
Pulling away ................................... 153
Releasing the parking lock
manually  ........................................ 162
Selector lever  ................................ 156
Starting  .......................................... 153
B
Backrest Folding forward/back  ....................110
Backrest (display message)  ............. 237
Bag hook  ............................................ 253
BAS (Brake Assist System)  ................. 65
BAS PLUS (Brake Assist System
Plus*)  .................................................... 65
Battery Charging  ........................................ 294
Checking (SmartKey)  .......................78
Display message  ............................ 228
Important safety guidelines
(SmartKey)  ....................................... 77
Jump-starting  ................................. 296
Replacing (SmartKey)  ......................78
Safety notes  .................................. 293
Belt
see Seat belts                                           
Blind Spot Assist
Activating/deactivating (on-
board computer)  ............................ 208
Display message  ............................ 230
Function/notes  ............................. 194
Brake fluid
Notes  ............................................. 338
Brake fluid level  ................................ 276
Brake lamp (display message)  ......... 223
Brakes ABS  .................................................. 64
BAS  .................................................. 65
BAS PLUS  ........................................ 65
Brake fluid (notes)  .........................338
Display message  ............................ 221
Important safety notes  ..................168
Maintenance  .................................. 169
Parking brake  ................................ 166
Warning lamp ................................. 240
Breakdown
see Accident (notes)                                 
see Flat tire                                               
Bulbs
High-beam headlamps  ...................128
Low-beam headlamps  ....................127
Overview  ........................................ 127
Parking lamps  ................................ 128
Standing lamps (front)  ...................128
Turn signals (front) ......................... 128
C
CAC (Customer Assistance Center)  .........21
California
Important notice for retail
customers and lessees  ....................19
Calling up a malfunction
see Display messages                               
Capacities
see Technical data                                    
Care
AIRCAP  .......................................... 280
Carpets  .......................................... 284
Car wash ........................................ 277
Display  ........................................... 282
Gear or selector lever  ....................283
Headlamps ..................................... 282
Notes  ............................................. 277
Paint  .............................................. 279
Plastic trim  .................................... 283
Power washer  ................................ 278
Rear view camera  .......................... 282
Roof lining ...................................... 284
Seat belt  ........................................ 284
Seat covers  .................................... 283
Sensors  ......................................... 282
Soft top .......................................... 279
Steering wheel  ............................... 283
Tail pipes  ....................................... 282
Trim strips  ..................................... 283
Washing by hand  ........................... 278
Wheels  ........................................... 279
Wind deflector  ............................... 280
Windows  ........................................ 281
Wind screen  ................................... 280
Wiper blades  .................................. 281
Wooden trim  .................................. 283
Cargo tie down rings  ......................... 253
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Panorama roof with power tilt/
sliding panel Opening/closing  ............................ 102
Resetting  ....................................... 103
Parking  ............................................... 165
Parking aid Parking Guidance ........................... 189
PARKTRONIC  ................................. 186
Rear view camera  .......................... 192
Parking brake  .................................... 166
Parking Guidance  .............................. 189
Display message  ............................ 230
Parking lamp (display message)  ...... 224
Parking lock Releasing manually (automatic
transmission)  ................................. 162
Parking position
Exterior mirror on the front-
passenger side ............................... 115
PARKTRONIC
Activating/deactivating  .................187
Function/notes  ............................. 186
Malfunction .................................... 189
Problem  ......................................... 189
Range of the sensors  .....................186
Warning display  ............................. 187
PASSENGER AIRBAG OFF indicator
lamp (only Canada)  ............................. 47
PASSENGER AIRBAG OFF indicator
lamp (only USA)  ................................... 42
Pedals  ................................................. 167
Permanent display (on-board
computer)  .......................................... 209
Plastic trim (cleaning instructions)  . 283
Power washers  .................................. 278
Power windows see Side windows                                     
Pre-emptive occupant safety
system
see PRE-SAFE ®
 system                             
PRE-SAFE ®
 Brake (vehicles with
DISTRONIC PLUS) Activating/deactivating (on-
board computer)  ............................ 207
Function/notes ................................ 68PRE-SAFE ®
 Brake (vehicles with
DISTRONIC PLUS) Display message  ............................ 215
Warning lamp ................................. 247
PRE-SAFE ®
 system
Display message  ............................ 214
Operation  ......................................... 51
Product information  ............................ 18
Program selector button  .................. 158
Pulling away Automatic transmission  .................153
R
Radar sensor system Display message  ............................ 230
Radar sensor system (on-board
computer)  .......................................... 211
Radio Changing stations (on-board
computer)  ...................................... 204
see separate operating instructions         
Range (on-board computer)  ............. 202
Rear compartment Setting the air vents  ......................146
Setting the temperature  ................141
Rear fog lamp (display message)  ..... 224
Rear seat backrest Display message  ............................ 237
Folding forwards/back  ..................252
Rear seat backrest (display
message)  ............................................ 237
Rear view camera Function/notes  ............................. 192
Rear view camera (cleaning
instructions)  ...................................... 282
Rear-view mirror Anti-glare (manual)  ........................114
Dipping (automatic)  .......................115
Rear window blind  ............................ 256
Rear window heating Malfunction .................................... 144
Switching on/off  ........................... 144
Refueling  ............................................ 162
Remote control Programming (garage door
opener)  .......................................... 265
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could cause an accident. Personal or fatal
injury to you or others may be the result.
