
Radio
Selecting astation ......................... 154
see separate operating instructions
Radio-wav ereception/transmis-
sion in the vehicle Declaration of conformity ................ 22
Reading lamp ....................................... 99
Rear spoiler Displa ymessag e............................ 189
Extending/retracting ..................... 210
Problem ......................................... 211
Rear vie wcamera
Cleaning instructions ..................... 228
Function/note s............................. 144
Rear-vie wmirror
Anti-glare (manual) .......................... 90
Dipping (automatic) ......................... 91
Rear windo wdefroster
Problem (malfunction) ................... 113
Switching on/of f........................... 112
Refrigerant (air-conditioning sys-
tem) Important safety notes .................. 284
Refueling
Fuelgauge ....................................... 27
Important safety notes .................. 128
Refueling process .......................... 129
see Fuel
Remote control
Garag edooro pener ....................... 211
Programming (garage door
opener) .......................................... 212
Replacing bulbs
Important safety notes .................. 100
Reporting safety defects .................... 23
Reserve (fuel tank) see Fuel
Reserve fuel
Displa ymessage ............................ 179
Warning lamp ................................. 196
see Fuel
Reversin glamps (display message) .. 175
Roadside Assistance (breakdown) .... 20
Roof see Soft top
Route
see Route guidance (navigation) Route guidanc
e(navigation) ............ 153 S
Safety Childre ninthe vehicl e..................... 51
Chil drestraint systems .................... 51
Occupant Classification System
(OCS) ............................................... 42
Safety system
see Driving safety systems
Seat belts
Beltforce limiters ............................ 50
Cleaning ......................................... 230
Correct usag e.................................. 48
Emergency Tensioning Devices ........ 50
Fastening ......................................... 49
Important safety guideline s............. 47
Releasing ......................................... 49
Safety guideline s............................. 37
Specia lsea tb eltr etractor ............... 53
Warning lamp ................................. 191
Warning lamp (function) ................... 49
Seats
Adjusting (electrically) ..................... 86
Adjusting (manually) ........................ 86
Adjusting lumba rsuppo rt ................ 86
Cleaning the cove r......................... 230
Correct driver' sseatp osition ........... 84
Important safety notes .................... 85
Sea theating problem ...................... 87
Storing settings (memory function) .. 92 Switching AIRSCAR Fon/of f............ 88
Switching sea theating on/of f......... 87
Selecto rlever
Positions ........................................ 121
Sensors (cleaning instructions) ....... 228
Servic einterva ldisplay
Displaying service messages ......... 222
Hiding service messages ............... 222
Note s............................................. 222
Service messages .......................... 222
Servic emenu(on -board computer) .. 157
Servic eproducts
Brake fluid ..................................... 285
Coolant (engine) ............................ 285
Engine oi l....................................... 283
Fue l................................................ 282 12
Index

Protection of the environment
General notes
H
Environmental note
Daimler's declared policy is one of compre-
hensive environmental protection.
The objectives are for the natural resources
that form the basis of our existence on this
planet to be used sparingly and in amanner
that takes the requirements of both nature
and humanity into account.
You too can help to protect the environment
by operating your vehicle in an environmen-
tally responsible manner.
Fuel consumption and the rate of engine,
transmission, brake and tire wear are affected by these factors:
R operating condition sofyour vehicle
R your personal driving style
You can influence both factors. You should
bear the following in mind:
Operating conditions:
R avoid short trips as these increase fuel con-
sumption.
R always make sure that the tire pressures
are correct.
R do not carry any unnecessary weight.
R remove roof racks once you no longer need
them.
R ar egularly serviced vehicle will contribute
to environmental protection. You should
therefore adhere to the service intervals.
R always have service work carried out at a
qualified specialist workshop.
Personal driving style:
R do not depress the accelerator pedal when
startingt he engine.
R do not warm up the engine when the vehicle
is stationary.
R drive carefully and maintain asafe distance
from the vehicle in front.
R avoid frequent, sudden acceleration and
braking. R
change gear in good time and use each gear
only up to 00C3of its maximum engine speed.
