i
If you press one of the two buttons and
do not hear a tone, the relevant setting has
already been selected.
You can also switch the automatic locking
function on and off using the on-board
computer (Y page 159). Unlocking the driver's door
(mechanical key)
If the vehicle can no longer be unlocked with
the SmartKey, use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered (Y page 58).
X Take the mechanical key out of the
SmartKey (Y page 64).
X Insert the mechanical key into the lock of
the driver's door as far as it will go.
Coupe X
To unlock: insert the mechanical key into
the lock of the driver's door as far as it will
go.
X Turn the mechanical key clockwise to
position 0048.
The door is unlocked.
X Turn the mechanical key back and remove
it.
X To open the door: press button0043.
The handle moves out slightly from the
door. X
Pull the handle out as far as it will go.
X Swing the door upwards by the handle.
Roadster X
Turn the mechanical key counter-clockwise
to position 0047.
The door is unlocked.
X Turn the mechanical key back and remove
it.
X Insert the mechanical key into the
SmartKey. Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey, use the mechanical key.
Coupe 0043
Button for extending the handle
X To lock: lock the front-passenger door
manually from the inside (Y page 69).
X Leave the vehicle and close the driver's
door. Doors
71Opening and closing Z
Problems with the "Cooling with air dehumidification" function
Problem Possible causes/consequences and
0050
0050Solutions The indicator lamp in
the
005A button
flashes three times or
remains off. The
"Cooling with air
dehumidification"
function cannot be
switched on. Cooling with air dehumidification has been deactivated due to a
malfunction.
X
Visit a qualified specialist workshop. Setting climate control to automatic
General notes In automatic mode, the set temperature is
controlled automatically. The system
automatically regulates the temperature of
the dispensed air, the airflow and the air
distribution.
The automatic mode functions optimally
when the "Cooling with air dehumidification"
function is activated. If necessary, cooling
with air dehumidification can be deactivated.
If you deactivate the "Cooling with air-
dehumidification" function, the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
deactivate the cooling with air-
dehumidification function only briefly.
Activating/switching X
Select key position 2with the Start/Stop
button (Y page 119).
X Set the desired temperature. X
To activate: press the0058button.
The indicator lamp in the 0058button lights
up. Automatic air distribution and airflow
are activated.
X To switch to manual mode: press the
0058 button.
The indicator lamp in the 0058button goes
out. Automatic air distribution and airflow
are deactivated. Setting the temperature
Different temperatures can be set for the
driver's and front-passenger sides.
X Select key position 2with the Start/Stop
button (Y page 119).
X To increase/reduce: turn controls0043and
006C clockwise or counter-clockwise
(Y page 107).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †). Setting the air distribution
Air distribution settings 0061
Directs air through the defroster vents
009C Directs air through the center and side
air vents
009B Directs air through the footwell air
vents 110
Operating the climate control systemsClimate control
009F
Directs air through the center, side and
footwell vents
008F Directs the airflow to the entire vehicle
interior
0087 Directs air through the defroster,
center and side air vents
0086 Directs air through the defroster and
footwell vents
Setting the air distribution X
Select key position 2with the Start/Stop
button ( Ypage 119).
X Press the 008Fbutton repeatedly until the
desired symbol appears in the display.
The indicator lamp in the 0058button goes
out. Automatic control is deactivated and
the air distribution is controlled according
to the selected setting. Setting the airflow
X Select key position 2with the Start/Stop
button ( Ypage 119).
X To increase/reduce: press the0097or
0095 button. Switching the mono function on/off
The MONO function is only available in
vehicles for Canada.
You can use the MONO function to adopt the
temperature and air distribution settings on
the driver's side for the front-passenger side.
X Press the 005Bbutton.
The indicator lamp in the 005Bbutton lights
up or goes out. Defrosting the windshield
i You should only select the "Windshield
defrosting" function until the windshield is
clear again. X
Select key position 2with the Start/Stop
button ( Ypage 119).
X To activate: press the0064button.
The indicator lamp in the 0064button lights
up.
The system automatically switches to the
following functions:
R high airflow
R high temperature
R air distribution to the windshield and
front side windows
R air-recirculation mode off
X To deactivate: press the0064button.
The indicator lamp in the 0064button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
X Press the 0058button.
The indicator lamp in the 0064button goes
out. Airflow and air distribution are set to
automatic mode.
or
X Turn controls 0043or006C clockwise or
counter-clockwise ( Ypage 107).
or
X Press the 0097or0095 button. Switching maximum cooling on/off
The MAX COOL function is only available in
vehicles for the USA.
MAX COOL is only operational when the
engine is running.
When you activate MAX COOL, climate
control switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on Operating the climate control systems
111Climate control
Activating RACE START
X
Depress the brake pedal with your left foot
and keep it depressed.
X Turn the drive program selector switch
clockwise (Y page 124) until the RS
indicator on the switch lights up in red.
The multifunction display shows the
message RACE START
RACE START Confirm: Paddle Confirm: Paddle
UP
UP Cancel: Paddle DOWN
Cancel: Paddle DOWN.
i If the conditions for activation are not
fulfilled, RACE START is canceled. The
RACE START Not Possible
RACE START Not Possible message
appears in the multifunction display.
X To cancel: pull the left-hand steering wheel
paddle shifter (DOWN) (Y page 125).
The multifunction display shows the RACE
RACE
START Canceled START Canceled message.
X To confirm: pull the right-hand steering
wheel paddle shifter (UP) ( Ypage 125).
