R
interference by other radar sources
R the possibility of strong radar reflections,
for example in multi-storey car parks
PRE-SAFE ®
Brak edoes not react to persons,
animals ,oncoming vehicles, crossing traffic
or whe ncornering.
PRE-SAFE ®
Brak emay not detect narrow
vehicles such as motorcycles and vehicles
drivin gona different line. G
Ri
sk of accident
Dependin gonthe cur rent speed, PRE-SAFE ®
Brak edecelerat es your ve hicle by up to
4m /s2
befo reperformin gpossible emer-
genc ybraking .This is equivalen ttoapprox-
imately 40 %ofthe maximum brakin gpower
of the vehicle. You must additionally apply the
brakes yourself in order to prevent acollision
or minimise an impact. Automatic emergency
brakin gisnot performed until immediately
prior to an accident in the even tthat you are
unable to avoid one by, for instance, taking
evasive action.
In order to maintain the appropriate distance
to the vehicle in front and thus prevent acol-
lision, you must apply the brakes yourself.
At speeds up to approximately 70 km /h,
PRE- SAFE ®
Br ake can also detect stationary
obstacles ,for example stopped or parked
vehicles. G
Risk of accident
If ,inac ritical driving situation, yo udonot
receive avisual and acoustic warning:
R PRE-SAFE ®
Brak edid not detect the risk of
ac ollision
R PRE- SAFE ®
Br ake is switched off
R PRE-SAFE ®
Brake has failed
You must then brake to avoid acollision.
X To activate: activate PRE-SAFE®
Br ake in
the on-board computer (Y page 203).
The Ä symbol appears in the lower mul-
tifunction display ,aslong as the HOLD
func tion is not activated (Y page 172).On vehicles with parkin
gguidance, the P
gear must be engage dfor the icon to be
displayed.
The radar sensor system is switched off auto-
matically in the vicinit yofradio telescope
facilities (Y page 324).
For PRE-SAFE ®
Brake to assis tyou when driv-
ing, the radar sensor system must be
switched on and operational.
PRE- SAFE ®
Br ake does not always detect
complex traffic situations properly. You can
terminate the braking action of PRE-SAFE ®
Brake in anon-critical drivin gsituation at any
time if:
R an acoustic and visual warnin goccurs
R the vehicle brakes
To end this, you can either depress the accel-
erato rpedal further, activate kickdown or
release the brak epedal.
The braking action of PRE- SAFE®
Br ake is
ended automatically if:
R you manoeuvre to avoid the obstacle
R you drive slowe rthan approximately
15 km /h
R there is no longe ranobstacle detected in
front of your vehicle
R there is no longer any danger of acollision
Following acollision or collision-related dam-
age to the front end of the vehicle, have the
con figuration and operation of the radar sen-
sors chec ked. Choose aqualified specialist
worksho pfor this which has the necessary
specialist knowledge and tools for the work
required .Mercedes-Benz recommends that
you use aMercedes-Benz Servic eCentr efor
this purpose. Anti-theft systems
Immobiliser
The immobiliser prevent syour vehicle from
being star tedw ithout the correc tkey. 60
Anti-thef
tsystemsSafety
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N
To lock
X Insert the hex-socket wrench int othe roof
lock.
X Tur nthe hex- socket wrench anti-clockwi se
N as fa rasp ossible.
X Hav ethe soft -top mechanism repaired
immediately at aqualified specialist work-
shop, e.g. aMercedes-Benz Service
Centre.
i Press the soft-top compartmen tcover
again if the boot lid can notb eo pened.
! Do not under any circumstances open the
boot lid with the emergenc ykey. You could
otherwise damage the boot lid and the soft-
top compartmen tcover. Re-locking th
esoft top
The soft top is not locked if:
R the Topino peration message appears
in th emultifunction display.
R you hear awarning ton efor up to ten sec-
onds when pullin gaway or while driving.
You can lock the soft top again if it is not
locked fully.
X Stop the vehicle immediately, paying atten-
tion to road and traf ficc onditions.
X Tur nthe key to position 2in the ignition
lock.
X Press the soft -top switch. Boot sepa
rator
General notes The boot separator can be used to cover lug-
gage and loads in the boot.
The soft top can only be opened when the
boot separator is closed.
!
To avoid damaging the soft top or load
when folding back the soft top, observe the
following:
R when the boot separator is open, do not
place any object sinorbehind the net on
the side that are so long they could
obstruct the boot separator or damage
the opened soft top.
