air condition MERCEDES-BENZ E-CLASS COUPE 2011 User Guide

It is possible to make use of the residual heat
of the engine to continue heating the station-
ary vehicle for up to 30 minutes after the
engine has been switched off. The heating
time depends on the temperature that has
been set.
Coupé: the residual heat function only works
optimally when the side window sand pano-
rama sliding sunroo fare closed.
Cabriolet: the residualh eatfunction only
work soptimally when th esoftt op is closed.
i The blower will run at alow speed regard-
less of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
i It is possible that the residual heat func-
tion may be activated automatically an hour
after the key is removed. The vehicle is then
ventilated for 30 minutes to dry the air-
conditioning system.
X Turn the key to position 0in the ignition
lock or remove it.
X To activate: press theÌbutton.
The indicator lamp above the Ìbutton
lights up.
X To switch off: press theÌbutton.
The indicator lamp above the Ìbutton
goes out.
i Residua lheat is deactivated automati-
cally:
R after about 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R if the coolant temperature is too low Auxiliary heating
Important safety notes G
WARNING
Exhaust fumes are produced when the auxili-
ary heating is in operation. Inhaling these
exhaust fumes can be poisonous. You should
therefor eswitch off the auxiliary heating in
confined spaces without an extraction sys-
tem, e.g. agarage. G
WARNING
When operating the auxiliary heating, parts of
the vehicle may become very hot, and highly
inflammable material such as fuels could be
ignited. Operating the auxiliary heating is thus
prohibited at filling station sorwhen your vehi-
cle is being refuelled. You must therefore
switch off the auxiliary heating at filling sta-
tions.
! Operating the auxiliary heating/ventila-
tion draws on the vehicle battery. After you
have heated or ventilated the vehicle a
maximum of two times, drive for alonger
distance.
i Switch on the auxiliary heating regularly,
e.g. for about ten minutes every month.
The auxiliary heating heats the air in the vehi-
cle interior to the set temperature without
using the heat of the running engine. The aux-
iliary heating is operated directly using the
vehicle's fuel. For this reason, the tank con-
tent must be at least at reserve fuel level to
ensure that the auxiliary heating functions.
The auxiliary heating/ventilation automati-
cally adjusts to changes in temperature and
weather conditions. For this reason, the aux-
iliary heating could switch from ventilation
mode to heating mode or from heating mode
to ventilation mode.
The auxiliary heating switches off automati-
cally after 50 minutes. This time limit can be
altered. To do this, visit aqualified specialist
workshop, e.g. aMercedes-BenzS ervice
Centre. Operating thec
limatecontrol system
137Climatecontrol Z

G
WARNING
Never leave the vehicl ewhen it is held by hill
start assist. After approximatel yone second,
hills tart assist willnol onger brake yourv ehi-
cle and it could roll away.
X Take your foot off the brake pedal.
i Oncey ou have taken your foot off the
brake pedal, the vehicle is held for around
one second.
X Pull away.
Hill start assist will not function if:
R you are pulling away on alevel road or a
downhill gradient.
R on vehicles with automatic transmission,
the transmission is in position N.
R the parking brake is applied.
R ESP ®
is malfunctioning. ECO start/stop function
General notes The ECO start/stop function is only available
for the
E200 CGI BlueEFFICIENCY model with
manual transmission.
The ECO start/stop function switches the
engine off automatically in certain situations.
The engine start sautomatically when you pull
away again. The ECO start/stop function
thereby helps you to reduce the fuel con-
sumption and emissions of your vehicle. The ECO start/stop function is activated each
time the engine is switched on. The system is operational when ECO symbol
:is shown in
the multifunction display.
! Always switch the ignition off and take the
key with you when leaving the vehicle.
Automatic engine switch-off The ECO start/stop function switches off the
engine automatically at low speeds if you:
R
apply the brake and bring the vehicle to a
standstill
R operate the clutc hpedal R
engage neutral N(follow gearshift instruc-
tion ;to engage neutral N,ifnecessary)
R release the clutc hpedal
The engine is only switched off if:
R the outside temperature is within the range
that is suitable for the system.
R the engine is at normal operatin gtemper-
ature.
R the set temperature 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 vehicle is not being steered.
R the fron tdoor is closed and the seat belt is
fastened.
i During an automatic engine switch-off, air
conditioning is reduced. If full air condition-
ing is required, the ECO start/stop function 150
DrivingDriving and parking

