engine MERCEDES-BENZ C-CLASS CABRIOLET 2018 User Guide

Note
s onthe cor rect driver's seat position 000A
WARNING Risk of inju rythro ugh adjust‐
ing vehicle settings while theve hicle is in
motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r while theve hicle is in motion
R ifyo ufast enyour seat belt while theve hi‐
cle is in motion 0007
Before starting the engine: adjust the
driver's seat, the head restra ints, the
st eering wheel or the mir ror and fasten
yo ur seat belt. Ensure
thefo llowing when adjusting thesteering
wheel 1, seat belt 2and driver's seat 3:
R you are as faraw ay from the driver's airbag
as possible
R you are sitting in an upright position
R your thighs are slight lysuppor tedby the seat
cushion R
your legs are not fully extended and you can
depress the pedals properly
R the back of your head is suppo rted at eye
le ve lby the cent reofthe head restra int
R you can hold thesteering wheel with your
arms slightly bent
R you can mo veyour legs freely
R you can see all the displa yson the instru‐
ment clus ter clea rly
R you ha vea good overview of the traf fic con‐
ditions
R your seat belt is pulled snug lyagainst your
body and is routed across the cent reofyour
shoulder and across your hips in the pelvic
area 100
Seats and stowing

Seats
Ad
justing the front seat mechanically and
electrically (without Seat Comfort Package) 000A
WARNING Risk of becoming trapped if
th e seats are adjus tedby children
Children could become trapped if they adjust
th e seats, particularly when unattended. 0007
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle.
This also applies tothe digital vehicle
ke y if the "Digital Vehicle Key" function
is activated via Mercedes me connect. 0007
Never lea vechildren unat tended in the
ve hicle. The seats can be adjus
ted when the ignition is
switched off. 000A
WARNING Risk of becoming trapped
when adjusting the seats
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. 0007
When adjusting a seat, make sure that
no one has any body parts in the sweep
of the seat. Obser
vethe saf ety no tes on "Airbags" and "Chil‐
dren in theve hicle". 000A
WARNING Risk of accident due tothe
driver's seat not being engaged
If th e driver's seat is not engaged, it could
mo veunexpectedly while theve hicle is in
motion.
This could cause youto lose control of the
ve hicle. 0007
Alw ays make sure that the driver's seat
is engaged before starting theve hicle. 000A
WARNING Risk of inju rythro ugh adjust‐
ing vehicle settings while theve hicle is in
motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r while theve hicle is in motion
R ifyo ufast enyour seat belt while theve hi‐
cle is in motion 0007
Before starting the engine: adjust the
driver's seat, the head restra ints, the
st eering wheel or the mir ror and fasten
yo ur seat belt. 000A
WARNING Risk of becoming trapped if
th e seat height is adjus ted carelessly
If yo u adjust the seat height carelessly, you
or other vehicle occupants could be trapped
and thereby injured. Seats and
stowing 101

Ad
justing the front seat electrically 1
Head restra int height
2 Seat backrest inclination
3 Seat height
4 Seat cushion length
5 Seat cushion inclination
6 Seat fore -and-aft position 0007
Save the settings with the memory function
(0013 page113). Ad
justing the 4-w aylumbar support 1
Raise
2 Soften
3 Lower
4 Harden 0007
Using buttons 1to4 , adjust the conto ur
of the backrest individually tosuit your bac k. Head
restra ints Ad
justing the front seat head restra ints
mechanically 000A
WARNING Risk of inju rythro ugh adjust‐
ing vehicle settings while theve hicle is in
motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r while theve hicle is in motion
R ifyo ufast enyour seat belt while theve hi‐
cle is in motion 0007
Before starting the engine: adjust the
driver's seat, the head restra ints, the
st eering wheel or the mir ror and fasten
yo ur seat belt. 104
Seats and stowing

0007
Maintain a suitable dis tance from the
outlet opening. Re
quirements:
R the po wer supp lyis switched on AIRSCARF
warmsth e head and neck area of
ve hicle occupants with warm air. The warm air
fl ow s out of theve nts in the head restra ints. 0007
Toswitch on: press button 1.
All indicator lamps are on.
0009 During the switch-on process, the blo wer
st arts up on lyafte r a preheating phase last‐
ing se ven seconds. 0007
Toreduce the le vel:press button 1
re peatedly until the desired heating le vel is
set.
Depending on the heating le vel, up tothree
indicator lamps light up. 0007
Toswitch off: press button 1repeatedly
until all the indicator lamps go out.
0009 After switching off, the blo werru ns on for a
fe w seconds tocool down the heating ele‐
ments.
0009 Ifth eve hicle battery voltage is too lo w,AIR‐
SCARF may switch off. 0007
Adjusting the AIRSCARF vent
(0013 page 146).
Make sure that there are no objects co vering the
air intake on the back of the head restra int. Make sure
that objects do not enter theve nts in
th e head restra ints. St
eering wheel Ad
justing the steering wheel manually 000A
WARNING Risk of inju rythro ugh adjust‐
ing vehicle settings while theve hicle is in
motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra ints, thesteering wheel or the mir‐
ro r while theve hicle is in motion
R ifyo ufast enyour seat belt while theve hi‐
cle is in motion 0007
Before starting the engine: adjust the
driver's seat, the head restra ints, the
st eering wheel or the mir ror and fasten
yo ur seat belt. 11 0
Seats and stowing

