2019 MERCEDES-BENZ S-CLASS CABRIOLET Owner's Manual

&
WARNING Risk of accident when switch‐
ing off the ignition when driving
If yo u swit choff the ignition while driving,
saf ety functions are restricted or no longer
av ailable. This may af fect the po werst eering
sy stem and the brake forc e boosting, for
ex ample.
Yo u will then need touse considerably more
fo rc eto steer and brake. #
Do not switch off the ignition while driv‐
ing. &
DANG ER Risk of fata l injuries due to
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases is hazardous tohealth
and can lead topoisoning. #
Never lea vethe engine running in an
enclosed space wi thout suf ficient venti‐
lation. &
WARNING Risk of skidding and of an
accident due toshifting down on slippery
ro ad sur faces
If yo u shift down on slippery road sur faces to
inc rease the engine braking ef fect, the drive
wheels may lose traction. #
Do not shift down on slippery road sur‐
fa ces toinc rease the engine braking
ef fect. &
DANG ER Risk of fata l injury due topoi‐
sonous exhaust gases
If th eta ilpipe is bloc ked or suf ficient ventila‐
tion is not possible, poisonous exhaust gases
such as carbon monoxide may enter theve hi‐
cle. This is the case if theve hicle getsst uck
in sn ow,fo rex ample. #
Keep theta ilpipe and the area around
th eve hicle free from snow when the
engine or thest ationary heater are run‐
ning. #
Open a window on the windward side of
th eve hicle toensure an adequate sup‐
ply of fresh air. &
WARNING Risk of accident and inju ry
due tobeing under the influence of alco‐
hol and drugs while driving
Driving when under the influence of alcohol
and/or drugs is an extreme lydangerous
combination. Even small quantities of alcohol
or drugs may af fect your reflexe s, perception
and judgment.
The probability of a serious or even fata l acci‐
dent greatly inc reases if you drive when
under the influence of alcohol or drugs. #
Do not drink alcohol or take drugs while
driving, and do not allow an yone to
drive who has been drinking alcohol or
ta king drugs. Driving and pa
rking 13 5

&
WARNING Risk of accident due tothe
brake sy stem overheating
If yo u lea veyour foot on the brake pedal
when driving, the brake sy stem may over‐
heat.
This increases the braking dis tance and the
brake sy stem may evenfa il. #
Never use the brake pedal as a foot re st. #
Do not depress the brake pedal and the
accelerator pedal at the same time
while driving. *
NO
TEWearing out the brake linings by
continuously dep ressing the brake pedal #
Do not depress the brake pedal contin‐
uously whilst driving. #
Touse the braking ef fect of the engine,
shift toa lo werge ar in good time. *
NO
TEDama getothe driv etra in and
engine when pulling away #
Do not warm upthe engine while the
ve hicle is stationar y.Pull away immedi‐
atel y. #
Avoid high engine speeds and driving at
full thro ttle until the engine has reached
its operating temp erature. *
NO
TEDama getothe catalytic con verter
due tonon-combu sted fuel The engine is not
running smo othly and is
misfiring.
Non-combus ted fuel may get into the cata‐
lytic con verter. #
Only depress the accelera tor pedal
slightl y. #
Have the cause rectified immediately at
a qu alified specialist workshop. Limited braking ef
fect on salt-trea tedro ads:
R Due tosalt build-up on the brake discs and
brakepads, the braking dis tance can increase
conside rably or result in braking only on one
side
R Maintain a much greater safe dis tance tothe
ve hicle in front
To preve nt salt build-up:
R Brake occasionally while paying attention to
th e tra ffic conditions
R Carefully depress the brake pedal at the end
of the journey and when starting the next
journey ECO
start/s top function Ope
ration of the ECO start/s top function
Mercedes -AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognize dangers. 13 6
Driving and pa rking