R switch off the engine in stationary traffic.
R keep an eye on the vehicle's fuel consump-
tion. Environmental concerns and recom-
mendations
Wherever the operating instructions require
you to dispose of materials, first try to regen-
erate or re-use them. Observe the relevant
environmental rules and regulations when
disposing of materials. In this way you will
help to protect the environment. Genuine Mercedes-Benz parts
H
Environmental note
Daimler AG also suppliesr econditioned major
assemblies and parts which are of the same
quality as new parts. They are covered by the same Limited Warranty entitlements as new
parts.
! Air bags and Emergency Tensioning Devi-
ces, as well as control units and sensors for these restraint systems, may be installed inthe following areas of your vehicle:
R doors
R door pillars
R door sills
R seats
R cockpit
R instrumen tcluster
R center console
Do not install accessories such as audio
systems in these areas. Do not carry out
repairs or welding. You could impair the
operating efficienc yofthe restraint sys-
tems.
Have aftermarket accessories installed at a qualified specialist workshop. 18
Introduction

Exiting in an emergency (Coup
eonly)
If th evehicle is lying on its roo fafter an acci-
dent, th ehinge fasteners of th egullwing
door sare released pyrotechnically. You will
hear abang if this is th ecase. Afte rthe fas-
teners have been released, th edoor sare
forced outwards .Simultaneously, th edoor
locks are unlocked. The 0075SRS warning
lamp light sup.
i The hinge fasteners are only released
when th econtrol unit recognize sthatc er-
tain condition shave been fulfilled, e.g.
when th evehicle is in astabilized position
on its roof.
The door scan then be moved from the
inside/outside by pullin gthe door handle. Seat belts
Important safety notes The use of infant or child restraint
sisrequired
by law in all 50 states, th eDistrict of Colum-
bia, th eU.S.terri tories and all Canadian prov-
inces.
Even wher ethisisn otthec ase, all vehicle
occupant sshoul dhave their seat belt sfas-
tene dwhen th evehicle is in motion.
i See "Children in th
evehicle"
(Y page 51) for further informatio non
infant sand childre ntravelin gint hevehicle
as well as on child restraint systems. G
WARNING
Always fasten your seat belt before driving off. Always mak esure your passenger is properly
restrained. You and your passenger should
always wear seat belts.
Failur etow ear and properl yfasten and posi-
tio ny our seat belt considerably increases
your risk of injuries and their likely severit yin
an accident.
If you are ever in an accident, your injuries
coul dbec onsiderably mor esevere if you have
no tfastene dyour seat belt correctly. If you do no
tfasten your seat belt ,you are muc hmore
likely to collide with part softhevehicle inter-
ior or be ejected from it. This may result in
serious or fatal injury.
In th esame crash, th epossibilit yofserious or
fatal injury is considerably reduced if you wear
your seat belt properly. The air bags can only offer th eintended protection if th eoccupants
are wearin gtheir seat belt sproperly. G
WARNING
Never ride in amoving vehicle with th eseat
backres tinanexcessively recline dposition as
this can be dangerous. You coul dslide under
th es eat belt in acollision .Ifyou slide unde rit,
th es eat belt would apply force at th eabdo-
men or neck. That coul dcaus eserious or even
fatal injuries .The seat backres tand seat belt
provide th ebest restraint when th eweare ris
in ap osition that is as upright as possible and
th es eat belt is properl ypositioned on the
body. G
WARNING
Never let mor epeopl eride in th evehicle than
there are seat belt savailable. Mak esure
everyone ridin ginthevehicle is correctly
restraine dwithaseparate seat belt .Never
use aseat belt for mor ethano neperson at a
time. G
WARNING
Damaged seat belt sorseat belt sthath ave
been subjected to stres sinanaccidentmust
be replaced and their anchoring points must
also be checked.
Only use seat belt swhichhave been approved
by Mercedes-Benz.
Do no tmakea ny modifications to th eseat
belts. This can lead to unintende dactivation
of th eETDsortot heir failur etoactivat ewhen
necessary.