0007
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle.
This also applies tothe digital vehicle
ke y if the "Digital Vehicle Key" function
is activated via Mercedes me connect. The memory function can be used when
the igni‐
tion is switched off.
St oring
Seat adjustments for up tothre e people can be
st ored and called up using the memory function.
The following sy stems can be selected:
R Seat, backrest and head restra int
R Steering wheel
R Outside mir rors
R Head-up display 0007
Set the seat, thesteering wheel, the head-up
display and the outside mir rors to the
desired position. 0007
Press memory button M and then press pre‐
set position button 1,2 or 3 within thre e sec‐
onds.
An acoustic signal sounds. The settings are
st ored. 0007
Tocall up: press and hold there leva nt pre‐
set position button 1,2 or 3 until the front
seat, thesteering wheel, head-up display and
outside mir ror are in thestored position.
0009 When youre lease the preset position button,
st eering wheel, the seat and mir ror setting
functions stop immediatel y.The head-up dis‐
play continues tobe adjus ted. St
ow age areas Note
s on loading theve hicle 000A
DANG ER Risk of exhaust gas poisoning
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Exhaust
ga ses can enter theve hicle interior if the
boot lid is open when the engine is running,
especially if theve hicle is in motion. 0007
Alw ays switch off the engine before
opening the boot lid. 0007
Never drive with the boot lid open. 11 4
Seats and stowing

004B
0058 Low beam/high beam
6 005E Switches there ar fog lights on or off
When low beam is activated, the indicator lamp
fo rth est anding lights 0060is deactivated and
re placed bythe low beam indicator lamp 0058.0007
Alw ays park your vehicle safely and in a well-
lit area, in accordance with there leva nt le gal
st ipulations.
000E NO
TEBattery discharging byoperating
th est anding lights Operating
thest anding lights over a period of
hours puts a stra in on the batter y. 0007
Where possible, switch on the
ri ght 0064 or left 0063parking light. In
the case of se vere battery discharging, the
st anding lights or parking lights are automati‐
cally swit ched off tofacilitate the next engine
st art.
The exterior lighting (e xcept standing and park‐
ing lights) swit ches off automatically when the
driver's door is opened. R
Obser vethe no tes on sur round lighting
(0013 page135).
Au tomatic driving lights function
The standing lights, low beam and daytime run‐
ning lights are switched on au tomatical ly
depending on the ignition status and the light
conditions. 000A
WARNING Risk of accident when the
dipped beam is switched off in poor visi‐
bility
When the light switch is set to0058 ,the
dipped beam may not be switched on auto‐
matically if there is fog, snow or other causes
of poor visibility such as spr ay. 0007
In such cases, turn the light switch to
0058 . The automatic driving lights are only an aid.
Yo u
are responsible forve hicle lighting. Switching
there ar fog lights on or off
Re quirements:
R The light switch is in the0058 or0058 posi‐
tion. 0007
Press the 005E button.
Please obser vethe count ry-specific la wsonthe
use of rear fog lamps. 12 8
Light and sight

0007
Before starting the engine: adjust the
driver's seat, the head restra ints, the
st eering wheel or the mir ror and fasten
yo ur seat belt. 000A
WARNING Risk of accident due tomis‐
judgement of dis tances when using the
outside mir ror
The outside mir rors reflect objects on a
smaller scale. The objects in view are in fact
closer than they appear.
As a result, you may misjud gethe dis tance
between you and thero ad user driving
behind you, e.g. when changing lanes. 0007
Therefore, alw ays look over your shoul‐
der in order toensure that you are
aw are of the actual dis tance between
yo u and thero ad users driving behind
yo u. Fo
lding the outside mir rors in/out 0007
Brief lypress switch 1.
Re setting the outside mir rors
0009 Ifth e battery has been disconnected or com‐
ple tely discharged, the outside mir rors must
be reset. Only then will the automatic mir ror
fo lding function workproperly. 0007
Brief lypress switch 1. Ad
justing the outside mir rors 0007
Press button 3or4 toselect the outside
mir rorto be adjus ted. 0007
Press button 2toadjust the position of the
mir rorgl ass.
Engaging the outside mir rors 0007
Vehicles without electrical lyfolding out‐
side mir rors:manually mo vethe outside
mir ror into the cor rect position. 0007
Vehicles with electrical lyfolding outside
mir rors: press and hold button 1.
Yo u will hear a click and the mir ror will audi‐
bly engage in position. The outside mir ror is
set tothe cor rect position. Au
tomatic anti-dazzle mir rors function 000A
WARNING Risk of bu rns and poisoning
due tothe anti-dazzle mir ror electrolyte
Electrolyte may escape if theglass in an
automatic anti-dazzle mir ror breaks. Light and sight
13 9

