Setting the centre air vents
...........124
Setting the side air vents ...............124
Alarm system
see ATA
Alertness Assistant
see ATTENTION ASSIST
Ambient lighting
Setting the brightness (on-board
computer) ...................................... 208
Setting the colou r(on-board com-
puter) ............................................ .208
AMGMenu (on-board computer) ....... 212
AMG RIDE CONTROL sports sus-
pension (CLS 63 AMG) ......................169
Anti-glare film .................................... 264
Anti-lock Brake System see ABS
Anti-Theft Alarm system
see ATA
Anti-theft system
ATA (Anti-Theft Alarm system) .........63
Immobiliser ...................................... 63
Interior motion sensor .....................64
Tow-away protection ........................ 64
Aquaplaning ....................................... 151
Ashtray ............................................... 257
Assistance menu (on-board com-
puter) ................................................. .203
ASSYST PLUS see ASSYST PLUS service interval
display
ASSYST PLUS service interval dis-
play ..................................................... 269
Displaying a service message (on-
board computer) ............................ 270
ATA (Anti-Theft Alarm system)
Activating/deactivating ...................63
Function .......................................... .63
Switching off the alarm ....................63
ATTENTIO NASSIST
Activating/deactivating (on-
board computer) ............................ 204
Display message ............................ 226
Function/notes ............................. 177
Audio menu (on-board computer) ....200
Automatic car wash ..........................271Automatic engine start
With ECO start/stop function ........133
Automatic engine switch-off
With ECO start/stop function ........132
Automatic transmission
DIRECT SELECT leve r..................... 136
Display message ............................ 234
Driving tips .................................... 138
Emergency running mode ..............142
Kickdow n....................................... 138
Malfunction ................................... .142
Progra mselecto rbutton ................ 138
Pulling away ................................... 131
Selector leve r................................ 136
Starting .......................................... 130
Auxiliary heating ............................... 119
Adjusting (on-board computer) ......210
Display message ............................ 236
Important safety information .........119
Auxiliary heating/ventilation ...........120
Display message ............................ 123
Remote control .............................. 120
Auxiliary ventilation ..........................119 B
Bag hook ............................................ 252
BAS (Brake Assist System) .................57
BAS PLUS (Brake Assist System
Plus) ...................................................... 57
Battery Changing (auxiliary heating
remote control) .............................. 121
Changing (key )................................. 71
Charging ........................................ 292
Checking (key )................................. 70
Disconnecting ................................ 292
Display message ............................ 225
Important safety guidelines (key )..... 70
Installatio nlocation ....................... 291
Jump-starting ................................. 294
Reconnecting ................................. 293
Removing/fitting ........................... 292
Safety notes .................................. 290
Belt
see Seat belt Index
5
X
Turn the key to position 0in the ignition
lock or remove it.
X To switch on: press theÌbutton.
The indicator lamp in the Ìbutton lights
up.
X To deactivate: press theÌbutton.
The indicator lamp in the Ìbutton goes
out.
i Residual heat 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
Risk of poisoning
Exhaust fumes are produced when the auxili-
ary heating is in operation. Inhaling these
exhaust fumes can be poisonous. You should
therefore switch off the auxiliary heating in
confined spaces without an extraction sys-
tem, e.g. a garage. G
Risk of fire
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 a longer
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 a qualified specialist
workshop, e.g. a Mercedes-Ben
zService
Centre.
You cannot use the auxiliary ventilation to
cool the vehicle interior to a temperature
lower than the outside temperature.
Before switching on X
Turn the key to position 2in the ignition
lock.
X Set the temperature.
The auxiliary heating/ventilation can be acti-
vated even when the climate control is being
controlled manually. Optimum comfort can
be attained when the system is set to auto-
matic mode. Set the temperature to 22 †.
The auxiliary heating/ventilation can be acti-
vated or deactivated using the remote control
or the button on the centre console.