Do no tbleac hord ye seat belt sasthism ay
severel yweaken them. In acrash they may
no tbea ble to provide adequat eprotection. Occupant safety
47Safety
Z

!
Never sit on the soft top when it is closed
or store heavy objects on it. You will other- wise damage the soft top of the vehicle.
! When opening and closing the soft top,
make sure that:
R there is sufficient clearance above it, as
the soft top swings upwards.
R there are no objects on the soft top or the
soft-top covers to the side.
R the fabric is not dirty, wet or frozen
R the outside temperature is above -10 †.
You could otherwise damage the soft top as
well as other parts of the vehicle.
i Make sure that the soft top is dry and
clean before closing it. Otherwise, water or
dirt could enter the vehicle interior or trunk. Opening and closing with the soft top
switch
Important safety notes G
WARNING
When opening or closing the soft top, there is ar isk that parts of the body could become
trapped by moving parts such as the roof
mechanism, the trunk lid, or the side win-
dows. There is arisk of injury.
When opening or closing the roof, make sure
that no parts of the body are in the vicinity of
moving parts. Release the switch if somebody
becomes trapped. G
WARNING
If the vehicle speed exceeds 30 mph
(50 km/h), the soft top stops during the open- ing or closing procedure. This impairs your
view to the rear. There is arisk of an accident.
Reduce your speed to below 30 mph
(50 km/h) or stop the vehicle in accordance
with the traffic conditions. Press or pull the
soft-top switch againino rder to open or close
the soft top fully. Opening and closing X
When the vehicle is stationary, depress the
brake pedal.
X Select key position 2with the Start/Stop
button (Y page 119). X
To open: pull soft-top switch 0043until the
soft top is fully opened.
The Convertible Top in Operation Convertible Top in Operation
message appears in the multifunction dis-
play.
If, when opening, you drive at speeds above 30 mph (50 km/h) ,the opening procedure
is stopped and in the multifunction display
you see the Open/Close Convertible Open/Close Convertible
Top Completely
Top Completely message. Reduce your
speed againtob elow 30 mph (50 km/h)
and pull the soft-top switch againtoo pen
the soft top fully.
X To close: press and hold soft-top switch 0043
until the soft top is fully closed.
The Convertible Top in Operation
Convertible Top in Operation
message appears in the multifunction dis-
play.
If, when closing, you drive at speeds above
30 mph (50 km/h), the closing procedure is
stopped and in the multifunction display
you see the Open/Close Convertible Open/Close Convertible
Top Completely
Top Completely message. Reduce speed
back to under 30 mph (50 km/h) and push the soft top switch againtof ully close the
soft top. Soft top (Roadster)
79Opening and closing Z

Opening and closing using the Smart-
Key
Important safet ynotes G
WARNING
When opening or closing the soft top, there is ar isk that parts of the body could become
trapped by movin gparts such as the roof
mechanism, the trun klid, or the side win-
dows. There is arisk of injury.
When opening or closing the roof, make sure
that no parts of the body are in the vicinity of
movin gparts. Release the switch if somebody
becomes trapped.
Opening and closing i
The SmartKey must be close to the driv-
er's door handle.
X Point the tip of the SmartKey at the driver's
door handle.
X To open: press and hold the 0036button
on the SmartKey until the soft top is fully
opened.
The Convertible Top in Operation Convertible Top in Operation
message appears in the multifunction dis-
play.
X To close: press and hold the 0037button
on the SmartKey until the soft top is fully
closed.
The Convertible Top in Operation
Convertible Top in Operation
message appears in the multifunction dis-
play. The soft top and the side windows
close. Relocking the soft top
G
WARNING
If you do not lock the closed soft top, it may
open during ajourney. This could cause you to
lose control of the vehicle. There is arisk of an
accident.
Only drive with the soft top fully open or
locked closed. The soft top is not locked if:
R the Convertible Top in Operation Convertible Top in Operation
message appears in the multifunction dis-
play.