The electrolyte is harmful and causes ir
rita‐
tion. It mu stnot come into contact wi thyour
skin, eyes,respiratory organs or clo thing or
be swallo wed. 0007
Ifyo u come into contact with electro‐
ly te , obser vethefo llowing:
R Rinse the electrolyte from your skin
and seek medical attention immedi‐
atel y.
R If electrolyte comes into contact
with your eyes, rinse them thor‐
oughly with clean water and seek
medical attention immediately.
R Ifth e electrolyte is swallo wed,
immediately rinse your mouth out
th oroughly. Do not induce vomiting.
Seek medical attention immediately.
R Immedia tely ch ange out of clo thing
which has come into con tact wi th
electrolyte.
R If an allergic reaction occurs, seek
medical attention immediatel y. The inside
rearview mir ror and the outside mir‐
ro r on the driver's side automatically go into
anti-dazzle mode if light from a headlamp hits
th e sensor on the inside rearview mir ror.
Sy stem limitations
The sy stem does not go into anti-dazzle mode in
th efo llowing situations:
R the engine is switched off
R reve rsege ar is engaged
R the interior lighting is switched on Fu
nction of the front-passenger outside mir‐
ro r parking position The pa
rking position makes parking easier.
The front-passenger outside mir ror tilts down‐
wa rds and sho ws there ar wheel on the front-
passenger side in thefo llowing situations:
R the parking position is stored
(0013 page141)
R the passenger mir ror is selected
R reve rsege ar is engaged The front-passenger outside mir
ror mo ves back
to its original position in thefo llowing situations:
R you shift the transmission toano ther trans‐
mission position
R at speeds greater than 15 km/h
R you press the button forth e outside mir ror
on the driver's side 14 0
Light and sight

Overview of climate control sy
stems Note
s on climate control An interior air
filter must alw ays be used so that
th e air conditioning sy stem, pollution le vel moni‐
to ring and the air filtering function workcor‐
re ctly. Ma kesure that thefilter is ins talled cor‐
re ctly and thefilter housing in the engine com‐
partment is closed cor rectly using the cap and
alw ays tightly sealed when in operation. Use fil‐
te rs recommended and appr ovedby Mercedes-
Benz. Alw ays ha veservice workcar ried out at a
qu alified specialist workshop. THERMATIC control panel
overview The indicator lamps on
the buttons indicate that
th e cor responding function is activated. 1
0082 Setsthe driver's side temp erature
2 008F Setsthe air distribution
3 002D Setsthe air flow or switch off climate
control
4 0058 Sets climate control toautomatic
mode (0013 page144)
5 0064 Defrosts the windscreen
6 008A Calls up the air conditioning menu
7 006C Switches there ar wind owheater
on/off
8 0015 Activates or deacti vates synchronisa‐
tion (0013 page144)
9 0072 Switches ai r-re circulation mode on/
off(0013 page 144) A
005A Switches the A/C function on/
off(0013 page143)
B 0082 Setsthe front passenger side temp era‐
ture Operating
the clima tecont rol sy stem Switching clima
tecont rol on/off 0007
Toswitch on: setthe air flow toleve l 1 or
higher using the002D button. 0007
Toswitch off: setthe air flow toleve l 0 using
th e002D button.
0009 If climate control is switched off, the win‐
do ws may mist up more quickl y.Switch off
climate control only brie fly. Switching
the A/C function on or off via the
cont rol panel The A/C function heats, cools and dehumidifies
th
eve hicle's interior air. 0007
Press button 005A. Climate control
14 3

Driving
Note
s on Mercedes-AMG vehicles Obser
vethe no tes on thefo llowing topics in the
Supplement, as you may otherwise failto recog‐
nise dangers:
R Rear axle locking dif fere ntial
R AMG Performance exhaust sy stem
R AMG ceramic high-per form ance composite
brake sy stem
R RACE START
R AMG RIDE CONTROL Switching
the po wer supp lyor ignition on
without starting the engine 000A
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 005Dor shifting manual trans‐
mission into idle position.
R starting the engine. 0007
Never lea vechildren and animals unat‐
te nded in theve hicle. 0007
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle.
This also applies tothe Digital Vehicle
Ke y if the "Digital Vehicle Key" function
is activated via Mercedes me connect. 0007
Keep theve hicle key out of reach of
ch ildren. This also applies tothe Digital
Ve hicle Key if the "Digital Vehicle Key"
function is activated via Mercedes me
connect. Re
quirements:
R theke y is in theve hicle and is recognised.
R or: a Digi talVe hicle Key is located in the
mar ked space (0013 page149).
R the brake pedal is not depressed. Driving and parking
147