R mak esure that the load does not push
the boot separator upwards.
Openin gand closing X
To close: pull boot separator :by the
handle in the direction of the arrow until it
rest sont he sides of the boot.
The boot separator finishes closing auto-
matically.
X To open: push boot separator :against
the direction of the arrow by the handle.
The boot separator finishes opening auto-
matically. Brackets fo
rthe draught stop
Th ed raught stop protects against wind when
driving with th esoft top open. It is secured Soft top (Cabriolet)
83Opening and closing
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Vehicl
eequipment
i Thismanua ldesc ribe sallthe standard
and optional equipment of your vehicle
which wa savailable at th etime of pur-
chase. Countr y-specif ic differences are
possible. Bear in mind tha tyour vehicle
ma ynot featur eall function sdescribed
here. Exterio
rlighting Important safet
ynotes
For reasons of safety, Mercedes-Ben zrecom-
mends that you driv ewith the lights switched
on even during the daytime. In some coun-
tries, operation of the headlamps varies due
to legal requirement sand self-imposed obli-
gations. In these countries, the daytime driv-
ing lights are automatically switche donwhen
the engin eisstarted. Notes on driving abroad
Converting to symmetrical dipped beam
when drivin gabroad: switch the headlamps
to symmetrical dipped beam in countries in
which traffic drives on the opposite side of the
road to the countr ywhere the vehicle is reg-
istered. This prevents oncomi ngtraffic from
being dazzled .Symmetrical lights do not illu-
minate as large an area of the edg eofthe
carriageway.
Convert the headlamps as close to the border
as possible before drivin ginthese countries
(Y page 206).
Converting to asymmetrica ldipped beam
after retu rning: conver tthe headlamps back
to asymmetrical dipped beam as soon as pos-
sible after crossing the border when returning
(Y page 206).
Vehicle swith Intelligent Light System: if
the headlamps are converted to symmetrical
dipped beam, not all light functions are avail- able. "Motorway mode" and the "extended
range foglamps" are deactivated. Light switch
Opera tion 1W
Left-hand parking lamps
2X Right-hand parking lamps
3T Side lamps, licence plate and instru-
ment lighting
4c Automatic headlamp mode/daytime
driving lights
5L Dipped-beam/main-beam head-
lamps
BR Rear foglamps
CN Front foglamps
The turn signals ,main-beam headlamps and
the headlamp flasher are operated using the
combination switch (Y page 108).
! Switch off the side lamps and parking
lamp when you leave the vehicle. This pre-
vent sthe battery from discharging.
The exterior lighting (except the side lamps/
parkin glamps) switches off automatically if
you:
R remove the key from the ignition lock
R open the driver' sdoor with the key in posi-
tion 0
If you hear awarning tone when you leave the
vehicle, the lights may still be switched on.
X Turn the light switch to c.106
Exterior lightingLights and windscree
nwipers
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indicator lamp in the instrumen
tcluster
stays on.
X To deactivate: movethe combina tion
switc hback to its normal posi tion.
The _ indicator lam pinthe instrument
cluster goes out.
Headlam pflasher X
To switch on: turnthe key in the igni tion
lock to position 1or 2or star tthe engine.
X Pull the combina tion switc hbrieflyint he
direction of arrow =.Ha
zard warning lamps The hazar
dwarnin glamps automatically
switc hon:
R if an airbag is deployed
R if the vehicle decelerates rapidl yfrom a
speed of more than 70 km/h and comes to
as tandstill
X To switch on the hazar dwarning lamps:
press button :.
All turn signals flash. If you now switch on
at urn signal using the combination switch,
only the turn signal lamp on the corre-
sponding side of the vehicle will flash.
X To switch off the haza rdwarning
lamps: press button :.
The hazard warning lamp switche soff auto-
matically if th evehicle reaches aspeed of
over 10 km/ hagain after full brake applica-
tion. i
The hazard warnin glamps still operate if
the ignition is switched off. Adjusting the headlamp range (halo-
gen headlamps)
The headlamp range control allow syou to
adjust the con eoflight from the headlamps
to suit the vehicle load. g
Driver' sseat and front-passenger seat
occupied
1 Driver's seat, front-passenger seat and
rear seats occupied
2 Driver's seat, front-passenger seat and
rear seats occupied, boot laden
3 Driver's and front-passenger seats occu-
pied and maximu mpermissible rear axle
load utilised, e.g. when towing atrailer
X Start th eengine.
