2012 MERCEDES-BENZ CLS COUPE belt

Obstructions and stationary vehicles
DISTRONIC PLUS does not brake for obsta-
cles or stationary vehicles. If, for example, the
detected vehicle turn sacorner and reveals
an obstacle or stationary vehicle, DISTRONIC
PLUS will not brake for these.
Crossing vehicles DISTRONIC PLUS may mistakenly detect
vehicles that are crossing your lane. Activat-
ing DISTRONIC PLUS at traffic lights with
crossing traffic, for example, could cause
your vehicle to pull away unintentionally. HOLD function
General notes The HOLD function can assist the driver in the
following situations:
R when pulling away ,especially on steep
slopes
R when manoeuvrin gonsteep slopes
R when waiting in traffic The vehicle is kept stationary without the
driver having to depress the brake pedal.
The braking effec tiscancelled and the HOLD
function is deactivated when you depress the
accelerator pedal to pull away.
Activation conditions You can activate the HOLD function if:
R
the vehicle is stationary.
R the engine is running or it has been auto-
matically switched off by the ECO start/
stop function.
R the driver's door is closed or your seat belt
is fastened.
R the parking brake is released.
R the bonnet is closed.
R the transmission is in position D,Ror N.
R DISTRONIC PLUS is deactivated.
Activating the HOLD function G
WARNING
The vehicle's brakes are applied when the
HOLD function is activated. For this reason,
deactivate the HOLD function if the vehicle is
to be set in motion by other means (e.g. in a
car wash or by towing).
X Make sure that the activation conditions
are met.
X Depress the brake pedal.
X Quickly depress the brake pedal further
until ë appears in the multifunction dis-
play.
The HOLD function is activated. You can
release the brake pedal.
i If depressing the brake pedal the first
time does not activate the HOLD function,
wait briefly and then try again. Driving systems
179Driving and parking Z

Deactivating th
eHOLDf unction G
WARNING
Never get out of th evehicle when th eHOLD
function is activated.
The HOLD function mus tnever be operated
or deactivated by apassenger or from outside
th ev ehicle.
The HOLD function doe snot replac ethe park-
ing brake and must not be used for parking.
The braking effec tofthe HOLD function is
cancelled and the vehicle could roll away if:
R the HOLD function is deactivated by
depressing the accelerator pedal or the
brake pedal.
R there is amalfunction in the system or an
interruption in the power supply, e.g. bat-
tery failure.
R the electrical system in the engine com-
partment, the batter yorthe fuses are tam-
pered with.
R the batter yisdisconnected.
If you leave the vehicle or park it, deactivate
the HOLD function and secure the vehicle
against rolling away.
The HOLD function is deactivated automati-
cally if:
R you accelerat eand the transmission is in
position Dor R.
R you shift the transmission to position P.
R you depress the brake pedal again with a
certain amount of pressure until ëdis-
appears from the multifunction display.
R you activat eDISTRONIC PLUS.
When the HOLD function is activated, the
transmission is shifted automatically to posi-
tion Pif:
R the driver's door is open and the driver's
seat belt is unfastened.
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/
stop function.
R the bonnet is opened. R
as ystem fault occurs.
R the power supply is not sufficient. RACE START
Important safety notes G
WARNING
RACE START is only available when SPORT
handling mode is activated. SPORT handling
mode will only be able to stabilise the vehicle
to alimited degree if the vehicle start stoskid
or aw heel start stospin. The vehicle is there-
fore harder to control at the threshold range.
You could lose control of the vehicle and
cause an accident.
RACE START should only be used on closed
off circuits. Always adapt your driving style to
suit the prevailing road and weather condi-
tions.
i RACE START is only available in AMG vehi-
cles.
RACE START enables optimum acceleration
from astanding start .The precondition for
this is asuitable high-grip road surface.
Activation conditions You can activat
eRACE START if:
R the doors are closed.
R the engine is running and it has reached an
operatin gtemperature of approximately
80 †. This is the case when the engine oil
temperature in the multifunction display
stops flashing.
R SPORT handling mode is activated
(Y page 66).
R the steerin gwheel is in the straight-ahead
position.
R the vehicle is stationary and the brake
pedal is depressed (left foot).
R the transmission is in position D.180
Driving systemsDriving and parking