i This equipment has been approved by the
FCC as a "Vehicular Radar System". The
radar sensor system is intended for use in
an automotive radar system only. Removal,
tampering, or altering of the device will void
any warranties, and is not permitted by the
FCC. Do not tamper with the device in any
way.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
BAS PLUS can detect obstacles that are in the
path of your vehicle for an extended period of
time. Should you approach a detected
obstacle quickly, BAS PLUS calculates the
braking force necessary to avoid a rear-end
collision. Should you additionally apply the
brakes, BAS PLUS will automatically increase
the braking force to a level suitable for the
traffic conditions.
If BAS PLUS demands particularly high
braking force, PRE-SAFE ®
 is activated
simultaneously.XKeep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally again when:
R you release the brake pedal
R no obstacle is detected in front of your
vehicle
R there is no longer any danger of a rear-end
collision
BAS PLUS is then deactivated.
At speeds up to approximately
40 mph  (70 km/h), BAS PLUS can also detect
stationary obstacles, for example, stopped or
parked vehicles.
For BAS PLUS to assist you when driving, the
radar sensor system must be switched on and
operational. You can check this by activating
DISTRONIC PLUS ( Y page 174) or via the
"radar sensor" function in the on-board
computer( Y page 211).GWarning!
BAS PLUS will only respond with brake
assistance if it has clearly detected an object.
Detection can be impeded by
R dirty or covered sensors
R snowfall or heavy rain
R disturbance from other radar sources
R strong radar reflection such as in parking
garages
BAS PLUS uses radar signals that are not
reflected well by narrow objects and
absorptive materials. For this reason BAS
PLUS will not react to persons, animals, and
approaching traffic or cross-traffic.
BAS PLUS may not detect narrow vehicles
driving in front of you, such as motorcycles
and vehicles driving offset from your vehicle
center.
Following a collision or accident-related
damage to the front end of the vehicle, have
the configuration and operation of the radar
sensors checked at an authorized Mercedes-
Benz Center.
If BAS PLUS is not available due to a
malfunction in the radar sensor system, the
brake system remains available with full
brake boosting effect and BAS.
ESP ®
 (Electronic Stability Program)
Important safety notes
GWarning
Observe "Important safety notes"
( Y  page 64).
If ESP ®
 detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilize the
vehicle. If necessary, the engine output is also
modified to keep the vehicle on the desired
course within physical limits. ESP ®
 assists
66Driving safety systemsSafety
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Immediately brake your vehicle to increase
the distance between your vehicle and the
vehicle driving in front of you. The warning
sound is intended as a final caution that you
have not interceded with your own braking
inputs to avoid a potentially dangerous
situation. Do not wait for the operation of the
warning signal to intercede with your own
braking, as that will result in potentially
dangerous emergency braking which will not
always result in an impact being avoided.
Tailgating increases the risk of an accident.GWarning!
The PRE-SAFE ®
 Brake is a convenience
system designed to assist the driver during
vehicle operation. The responsibility for the
vehicle speed and the distance to the vehicle
ahead, including most importantly brake
operation to assure safe stopping distance,
always remains with the driver.
Always pay attention to traffic conditions
even while the PRE-SAFE ®
 Brake is switched
on. Otherwise, you may not be able to
recognize dangerous situations until it is too
late and could cause an accident resulting in
personal or fatal injury to you or others.
i USA only: this device has been approved
by the FCC as a "Vehicular Radar System".
The radar sensor system is intended for use
in an automotive radar system only.
Removal, tampering, or altering of the
device will void any warranties, and is not
permitted by the FCC. Do not tamper with
the device in any way.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
i Canada only: this device complies with
RSS-210 from Industry Canada. Operation
is subject to the following two conditions:
1. This device may not cause interference,
and
2. This device must withstand any
interference received, including
interference that may cause undesired
operation.
