Page 171 of 481

170 Controls in detailAutomatic transmission*The current gear selector lever position
and the selected program mode (
M/C/S)
are indicated in the multifunction display
(
page 158).Activating manual shift program
Press program mode selector
switch1 repeatedly until the
M for
manual program modeM appears in
the multifunction display.
The transmission switches to the
manual program modeM. Automatic
shifting is switched off. The gear range
is not limited.
You can change the gears manually when
the gear selector lever is in positionD. You
can upshift or downshift through the gears
in succession.Upshifting
iFor information on automatic program
modesC orS, see “Automatic shift
program” (
page 163), “Gear selector
lever one-touch gearshifting”
(
page 164), and “Steering wheel
gearshift control one-touch gearshift-
ing” (page 165).
iThe manual program modeM will not
be stored. When the engine is turned
off with the manual program modeM
selected, the transmission will go to
the automatic program mode (CorS)
when the engine is restarted.
!In the manual program modeM, the
transmission will not upshift, even if
the engine has reached its overrevving
range. Shift up to the next gear before
the engine has reached its overrevving
range. Make absolutely certain that the
engine speed does not reach the red
marking on the tachometer
(page 24). Otherwise the engine
could be damaged which is not covered
by the Mercedes-Benz Limited
Warranty.
Page 172 of 481

171 Controls in detail
Automatic transmission*
Briefly press the gear selector lever to
the right in theD+direction.
or
Briefly press button2 on the right
side of the steering wheel
(page 167).
The transmission shifts to the next
higher gear.
If, instead of the manual program mode
symbolM, thep symbol appears in the
multifunction display (
page 158), shift to
the next higher gear. The fuel supply will
otherwise be interrupted to prevent the
engine from overrevving.Downshifting
Briefly press the gear selector lever to
the left in theD-direction.
or
Briefly press button1 on the left side
of the steering wheel (
page 167).
The transmission shifts to the next
lower gear.Kickdown
Using the kickdown when driving in the
manual program modeM is not possible.
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced
vehicle control. Your vehicle’s ABS will not
prevent this type of loss of control.iWhen you brake or stop, the transmis-
sion shifts down to a gear from which
you can easily accelerate or take off.
Page 173 of 481
172 Controls in detailAutomatic transmission*Deactivating manual shift program
Press the program mode selector
switch (
page 169) repeatedly
until
Cor
S appears in the multifunction
display.
or
Restart the engine.
The transmission will go to the
automatic program mode (C orS).
The manual program modeM is not
stored.Emergency operation
(Limp Home Mode)
If vehicle acceleration worsens or the
transmission no longer shifts, the trans-
mission is most likely operating in limp
home (emergency operation) mode. In this
mode only second gear and reverse gear
can be activated.
Stop the vehicle.
Move gear selector lever toP.
Turn off the engine.
Wait at least 10 seconds before
restarting.
Restart the engine.
Move gear selector lever to positionD
(for second gear) orR.
Have the transmission checked at an
authorized Mercedes-Benz Center as
soon as possible.
Page 181 of 481

180 Controls in detailClimate controlThe climate control is operational whenev-
er the engine is running. The system cools
or heats the interior depending on the se-
lected interior temperature and the cur-
rent outside temperature.Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the interior through the air distribution
system.
The air conditioning will not engage (no
cooling) if the A/Cmode is deactivated
(
page 179).
Warning!
G
When operating the climate control, the air
that enters the passenger compartment
through the air vents can be very hot or very
cold (depending on the set temperature).
This may cause burns or frostbite to unpro-
tected skin in the immediate area of the air
vents. Always keep sufficient distance be-
tween unprotected parts of the body and the
air vents. If necessary, use the air distribu-
tion controls (
page 179) to direct the air
to air vents in the vehicle interior that are
not in the immediate area of unprotected
skin.
Warning!
G
Follow the recommended settings for heat-
ing and cooling given on the following pag-
es. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
iSevere conditions (e.g. strong air pollu-
tion) may require replacement of the fil-
ter before its scheduled interval.
A clogged filter will reduce the air vol-
ume to the interior.
If the vehicle interior is hot, ventilate
the interior before driving off. The cli-
mate control will then adjust the interi-
or temperature to the set value much
faster.
Keep the air intake grille in front of the
windshield free of snow and debris.
When the retractable hardtop is closed,
do not obstruct air flow by placing ob-
jects on the air flow-through exhaust
slots below the rear window.
Page 186 of 481
185 Controls in detail
Climate control
Deactivating
Press buttonP (
page 179) again.
The indicator lamp on the button goes
out.
The previous settings are once again in
effect.Windshield fogged on the outside
Switch the windshield wipers on
(page 56).
Turn air distribution control3 to
positionaorY (
page 179).
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside (e.g. before driving
through a tunnel). This setting cuts off the
intake of outside air and recirculates the
air in the interior.
iThe cooling remains switched on.
Warning!
G
Fogged windows impair visibility, endanger-
ing you and others. If the windows begin to
fog on the inside, switching off the air
recirculation mode immediately should clear
interior window fogging. If interior window
fogging persists, make sure the air
conditioning (
page 187) is activated, or
press buttonP.
Page 187 of 481