R you hear awarning tonef or up to ten sec-
onds when pulling away or while driving.
You can lock the soft top again if it is not
locked fully.
X Pull over and stop the vehicle safely as soon
as possible, paying attention to road and
traffic conditions.
X Select key position 2with the Start/Stop
button (Y page 119).
X Press the soft-top switch. Installing/removing the wind screen
G
WARNING
If the wind screen is incorrectly installed, it
could detach itself during ajourney and
endanger other road users. There is arisk of
an acciden tand injury.
Install the wind screen as described. Do not
place any objects on top of the installed wind screen.
! Install or remove the wind screen only
when the soft top is open. You could oth-
erwise damage the wind screen or the vehi-
cle interior.
! Mercedes-Benz recommends that you
only use wind screen swhich have been
tested and approved for Mercedes-Benz
vehicles. This helps to preven tdamage to
the vehicle.
The wind screen protects against wind when
driving with the soft top open. It is secured
between the roll bars.
The wind screen is in abag on the tank par-
tition wall in the trunk.
X Open the trunk. 80
Soft top (Roadster)Opening and closing

Useful information
i This Operator's Manual describes all
models and all standard and optional equip- ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please not ethat your vehicle may not be
equipped with all feature sdescribed. This
also applies to safety-related system sand
functions.
i Please read the information on qualified
specialist workshops (Y page 23).Overview of climat
econtrol systems Important safet
ynotes
Observ ethe settings recommende donthe
following pages. The windows could other-
wise fog up.
To preven tthe windows from foggin gup:
R switc hoff climat econtro lonly briefly
R switc hona ir-recirculation mode only
briefly
R switc hont he coolin gwith air dehumidifi-
cation function
R switc hont he defros twindshield function
briefly, if required
The automatic climat econtro lregulates the
temperature and the humidity in the vehicle
interior and filter sundesirable substances
out of the air.
Coupe: dual-zon eautomatic climat econtrol
is only operational when the engin eisrun-
ning. Optimum operation is only achieved
with the side windows closed.
Roadster: dual-zon eautomatic climate
contro lisonly operational when the engin eis
running. Optimum operation is only achieved
with the side windows and roof closed.
i When the weather is warm, ventilate the
vehicle for abrief period. This will speed up
the coolin gprocess and the desired interior
temperature will be reached more quickly. i
The integrated filter filter
sout most par-
ticles of dust and soot and completely fil-
ter sout pollen. It also reduces gaseous pol-
lutant sand odors. Aclogged filter reduces
the amount of air supplied to the vehicle
interior. For this reason ,you should always
observ ethe interval for replacin gthe filter,
which is specified in the Maintenance
Booklet. As it depends on environmental
conditions, e.g. heavy air pollution, the
interval may be shorter than stated in the
Maintenance Booklet. 106
Overview of climat
econtrol systemsClimat econtrol

You can wash the vehicle in an automatic car
wash fro mthe very start.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
! Never clean your vehicle in
aTouchless
Automatic Car Wash as these use special
cleaning agents. These cleaning agent scan
damage the paintwork or plastic parts.
! When washing your vehicle in
atow-
through car wash, use the SmartKey
instead of the Start/Stop button.
Start the engin eusing the SmartKey.. Move
the transmission to Nwith the E-SELECT
lever .Use the SmartKey to switc hthe
engin eoff again and the nturn the Smart-
Key to position 2.Make sure that you then
leave the SmartKey in position 2.You may
otherwise damage the vehicle, the trans-
missio northe car wash.
Check the transmission position in the
instrumen tcluster.
! Use the E‑SELECT lever to shift the trans-
missio ntoNbefore switching the engine
off .Ify ou open the driver's or front-
passenger door, the transmission remains
in this position for up to 30 minutes if the
SmartKey is in the ignition, even if the
engin eisswitched off .Ifyou do not shift the
transmission to Nusing the E‑SELECT lever
beforehand, it shift sautomatically to park-
ing position Pand lock sthe wheels if the
driver's or front-passenge rdoor is opened
and the engin eisswitched off .This may
damage the vehicle, the transmission or
the car wash.