Removal, tampering, or altering of the
device will void any warranties, and is not
permitted. Do not tamper with the device
in any way.
Any unauthorized modification to this
device could void the user's authority to
operate the equipment.
With the help of the radar sensor system,
PRE-SAFE ®
 Brake can detect obstacles that
are in front of your vehicle for an extended
period of time. If you approach an obstacle
and PRE-SAFE ®
 Brake detects a risk of a
collision, the system will initially alert you
both visually and acoustically. If you do not
brake or steer, the vehicle will at first
automatically brake slightly. In the event of
an increased risk of a collision, PRE-SAFE ®
 is
activated ( Y page 51). If the risk of collision
remains and you do not brake, take evasive
action or accelerate significantly, the vehicle
may perform automatic emergency braking.GWarning!
The PRE-SAFE ®
 Brake will only respond with
brake assistance if it has clearly detected an
object. Detection can be impeded by:
R dirty or covered sensors
R snowfall or heavy rain
R disturbance from other radar sources
R strong radar reflection such as in parking
garages
The PRE-SAFE ®
 Brake uses radar signals that
are not reflected well by narrow objects and
absorptive materials. For this reason the PRE-
SAFE ®
 Brake will not react to persons,
animals, and approaching traffic or cross-
traffic.
The PRE-SAFE ®
 Brake may not detect narrow
vehicles driving in front of you, such as
motorcycles and vehicles driving offset from
your vehicle center.
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GWarning
Depending on the vehicle speed, PRE-SAFE®
Brake brakes your vehicle with a maximum of
13 ft/s 2
 (4 m/s 2
) before a possible hard stop.
This corresponds to about 40 % of the
maximum deceleration ability of your vehicle.
The driver must apply the brakes additionally
in order to prevent a collision. The self-acting
hard stop will be initiated when the imminent
danger of a collision exists, e.g. when an
evasive maneuver cannot avoid an accident.
In order to maintain the appropriate distance
to the vehicle in front and thus prevent a
collision, you must apply the brakes yourself.
At speeds up to approximately
40 mph (70 km/h), PRE-SAFE ®
 Brake can
also detect stationary obstacles, for example
stopped or parked vehicles.
GWarning!
If you do not receive visual or acoustic
warning signals, the PRE-SAFE ®
 Brake may
R not have recognized the collision risk
R have been deactivated
R be malfunctioning
Apply the brakes yourself to avoid a collision.
XTo activate:  activate PRE-SAFE ®
 Brake in
the on-board computer ( Y page 207).
The  Ä  symbol appears in the lower
multifunction display, as long as the HOLD
function is not activated ( Y page 184).
On vehicles with parking guidance, the  P
gear must be engaged for the icon to be
displayed.
For PRE-SAFE ®
 Brake to assist you when
driving, the radar sensor system must be
switched on and operational.
PRE-SAFE ®
 Brake does not always detect
complex traffic situations properly. You can
terminate the braking action of PRE-SAFE ®
Brake in a non-critical driving situation at any
time if:
R an acoustic and visual warning occurs
R the vehicle brakes
To end this, you can either depress the
accelerator pedal further, activate kickdown
or release the brake pedal.
The braking action of PRE-SAFE ®
 Brake is
ended automatically if:
R you maneuver to avoid the obstacle
R you drive slower than approximately
9 mph (15 km/h)
R there is no longer an obstacle detected in
front of your vehicle
R there is no longer any danger of a collision
Following a collision or accident-related
damage to the front end of the vehicle, have
the configuration and operation of the radar
sensors checked. Choose a qualified
specialist workshop for this which has the
necessary specialist knowledge and tools for
the work required. Mercedes-Benz
recommends that you use an authorized
Mercedes-Benz Center for this purpose.
Anti-theft systems
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct key.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
key that is left inside the vehicle.
XTo activate with the SmartKey:  remove
the SmartKey from the ignition lock.XTo activate with KEYLESS-GO:  switch the
ignition off and open the driver's door.XTo deactivate:  switch on the ignition.70Anti-theft systemsSafety
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mirror using adjustment button = as long
as the indicator lamp is lit.
XPress adjustment button = up, down, to
the right or to the left until the exterior
mirror is set to a position which provides
you with a good overview of traffic
conditions.
Exterior mirror out of position 
If an exterior mirror has been pushed out of
position, proceed as follows:
XMove the exterior mirror into the correct
position manually.