186 Controls in detailClimate controlActivating
Briefly press button,
(page 179).
The indicator lamp on the button
comes on.Deactivating
Press button, (
page 179) again.
The indicator lamp on the button goes
out.
iThe air recirculation mode is activated
automatically at high outside tempera-
tures.
The indicator lamp on button, is
not lit when the air recirculation mode
is automatically switched on.
A quantity of outside air is added after
approximately 30 minutes.
Warning!
G
Never operate the side windows if there is
the possibility of anyone being harmed by
the closing procedure.
In the event that the closing procedure caus-
es potential danger, the closing of the door
windows can be immediately halted by re-
leasing the, button or by pressing the
respective power window switch.
The closing of the rear side windows can be
immediately halted by releasing the
,button.iIf you press button, and keep it
pressed, the side windows will close.
The closing of the side windows can be
immediately halted by releasing
button,.
iThe air recirculation mode is deactivat-
ed automatically:
after 5 minutes if the outside tem-
perature is below approximately
41°F (5°C)
after 5 minutes if the air condition-
ing is turned off
after 30 minutes if the outside tem-
perature is above approximately
41°F (5°C)
iIf you press button, and keep it
pressed, the side windows will open.
The opening of the side windows can
be immediately halted by releasing
button,.
Page 193 of 481
192 Controls in detailAutomatic climate control*
Item
1
Air volume control, manual
2
UAutomatic mode
3
PFront defroster
4
‚To increase temperature on
the left side
5
´Automatic climate control
on/off
6
‚To increase temperature on
the right side
7
FRear window defroster
(page 177)
8
Air distribution control, manual
9
TResidual heat/ventilation
a
œAC cooling on/off
b
ƒTo lower temperature on the
right side
c
ƒTo lower temperature on the
left side
d
,Air recirculation
e
Display
Page 194 of 481

193 Controls in detail
Automatic climate control*
The automatic climate control is operation-
al whenever the engine is running. You can
operate the automatic climate control sys-
tem in either the automatic or manual
mode. The system cools or heats the inte-
rior depending on the selected interior
temperature and the current outside tem-
perature.Nearly all dust particles, pollutants and
odors are filtered out before outside air en-
ters the interior through the air distribution
system.
The air conditioning will not engage (no
cooling) if the A/Cmode is deactivated
(
page 192).
Warning!
G
When operating the automatic climate con-
trol, the air that enters the passenger com-
partment through the air vents can be very
hot or very cold (depending on the set tem-
perature). This may cause burns or frostbite
on unprotected skin in the immediate area
of the air vents. Always keep sufficient dis-
tance between unprotected parts of the
body and the air vents. If necessary, use the
air distribution controls (
page 192) to di-
rect the air to air vents in the vehicle interior
that are not in the immediate area of unpro-
tected skin.
Warning!
G
Follow the recommended settings for heat-
ing and cooling given on the following pag-
es. Otherwise the windows could fog up,
impairing visibility and endangering you and
others.
iSevere conditions (e.g. strong air pollu-
tion) may require replacement of the fil-
ter before its scheduled interval.
A clogged filter will reduce the air vol-
ume to the interior.
If the vehicle interior is hot, ventilate
the interior before driving off. The cli-
mate control will then adjust the interi-
or temperature to the set value much
faster.
Keep the air intake grille in front of the
windshield free of snow and debris.
When the retractable hardtop is closed,
do not obstruct air flow by placing ob-
jects on the air flow-through exhaust
slots below the rear window.