Observe the information on maneuvering
(Y page 131). !
Before drivin
gintoana utomatic car wash,
make sure that it is suitable for the dimen- sion soft he vehicle. In particular, make
sure that:
R there is enough groun dclearance
betwee nthe vehicle underbody and the
guide rails of the automatic car wash.
R the clearance width of the automatic car
wash is sufficient ,particularly the width
of the guide rails.
R you enter the automatic car wash
straight and in the center of the guide
rails in order to avoid damagin gthe tires
or wheel rims.
Fold in the exterior mirrors befor ethe vehi-
cle is washed. The exterior mirrors could
otherwise be damaged.
! Make sure that:
R the side windows and the roof are com-
pletely closed
R the climat econtrol blower is switched off
R the windshield wiper switc hisatposition
0
The vehicle could otherwise be damaged.
! In portal car washes, the windshield wip-
ers may be move dupthe windshield by the
cleaning brushes when the ignition is
switched off.
Set the Start/Stop button to key position 2
to reset the windshield wipers to their orig-
inal position.
! Preferably use automatic car washes with
adjustable high-pressure pre-cleaning. This corresponds with the specification for the
Cabriolet program. In car washes that use
high water pressures, there is arisk that a
small amount of water may leak int othe
vehicle.
! Cabriolet:
do not treat the vehicle with
hot wax under any circumstances.
After using an automatic car wash, wipe off
wax and drying agent sfromt he windshield
and the wiper blades. This will prevent smears 224
CareMaintenance and care

Bar indicator
0043for trea dwearisi ntegrated
into the tire tread.
Treadwear indicator s(TWI) are required by
law. Six indicator sare positioned on the tire
tread. The yare visible once the trea ddepth is
approximately 00CDin (1.6 mm). If this is the
case ,the tire is so worn that it mus tbe
replaced. Selecting, mounting and replacing
tires
R Only mount tire sand wheel softhe same
typ eand make.
R Only mount tire softhe correct size onto
the wheels.
R Brea kinn ew tire satmoderate speeds for
the firs t60miles (100 km) .The yo nly reach
thei rfullp erformance afte rthis distance.
R Do not drive with tire swhich have too little
trea ddepth, as this significantl yreduces
the traction on we troads (hydroplaning).
R Replace the tire saftersix years at the lat-
est, regardless of wear. Winter operation
General notes
Have your vehicle winterproofe dataqualified
specialist worksho patthe onse tofwinter.
Observe the notes in the "Changing awheel"
section (Y page 270). Drivin
gwiths ummer tires
At temperatures below 45 ‡(+7† ), summer
tires experience aconsiderable loss in elas-
ticity and therefore traction and braking
power. Change the tires on you rvehicle to
M+S tires. Using summe rtires at very cold
temperatures coul dcause cracks to form,
thereb ydamaging the tires permanently.
Mercedes-Benz cannot accep tresponsibility
for this type of damage. M+S tires
G
WARNING
M+S tires with atire tread depth of less than
00CF in (4 mm )are not suitabl efor use in winter
and do not provide sufficient traction. There is
ar isk of an accident.
M+S tires with atread depth of less than 00CFin
(4 mm) must be replaced immediately.
At temperatures below 45 ‡(+7† ), use win-
ter tires or all-season tires. Both type softire
are identified by the M+S marking.
Only winter tires bearing the 004Dsnowflake
symbol in addition to the M+S marking pro-
vide the best possibl egrip in wintry road con-
ditions. Only these tires will allow driving
safety systems such as ABS and ESP ®
to
function optimally in winter. Thi sisbecause
these tires were specifically developed for
driving in snow.
Use M+S tires of the same make and tread on
allw heels to maintain safe handling charac-
teristics.
Always observe the maximu mpermissible
spee dspecified for the M+S tires you have
mounted.
When you have mounted the M+S tires:
X Check the tire pressure s(Ypag e253).
X Restart the tire pressure monitor
(Y pag e259). 252
Winte
roperationWheels and tires