The on-board computer can be used to spec-
ify up to three departure times, one of which
may be preselected (Y page 210). Operating the climate control system
119Climate control Z
Switching the auxiliary heating/venti-
lation on/off using the centre console
button The colours of the indicator lamps on the but-
ton have the following meanings:
Blue Auxiliary ventilation switched on
Red Auxiliary heating switched on
Yellow Departure time preselected
(Ypage 210)
Switching on auxiliary heating/ventila-
tion
X Press button :.
The red or blue indicator lamp in but-
ton :lights up.
Switching off auxiliary heating/ventila-
tion
X Press button :.
The red or blue indicator lamp in but-
ton :goes out.
Switching the auxiliary heating/venti-
lation on/off using the remote control Your vehicle comes with one remote control.
You may use two additional remote controls
for your vehicle. For further information, con-
sult a qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre. The remote control has a maximum range of
approximately 300 metres. This range is
reduced by:
R
sources of radio interference
R solid objects between the remote control
and the vehicle
R the remote control being in an unfavoura-
ble position in relation to the vehicle
R transmitting from an enclosed space
i The optimum range can be achieved if you
hold the remote control vertically, pointing
upwards when you press one of the but-
tons.
i Abattery symbol appears in the display
when the batteries in the remote control
are low. Replace the remot econtrol bat-
teries (Y page 121). Auxiliary heating remote control
:
Display
; . To check the status/set the depar-
ture time
= ^ To switch off the auxiliary heating/
ventilation
? u To switch on the auxiliary heating/
ventilation
A , To check the status/set the depar-
ture time
Switching on auxiliary heating/ventila-
tion
X Press the ubutton.
ON is shown in the remote control display.120
Operating the climate control systemClimate control
Switching off auxiliary heating/ventila-
tion
X
Press the ^button.
OFF is shown in the remote control display.
Checking the status of the auxiliary heat-
ing/ventilation
X Press the ,or. button.
The following messages can appearint he
display: Display Meaning
The auxiliary heating/
ventilation is switched
off.
The auxiliary ventilation
is switched on. The num-
ber in the display shows
the remaining time (in
minutes) for the auxiliary
ventilation. The auxiliary heating is
switched on. The number
in the display shows the
remaining time (in
minutes) for the auxiliary
heating. Ad
eparture time has
been activated. The
departure time appears
in the display. Ad
eparture time has
been activated. The aux-
iliary ventilation is cur-
rently selected. The
departure time appears
in the display. Ad
eparture time has
been activated. The aux-
iliary heating is currently
selected. The departure
time appears in the dis-
play. Setting a departure time
X
Press the ,or. button repeatedly
until the time to be changed appears in the
display.
X Press the uand^ buttons simulta-
neously.
The Îsymbol in the remote control dis-
play flashes.
X Press the ,or. button to set the
desired departure time.
i The longer you press the ,or.
button, the faster the time changes.
X Press the uand^ buttons simulta-
neously.
The new departure time is stored.
Activating a set departure time
X Press the ,or. button repeatedly
until the desired departure time appears in
the display.
X Press the ubutton.
The Ísymbol and the departure time
appear in the display.
Deactivating a set departure time
X Press the ,or. button.
The status of the auxiliary heating is shown
in the display.
X Press the .button.
The first departure time stored appears in
the display.
X Press the ^button.
The display message OFF appears in the
display.
Replacing the remote control battery One 6 V pin battery, type 2CR11108 is
required.Operating the climate control system
121Climate control Z
X
Prise apart the side arms of battery
cover ;and pull off battery cover ;.
X Remove old battery :.
X Inser tthe new battery. Observe the polarity
signs on the back of the remote control
when doing so.
X Slide battery cover ;back onto the
remote control.
X Use the remote control to check the vehi-
cle's auxiliary heating functions. 122
Operating the climate control systemClimate control
Problems with auxiliary heating/ventilation
Display messages Possible causes/consequences and
M Solutions
FAIL The starter battery is not charged sufficiently or the system is
faulty.
