2011 MERCEDES-BENZ CLS COUPE engine

Deactivating the delayed switch-off tempora-
rily:
X Before leaving the vehicle, tur nthe key to
position 0in the ignition lock.
X Turn the key to position 2in the ignition
lock and back to position 0.
The delayed switch-off is deactivated.
Delayed switch-off is reactivated the next
time you start the engine.
Activating/deactivating the interior light-
ing delayed switch-off
If the Light. delay function is activated and
you remove the key from the ignition lock, the
interior lighting remains on for 20 seconds.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Light submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Light. delay function.
When the Light. delay function is acti-
vated, the vehicle interior is displayed in
red in the multifunction display.
X Press the abutton to save the setting.
Vehicle Setting permanent SPEEDTRONIC
You can set permanent SPEEDTRONIC
(Y page 164) using the Limit speed (win‐ter tyres): function.
X Press the =or; button on the steer-
ing wheel to select the menu.
X Press the :or9 button to select the
Vehicle submenu.
X Press the abutton to confirm.
X Press :or9 to select the Limit speed (winter tyres): function.
You will see the current setting.
X Press the abutton to confirm.
X Press :or9 to adjust permanent
SPEEDTRONIC in increments of 10 (240 km/h to
160 km/h ). The
Off setting
switches permanent SPEEDTRONIC off.
X Press the abutton to store the entry.
Switching the automatic locking feature
on/off
If you select the Automatic door lock func-
tion, the vehicle is centrally locked above a
speed of around 15 km/h.
i For further information on the automatic
locking feature, see (Y page 74).
X Press the =or; button on the steer-
ing wheel to select the Sett. menu.
X Press the :or9 button to select the
Vehicle submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Automatic door lock function.
When the Automatic door locks func-
tion is activated, the vehicle doors are dis-
played in red in the multifunction display.
X Press the abutton to save the setting.
Activating/deactivating the acoustic
locking confirmation
If you activate the Acoustic Lock function,
an acoustic signal sounds when you lock or
unlock the vehicle. When unlocking, the sig-
nal sounds once. When locking, it sounds
three times.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Vehicle submenu.
X Press the abutton to confirm.
X Press :or9 to select the Acous‐ tic Lock function.
If the Acoustic Lock function is activated,
the & symbol is displayed in red in the
multifunction display.
X Press the abutton to save the setting. Menus and submenus
209On-board computer and displays Z

X
Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Convenience submenu.
X Press the abutton to confirm.
X Press the :or9 button to select the
Auto. fold in function.
When the Auto. fold in function is acti-
vated, the vehicle's exterior mirror is dis-
played in red in the multifunction display.
X Press the abutton to save the setting.
Resetting to factor ysettings For safety reasons, no
tall functions are reset:
the Limit Speed (winter tyres) function
in permanent SPEEDTRONIC can only be set
in the Vehicle submenu. If you want to reset
the Daytime driving lights in the
Light submenu, you must tur
nthe key in the igni-
tion lock to position 1.
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Factory setting submenu.
X Press the abutton to confirm.
The Reset all settings? message
appears.
X Press the :or9 button to select
No or
Yes .
X Press the abutton to confirm the selec-
tion.
If you select Yes , the multifunction display
shows a confirmation message. AMG menu in AMG vehicles
AMG displays X
Press =or; on the steering wheel
to select the AMG menu. :
Digital speedometer
; Gear indicator
= Upshift indicator
? Engine oil temperature
A Coolant temperature
Upshift indicator UP =
indicates that the
engine has reached the overrevving range
when in the manual gearshift program.
Upshift indicator UP =
fades out other mes-
sages until you have shifted up.
When the engine temperature is below
80 †, the oil temperature gauge flashes.
Avoid driving at full engine output during this
time.
RACETIMER Displaying and starting RACETIMER
You can use the RACETIMER to store lap
times.
When RACETIMER is displayed, you cannot
adjust the volume using the
WandX
buttons on the steering wheel.
