2018 MERCEDES-BENZ C-CLASS CABRIOLET key

0007
Tounlo cktheve hicle: touch the inner sur‐
fa ce of the door handle. 0007
Tolock theve hicle: touch sensor sur face
1 or2. 0007
Convenience closing: touch recessed sen‐
sor su rface 2until the closing procedure is
comple te. 0009
Further information on con venience closing
(0013 page 87).
If yo u open the boot lid from outside it is auto‐
matically unloc ked. Problems with KEYLESS-GO
Problem
Possible causes/consequences and 0050
0050Solutions
Yo u can no lon ger lock or unlock the
ve hicle using KEYLESS-GO. Po
ssible causes:
R The key functions ha vebeen deactivated (0013 page75).
R The key bat tery iswe ak or dischar ged.
R There is inter fere nce from a po werful radio signal source.
R The key is faulty. 0007
Activate theke y functions (0013 page75). 0007
Check the battery using the battery check lamp and replace if necessary (0013 page76). 0007
Use the emer gency keyto unlo ckor lock theve hicle (0013 page76). 0007
Have theve hicle and keych ecked at a qualified specialist workshop. Opening and closing
81

Ac
tivating/deactivating the automatic lo ck‐
ing feature The
vehicle is loc ked automatically when the
ignition is switched on and the wheels are turn‐
ing fast erthan walking pace. 0007
Toactivate: press and hold button 2for
appr oximately five seconds until an acoustic
signal sounds. 0007
Todeactivate: press and hold button 1for
appr oximately five seconds until an acoustic
signal sounds.
In thefo llowing situations, there is a danger of
being loc ked out when the function is activated:
R While theve hicle is being tow star ted/
pushed.
R The vehicle is being tested on the dynamom‐
et er. Locking/unlocking
the driver's door with the
emer gency key 0009
Ifyo u wish tolock theve hicle entirely using
th e emer gency key,firs t press the button for
locking from the inside while the driver's
door is open. Then proceed tolock the driv‐
er's door using the emer gency key. 0007
Insert the emer gency key as far as it will go
into opening 1inthe co ver. 0007
Pull and hold the door handle. 0007
Pull the co ver on the emer gency key as
st ra ight as possible away from theve hicle
until it releases. 0007
Release the door handle. 82
Opening and closing

0007
Tounlo ck:turn the emer gency key anti-
clo ckwise toposition 0047. 0007
Tolock: turnthe emer gency key clo ckwise to
position 0047. 0007
Carefully press the co ver onto the lock cylin‐
der until it engages and is seated firm ly. Boot
Opening the bo
otlid 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. 000E
NO
TEDama getothe boot lid byobs ta‐
cles ab ovetheve hicle The boot lid swings upwards when it is
opened.
0007
Therefore, make sure that there is suf fi‐
cient clearance ab ovethe boot lid. Yo
u ha vethefo llowing options for opening
the bo otlid: 0007
Pull boot lid remo teoperating switch 1. 0007
Press and hold the008B button on thekey. Opening and closing
83

R
afte r six hours
R ifth ere is a malfunction in the po wer supply
The side windo wsare closed as far as theve nti‐
lation position rega rdless of thest atus of the
soft top.
If th e side windo wsare bloc ked during auto‐
matic closing, the side window concerned will
open again slightl y.The automatic function is
th en deactivated. Con
venience opening (ventilating theve hicle
before starting a journey) 000A
WARNING Risk of entrapment when
opening a side window
When opening a side windo w,parts of the
body could be dr awn in or become trapped
between the side window and window frame. 0007
When opening, make sure that nobody
is touching the side windo w. 0007
Release the button immediately if
somebody becomes trapped. 000A
WARNING Risk of becoming trapped
when opening/closing the soft top .
When opening or closing the soft top, there
is a risk that parts of the body could become
trapped bymoving parts such as thero of
mechanism, the boot lid, or the side win‐
do ws. 0007
When opening or closing, make sure
that no body parts are in the vicinity of
moving components. 0007
Release the button if somebody
becomes trapped. 0007
Press and hold the0036 button on thekey.
The following functions are per form ed:
R The vehicle is unloc ked.
R The side windo wsare opened when the
boot separator is open.
R The soft top is opened when the boot
separator is closed.
R The seat ventilation of the driver's seat is
switched on. 0007
Tointer rupt convenience opening: release
th e0036 button. Con
venience closing (closing theve hicle
from outside) 000A
WARNING Risk of entrapment caused by
inadver tent con venience closing
When the con venience closing feature is
operating, parts of the body could become
trapped in the closing area of the side win‐
do ws. 0007
Obser vethe comple teclosing proce‐
du re when using con venience closing. 0007
When closing, ma kesure that no body
parts are in the closing area. 000A
WARNING Risk of becoming trapped
when opening/closing the soft top .
When opening or closing the soft top, there
is a risk that parts of the body could become
trapped bymoving parts such as thero of Opening and closing
87