R
if you are predominantly drivin gslower
than 80 km/h or faster than 180 km/h
R if you are currently using COMAND APS or
making atelephon ecall with COMAND APS
R if the tim ehas been set incorrectly
R in active drivin gsituations, such as when
you change lanes or change your speed
Warning and display messages in the
multifunction display If ATTENTION ASSIS
Tisactive, you will be
warne dnosooner than 20 minutes after your
journey has begun. You the nhear an inter-
mittent warning tonet wice and theAtten‐ tion Assist: Drowsiness detected mes-
sage appears in the multifunction display.
X Activat eATTENTION ASSISTu sing the on-
board computer (Y page 220).
Symbol :appears in the multifunction
display.
X If necessary, take abreak.
X Press the abutton to confirm the mes-
sage.
On long journeys, take regular breaks in good
time to allow yourself to rest properly. If you
do not take abreak, you will be warned again
after 15 minutes at the earliest. This will only
happen if ATTENTION ASSISTs till detects
typical indicators of fatigue or increasing lap-
ses in concentration.
ATTENTION ASSISTisr eset and starts
assessing your tiredness again when you con-
tinue your journey if:
R you switch off the engine.
R you take off your seat belt and open the
driver's door, e.g. for achange of drivers or
to take abreak. Speed Limit Assist
Important safet ynotes G
WARNING
Speed Limit Assist is only an aid and may
detec tspeed limit signs incorrectly or not at
all.
The system may be impaired or may not func-
tion if:
R ther eisp oor visibility, e.g. due to snow,
rain, fog or spray.
R ther eisg lare, e.g. from the sun or from
oncoming traffic.
R the windscreen is dirty, misted up or cov-
ered, for instance by asticker, in the vicinity
of the camera.
R the traffic signs are covered, for instance
by dirt, snow or trees.
R the traffic signs are poorly illuminated.
R ther eare ambiguous traffic signs, for
instance near roadworks or on multi-lane
roads.
Traffic signs always have priorit yover the
Speed Limit Assist display. Speed Limit Assist
cannot detec troad and traffic conditions. It is
not asubstitute for attentive driving.
Always pay attention to traffic condition sand
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourself and others. :
Speed Limit Assist camera
Speed Limit Assist shows you detected speed
limits in the multifunction display. Dat afrom Driving systems
193Driving and parking Z

X
Press the :or9 button to select the
Easy Entry/Exit: function.
If the Easy Entry/Exit function is activa-
ted, the vehicle steerin gwheel is displayed
in red in the multifunction display.
X Press the abutton to save the setting.
Further information on the EASY-ENTRY/EXIT
feature (Y page 104).
Switching the belt adjustment on/off
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 ato confirm.
X Press the :or9 button to select the
Belt adjustment function.
When the Belt adjustment function is
activated, the vehicle seat belt is displayed
in red in the multifunction display.
X Press the abutton to save the setting.
For further information on belt adjustment,
see (Y page 50).
Switching the fold-in mirrors when lock-
ing function on/off
This function is only availabl eonvehicles with
Memory Function (Y page 107).
When you activat ethe Auto. fold in func-
tion, the exterior mirrors are folded in when
the vehicle is locked. When you unlock the
vehicle and then open adoor, the exterior
mirrors fold out again.
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 ato confirm.
X Press the :or9 button to select the
Auto. fold in function.
If the Auto. fold in function is activated,
the vehicle's exterior mirror is displaye din
red in the multifunction display.
X Press the abutton to save the setting. :
To fold the exterior mirrors in or out
If you have switched the Auto. fold in function on and you fold the exterior mirrors
in using button
:,they will not fold out auto-
matically (Y page 105).
You can then only fold out the exterior mirrors
using button :.
Resetting to factor ysettings X
Pres sthe = or; button on th esteer-
ing wheel to selec tthe Settings menu.
X Press the :or9 button to select the
Factory setting submenu.
X Press ato 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 have selected Yes ,t
he multifunction
displays howsaconfirmation message.
For safety reasons, not all 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 turn the key to position
1
in the ignition lock. Menus and submenus
227On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
PRE-SAFE
inoperative See
Owner'
sManual Importan
tfunction sofPRE-SAFE ®
have failed .All other occupant
safet ysystems, e.g. airbags, remain available.
X Visit aqualified specialist workshop immediately. PRE-SAFE
Function
scur‐ rently limited See
Owner's Manual PRE-SAFE
®
Brake is temporarily inoperative. Possible causes:
R the function is impaired due to heavy rain or snow.
R the sensors in the radiator trim and in the bumper sare dirty.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tion soro ther sources of electromagnetic radiation.
R AMG vehicles: ESP ®
is deactivated.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
Onc ethe causes listed above no longer apply, the display message
goes out.
PRE-SAFE ®
Brake is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible ,paying
attention to road and traffic conditions.
X Secure the vehicle against rollin gaway (Y page 159).
X Clean the sensors in the radiator trim and in the bumpers
(Y page 304).
X Restar tthe engine.
X AMG vehicles: reactivate ESP ®
(Y page 66). PRE-SAFE
Functions cur‐
rently limited See
Owner's Manual PRE-SAFE
®
Brake is inoperative due to afault. BAS PLUS or the
distance warning signal may also have failed.
X Visit aqualified specialist workshop. ü If the symbol appears in the multifunction display,
aseat belt
tongue has been inserted intoar ear seat belt buckle.
For further information on the status indicator for the rear seat
belts: (Y page 51). Display messages
235On-boardcomputer and displays Z