can be switched off with the ECO button
(Y page 151).
Automatic engine start If the engine ha
sbeens witched off by the
ECO start/stop function ,itrestart sautomat-
ically if you:
R depress th eclutch pedal
R depress th eaccelerator pedal
The engine is started automatically if:
R theE CO start/stop function is deactivated
by pressin gthe ECO button.
R thev ehicle start storoll.
R theb rak esystem requires this.
R thes ystem detect smoistur eont he wind-
screen when the air-conditioning system is
switched on.
R the battery's charge status is too low.
R the driver's seat belt is removed or the driv-
er's door is opened.
R you steer the vehicle.
! Only engage gear when the clutch pedal
is depressed.
Deactivating/activating the ECO start/
stop function :
To deactivate/activate the ECO start/
stop function
; Indicator lamp
If indicator lamp ;is off, the ECO start/stop
function has been deactivated manually or as
the result of amalfunction. The engine will then not be switched off automatically when
the vehicle stops.
i
The ECO start/stop function is activated
each time the engine is switched on. Driving
151Driving and parking Z

Engine oil
! Vehicles with adiesel particle filter:
If the vehicle is mostly driven for short dis-
tances, it is possible that malfunctions may
occur during the automatic cleaning of the
diesel particle filter. This can lead to engine
damage. Therefore, if you frequently drive
short distances, make sure to drive on
motorways or countr yroads for 20 minutes
at least every 500 km. Brakes
Important safet ynotes G
WARNING
Do not change down for additional engine
brakin gonas lippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. G
WARNING
Make sure that other road users are not
endangered by your braking.
Downhill gradients On long and steep downhill gradients, espe-
cially if the vehicle is laden or towin gatrailer,
you must shift to alower gear in good tim eor,
on vehicles with automatic transmission,
select shift range 1,2or 3.
i This also applies if you have activated
cruise control, SPEEDTRONIC or DIS-
TRONIC PLUS.
This will use the brakin geffect of the engine,
so less brakin gwill be required to maintain
the speed. This relieves the load on the brake
syste mand prevent sthe brake sfrom over-
heatin gand wearing too quickly. Heavy and light loads G
WARNING
Never depress the brake pedal continuously
while the vehicle is in motion, e.g. never cause
the brake storub by applying constan tslight
pedal pressure. This causes the brak esystem
to overheat, increases the braking distance
and can lead to the brakes failing completely.
If the brakes have been subjected to aheavy
load, do not sto pthe vehicle immediately, but
drive on for ashor twhile. This allowst he air-
flow to cool the brakes more quickly.
If the brakes have been used only moderately,
you should occasionally test their effective-
ness. To do this, brake more firmly from a
higher speed. This improves the grip of the
brakes.
Wet road surface If driving in heavy rain for
aprolonged period
of time without braking, there may be a
delayed reaction from the brakes when brak-
ing for the first time. This may also occur after
the vehicle has been washed.
You have to depress the brake pedal more
firmly. Maintain agreater distance from the
vehicle in front.
After driving on awet road or having the vehi-
cle washed, brake firmly while paying atten-
tion to the traffic conditions. This will warm
up the brake discs, thereby drying them more
quickly and protecting them against corro-
sion.
Limited braking performance on salt
treated roads G
WARNING
The layerofs alt on thebrake discs and the
brake pads/linings may caus eadelay in the
brakin geffect, resultin ginasignificantly lon-
ger brakin gdistance, which could lead to an
accident.
To avoid this danger, you should: Driving tips
167Driving and parking
Z