X Press =or; on the steering wheel
to select the AMG menu.
X Press the 9button repeatedly until the
RACETIMER is shown. :
Lap
; RACETIMER 212
Menus and submenusOn-board computer and displays

You can start the RACETIMER when the
engine is running or if the key is in position
2 in the ignition lock.
X To start: press the Wbutton to start the
RACETIMER.
X To display the intermediate time: press
the X button to show the intermediate
time.
The intermediate time is displayed for five
seconds.
X To stop: press the Wbutton to stop the
RACETIMER.
The RACETIMER interrupts timing when you
stop the vehicle and turn the key to position
1 in the ignition lock. When you turn the key
to position 2or 3and the npress the W
button, timing is continued.
Storing the lap time and starting anew lap
It is possible to store a maximum of sixteen
laps.
X Press the Xbutton on the steering
wheel to show the intermediate time during
timing.
The intermediate time is displayed for five
seconds.
X Press the Xbutton again within five
seconds.
The displayed intermediate tim eis stored
as a lap time.
Timing starts for a new lap. The new lap is
timed from when the intermediate time is
called up. :
RACETIMER
; Fastest lap time (best lap)
= Lap Resetting the current lap
X
Press the Wbutton on the steering
wheel to stop the RACETIMER.
X Press Xto reset the lap time to "0”.
Deleting all laps
X Press the Wbutton on the steering
wheel to stop the RACETIMER.
X Press the abutton.
Reset Race Timer? appears in the multi-
function display. X
Press :to select Yes and press
a
to confirm.
All laps are deleted.
Overall evaluation This function is shown if you have stored at
least one lap and stopped the RACETIMER.
X
Press =or; on the steering wheel
to select the AMG menu.
X Press the 9button repeatedly until the
overall evaluation is shown. :
RACETIMER overall evaluation
; Total time driven
= Average speed
? Distance covered
A Top speed Menus and submenus
213On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
PRE-SAFE
Functions cur‐
rently limited See
Owner's Manual G
Risk of accident
PRE-SAFE ®
Brake is temporarily inoperative if:
R the DISTRONIC PLUS cover in the radiator grille is dirty.
R the sensors in the bumpers are dirty.
R its function is impaired due to heavy rain or snow.
R the rada rsensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
R you deactivate ESP ®33
R the system is outside the operating temperature range.
R the on-board voltage is too low.
PRE-SAFE ®
Brake is operational again and the display message
disappears if:
R the dirt (e.g. slush) drops away while the vehicle is in motion.
R the system detects that the sensors are fully available again.
R Reactivate ESP ®33
.
R the system is within the operating temperature range.
If the display message continues to be displayed:
X Clean the DISTRONIC PLUS cover in the radiator grille
(Y page 274).
X Clean the bumpers (Y page 274).
X Restart the engine.
X Wait until the battery is sufficiently charged. PRE-SAFE
Functions limited
See Owner's Manual G
Risk of accident
PRE-SAFE ®
Brake is faulty. BASP LUS or the distance warning sig-
nal may also have failed.
X Visit a qualified specialist workshop. Child seat in
wrong position
See Owner's Manual G
Risk of injury
Vehicles with automatic child seat recognition on the front-
passenger seat: the child seat is positioned incorrectly.
X Fit the child seat in the correct position. 33
AMG vehicles only. Display messages
217On-board computer and displays Z

Engine
Display messages Possible causes/consequences and
M Solutions
+
Top
up coolant See
Owner's Manual The coolant level is too low.
X
Top up the coolant, observing the warning notes before doing
so (Y page 268).
X If the coolant needs topping up more often than usual, have the
engine coolant system checked at a qualified specialist work-
shop. ?
Coolant Stop vehi‐
cle Switch engine
off The coolant is too hot.
X
Pull ove rand stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Make sure tha tthe air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Wait until the display message disappears before restartingt he
engine. Otherwise, there is a risk of engine damage.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately. The poly-V-belt may have torn.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Open the bonnet.
X Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! do not continue driving. The engine could otherwise overheat.