mechanism,
the boot lid, or the side win‐
do ws. 0007
When opening or closing, make sure
that no body parts are in the vicinity of
moving components. 0007
Release the button if somebody
becomes trapped. 0007
Press and hold the0037 button on thekey.
The following functions are per form ed:
R The vehicle is loc ked.
R The soft top is closed.
The side windo wsare closed when the
soft top is closed. 0007
Tointer rupt convenience closing: release
th e0037 button.
0009 Con venience closing wi thKEYLESS-GO only
closes the side windo ws (0013 page 80). Problems with
the side windo ws Problem
Possible causes/consequences and 0050
0050 Solutions
A side window cann otbe closed and
yo u cannot see the cause. 0007
Check tosee whe ther any objects are in the window guide.
000A WARNING Risk of becoming trapped or fata lly injured if reve rsing pr otection is not activated
If yo u close a side wind owagain immediately af ter it has been bloc ked or reset, the side window closes
with increased or maximum forc e. The reve rsing feature is then not active.
Pa rts of the body could become trapped in the closing area in the process. 0007
Make sure that no parts of the body are in the closing area. 0007
Tostop the closing process, release the button or press the button again toreopen the side win‐
do w. If a side window is obstructed during closing and
reopens again slightly: 88
Opening and closing

Problem
Possible causes/consequences and 0050
0050Solutions 0007
Immediately af terth e window is bloc ked, pull the cor responding switch again until the side window has
closed, and hold the switch for an additional second.
The side window will be closed with increased forc e.
If a side window is obstructed again during closing and reopens again slightly: 0007
Repeat the pr evious step.
The side window is closed without the automatic reve rsing function.
The side windo wscannot be opened or
closed using the con venience opening
fe ature. The
key bat tery iswe ak or dischar ged. 0007
Check the battery using the battery indicator lamp and replace if necessary (0013 page76). Soft
top Opening and closing
the soft top using the
so ft-top switch 000A
WARNING Risk of becoming trapped
due tothe soft top lo wering unexpect‐
ed ly
If yo u do not fully open/close the soft top,
th e soft-to phy draulics depressurise af ter a
short time. This causes
the soft topto lowe r unexpect‐
edly and may cause you or others tobe trap‐
ped. 0007
Alw ays fully open or close the soft top. 000A
WARNING Risk of becoming trapped
when opening/closing the soft top .
When opening or closing the soft top, there
is a risk that parts of the body could become trapped
bymoving parts such as thero of
mechanism, the boot lid, or the side win‐
do ws. 0007
When opening or closing, make sure
that no body parts are in the vicinity of
moving components. 0007
Release the button if somebody
becomes trapped. Opening and closing
89

Problem
Possible causes/consequences and 0050
0050Solutions
The soft top has been opened and closed se veral times in a row. The soft-top drive has been switched off
au tomatical lyand will be available again af ter appro ximately ten minu tes. 0007
Repeat the opening or closing procedure af ter appro ximately ten minu tes.
The boot separator is not closed. 0007
Remo ve ov erhanging luggage and close the boot separator.
The boot lid is open. 0007
Close the boot lid (0013 page84).
The mechanical soft-to p components or control sy stem are defective. 0007
Consult a qualified specialist workshop.
Yo u are driving at a speed greaterth an 60 km/h. 0007
Reduce your speed tobelow 60 km/h. Anti-theft pr
otection Fu
nction of the immobiliser The immobiliser pr
events your vehicle from
being star ted without the cor rect key. The immobiliser is automatically activated when
th e ignition is switched off and deactivated when
th e ignition is switched on. ATA
(Anti-Theft Alarm sy stem) Fu
nction of theATA system
If th eATA system is primed, a visual and audible
alarm is triggered in thefo llowing situations:
R when a door is opened 96
Opening and closing

R
when the boot lid is opened
R when the bonn etis opened
R when interior pr otection is triggered
(0013 page 98)
R when tow- aw ay protection is triggered
(0013 page97)
The ATA sy stem is primed automatically af ter
appr oximately ten seconds in thefo llowing situa‐
tions:
R afte r locking theve hicle with thekey
R afte r locking theve hicle using KEYLESS-GO Indicator lamp
1flashes when theAT A sy stem
is primed.
The ATA sy stem is deactivated automatically in
th efo llowing situations:
R afte r unlocking theve hicle with thekey
R afte r pressing thest art/ stop button with the
ke y in thestow age compartment
(0013 page150) R
afte r unlocking theve hicle using KEYLESS-
GO
0009 When the Mercedes‑Benz emer gency call
sy stem is active and the alarm stay s on for
more than 30 seconds, a message is auto‐
matically sent tothe Cus tomer Assis tance
Centre (0013 page 350).
Deactivating theATA 0007
Press the0036, 0037or008B button on the
key.
or 0007
Press thest art/ stop button with theke y in
th estow age compartment (0013 page150)
Deactivating the ala rmusing KEYLESS-GO: 0007
Grasp the outside door handle with thekey
outside theve hicle. Fu
nction of tow- aw ay protection An audible and visual alarm is triggered if an
alteration
to yourvehicle's angle of inclination is
de tected while tow- aw ay protection is primed. Opening and closing
97