sonous carbon monoxide (CO) may enter the
vehicle, resulting in loss of consciousness and
even death.
To assure sufficient fresh air ventilation, open
aw indow slightly on the side of the vehicle
not facing the wind.
At the onset of winter, have your vehicle win-
terproofed at aqualified specialist workshop,
e.g. at aMercedes-Benz Service Centre.
Observe the notes in the "Winter operation"
section (Y page 319).
Driving with summer tyres Observe the notes in the "Winter operation"
section (Y
page 319).
Slippery road surfaces G
WARNING
Do not shift down for additional engine brak-
ing on aslippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid.
You should drive particularlyc arefully on slip-
pery road surfaces. Avoid sudden accelera-
tion, steering and braking manoeuvres.
If the vehicle threatens to skid or cannot be
stopped when moving at low speed:
X Vehicles with manual transmission: engage
neutral.
X Vehicles with automatic transmission: shift
the transmission to position N.
X Try to bring the vehicle under control by
using corrective steering.
i For more information on driving with
snow chains, see (Y page 320). Driving systems
Cruise control
Important safety notes Cruise control maintains
aconstant road
speed for you. It brakes automaticallyino rder
to avoid exceeding the set speed. On long and
steep downhill gradients, especially if the
vehicle is laden or towing atrailer, you must
shift to alower gear in good time or select
shift range 1,2or 3on vehicles with auto-
matic transmission. By doing so, you will
make use of the braking effect of the engine,
which relieves the load on the brake system
and prevents the brakes from overheating
and wearing too quickly. G
WARNING
Do not change down for additional engine
braking on aslippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid.
Use cruise control only if road and traffic con-
ditions make it appropriate to maintain a
steady speed for aprolonged period. You can
store any road speed above 30 km/h. G
WARNING
Cruise control cannot take account of road
and traffic conditions.
Always pay attention to traffic conditions
even when cruise control is activated.
Cruise control is only an aid designed to assist
driving. You are responsible for the vehicle's
speed and for braking in good time. G
WARNING
Do not use cruise control
R in traffic conditions that do not allow you to
drive at aconstant speed (e.g. heavy traffic Driving systems
169Driving and parking
Z

On long and steep downhill gradients, espe-
cially if the vehicle is laden or towing atrailer,
you must select shift range 1,2or 3in good
time. By doing so, you will make use of the
braking effect of the engine, which relieves
the load on the brake system and prevents
the brakes from overheating and wearing too
quickly.
If as lower-moving vehicle is detected in front,
DISTRONIC PLUS causes your vehicle to
brake and maintain apreset distance to the
vehicle in front. G
WARNING
Do not change down for additional engine
braking on aslippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. G
WARNING
DISTRONIC PLUS is only an aid designed to
assist driving. The driver remains fully respon-
sible for the vehicle's distance from other
vehicles, the vehicle's speed and for braking
in good time.
DISTRONIC PLUS does not react in particular
to:
R pedestrians
R stationary obstacles on the road, e.g. stop-
ped or parked vehicles
R oncoming and crossing traffic
DISTRONIC PLUS may not detect narrow vehi-
cles driving in front,e .g. motorcycles, or vehi-
cle sd riving on adifferent line. Therefore,
always pa yattention to traffic conditions even
when DISTRONIC PLU Sisactivated. Other-
wise, yo umay fai ltorecognis edanger sin
time ,cause an accident and injure yourself
and others. G
WARNING
DISTRONIC PLU Scanno ttake account of road
and traffic conditions .IfDISTRONIC doe snot
recognise or no longer recognises the vehicle
in front,don ot activate DISTRONIC or, if it is
already active, deactivate it. This is especially
the case:
R before corners
R on filter lanes
R when changing to alane with faster moving
traffic
R in complex driving situations or where lanes
are diverted, e.g. at roadworks on amotor-
way
DISTRONIC PLUS otherwise maintains the
current speed set by you or accelerates up to
the set speed.
DISTRONIC PLUS cannot take account of
weather conditions. Deactivate, or do not
activate, DISTRONIC PLUS:
R if the roads are slippery, snow-covered or
icy. The wheels could lose their grip when
braking or accelerating. The vehicle could
start to skid.
R if the sensors are dirty or there is poor vis-
ibility, e.g. due to snow, rain or fog. Dis-
tancec ontrol may be impaired.
Always pay attention to traffic conditions
even when DISTRONIC PLUS is activated.
Otherwise, you may fail to recognise dangers
in time, cause an accident and injure yourself
and others.
! You must deactivate the radar sensor sys-
tem in certain countries and near radio
telescope facilities. You will find further
information under "Radar sensor system"
in the index.
The radar sensor system is automatically
deactivated near radio telescope facilities
(Y page 345).
If you want DISTRONIC PLUS to assist you,
the radar sensor system must be activated
(Y page 229) and operational. 172
Driving systemsDriving and parking