X Consult a qualified specialist workshop.
If the poly-V-belt is OK:
X Wait until the display message disappears before restartingt he
engine. Otherwise, there is a risk of engine damage.
X Pay attention to the coolant temperature display.
X Visit a qualified specialist workshop. ? The fan motor is faulty.
X
If the coolant temperature is less than 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop-start driving. 224
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
M Solutions
# The battery is no
tbeing charged.
Possible causes are:
R a faulty alternator
R a torn poly-V-belt
R a malfunction in the electronics
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Open the bonnet.
X Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! do not continue driving. The engine could otherwise overheat.
X Consult a qualified specialist workshop.
If the poly-V-belt is OK:
X Visit a qualified specialist workshop. 4
Check eng. oil
lev. when next
refuelling The engine oil level has dropped to a critical level.
Aw
arning tone also sounds.
X Chec kthe oil level (Y page 267).
X If necessary, top up the engine oil (Y page 268).
X Have the engine checked for leaks if the engine oil needs top-
ping up more often than usual. 8
Reserve fuel level The fuel level has dropped into the reserve range.
Operation of the auxiliary heating is deactivated when the fuel level
drops into the reserve range.
X
Refuel at the nearest filling station. C There is only a very small amount of fuel in the fuel tank.
The auxiliary heating cannot be operated.
X
Refuel at the nearest filling station without fail. ¸
Replace
air cleaner Vehicles with a diesel engine: the engine air filter is dirty and must
be replaced.
X
Visit a qualified specialist workshop. !
Clean
the fuel fil‐
ter Vehicles with a diesel engine: there is water in the fuel filter. The
water must be drained off.
X
Visit a qualified specialist workshop. Display messages
225On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
Blind Spot Assist
currently unavail‐
able See Owner's
Manual
or
Active Blind Spot
Assist currently
unavailable See
Owner's Manual Blind Spot Assis
torActive Blind Spot Assist is temporarily inop-
erative if:
R the sensors are dirty.
R its function is impaired due to heavy rai norsnow.
R the rada rsensor system is outside the operating temperature
range.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
The yellow 9indicator lamps also light up in the exterior mir-
rors.
Blind Spot Assist or Active Blind Spot Assist is operational again
and the display message disappears if:
R the dirt (e.g. slush) drops away while the vehicle is in motion.
R the system detects that the sensors are fully available again.
R the radar sensor system is back within the operatin gtempera-
ture range.
If the display message continues to be displayed:
X Clean the sensors (Y page 274).
X Restart the engine. Blind Spot Assist
inoperative
or
Active Blind Spot
Assist inoperative Blind Spot Assist or Active Blind Spot Assist is faulty.
The yellow
9indicator lamps also light up in the exterior mir-
rors.
X Visit a qualified specialist workshop. Park Assist
cancelled The driver's door is open and the driver's seat belt has not been
fastened.
X Repeat the parking process with the seat belt fastened and the
driver's door closed. You have inadvertently touched the multifunction steering wheel
while steering intervention was active.
The vehicle has started to skid and ESP
®
has intervened.
X Use Active Park Assist again later (Y page 173). Display messages
229On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
Park Assist
inoperative You have just performed a large number of turning or parking
manoeuvres.
Active Par
kAssist will become available againa fter approximately
10 minutes (Y page 173).
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Switch off and restart the engine.
X If the warning message does not disappear: consul taqualified
specialist workshop. PARKTRONIC is faulty.
X
Visi taqualified specialist workshop. Park Assist
switched off The vehicle is parked.
Awarning tone also sounds.
The display message disappears automatically. DISTRONIC PLUS
off DISTRONIC PLU
Shas been deactivated (Y page 160). If it is deac-
tivated automatically, a warning tone also sounds. DISTRONIC PLUS
available again DISTRONIC PLU
Sis operational againa fter having beentempo-
rarily unavailable. You can now reactivate DISTRONIC PLUS
(Y page 154). 230
Display messagesOn-board computer and displays