X Turn headlamp range control to the posi-
tion which corresponds to the load in your
vehicle. Headlamp clean
ings ystem
Th eh eadlamps are cleaned automatically if
the "Wipe with washer fluid" function is oper-
ated ten times while the lights are on and the
engine is running (Y page 116). When you
switc hoff th eignition, the automatic head-
lam pcleaning system is reset and countin gis
resume dfrom 0. 110
Exterior lightingLi
gh ts and windscreen wipers
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Active:
if you are driving at speeds below
70 km/h and you switc honthe rear foglamp.
No tactive: if you are driving at speeds above
10 0k m/h or yo uswitch off the rear foglamp
following activat ion. Interior lighting
Overv
iewofi nterio rlighting Overhead control panel (example: Coupé)
:
u To switc hthe rea rinterior lighting
on/off (Coupé only)
; | To switc hthe automa tici nterior
lighting control on/off
= p To switc hthe right-han dreading
lam pon/off
? c To switch the fron tinterior lighting
on/off
A p To switch the left-hand reading lamp
on/off Automatic interior lighting control
X To switch on/off: pressthe | button.
When the automatic interior lighting con-
trol is activa ted, the button is flush with the
overhead control panel.
The interior lighting automatically switches
on if you:
R unloc kthe vehicle
R open adoor
R remove the key from the ignition lock The interior lightin
gdelayed switch-off must
be activated (Y page 207)
The interior lightin gswitches off after adelay.
You can set the delayed switch-off using the
on-board computer.
i The interior lighting switches off automat-
icall yafter five minutes in certain condi-
tions. This is th ecase when adoor stays
open and the key in the ignition lock is in
position 0or is removed. Manua
linterior lighting control
! If the interior lightin ghas been switched
on manually, it will not be switched off
automatically.
This can cause the batter ytodischarge.
Make sure that the interior lighting does
not remain switched on too long after the
engine has been switched off.
X To switch the front interior lighting on/
off: press the cbutton.
X To switch the rear interior lighting on/
off: press the ubutton.
X To switch the reading lamp son/off:
press the pbutton. Crash-responsive emergency lighting
If the interior lightin gisset to automatic ,the
interior lighting is activated automatically if
the vehicle is involved in an accident.
X To switch of fthe crash-responsive
emergenc ylighting: press the hazard
warning lamp button.
or
X Lock and then unlock the vehicle using the
key. 112
Interior lightingLights and windscreen wipers
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Problems wit
hthe engine Problem Possible causes/consequences and
M Solutions
Th
ee ngine doe snot
start. The HOL
Dfunction or DISTRONIC PLUS is activated.
X Deactivat ethe HOL Dfunction (Y page 172)orDISTRONIC
PLUS (Y page 160).
X Try to start th eengine again. The engine doe
snot
start. The starter motor
can be heard. R
There is amalfunction in the engine electronics.
R There is amalfunction in the fuel supply.
R The on-board voltage is too low because the starter battery is
too weak or discharged.
X Before attempting to start the engine again, turn the key in the
ignition back to position 0or press the Start/Stop button
repeatedly until all indicator lamps in the instrumen tcluster go
out.
X Try to star tthe engin eagain (Y page 136). Avoid excessively
long and frequen tattempt stostart the engine as thes ewill drain
the battery.
If the engine does not start after several attempts:
X Consult aqualified specialist workshop. The engine does not
start
.The starter motor
can be heard. The
reserve fuel warning
lam pisl it and the fuel
gauge displa yshows 0. The fuel tan
kise mpty.
X Refue lthe vehicle. The engin
edoes not
start. You cannot hear
the starter motor. The on-boar
dvoltage is too low because the starter battery is too
weak or discharged.
X Jump-start the vehicle (Y page 289).
If the engin edoes not star tdespite attempt stojump-start it:
X Consult aqualified specialist workshop. The starter motor was exposed to
athermal load that was too high.
X Allo wthe starter motor to cool down for approximatel ytwo
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult aqualified specialist workshop. 140
DrivingDrivin
gand pa rking
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Problem Possible causes/consequences and
M Solutions
Vehicles with
apetrol
engine:
The engine is not run-
ning smoothly and is
misfiring. There is
amalfunction in the engine electronics or amechanical
componen tofthe engin emanagement system.
X Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at aqualified specialist
workshop.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it. The coolant tempera-
ture display is showing
more than 120 †. The
coolant warning lamp
may also be lit and a
warning tone may
sound. (Y
page 192). The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X
Stop as soo naspossible and allow the engin eand the coolant
to cool down.
X Check the coolant level (Y page261). Observe the warning
notes as you do so and top up the coolan tifnecessary. If the coolan
tlevel is correc t,the radiator fan may be faulty. The
coolant is too hot and the engine is no longe rbeing cooled suffi-
cien tly.
X If the coolant temperature is less than 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop/start driving. Manual transmission
Gear lever
Gear lever
!
Whe nshifting between 5thand 6thgear,
you should always push the gear lever all
the way to the right. Otherwise, you could
shift uninte ntionally into 3rdor4th gear
and damage the transmission. Do not exceed the maximum speed for the
individual gears.
Shiftin
gdown at too high aspeed (trans-
mission braking) can cause the engine to
overrev ,leading to engine damage.
! On long and steep downhill gradients,
especiall yifthe vehicle is laden or towing
at railer, yo umust shift into gear 1, 2or3
in good time. This uses the engine's braking
effect .This relieves the load on the brake
system and prevents the brakes from over-
heating and wearing too quickly. Neutral
Nwhen the ECO start/stop
functio nisactive
In neutral N,the engin eisswitched off when
the vehicle speed is below acertain threshold
and the clut chpedal is not depressed. Manual transmission
141Driving and parking
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If ice ha
sformed on the road surface (e.g.
from fog), athin fil mofw ater rapidly forms on
the ice when you brake, considerably reduc-
ing tyre grip. Drive with particular care in such
weather conditions. Drivin
gonw etroads
Aquapla ning If water has accumulated to
acertain depth
on th eroad surface, there is adanger of aqua-
planing occurring, even if:
R you driv eatlow speeds
R thet yres have adequat etread depth
For this reason ,donot drive in tyre ruts ,and
brak ecarefully.
Driving on flooded roads If you have to driv
eonstretches of roadon
whic hwater has collected, please bear in
min dthat:
R the maximu mpermitted dept hins till water
is 25 cm
R you should driv enofaster than at walking
pace.
! Bear in min dthat vehicles travelling in
front or in th eopposite directio ncreate
waves. This ma ycause the maximum per-
missible water depth to be exceeded.
Failure to observe these notes may result
in damage to the engine, electrical systems
and transmission. Winter driving
Important safety notes Have your vehicle winterproofed at
aqualified
specialist workshop, e.g. at aMercedes-Benz
Servic eCentre, at the onset of winter.
Observ ethe notes in the "Changin gawheel"
section (Y page 302). Winter ty
res Us
ew inter tyres at temperatures below
+7 †a nd on sno worice-covered roads .Only
winter tyre sbeari ng the isnowflake sym-
bo lnext to the M+S marking provid ethe best-
possible grip in wintry road conditio ns.O nly
thes etyres will allow the ABS and ESP ®
driv-
ing systems to function optimally in winter, as
thes etyres have been designed specifically
for driving on snow.
Use winter tyres of the same make and tread
on all wheels to maintain safe handling char-
acteristics. G
Risk of accident
Winter tyres with atrea ddepth of less than
4mmm ust be replace dimmediately. They are
no longe rsuitable for winter use and can no
longer provid esufficient grip. This could
cause you to lose control of you rvehicle and
cause an accident.
Alway sobserv ethe maximum permissible
speed specifie dfor the winter tyres you have
fit ted. If you fit winter tyres which have a
lower maximum permissible speed than that
of the vehicle, affix an appropriate warning
sign in the driver' sfield of vision. This can be
obtained at aqualified specialist workshop,
e.g. from aMercedes-Benz Ser vice Centre.
Under these circumstances, you shoul dalso
restrict the maximum speed of the vehicle
using permanen tSPEED-
TRONIC 29
(Y page 17 1)so that it does not
exceed the maximum permissible speed for
the winter tyres.
Onc eyou have fit tedt he winter tyres:
X Chec kthe tyr epressures (Y page 299).
X Restart th etyre pressure los swarning sys-
tem (Y page 301). G
Risk of accident
If you fit the spare wheel when driving with
winter tyres, bear in mind that driving stability
will be impaired due to unstable cornering
29 Only available for certain countries. 156
Driving tipsDriving and parking
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