Automatic anti-glare mirrors
GWarning!
The auto dimming function does not react if
incoming light is not aimed directly at sensors
in the interior rear view mirror.
The interior rear view mirror and the exterior
rear view mirror on the driver's side do not
react, for example, if the rear window
sunshade is in raised position.
Light hitting the mirror(s) at certain angles
(incident light) could blind you. As a result,
you may not be able to observe traffic
conditions and could cause an accident.
The rear-view mirror and the exterior mirror
on the driver's side automatically go into anti-
glare mode if the ignition is switched on and
incident light from headlamps strikes the
sensor in the rear-view mirror.
The mirrors do not go into anti-glare mode if
reverse gear is engaged or the interior lighting
is switched on.
Parking position for the exterior
mirror on the front-passenger side
Setting and storing the parking position
You can position the front-passenger side
exterior mirror in such a way that you can see
the rear wheel on that side as soon as you
engage reverse gear. You can store this
position.
XMake sure that the vehicle is stationary and
that the key is in position 2 in the ignition
lock.
XPress button ; for the exterior mirror on
the front-passenger side.
XEngage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
XUse adjustment button = to adjust the
exterior mirror to a position which allows
you to see the rear wheel and the curb.
The parking position is stored.
iIf you shift the transmission to another
position, the exterior mirror on the front-
passenger side returns to the driving
position.
iYou can also store the parking position
using memory button M ?.
XWith the key in position 2 in the
ignition lock and with the exterior
mirror on the front-passenger side
activated, use adjustment button = to
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PARKTRONIC
Important safety notesGWarning!
The PARKTRONIC is a supplemental system.
It is not intended to, nor does it replace, the
need for extreme care. The responsibility
during parking and other critical maneuvers
always remains with the driver.
GWarning!
Make sure no persons or animals are in or
near the area in which you are parking/
maneuvering. Otherwise, they could be
injured.
PARKTRONIC is an electronic parking aid with
ultrasonic sensors. It indicates visually and
audibly the distance between your vehicle
and an object.
PARKTRONIC is activated automatically when
you:
R switch on the ignition.
R shift the transmission to position  D, R  or
N .
R release the parking brake.
PARKTRONIC is deactivated at speeds above
11 mph (18 km/h). It is reactivated at lower
speeds.
PARKTRONIC monitors the area around your
vehicle using six sensors in the front bumper
and four sensors in the rear bumper.
:Sensors in the front bumper, left-hand
side (example)Range of the sensors
The sensors must be free of dirt, ice and
slush; otherwise they may not function
correctly. Clean the sensors regularly, taking
care not to scratch or damage them
( Y  page 282).
Side view, Coupe (example)
Top view, Coupe (example)
Front sensors
CenterApprox. 40 in (100 cm)CornersApprox. 24 in (60 cm)
Rear sensors
CenterApprox. 48 in (120 cm)CornersApprox. 32 in (80 cm)
!  When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer drawbars.
PARKTRONIC does not detect such objects
when they are in the immediate vicinity of
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the vehicle. You could damage the vehicle
or the objects.
Ultrasonic sources such as an automatic
car wash, a truck's compressed-air brakes
or a pneumatic drill could cause
PARKTRONIC to malfunction.
Minimum distanceCenterApprox. 8 in (20 cm)CornersApprox. 6 in (15 cm)
If there is an obstacle within this range, all
warning displays light up and a warning tone
sounds. If the distance falls below the
minimum, the distance may no longer be
shown.
Warning displays
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is located
on the dashboard above the center air vents.
The warning display for the rear area in the
Coupe is located on the headliner in the rear
compartment; in the Cabriolet, it is between
the rear seats.
Warning display for the front area
:Segments on the left-hand side of the
vehicle;Segments on the right-hand side of the
vehicle=Segments showing operational readiness
The warning display for each side of the
vehicle is divided into five yellow and two red
segments. PARKTRONIC is operational if
yellow segments showing operational
readiness  = light up.
The selected transmission position
determines which warning display is active
when the engine is running.Transmission 
positionWarning displayDFront area activatedR  or NRear and front areas
activatedPNo areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle.
From the:
R sixth segment onwards, you will hear an
intermittent warning tone for
approximately two seconds.
R seventh segment onwards, you will hear a
warning tone for approximately two
seconds. This indicates that you have now
reached the minimum distance.
Deactivating/activating PARKTRONIC
:To deactivate/activate PARKTRONIC;Indicator lamp
If indicator lamp  ; lights up, PARKTRONIC is
deactivated.
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