethefo llowing no tesfo rth e speci-
/ed vehicle data:
R Items of optional equipment increase the unla-
den weight and reduce the pa yload.
R You will /n dvehicle-speci/c weight informa-
tion on theve hicle identi/cation plate
(/ page 356). T
T
r
railer hitch
ailer hitch Gener
Gener
al not
al notes on t
es on t he tr
he trailer hitch
ailer hitch Modi/cations
tothe engine cooling system may
be necessar y,depending on theve hicle model.
The retro/tting of a trailer hitch is on lypermissi-
ble if a towing capacity is speci/ed in your vehicle
documents.
Fu rther information can be obtained at a quali/ed
specialist workshop. Mounting dimensions Mounting dimensions
1
Fastening points
2 Overhang dimension
3 Rear axle cent reline 368
368
Te
ch nical data

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
*T heyellow ! indicator lamp is lit and there d! indicator lamp 0ashes for appr oximately ten seconds aTer the
electric parking brake has been applied or released. It then remains lit or goes out. The electric parking brake is mal-
functioning.
If t
If t he st he st at
ate of c
e of c harg
harge is t
e is t oo low
oo low :
: #
Char gethe 12 V batter y.
T
T o apply
o apply :
: #
Switch o. theve hicle.
The elect ric parking brake will be applied automatical ly.
If yo u do not wantthe electric parking brake tobe applied, e.g. at an automatic car wash or when theve hicle is being
to we d, lea vetheve hicle switched on. This does not include having theve hicle towe d with there ar axle raised.
If th e electric parking brake is not applied automaticall y: #
Switch theve hicle o. and switch it back on #
Release and then apply the electric parking brake manually (/ page 182).
If it is still not possible toapply the electric parking brake: #
Consult a quali/ed specialist workshop. #
Where necessar y,also secure the par kedve hicle against rolling away.
T
T o r
o r elease:
elease: 396
396
Display messages and
warning/indicator lamps

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Drive on
or #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra1c conditions and restart
th eve hicle.
Blind Spot Assist inopera-
tive *B
lind Spot Assist is malfunctioning. #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop.
Blind Spot Assist not availa-
ble when towing a trailer
See Owner's Manual *W
hen you establish the electrical connection tothe trailer, Blind Spot Assist will be una vailable. #
Press the leT-hand Touch Control and ackno wledge the display message.
Active Blind Spot Assist
currently unavailable See
Owner's Manual *A
ctive Blind Spot Assist is temp orarily una vailable.
The system limits ha vebeen reached (/ page 212).
Once the cause of the problem is no longer present, the system will be available again. #
Drive on
or #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra1c conditions and restart
th eve hicle. Displ
aymessages and warning/indicator lamps
405 405

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Active Blind Spot Assist
inoperative *A
ctive Blind Spot Assist is malfunctioning. #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop.
Active Blind Spot Assist
not available when towing
a trailer See Owner's Man-
ual *W
hen you establish the electrical connection tothe trailer, Active Blind Spot Assist will be una vailable. #
Press the leT-hand Touch Control and ackno wledge the display message.
Active Lane Keeping Assist
currently unavailable See
Owner's Manual *A
ctive Lane Keeping Assist is temp orarily una vailable.
The ambient conditions are outside the system limits (/ page 214).
As soon as the ambient conditions are within the system limits, the system will become available again. #
Drive on
Active Lane Keeping Assist
inoperative *A
ctive Lane Keeping Assist is malfunctioning. #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop. 406 406
Displ
aymessages and warning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ï
Tr ailer tow hitch warning
lamp *T
hered trailer hitch warning lamp is lit.
The trailer hitch is not operational. &
W
WARNING
ARNING Risk of an accident if the ball neck is not loc ked
The trailer may become de tach ed. #
Stop theve hicle immediately in accordance with the tra1c conditions. Do not continue driving. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivel mo vement and do not re-couple the trailer until thewa rning/indicator lamp goes out. #
Notethe messages on the instrument displa y.Engine
Engine
W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
ÿ
Coolant warning lamp (red) *T
he red coolant warning lamp is lit while the engine is running.
Po ssible causes:
R The temp erature sensor is malfunctioning
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty Display message
s andwarning/indicator lamps
433
433