The engine is automatically switched off if
the
fo llowing conditions are me t:
R you brake theve hicle toast andstill in trans‐
mission position 005Bor005C.
R if all vehicle conditions for an auto matic
engine stop are met.
The 00D6 symbol appears in the multifunction
display when theve hicle is stationar y.
The engine is restar ted automatically if:
R youre lease the brake pedal in transmission
position 005Bwhen the HOLD function is not
active.
R you shift from transmission position 005D.
R you en gage transmission position 005Bor005E.
R you depress the accelera tor pedal.
R youch ange theve hicle le vel.
R you open or close the soft top.
R an automatic engine start is necessar y.
If th e engine was switched off bythe ECO start/
st op function and you lea vetheve hicle, a warn‐
ing tone sounds. The Vehicle Operational Switch the Ignition Off Before Exiting
displaymessa ge
also appears in the multifunction displa y.Ifyou
do not switch off the ignition, the ignition is
automatically switched off af ter one minute.
Deactivating or activating the ECO start/
sto p function #
Press button 1.
If indicator la mp2lights up, the ECO start/
st op function is activated. ECO display function
The ECO display summarizes
the driving charac‐
te rist ics from thest art of the journey toits com‐
pletion and assists you in achieving the most
economical driving style.
Yo u can influence consum ption if you:
R drive with particular care
R drive theve hicle in drive program ;
R obser vethege arshift recommendations Driving and pa
rking 137

The inner segment lights up green and
the outer
segment fills up:
R 1 Moderate acceleration
R 2 Gentle decele ration and rolling
R 3 Consis tent speed
The inner segment is gr ayand the outer seg‐
ment em pties:
R 1 Sporty acceleration
R 2 Heavy braking
R 3 Fluctuations in speed
Yo u ha vedriven economically when:
R theth re e outer segments are comple tely fil‐
led simultaneously
R the ECO display border lights up
The additional range achi eved as a result of your
driving style in comparison with a driver with a
ve ry sporty driving style is shown under Bonus
fr. Start . Therange displ ayed does not indicate a
fi xe dre duction in consum ption. DY
NA MIC SELECT switch Fu
nction of theDY NA MIC SELECT switch Mercedes-AMG
vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognize dangers.
Use theDY NA MIC SELECT switch tochange
between thefo llowing drive programs:
R = (Individual): individual settings
R B (Sport Plus): particularly sporty driving
st yle
R C (Sport): sporty driving style
R A (Comfort): comfortable and economi‐
cal driving style
Depending on the drive program selected, the
fo llowing vehicle characteristics will change:
R Drive sy stem:
- Engine and transmission management
- Active Dis tance Assi stDISTRONIC
R ESP ®
R Suspension R
Steering Selecting
the drive prog ram #
Press DYNA MIC SELECT switch 1forw ards
or backwards.
The drive prog ram selected appears in the
multifunction displa y.13 8
Driving and pa rking

Configuring drive prog
ram I Multimedia sy
stem:
, Vehicle .
e DYNAMIC
SELECT .
Individual #
Select the individual setting. Switching
the operation feedba ckfor drive
prog ram on/o ff Multimedia sy
stem:
, Vehicle .
e DYNAMIC SELECT #
Switch Notification for User on0073 or off 0053.
When this function is active, a cor responding
message is shown in the media display when
a drive prog ram is selected with the
DY NA MIC SELECT switch. Displaying
vehicle data Multimedia sy
stem:
, Vehicle .
e DYNAMIC SELECT #
Select Vehicle Data.
The vehicle data is displa yed. Displaying engine data
Multimedia sy
stem:
, Vehicle .
e DYNAMIC SELECT #
Select Engine Data.
% The values for engine output and engine tor‐
qu e may deviate from the nominal values.
Items that can influence this are, forex am‐
ple:
R Sea le vel
R Fuel grade
R Outside temp erature Au
tomatic transmission DIRECT SELECT le
ver Fu
nction of the DIRECT SELECT le ver &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could:
R open doo rs,th ereby endangering other
persons or road users.
R get out of theve hicle and be hit by
oncoming traf fic.
R ope rate ve hicle equipment and become
trapped, forex ample.
In addition, children could also set theve hi‐
cle in motion, forex ample, by:
R releasing the parking brake.
R shifting the automatic transmission out of
park position 005D.
R starting the engine Driving and parking
13 9