Display messages Possible causes/consequences and
M Solutions
ý If th
esymbol appears in th emultifunction display, aseat belt
tongue has not been inserted in arear seat belt buckle.
G WARNING
As eat belt which is not worn correctly, or which has not been
engaged in the seat belt buckle correctly, cannot provide the
intended level of protection.
This poses an increased risk of injury.
X If necessary, ask the occupants in the rear to fasten their seat
belts (Y page 49).
For further information on the status indicator for the rear seat
belts, (Y page 51). 6
Restraint syst.
malfunction Con‐
sult workshop There is
amalfunction in the SRS (Supplemental Restraint Sys-
tem). The 6warning lamp also lights up in the instrument clus-
ter.
G WARNING
The airbags or belt tensioners may either be triggered uninten-
tionally or, in the event of an accident, may not be triggered.
This poses an increased risk of injury.
X Visit aqualified specialist workshop.
For further information about the Supplemental Restraint System,
see (Y page 41). 6
Front
left malfunc‐
tion Consult work‐
shop orFront right
malfunction Con‐
sult workshop SRS has malfunctioned at the fron
tonthe left or right. The 6
warning lamp also lights up in the instrument cluster.
G WARNING
The airbags or belt tensioners may either be triggered uninten-
tionally or, in the event of an accident, may not be triggered.
This poses an increased risk of injury.
X Visit aqualified specialist workshop. 236
Display messagesOn-boar
dcomputer and displays

Display messages Possible causes/consequences and
M Solutions
6
Rea
rl eftm alfunc‐ tio
nC onsul twork‐ shop or
Rea rr ight malfunction Con‐
sul
tw orkshop G
WARNING
The airbags or belt tensioners may either be triggered uninten-
tionally or, in th eevent of an accident, may no tbetriggered.
This poses an increased risk of injury.
SRS has malfunctioned at the rear on the left or right. The 6
warning lamp also lights up in the instrument cluster.
X Visit aqualified specialist workshop. 6
Left
windowbag mal‐
functio
nConsult workshop or
Right windowbag malfunc‐
tion Consult work‐
shop There is
amalfunction in the left-hand and/or right-hand window-
bag.
The 6 warning lamp also lights up in the instrument cluster.
G WARNING
The left or right windowbag may either be triggered unintentionally
or, in the event of an accident, may not be triggered.
This poses an increased risk of injury.
X Visit aqualified specialist workshop. Lights
i Display messages about LEDs:
This display message will only appear if all LEDsh ave failed.Display messages Possible causes/consequences and
M Solutions
b
Left cornering
light or
Right cor‐ nering light The left or right-hand cornering light is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 120).
or
X Visit aqualified specialist workshop. b
Left dipped beam
or
Right dipped beam The left or right-hand dipped-beam headlamp is faulty.
X
Check whether you are permitted to change the bulb yourself
(Y page 120).
or
X Visit aqualified specialist workshop. Display messages
237On-boardcomputer and displays Z

Display messages Possible causes/consequences and
M Solutions
# The battery is no
tbeing charged.
Aw arning tone also sounds.
Possible causes:
R fault yalternator
R torn poly-V-belt
R am alfunctio nintheelectronics
X Stop th evehicle immediately, payin gattentio ntoroad and traf-
fic conditions, and switch off the engine.
X Secure the vehicle against rolling away (Y page 159).
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 aqualified specialist workshop.
If the poly-V-belt is OK:
X Visit aqualified specialist workshop. 4
Check eng. oil
lev. when next
refuelling The engine oil level has dropped to the minimum level.
Aw
arning tone also sounds.
X Chec kthe oil level when next refuelling, at the latest
(Y page 298).
X If necessary, top up the engine oil (Y page 298).
X Have the engine checked at aqualified specialist workshop if
the engine oil needs topping up more often than usual. 4
Add
1 litre engine
oil when next refu‐
elling AMG vehicles: the engine oil level is too low.
X
Check the oil level when next refuelling, at the latest
(Y page 298).
X If necessary, top up the engine oil (Y page 298).
X Have the engine checked at aqualified specialist workshop if
the engine oil needs topping 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. 242
Display messagesOn-board computer and displays