Airbag
Airbag
Activation................................................ 40
Au tomatic co-driver airbag shuto............ .49
Fr ont airbag (driver, front passenger)........ 46
Head airbag............................................ .46
Ins tallation locations................................ 46
Knee airbag............................................. 46
Overview.................................................. 46
PA SSENGER AIR BAG indicator la mps...... 50
Pr otection................................................ 47
Re duced pr otection.................................. 48
Side airbag.............................................. 46
AIRC
AIRC AP
AP
Ac tivating................................................. 88
Deactivating............................................. 88
Air0ow
Air0ow
Setting................................................... 142
AIRSC
AIRSC ARF
ARF
Ad justing the outlets.............................. 152
Switching on/o.....................................1 09
Alar
Alar m syst
m syst em
em
see ATA (anti-theT alarm system)
All-wheel dr
All-wheel dr ive
ive
see 4M ATIC Ambient lighting
Ambient lighting
Setting (MBUX multimedia system)........ .133
Andr
Andr oid A
oid A uto
uto
see Smartphone integ ration
Animals
Animals Pets in theve hicle.................................... 73
Anti-loc
Anti-loc k br
k braking syst
aking syst em
em
see ABS (Anti-lock Braking System)
Anti-skid c
Anti-skid c hains
hains
see Sn owchains
Anti-t
Anti-theT heTprot
pr otection
ection
Ad ditional door loc k................................. 77
Immobiliser.............................................. 95
Anti-t
Anti-theT heTprot
pr otection
ection
see ATA (anti-theT alarm system)
Anticipat
Anticipat or
ory occupant pr ot
y occupant pr otection
ection
see PRE-SAFE ®
(anticipatory occu-
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay
Apple CarPlay ®
®
see Smartphone integ ration Assist
Assist
ance syst
ance syst ems
ems
see Driving saf ety sy stem
ASS YS
ASS YST PL
T PL US
US
Battery disconnection period s................ 299
Displaying the service due dat e.............. 298
Fu nction/no tes...................................... 298
Re gular maintenance work..................... 298
Special service requ irements................. 298
AT
ATA A(anti-t
(anti-theT heTalar
alarm syst
m syst em)
em)
Deactivating the alarm............................. 96
Fu nction.................................................. 95
Interior pr otection function....................... 97
Priming/deactivating interior pr otection... 97
Priming/deactivating tow- awa y pro-
te ction..................................................... 97
To w- awa y protection function................... 96
A
A TTENTION ASSIST
TTENTION ASSIST
Function................................................ 190
Setting.................................................. .191
System limitations.................................. 190
A
A tt
tt ention assist
ention assist ant
ant
see ATTENTION ASSIST
A
A ut
ut hor
hor ised w
ised w ork
orkshop
shop
see Quali/ed specialist workshop Index
447
447

