
Beltsee Seat belts
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 198
Display message ............................ 215
Notes/function .............................. 180
see Active Blind Spot Assist
Bluetooth
®
Connecting another mobile
phone ............................................ 239
Searching for a mobile phone ........ 238
see also Digital Operator's Man-
ual .................................................. 234
Telephony ...................................... 237
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 205
Notes ............................................. 315
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Display message ............................ 211
Brakes
ABS .................................................. 62
Adaptive Brake Assist ...................... 66
BAS .................................................. 62
BAS PLUS with Cross-Traffic
Assist ............................................... 62
Brake fluid (notes) ......................... 315
Display message ............................ 203
HOLD function ............................... 162
Important safety notes .................. 148
Maintenance .................................. 149
Parking brake ................................ 145
Riding tips ...................................... 148
Warning lamp ................................. 226
Breakdown
Where will I find...? ........................ 270
see Flat tire
Brightness control (instrument
cluster lighting) ................................... 33
Bulbs
see Replacing bulbs
C
CaliforniaImportant notice for retail cus-
tomers and lessees .......................... 25
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
360° camera ................................. 267
AIRCAP .......................................... 265
Car wash ........................................ 262
Carpets .......................................... 269
Display ........................................... 268
Exhaust pipe .................................. 267
Exterior lights ................................ 266
Gear or selector lever .................... 268
Interior ........................................... 268
Matte finish ................................... 264
Notes ............................................. 262
Paint .............................................. 263
Plastic trim .................................... 268
Power washer ................................ 263
Rear view camera .......................... 267
Roof lining ...................................... 269
Seat belt ........................................ 269
Seat cover ..................................... 268
Sensors ......................................... 267
Soft top .......................................... 264
Steering wheel ............................... 268
Trim pieces .................................... 268
Washing by hand ........................... 263
Wheels ........................................... 265
Wind deflector ............................... 265
Wind screen ................................... 265
Windows ........................................ 266
Wiper blades .................................. 266
Wooden trim .................................. 268
Cargo tie down rings ......................... 242
CD
see also Digital Operator's Man-
ual .................................................. 234
CD player (on-board computer) ........ 194
Central locking
Automatic locking (on-board com-puter) ............................................. 200
Locking/unlocking (SmartKey) ........ 73
Index5 

R
RadioSelecting a station ......................... 194
see separate operating instructions
Radio mode
see also Digital Operator's Man-
ual .................................................. 234
Radio-wave reception/transmis-
sion in the vehicle
Declaration of conformity ................ 27
Reading lamp ..................................... 113
Rear compartment
Setting the temperature ................ 122
Rear fog lamp
Display message ............................ 211
Switching on/off ........................... 110
Rear seats
Display message ............................ 222
Rear view camera
Cleaning instructions ..................... 267
Display in the multimedia system .. 171
Function/notes ............................. 170
Switching on/off ........................... 171
Rear window defroster
Problem (malfunction) ................... 125
Switching on/off ........................... 124
Rear-view mirror
Anti-glare (manual) ........................ 105
Dipping (automatic) ....................... 106
Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 317
Refueling
Fuel gauge ....................................... 33
Important safety notes .................. 141
Refueling process .......................... 142
see Fuel
Remote control
Garage door opener ....................... 252
Programming (garage door
opener) .......................................... 253
Replacing bulbs
Important safety notes .................. 113
Overview of bulb types .................. 114
Reporting safety defects .................... 28
Rescue card ......................................... 29 Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 213
Warning lamp ................................. 230
see Fuel
Residual heat (climate control) ........ 125
Restraint system
Display message ............................ 207
Introduction ..................................... 40
Problem (malfunction) ................... 229
Warning lamp (function) ................... 40
Reversing feature
Side windows ................................... 82
Reversing lamps (display mes-
sage) ................................................... 211
Roadside As sistanc
e (breakdown)
.... 26
Roll bar
Display message ............................ 207
Operation ......................................... 52
Roof
Overview .......................................... 85
see Soft top
Roof lining and carpets (cleaning
guidelines) ......................................... 269
Roof load (maximum) ........................ 317
Route guidance
see also Digital Operator's Man-
ual .................................................. 234
S
SafetyChildren in the vehicle ..................... 57
see Occupant safety
Safety system
see Driving safety systems
SD memory card
Ejecting .......................................... 239
Inserting ........................................ 239
Inserting/removing ........................ 239
see also Digital Operator's Man-
ual .................................................. 234
Selecting ........................................ 194
Search & Send
see also Digital Operator's Man-
ual .................................................. 234
Index15 