The RACE START Available Depress
RACE START Available Depress
gas pedal
gas pedal message appears in the
multifunction display.
i If you do not depress the accelerator
pedal within a few seconds, RACE START is
canceled. The multifunction display shows
the RACE START Canceled
RACE START Canceled message.
X Fully depress the accelerator pedal.
The engine speed is increased.
The RACE START Release brake to
RACE START Release brake to
start start message appears in the
multifunction display.
i If you do not release the brake pedal
within a few seconds, RACE START is
canceled. The multifunction display shows
the RACE START Canceled
RACE START Canceled message.
X Take your foot off the brake pedal while
keeping the accelerator pedal fully
depressed.
The vehicle pulls away at maximum
acceleration.
The RACE
RACE START START Active
Active message appears
in the multifunction display.
RACE START is deactivated when the vehicle
reaches a speed of approximately 30 mph (50 km/h). Drive program
S+is activated.
SPORT handling mode remains switched on.
RACE START is deactivated immediately if
you release the accelerator pedal during
RACE START or if any of the activation
conditions are no longer fulfilled. The RACE
RACE
START Not Possible START Not Possible orRACE START
RACE START
Canceled
Canceled message appears in the
multifunction display.
i If RACE START is used repeatedly within
a short period of time, it is only available
again after the vehicle has been driven a
certain distance. Automatic drive program
Drive program Cis characterized by the
following:
R comfort-oriented engine and transmission
settings
R optimal fuel consumption resulting from
the transmission shifting up sooner
R the vehicle pulling away more gently in
forward and reverse gears, unless the
accelerator pedal is depressed fully
R increased sensitivity. This improves driving
stability on slippery road surfaces, for
example
R the transmission shifting up sooner; This
results in the vehicle being driven at lower
engine speeds and the wheels being less
likely to spin
Drive programs Sand S+are characterized
by the following:
R sporty engine and transmission settings
R the transmission shifting up later and
shifting down dynamically
R as a result of the later transmission
upshifts, the fuel consumption may be
higher
R if a period of dynamic driving is followed by
an extended phase with a constant
accelerator pedal position, the vehicle 126
AMG SPEEDSHIFT DCT 7-speed sports trans
missionDriving and parking
G
WARNING
The engine cooling system is pressurized,
particularly when the engine is warm. When
opening the cap, you could be scalded by hot
coolant spraying out. There is a risk of injury.
Let the engine cool down before opening the
cap. Wear eye and hand protection when
opening the cap. Open the cap slowly half a
turn to allow pressure to escape.
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
X Set the Start/Stop button to key position
2.
X Check the coolant temperature display in
the "AMG" menu (Y page 161).
The coolant temperature must be below
158 ‡ (70 †). X
Slowly turn cap 0043half a turn counter-
clockwise and allow excess pressure to
escape.
X Turn cap 0043further counter-clockwise and
remove it.
If the coolant is at the level of the marker
bar in the filler neck when cold, there is
enough coolant in coolant expansion
tank 0044.
If the coolant level is approximately 0.6 in
(1.5 cm) above the marker bar in the filler
neck when warm, there is enough coolant
in coolant expansion tank 0044.X
If necessary, add coolant that has been
tested and approved by Mercedes-Benz.
X Replace cap 0043and turn it clockwise as far
as it will go.
You will find further information about coolant
in the "Technical data" section
(Y page 283).
Windshield washer system and
headlamp cleaning system G
WARNING
Certain components in the engine
compartment, such as the engine, radiator
and parts of the exhaust system, can become
very hot. Working in the engine compartment
poses a risk of injury.
Where possible, let the engine cool down and
touch only the components described in the
following. G
WARNING
Windshield washer concentrate is highly
flammable. If it comes into contact with hot
engine components or the exhaust system it
could ignite. There is a risk of fire and injury.
Make sure that no windshield washer
concentrate is spilled next to the filler neck.
The washer fluid reservoir is used for both the
windshield washer system and the headlamp
cleaning system. Engine compartment
221Maintenance and care Z
X
Do not remove any foreign objects which
have penetrated the tire, e.g. screws or
nails.
X Take the TIREFIT kit out of the trunk
(Y page 232). X
Open the TIREFIT kit and remove "max.
80 km/h" sticker 006C.
X Affix sticker 006Cwithin the driver's field of
vision.
i If TIREFIT leaks out, allow it to dry. It can
then be removed like a layer of film.
If you get TIREFIT on your clothing, have it
cleaned as soon as possible with
perchloroethylene.
Comply with the manufacturer's safety
instructions on the tire inflation compressor
label and on the tire sealant bottle.
i You will also find operating instructions
0087 in the lid of the TIREFIT kit.
X Pull the cable and filler hose 006Dout of the
housing. X
Unscrew flanged cap 0083. X
Unscrew the cap from tire sealant
bottle 0043. Make sure that the aluminum
film is not damaged when doing so. X
Screw tire sealant bottle 0043clockwise
tightly onto flange seal 006E.
This pierces the aluminum film.
X Remove the cap from the valve on the faulty
tire.
X Make sure that pressure release screw 006B
is closed.
X Remove the dust protection cap from filler
hose 006D. X
Screw the end of filler hose 006Donto tire
valve 006F.
X Make sure that on/off switch 0044on the tire
inflation compressor is set to 0.
X Insert connector 0085into the 12 V socket
(Y page 203).
X Select key position 2with the Start/Stop
button ( Ypage 119).
i The battery discharges during tire
inflation compressor usage. For this 234
Flat tireBreakdown assistance