2012 MERCEDES-BENZ CLS COUPE automatic transmission

Deactivating/activating th
eECO start/
stop function EC
Ob utton
X To switch off (except AMG vehicles):
press button :.
Indicator lamp ;on button :and the
¤ symbol in th emultifunction display go
out.
X To switch on (except AMG vehicles):
press button :.
Indicator lamp ;lights up. If all conditions
fo ra utomatic engin eswitch-off
(Y page 145) are fulfilled, the ¤symbol
is shown in green in th emultifunction dis-
play.
If no tall condition sfor automatic engine
switch-off (Y page 145) are fulfilled, the
¤ symbol is shown in yellow in th emul-
tifunction display. If this is th ecase, the
ECO start/sto pfunction is no tavailable.
X To switch off (AMG vehicles): press but-
ton :in drive program C.
or
X Switch to drive program S,S+ orM
(Y page1 52).
Indicator lamp ;on button :and the
¤ symbol in the multifunction display go
out.
The Stop/Start active or
Stop/Start inactive message in the AMG menu in the
multifunction display goes out. X
To switch on (AMG vehicles): press but-
ton :.
Indicator lamp ;lights up. If drive pro-
gram S,S+ orMis active, the automatic
transmission switches to drive program C.
If all conditions for automatic engine
switch-off (Y page145) are fulfilled, the
¤ symbol is show ningreen in the mul-
tifunction display.Ina ddition,the Stop/ Start active message is shown in the
AMG menu in the multifunction display.
If condition sfor automatic engin eswitch-
off have not been fulfilled, the (Y page 145)
¤ symbol will be shown in yellow. If this
is the case, the ECO start/stop function is
not available. In addition, the Stop/Start inactive message is shown in the AMG
menu in the multifunction display.
i If indicator lamp ;is off, the ECO start/
stop function has been deactivated man-
ually or as the result of amalfunction .The
engine will then not be switched off auto-
matically when the vehicle stops.
i Every time you switch on the engine using
the key or the Start/Stop button, the ECO
start/stop function is activated.
Automatic engine switch-off Method of operation
If the vehicle is braked to
astandstill in Dor
N,t he ECO start/stop function switches off
the engine automatically.
The ECO start/stop function is operational
and the ¤symbol is displayed in green in
the multifunction display, if:
R the indicator lamp in the ECO button is lit
green.
R the vehicle is stationary.
R the outside temperature is within the com-
fort range.
R the engine is at normal operating temper-
ature. Driving
145Driving and parking Z

R
the se ttemperature for the vehicle interior
has been reached.
R the batter yissufficiently charged.
R the system detects that the windscreen is
not misted up when the air-conditioning
system is switched on.
R the bonnet is closed.
R the driver's door is closed and the driver's
seat belt is fastened.
If conditions for automatic engin eswitch-off
have not been fulfilled, the ¤symbol will
be shown in yellow.
AMG vehicles: the AMG menu in the multi-
function display additionally shows the Stop/Start inactive message.
i If you shift the transmission from Rto D,
the ECO start/stop function is available
again oncet he¤ symbol reappears in
green in the multifunction display.
i All vehicles (except AMG vehicles):
automatic engin eswitch-off can take place
am aximum of four times consecutively (ini-
tial stop and three subsequent stops). The
¤ symbol is shown in yellow in the mul-
tifunction display after the engin ehas been
started automatically for the fourt htime.
The automatic engin eswitch-off is availa-
ble oncea gain when the ¤symbol is
shown in green in the multifunction display.
i AMG vehicles: times which the engine
can be automatically switched off.
i You can also activat ethe HOLD function
when the vehicle is stationary if the engine
has been switched off automatically. It is
then not necessary to continue applying
the brakes during the automatic stop
phase. When you depress the accelerator
pedal, the engin estart sautomatically and
the brakin geffec toft he HOLD function is
deactivated. Depress the accelerator pedal
gently, as the engin emust be started first.
i Durin gautomatic engin eswitch-off ,the
climate control system only operates at a
reduced capacity. If you require full climate control capacity, the ECO start/stop func-
tion can be deactivated by pressing the
ECO button (Y
page 145).
Automatic engine start The engin
eisstarted automatically if:
R you switch off the ECO start/stop function
by pressing the ECO button.
R you release the brakes when in transmis-
sion position Dor N,w hen the HOLD func-
tion is not active.
R you depress the accelerator pedal.
R you engage revers egear R.
R you move the transmission out of position
P.
R you switch to drive program S,S+ orM
(AMG vehicles).
R you unfasten your seat belt or open the
driver's door.
R the vehicle start storoll.
R the brake system requires this.
R the temperature in the vehicle interior devi-
ates from the set range.
R the system detects moisture on the wind-
screen when the air-conditionin gsystem is
switched on.
R the battery's charge status is too low.
i Shifting the transmission to position P
does not start the engine. 146
DrivingDriving and parking