Warning display
:Warning display
Active Blind Spot Assist is not active at speeds
below approximately 20 mph (30 km/h). Vehi-
cles in the monitoring range are then not indi-
cated.
When Active Blind Spot Assist is activated, indi-
cator lamp :in the exterior mirrors lights up
yellow at speeds of up to 20 mph (30 km/h). At
speeds above 20 mph (30 km/h), the indicator
lamp goes out and Active Blind Spot Assist is
operational.
If a vehicle is detected within the blind spot
monitoring range at speeds above 20 mph
(30 km/h), warning lamp :on the correspond-
ing side lights up red. This warning is always
given when a vehicle enters the blind spot mon-
itoring range from behind or from the side. When
you overtake a vehicle, the warning only occurs if the difference in speed is less than 7 mph
(12 km/h).
The yellow indicator lamp goes out if reverse
gear is engaged. Active Blind Spot Assist is not
operational.
The brightness of the warning lamps is auto-
matically adapted to the brightness of the sur-
roundings.
Visual and acoustic collision warning
If you switch on the turn signals to change lanes
and a vehicle is detected in the side monitoring
range, you receive a visual and acoustic collision
warning. You then hear a double warning tone
and red warning lamp :flashes. If the turn sig-
nal remains on, detected vehicles are indicated
by the flashing of red warning lamp :. There are
no further warning tones.
Course-correcting brake application
If Active Blind Spot Assist detects a risk of a lat-
eral collision in the monitoring range, a course-
correcting brake application is carried out. This
is meant to assist you in avoiding a collision.
GWARNING
A course-correcting brake application cannot always prevent a collision. There is a risk of an
accident.
Always steer, brake or accelerate yourself,
especially if Active Blind Spot Assist warns
you or makes a course-correcting brake appli-
cation. Always maintain a safe distance at the
sides.
If a course-correcting brake application occurs,
red warning lamp :flashes in the exterior mir-
ror and a dual warning tone sounds. In addition,
display ;appears in the multifunction display
underlining the danger of a side collision.
In very rare cases, the system may make an
inappropriate brake application. An inappropri-
ate course-correcting brake application may be
interrupted at any time if you steer slightly in the
opposite direction or accelerate, for example.
The course-correcting brake application is avail-
able in the speed range between 20 mph
(30 km/h) and 120 mph (200 km/h).
Either no braking application, or a course-cor-
recting brake application adapted to the driving
situation occurs if:
Rthere are vehicles or obstacles, e.g. crash
barriers, located on both sides of your vehicle.
Ra vehicle approaches you too closely at the
side.
Ryou have adopted a sporty driving style with
high cornering speeds.
Ryou clearly brake or accelerate.
Ra driving safety system intervenes, e.g. ESP®
or PRE-SAFE®Brake.
Driving systems185
Driving and parking
Z 

Display messagesPossible causes/consequences andMSolutions
$(USA
only)
J( Canada
only)
Check Brake Fluid
Level
There is no tenough brak eflui din th ebrak efluid reservoir .
In addition ,th e$ (USAonly) or J(Canada only) warning lamp
lights up in th einstrumen tcluste rand awarning tone sounds.
GWARNIN G
The braking effec tmay be impaired.
There is aris kof an accident.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions. Do no tcontinu edrivin g
under any circumstances.
XSecur eth evehicl eagainst rollin gaway (Ypage 144).
XConsult aqualified specialist workshop .
XDo notadd brak efluid .This does no tcorrec tth emalfunction .
#
CheckBrakePadWear
The brak epads/linings hav ereached their wear limit.
XVisit aqualified specialist workshop .
G
mbrace Inoperative
Oneor mor emain features of th embrace system are malfunctioning .
XVisitaqualified specialist workshop .
Collision Preven‐tionAssist Plu sCurrently Unavaila‐ble See Operator' sManual
COLLISION PREVENTION ASSIST PLU Sis temporarily no toperational.
Possibl ecauses are:
Rth eradar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation .
Rthesystem is outside th eoperating temperature range.
Rth eon-boar dvoltag eis to olow.
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
COLLISION PREVENTION ASSIST PLU Sis operational again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 144).
XRestart th eengine.
Collision Preven ‐tionAssist Plu sInoperative
COLLISION PREVENTION ASSIST PLU Sis temporarily inoperative due
to amalfunction .Adaptive Brake Assis tmay also hav efailed.
XVisit aqualified specialist workshop .
PRE-SAFE
Inoperative SeeOperator'sManual
Importan tfunction sof PRE-SAF E®havefailed. Al lother occupant
safet ysystems ,e.g. air bags ,remain available.
XVisit aqualified specialist workshop .
Display messages205
On-board computer and displays
Z 