still detects typical indicators of fatigue or
increasing lapses in concentration, you will be
warned againa fter 15 minutes at the earliest.
ATTENTION ASSIST is reset whe nyou con-
tinue you rjourney and it startsa ssessing your
tiredness again 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 safety notes i
Speed Limit Assist is not operational in all
countries.
Speed Limit Assist shows you detected speed
limits in the multifunction display .Data from
th en avigation system is also used for this
purpose. The display appear sifatraffic sign
indicating aspee dlimit or th eend ofas peed
limit is detected. If Speed Limit Assist does
no td etec tany traffic signs, the speed limit
from the digital roa dmap is take nand shown
in the display.
Speed Limit Assist detects the traffic signs
with acamera at the top of the windscreen. :
Speed Limit Assist camera G
WARNING
Speed Limit Assist is only an aid and may
detect speed limit signs incorrectly or not at
all. The system may be impaired or may not func-
tion if:
R
there is poor visibility, e.g. due to snow,
rain, fog or spray.
R there is glare, 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 there are ambiguous traffic signs, for
instance near roadworks or on multi-lane
roads.
Traffic signs always have priority over the
Speed Limit Assist display. Speed Limit Assist
cannot detect road and traffic conditions. It is
not asubstitute for attentive driving.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourselfa nd others.
Information in the multifunctio ndisplay Example
:vehicles with automatic transmission
: Traffic sign indicatin gaspeed limit or the
end of aspeed limit
; Speed Limit Assist is available and the
warning function is switched on in the on-
board computer
= Unit sused in the traffic sign displayed Driving systems
195Driving and parking Z

the warning onl
yoccurs if the differenc ein
spee dislesst han1 2km/h.
The yellow indicator lamp goes out if reverse
gearise ngaged. Blind Spot Assist is then
deactivated.
The brightness of the indicator/warning
lamps is adjusted automaticallya ccording to
the ambient light. G
WARNING
Blind Spot Assist is not active at speeds below
30 km/h, and the indicator lamps in the exte-
rior mirrors are yellow. Vehicles in the moni-
toring range are then not indicated.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognise dangers in time, cause an accident
and injure yourselfa nd others.
Collisio nwarning
If av ehicl eisd etected in the monitoring range
of Blind Spo tAssist and you switch on the turn
signal, adoublew arning tone sounds. Red
warning lamp :flashes. If the turn signal
remains on, detected vehicles are indicated
by the flashing of red warning lamp :.There
are no further warning tones.
Switching on Blind Spot Assist
X Make sure that the radar sensor system
(Y page 229) and Blind Spot Assist
(Y page 224) are activated in the on-board
computer.
X Turn the key to position 2in the ignition
lock.
Warning lamps :light up red in the exte-
rior mirrors for approximately 1.5 seconds
and then turn yellow.
Trailer towing
If you attach atrailer, make sure you have
correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting. In this event, Blind Spot
Assist is deactivated. The indicator lamp in
the exterior mirrors lights up yellow, and the
Blind Spot Assist currently unavail‐ able See Owner's Manual message
appears in the multifunction display.
i You can deactivate the indicator lamps in
the exterior mirrors.
To do so, switch off Blind Spot Assist if:
R the key is in position 2in the ignition
lock.
R the engine is not running.
R the electrical connection to the trailer
has been established.
Lane Keeping Assist Important safety notes
Lane Keeping Assist monitors the area in
front of your vehicle by means of
acamera at
the top of the windscreen. Lane Keeping
Assist detectsl ane markings on the road and
warns you before you leave your lane unin-
tentionally.
If you have chosen the (Y page 225) function
in the on-board computer and select km as
the unit of measurement, Active Lane Keep-
ing Assist is active from speeds of 60 km/h.
If the displayu nit is selected, the assistance
range begins at 40 mph. G
WARNING
Lane Keeping Assist does not keep your vehi-
cle in its lane. It is only an aid and may detect
the lane markings on the road incorrectly or
not at all.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray.
R there is glare, e.g. from oncomingt raffic,
the sun, or reflection from other vehicles.
R the windscreen is dirty, misted up or cov-
ered, for instancebyas ticker, in the vicinity
of the camera
R several or no lane markings for asingle lane
are present. 198
Driving systemsDriving and parking