Problem Possible causes/consequences and
M Solutions
Vehicles with
apetrol
engine:
The engine is not run-
ning smoothly and is
misfiring. There is
amalfunction in the engine electronics or in amechanical
componentoft he engine management system.
X Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
X Have the cause rectified immediately at aqualified specialist
workshop. The coolant tempera-
ture display is showing
more than 120 †. The
coolant warning lamp
may also be lit and a
warning tone may
sound. The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X
Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 299). Observe the warning
notes as you do so and top up the coolant if necessary. If the coolant level is correct, the engine radiator fan may be faulty.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X
If the coolant temperature is below 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic. Automatic transmission
Important safety notes
G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor
R,t he vehicle could pull away suddenly. There
is ar isk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do
not simultaneously accelerate. Selector lever
Overview of transmission positions Selector lever in AMG vehicles with
Pbutton
j Park position with parking lock
k Reverse gear
i Neutral
h Drive 148
Automatic transmissionDriving and parking

Transmission position and driv
epro-
gram display !
If the transmission positio ndisplay in the
multifunction display is not working, you
should pull away carefully to chec kwhether
the desired transmission position is
engaged. Ideally,y ou should select trans-
mission position Dand drive program C.Do
not restrict the shift range. :
Transmission position display
; Drive program display
The current transmission position and drive
program appearint he multifunction display. DIRECTS
ELECT lever
Overview of transmission positions P
Park position with parking lock
R Reverse gear
N Neutral
D Drive
The DIRECT SELECT leve risonthe right of the
steering column.
i The DIRECT SELECT lever always returns
to its original position. The current trans-
mission position P,R, Nor Dappears in the transmission position display
(Y
page 149) in the multifunction display.
Transmission position and drive pro-
gram display !
If the transmission position displayint he
multifunction displayisn ot working, you
should pull awayc arefully to check whether
the desired transmission position is
engaged. Ideally, you should select trans-
mission position Dand drive program Eor
S.Don ot restrict the shift range. :
Transmission position display
; Drive program display
The current transmission position and drive
program appearint he multifunction display.
i The arrows in the transmission position
displays how how and into which transmis-
sion positions you can change using the
DIRECT SELECT lever.
Engaging parkp osition P !
If th eengine speed is to ohigh, do no tshift
the automatic transmission directly from
D to R,f rom Rto Dor directly to P.Other-
wise, the automatic transmission could be
damaged.
X Push the DIRECT SELECT lever in the direc-
tion of arrow P. Automatic transmission
149Driving and parking Z

i
The automatic transmission shifts auto-
matically into park position Pif you:
R open the driver's door when the vehicle
is stationary and the transmission is in
position Dor R
R open the driver's door when driving at
very low speed with the transmission in
position Dor R
i Depress the brake and push the DIRECT
SELECT lever up or down to disengage the
parking lock. The transmission is in neutral
N.
If you want to shift from park position P
directly to Ror D:
R depress the brake and
R push the DIRECT SELECT lever up or
down past the first point of resistance.
Engaging reverse gear R !
Only shift the automatic transmission to
R when the vehicle is stationary.
X Push the DIRECT SELECT lever up past the
first point of resistance.
Neutral Nwith ECO start/stop function
activated The ECO start/stop function switches the
engine off automatically when the vehicle is
stationary if the vehicle is braked to
astand-
still in neutral N.
For further information on the ECO start/stop
function, see (Y page 144).
Shifting to neutral (N) X
Push the DIRECT SELECT lever up or down
to the first point of resistance.
Drive position Dwith ECO start/stop
function activated The ECO start/stop function switches the
engine off automatically when the vehicle is braked to
astandstill in transmission posi-
tion D.
For further information on the ECO start/stop
function, see (Y page 144).
Engaging drive position D X
Push the DIRECT SELECT lever down past
the first point of resistance. Transmission positions
B
Park position
This prevent
sthe vehicle from roll-
ing away when stopped. Do not
shift the transmission into position
P(Y page 159) unless the vehicle
is stationary.
The automatic transmission shifts
to Pautomatically if you:
R remove the key
R switch off the engine when in R
or Dand open one of the front
doors C
Reverse gear
Only shift the transmission to
R
when the vehicle is stationary. 150
Automatic transmissionDriving and parking