Care
General notes
HEnvironmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible man- ner.
!For cleaning your vehicle, do not use any of
the following:
Rdry, rough or hard cloths
Rabrasive cleaning agents
Rsolvents
Rcleaning agents containing solvents
Do not scrub.
Do not touch the surfaces or protective films
with hard objects, e.g. a ring or ice scraper.
You could otherwise scratch or damage the
surfaces and protective film.
!Do not park the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after cleaning.
Braking heats the brake discs and the brake
pads/linings, thus drying them. The vehicle
can then be parked.
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use care products and cleaning agents recom-
mended and approved by Mercedes-Benz.
Washing the vehicle and cleaning the
paintwork
Automatic car wash
GWARNING
Braking efficiency is reduced after washing
the vehicle. There is a risk of an accident.
After the vehicle has been washed, brake
carefully while paying attention to the traffic
conditions until full braking power is restored.
!If DISTRONIC PLUS or the HOLD function is
activated, the vehicle brakes automatically in
certain situations.
To prevent damage to the vehicle, deactivate DISTRONIC PLUS and the HOLD function in
the following or other similar situations:
Rwhen towing the vehicle
Rin the car wash
!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 a risk that a
small amount of water may leak into the vehi-
cle.
!Make sure that the vehicle is not subse-
quently treated with hot wax.
!Never clean your vehicle in a Touchless
Automatic Car Wash as these use special
cleaning agents. These cleaning agents can
damage the paintwork or plastic parts.
!Make sure that:
Rthe side windows and the sliding sunroof or
soft top are fully closed.
Rthe ventilation/heating is switched off (the
OFF button has been pressed).
Rthe windshield wiper switch is in position 0.
Ot
herwise, the vehicle might be damaged.
!In car washes with a towing mechanism,
make sure that the automatic transmission is in transmission position N, otherwise the
vehicle could be damaged.
RVehicles with a SmartKey:
Do not remove the SmartKey from the igni-
tion lock. Do not open the driver's door or
front-passenger door when the engine is
switched off. Otherwise, the automatic
transmission selects park position Pauto-
matically and locks the wheels. You can
prevent this by shifting the automatic trans-
mission to Nbeforehand.
RVehicles with KEYLESS-GO:
Do not open the driver's door or front-
passenger door when the engine is
switched off. Otherwise, the automatic
transmission selects park position Pauto-
matically and locks the wheels.
Observe the following to make sure that the
automatic transmission stays in position N:
262Care
Maintenance and care 

Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced imme-
diately.
!Do not use acidic wheel cleaning products
to remove brake dust. This could damage
wheel bolts and brake components.
!Do not park the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after cleaning.
Braking heats the brake discs and the brake
pads/linings, thus drying them. The vehicle
can then be parked.
Cleaning the windows
GWARNING
You could become trapped by the windshield wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
!Do not use dry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the inside of the windows. Do
not touch the insides of the windows with
hard objects, e.g. an ice scraper or ring. There
is otherwise a risk of damaging the windows.
!Clean the water drainage channels of the
windshield and the rear window at regular
intervals. Deposits such as leaves, petals and pollen may under certain circumstances pre-
vent water from draining away. This can lead
to corrosion damage and damage to elec-
tronic components.
XClean the inside and outside of the windows
with a damp cloth and a cleaning product that
is recommended and approved by Mercedes-
Benz.
Cleaning wiper blades
GWARNING
You could become trapped by the windshield wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
!Do not pull the wiper blade. Otherwise, the
wiper blade could be damaged.
!Do not clean wiper blades too often and do
not rub them too hard. Otherwise, the graph-
ite coating could be damaged. This could
cause wiper noise.
!Hold the wiper arm securely when folding
back. The windshield could be damaged if the
wiper arm smacks against it suddenly.
XFold the windshield wiper arms away from the
windshield.
XCarefully clean the wiper blades with a damp
cloth.
XFold the windshield wiper arms back again
before switching on the ignition.
Cleaning the exterior lighting
!Only use cleaning agents or cleaning cloths
which are suitable for plastic light lenses.
Unsuitable cleaning agents or cleaning cloths
could scratch or damage the plastic light len- ses.
XClean the plastic lenses of the exterior light-
ing using a wet sponge and a mild cleaning
agent, e.g. Mercedes-Benz car shampoo or
cleaning cloths.
Mirror turn signals
!Only use cleaning agents or cleaning cloths
that are suitable for plastic lenses. Unsuitable
cleaning agents or cleaning cloths could
scratch or damage the plastic lenses of the
mirror turn signals.
XClean the plastic lenses of the mirror turn sig-
nals in the exterior mirror housing using a wet
sponge and mild cleaning agent, e.g.
266Care
Maintenance and care