#
Never lea vechildren and animals unat‐
te nded in theve hicle. #
When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle. #
Keep the SmartK eyout of there ach of
ch ildren. &
WARNING Risk of accident due toincor‐
re ct gearshifting
If th e engine speed is higher than the idle
speed and you en gage the transmission posi‐
tion 005Bor005E, theve hicle may accelerate
sharply. #
Ifyo u en gage the transmission position
005B or005E always depress the brake
pedal firm lyand do not accelerate at
th e same time. Use
the DIRECT SELECT le verto shift the trans‐
mission position. The cur rent transmission posi‐
tion is displ ayed in the multifunction displa y. 005D
Park position
005E Reversege ar
005C Neut ral
005B Drive position En
gaging reve rsege ar R #
Depress the brake pedal and push the
DIRECT SELECT le ver upwards past thefirst
point of resis tance.
The transmission position displ aysho ws005E
in the multifunction displa y.
Engaging neut ral N #
Depress the brake pedal and push the
DIRECT SELECT le ver up or down tothefirst
point of resis tance.
The transmission position displ aysho ws005C
in the multifunction displa y.
Subsequently releasing the brake pedal will
allow youto mo vetheve hicle freel y,e.g. topush
it or tow it away.
If yo uwa ntthe automatic transmission to
re main in neutral N even if the ignition is
switched off: #
Start theve hicle. #
Depress the brake pedal and engage neutral
005C. #
Release the brake pedal. #
Switch the ignition off. 14 0
Driving and pa rking

%
Ifyo uth en exitth eve hicle leaving the
SmartK eyintheve hicle, the automatic trans‐
mission remains in neutral 005C.
Engaging park position P #
Obser vethe no tes on parking theve hicle
(→ page 145). #
Press the005D button.
The transmission position display sho ws005D
in the multifunction displa y.
Pa rk position 005Dis engaged automatically if one
of thefo llowing conditions is me t:
R you swit chthe engine off with the transmis‐
sion in position 005Bor005E.
R you open the driver's door when theve hicle
is at a standstill or when driving at a very low
speed and the transmission is in position 005B
or 005E.
Engaging drive position D #
Depress the brake pedal and push the
DIRECT SELECT le ver down past thefirst
point of resis tance.
The transmission position displ aysho ws005B
in the multifunction displa y. When
the automatic transmission is in transmis‐
sion position 005B, it shiftsthege ars automati‐
call y.This depends on thefo llowing factors:
R The selected drive program
R The position of the accelera tor pedal
R The driving speed Manual
gearshifting &
WARNING Risk of skidding and of an
accident due toshifting down on slippery
ro ad sur faces
If yo u shift down on slippery road sur faces to
inc rease the engine braking ef fect, the drive
wheels may lose traction. #
Do not shift down on slippery road sur‐
fa ces toinc rease the engine braking
ef fect. When
the automatic transmission is shif tedto
position 005B,you can manually shift it with the
st eering wheel paddle shif ter.If permitted, the
automatic transmission shifts tothe next gear
up or down depending on thesteering wheel
paddle shif ter being pulled.
Yo u ha vetwo options tomanually shift the auto‐
matic transmission:
R Temp orary setting
R Perm anent setting
The gears shift automatically when manual gear‐
shifting is deactivated.
Te mp orary setting: Driving and parking
141

#
Toactivate: pullsteering wheel paddle
shif ter1 or2.
Manual gearshifting is activated for a short
time. The cur rent gear is displa yed in the
multifunction displa y.
% How long the manual gearshifting stay s acti‐
va ted is dependent on the driving style. #
Toshift up: pullsteering wheel paddle
shif ter2. #
Toshift down: pullsteering wheel paddle
shif ter1. #
Todeactivate: pullsteering wheel paddle
shif ter2 and hold it in place.
The transmission position 005Bappears in the
multifunction displa y.
Pe rm anent setting: #
Change todrive prog ram =(→ page138). #
Select drive program Manual(→page 139).
Mercedes-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognize dangers. Gearshi
ftrecommendation Mercedes
-AMG vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognize dangers.
The gearshift recommendation assists you in
adopting an economical driving style. #
Ifge arshift recommendation message 1is
shown on the multifunction displa y,shift to
th ere commended gear. Using kickd
own Mercedes-AMG
vehicles: observeth e no tes in
th e Supplement. Otherwise, you may failto rec‐
ognize dangers. #
Maximum acceleration: depress the accel‐
erator pedal be yond the pressure point.
The automatic transmission shifts up tothe next
ge ar when the maximum engine speed is
re ached toprotect the engine from overrev ving. Glide mode function
Wi
th an anticipatory driving style, glide mode
helps youto reduce fuel consum ption.
Glide mode is characterized bythefo llowing:
R The combustion engine is disconnected from
th e driv etra in and theve hicle continues to
ro ll in neut ral.
R The transmission position 005Bis displa yed in
green in the multifunction displa y.14 2
Driving and pa rking