A
Neutral
Do not shift the transmission to
N
whil edriving. Otherwise, the auto-
matic transmission could be dam-
aged.
If ESP ®
is deactivated or faulty:
onl yshift the transmission to posi-
tion Nif the vehicl eisindangerof
skidding, e.g. on icy roads.
If you switch off the engine using
the key or the Start/Stop button,
the automatic transmission shifts
to neutral Nautomatically.
! Rolling in neutral Ncan lead to
damage to the transmission. 7
Drive
The automatic transmission
changes gear automatically. All
forward gears are available.
Changing gear
The automatic transmission shifts to the indi-
vidualg ears automaticallyw hen it is in trans-
mission position D.Gearshifting is deter-
mined by:
R as hift range restriction, if selected
R the selected drive program( Ypage 151)
R the position of the accelerator pedal
R the road speed Driving tips
Accelerator peda lposition Your style of driving influences how the auto-
matic transmission shift sgear:
R little throttle: early upshifts
R more throttle: late upshifts AMG vehicles When shifting down, the double-clutc
hfunc-
tion is active regardless of the currently selec-
ted drive program. The double-clutc hfunction
reduces load change reactions and is condu-
cive to asport ydriving style. The sound gen-
erated by the double-clutc hfunction depends
on th edrivep rogram selected.
Kickdown Use kickdown for maximum acceleration.
X
Depress th eaccelerato rpedal beyond the
pressure point.
The transmission shift stoalower gear
depending on the engin espeed.
X Ease off the accelerator pedal oncet he
desired speed is reached.
The automatic transmission shift sback up. Program selector button
General notes Example: program selector button
X
Press program selector button :repeat-
edly until the letter for the desired gearshift
program appears in the multifunction dis-
play.
The program selector button allows you to
choose between differen tdriving character-
istics. Automatic transmission
151Driving and parking Z

E
Economy Comfortable, economical
driving S
Sport Sporty driving style
M
Manual Manua
lgears hifting i
For furthe rinformation on the automatic
drive program, se e(Ypage 152).
i Thea utomatic transmission switches to
automatic drive program Eeach tim ethe
engine is started.
AM Gvehicles Drive program selecto
rwith manual drive program
X Turn drive program selector :until the
desired drive program appears in the mul-
tifunction display in the speedometer.
The drive program indicator on drive pro-
gram selector :light supinr ed. C
Controlled
Efficiency Comfortable, economical
driving
S
Sport Sporty drivin
gstyle S+
SportPlus Extremely sport
ydriving
style M
Manual Manual gearshifting
RS
RACE
START Optimal vehicle accelera-
tion from
astandstill i
For further information on the automatic
drive program, see (Y page 152). i
The automatic transmission switches to
automatic drive program Ceach tim ethe
engin eisstarted.
i RScannot be selected during normal driv-
ing. For further information on RACE
START, see (Y page 180). Steering wheel gearshift paddles
:
Left-han dsteerin gwheel gearshif tpaddle
; Right-hand steering wheel gearshif tpad-
dle
You can restrict or derestric tthe shif trange
by usin gthe steering wheel gearshif tpaddles.
You can chang egear yourself by usin gthe
steering wheel gearshif tpaddle in th emanual
driv eprogram.
i You can only chang egear wit hthe steer-
ing wheel gearshif tpaddles when th etrans-
mission is in position D. Automatic drive program
Drive program E(drive program Con AMG
vehicles) is characterised by th efollowing:
R comfort-oriente denginea nd automatic
transmission settings
R optimal fuel consumption resulting from
th ea utomatic transmission shiftin gup
sooner
R thev ehicle pullin gaway mor egently in
forward and revers egears, unless the
accelerator pedal is depressed fully 152
Automatic transmissionDriving and parking

R
increased sensitivity. This improves driving
stability on slipper yroad surfaces, for
example
R the automatic transmission shifting up
sooner. This result sinthe vehicle being
drive natl ower engine speeds and the
wheels being less likely to spin
Drive program S(or, in the case of AMG vehi-
cles, drive programs Sand S+)isc haracter-
ised by the following:
R sporty engine and automatic transmission
settings
R the vehicle pulling away in first gear
R the automatic transmission shiftin gup
later
R as aresult of the later automatic transmis-
sion shift points, the fuel consumption pos-
sibly being higher. Shift ranges
Introduction i
OnAMG vehicles andvehicles with
steering wheel gearshift paddles,y ou
can restrict or derestric tthe shift range
using the steerin gwheel gearshift paddles.
When the automatic transmission is in posi-
tion D,itisp ossible to restrict or derestrict
the shift range (Y page 153).
The shift range selected is shown in the mul-
tifunction display .The automatic transmis-
sion shifts only as far as the selected gear. Shift range: =
To use the engine's braking effect
5
To use the braking effect of the
engine on downhill gradients and
for driving:
R
on steep mountain roads
R in mountainous terrain
R in arduousc onditions 4
To use the braking effect of the
engine on extremely steep downhill
gradients and on long downhill
stretches
Restricting the shift range
X
Pull the left-hand steering wheel gearshift
paddle.
The automatic transmission shifts down
one gear and restrictst he shift range to the
relevant gear.
i If the engine exceeds the maximum
engine speed when shifting down, the auto-
matic transmission protectsa gainst engine
damage by not shifting down.
i If the maximum engine speed for the shift
range is reached and you continue to accel-
erate, the automatic transmission shifts up,
even if the shift range is restricted. This
prevents the engine from overrevving.
Extending the shift range X
Pull the right-hand steering wheel gearshift
paddle.
The shift range is derestricted. Automatic transmission
153Driving and parking Z