X
Charge the starter battery.
X Make another attempt to switch on the auxiliary heating using
the remote control.
X Have the auxiliary heating checked at a qualified specialist
workshop. $
FAIL The signal transmission between the transmitter and the vehicle
is faulty.
X Change your position in relation to the vehicle, moving closer if
necessary.
X Make another attempt to switch the auxiliary heating on or off
using the remote control. ©
FAIL There is not enough fuel in the fuel tank, or the auxiliary heating
is faulty.
X
Refuel at the nearest filling station.
X Make another attempt to switch on the auxiliary heating using
the remote control.
X Have the auxiliary heating checked at a qualified specialist
workshop. Adjusting the air vents
Important safety notes
G
Risk of injury
Very hot or very cold air can flow from the air
vents. This could cause burns or frostbite to
bare skin in the immediate vicinity of the
vents. Keep bare skin away from these air
outlets. If necessary, direct the airflow away
to a different area of the vehicle interior. In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
R
keep the air inlet between the windscreen
and the bonnet free of blockages, such as
ice, snow or leaves
R never cover the ventsora ir inlet and outlet
grilles in the vehicle interior
i For virtually draught-free ventilation,
adjust the sliders of the air vents to the
centre position. Adjusting the air vents
123Climate control Z
Activating/deactivating the rada
rsensor
system
i You must deactivate the radar sensor sys-
tem in certain countries and near radio
telescope facilities. Further information
(Y page 327).
Vehicles with a navigation system: the radar
sensor system is deactivated automatically if
you are close to radio telescope facilities.
The following systems are switched off when
the radar sensor system is deactivated:
R DISTRONIC PLUS (Y page 154)
R BAS PLUS (Y page 57)
R PRE-SAFE ®
Brake (Y page 61)
R Blind Spo tAssist (Y page 183)
R Active Blind Spot Assist (Y page 186)
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 the 9or: button to select
Radar sensor (See Owner's Man.): .
You will see the selected setting: on or
off .
X Press the abutton to save the setting.
Heating menu Auxiliary heating departure time
This function is only available on vehicles with
auxiliary heating (Y
page 119).
In the Heating submenu, you can select a
stored departure time or change a departure
time.
The auxiliary heating timer function calcu-
lates the switch-on time according to the out-
side temperature so that the vehicle is pre-
heated by the departure time. When the
departure time is reached, the auxiliary heat-
ing continues to heat for a further five
minutes and then switches off. The auxiliary
heating adopts the THERMATIC or THERMA-
TRONIC temperature setting. You can switch off the auxiliary heating by
using the remote control or the auxiliary heat-
ing button on the centre console. G
Risk of poisoning
Exhaust fumes are produced when the auxili-
ary heating is in operation. Inhaling these
exhaust fumes can be poisonous. You should
therefore switch off the auxiliary heating in
confined spaces without an extraction sys-
tem, e.g. a garage. G
Risk of fire
When operating the auxiliary heating parts of
the vehicle can get very hot. Make sure that
the exhaust system does not under any cir-
cumstances come into contact with easily
ignitable material such as dry grass or fuels.
The material could otherwise ignite and set
the vehicle alight. Choose your parking spot
accordingly.
Operating the auxiliary heating is thus pro-
hibited at filling stations or when your vehicle
is being refuelled.Y ou must therefore switch
off the auxiliary heating at filling stations.
! 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 a longer
distance.
i Switch the auxiliary heating on regularly
once a month for about ten minutes.
Selecting the departure time or deactivat-
ing a selected departure time
X Press the =or; button on the steer-
ing wheel to select the Settings menu.
X Press the :or9 button to select the
Heating submenu.
X Press the abutton to confirm.
You will see the selected setting.
X Press the abutton to confirm. 210
Menus and submenusOn-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