Dat
Dat
a acq
a acq uisition
uisition
Ve hicle..................................................... 35
Dat
Dat a pr ot
a pr otection r
ection r ights
ights
Data storag e............................................ 38
Dat
Dat a st
a st or
orage
age
Data pr otection rights.............................. 38
Electronic control units............................ 35
Online services........................................ 37
Ve hicle..................................................... 35
Deactiv
Deactiv ating t
ating the alar
he alar m (AT
m (ATA)
A)........................... 96
Dealer
Dealer ship
ship
see Quali/ed specialist workshop
Declar
Declar ation of conf
ation of conf or
ormity
mity
Elect romagnetic compatibilit y.................. 24
Jack......................................................... 30
Speci/c absor ption rate........................... 24
TIREFIT kit................................................ 31
Wi reless vehicle component s................... 24
Decor
Decor ativ ative f
e foil (cleaning ins
oil (cleaning instr tructions)
uctions)........... 308
DeN
DeNOx ag Ox ag ent
ent
see AdBlue ®
Des
Destination entry tination entry
Entering a POI or addres s....................... 268 Det
Det
ecting inatt
ecting inatt entiv
entiveness
eness
see ATTENTION ASSIST
Diagnos
Diagnostics connection tics connection.................................. 31
Diesel
Diesel Low outside temp eratures...................... 361
No tes..................................................... 361
Digit
Digit al Owner's Manual
al Owner's Manual.................................. 18
Dingh
Dingh yto
y to wing
wing
see Tow- bar system
DIRECT SELECT lev
DIRECT SELECT lev er
er
Engageing reve rsege ar.......................... 168
Engaging drive position.......................... 169
Engaging neutral................................... .168
Engaging park position automaticall y...... 168
Fu nction................................................ 167
Selecting park position........................... 168
Displa Displa y (car
y (care)
e)............................................... 312
Displa
Displa y (MBUX multimedia syst
y (MBUX multimedia syst em)
em)
Home sc reen.........................................2 56
Operating.............................................. 257
Displa
Displa y (on-boar
y (on-boar d com
d comput
puter)
er)
Displa yson the inst rument displa y......... 251 Displa
Displa
y in t
y in the windscr
he windscr een
een
see Head-up display
Displa
Displa y message
y message
Calling up (on-board computer).............. 371
No tes..................................................... 371
Displa
Displa y messag
y messag es
es
ç - - - km/h.................................... .400
È - - - km/h..................................... 400
h - - - km/h..................................... 399
# 12 V battery See Owner's Man-
ual......................................................... 416
K 12 V battery See Owner's Man-
ual......................................................... 378
Û 48 V battery See Owner's Man-
ual......................................................... 418
: Active Light System inoperative..... 380
¯ AdBlue system fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km.................................................. 426
¯ AdBlue system fault Emer gency
op. in XXX miles See Owner's Manual.... 425 452
452
Ind
ex

Ac
tive Blind Spot Assist not available
when towing a trailer See Owner's
Manual................................................. .406
Ac tive bonnet malfunction See Own-
er's Manual............................................ 386
Ac tive Brake Assist Functions cur-
re ntly limi ted See Owner's Manual .........414
Ac tive Brake Assist Functions limi ted
See Owner's Manual.............................. 415
Ac tive Distance Assist available again ..... 402
Ac tive Distance Assist cur rently
una vailable See Owner's Manual ............ 401
Ac tive Distance Assist inoperative.......... 401
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual ............ 406
Ac tive Lane Keeping Assist inoperative... 406
Ac tive Steering Assist cur rently
una vailable due tomultiple emer-
ge ncy stops........................................... 403 Ac
tive Steering Assist cur rently
una vailable See Owner's Manual ............ 402
Ac tive Steering Assist inoperative...........4 02
Ac tive Stop-and-Go Assist cur rently
una vailable see Owner's Manual .............403
Ac tive Stop-and-Go Assist inoperative
See Owner's Manual.............................. 404
Ad aptive Highbeam Assist cur rently
una vailable See Owner's Manual ............ 381
Ad aptive Highbeam Assist inoperative ....3 81
Ad aptive Highbeam Assist Plus cur-
re ntly una vailable See Owner's Manual ... 381
Ad aptive Highbeam Assist Plus inop-
erative.................................................. .382
Apply brake todeselect Park (P) posi-
tion....................................................... .391
Apply brake toselect D or R ...................392
Apply brake toselect R .......................... 392
Au xiliary battery malfunction (red dis-
play message) ....................................... .394 Au
xiliary battery malfunction (white
displ aymessage) .................................... 393
Beginning emer gency stop..................... 403
Blind Spot Assist cur rently una vailable
See Owner's Manual.............................. 404
Blind Spot Assist inoperative.................. 405
Blind Spot Assist not available when
to wing a trailer See Owner's Manual ...... 405
Cann otstart engine See Owner's
Manual.......................................... 388, 418
Check brake pads See Owner's Man-
ual......................................................... 398
Check ty repressures then restart Run
Flat Indicator......................................... 423
Cruise control and Limiter inoperative.... 399
Cruise control inoperative...................... 399
Cruise control o....................................4 00
Device de tected at diagnostics con-
nection See Owner's Manual................. .416 Index
455 455