R
the lane markings ar eworna way, dark or
covered up ,e.g.byd irtors now.
R the distance to the vehicl einfront is too
small and the lane marking sthu sc anno tbe
detected.
R the lane markings on the road are unclear,
e.g. near roadworks.
R the lane markings chang equickly, e.g.
lanes branc hoff, cros sone another or
merge.
R the road is narro wand winding.
Lane Keeping Assist cannot detec troad and
traffic conditions. It is not asubstitute for
attentive driving .You are responsible for the
vehicle's speed, braking in good time, and
steering correctly. Always adapt your driving
style to suit the prevailing road and weather
conditions. Always pay attention to traffic
conditions and your surroundings. Otherwise,
you may fail to recognise dangers in time,
cause an accident and injure yourself and oth-
ers.
Aw arning may be given if afront wheel
passes over alane marking. It will warn you
by means of intermittentv ibration in the
steering wheel for up to 1.5 seconds.
Activating Lane Keeping Assist
X Symbol :appears in the multifunction
display. Active Driving Assistance package
General notes The Active Drivin
gAssistance package con-
sists of DISTRONIC PLUS (Y page 171), Active
Blind Spot Assist (Y page 199) and Active
Lane Keeping Assist (Y page 202).
Active Blind Spot Assist Important safety notes
Active Blind Spot Assist uses
aradar sensor
system to monitor the side areas of your vehi- cle that are behind the driver.
Awarning dis-
play in th eexteri or mirror sdraws your atten-
tio ntod etected vehicles in the monitored
area. If you then switch on the corresponding
turn signal to change lane, you will also
receive avisual and acoustic collision warn-
ing. If arisk of lateral collision is detected,
corrective braking may help you avoid acol-
lision. To support the course-correcting brake
application, Active Blind Spot Assist also uses
the forward-facin gradar sensor system.
Active Blind Spot Assist provides assistance
at speeds higher than about 30 km/h. G
WARNING
Active Blind Spot Assist is only an aid and may
detect vehicles/obstacles incorrectly or not
at all.
The system may be impaired or may not func-
tion if:
R there is poor visibility, e.g. due to snow,
rain, fog or spray.
R the rear and/or front sensors are dirty.
Active Blind Spot Assist may not detect nar-
row vehicles, such as motorcycles or bicycles,
or only detect them too late. It cannot detect
vehicles which are overtaken at asmall dis-
tancea nd then enter the blind spot area.
Active Blind Spot Assist cannot detect road
and traffic conditions. It is not asubstitute for
attentive driving. You are responsible for the
vehicle's speed, braking in good time, and
steering correctly. Always adapt your driving
style to suit the prevailing road and weather
conditions. Always pay attention to traffic
conditions and your surroundings. Otherwise,
you may fail to recognise dangers in time,
cause an accident and injure yourself and oth-
ers.
The radar sensor system is automatically
deactivated near radio telescope facilities
(Y page 345).
For Active Blind Spot Assist to assist you
when driving, the radar sensor system must
be activated (Y page 229) and operational. Driving systems
199Driving and parking Z

Display messages Possible causes/consequences and
M Solutions
J
Brake immediately Am
alfunction has occurred while th eHOLDf unction or DIS-
TRONIC PLU Sisactive.
or
Vehicles wit hmanual transmission: wit hthe HOLD function acti-
vated, you hav eeither:
R opened th edriver's doo rand released the sea tbelt or
R switched off the engin eor
R opened the bonnet
At one may also sound at regular intervals. The toneb ecomes
louder if you attempt to lock the vehicle.
You cannot start the engine.
X Paying attention to the traffic situation, immediately depress the
brake pedal firmly and hold until the display message disap-
pears.
X Prevent the vehicle from rolling away before you leave it
(Y page 301).
You can restart the engine. J
Check brake fluid
level G
Risk of accident
There is insufficient brake fluid in the brake fluid reservoir. In addi-
tion, the red Jwarning lamp in the instrument cluster lights
up and awarning tone sounds.
X Pullo ver and stop the vehicl esafel yass oon as possible,p aying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Apply the parking brake.
X Consult aqualified specialist workshop.
X Do not top up the brake fluid. This does not correct the error. #
Check brake wear The brake pads/linings have reache
dtheir wearl imit.
X Visit aqualified specialist workshop. PRE-SAFE
inoperative See
Owner's Man. G
Risk of injury
Important function sofPRE-SAFE ®
have failed .All other occupant
safet ysystems, e.g. airbags, remain available.
X Visit aqualified specialist workshop immediately. Display messages
235On-board computer and displays Z