ignition MERCEDES-BENZ CLS COUPE 2008 Workshop Manual

Air conditioning
166
i
The auxiliary heating/ventilation is auto-
matically deactivated after about 30
minutes, or when:
R the ignition is switched on
R the battery voltage drops Auxiliary heating/ventilation*
G
Risk of poisoning
Exhaust fumes are produced when the aux-
iliary 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 system, 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 stations
or when your vehicle is being refuelled. You
must therefore switch off the auxiliary heat-
ing at filling stations.
The auxiliary heating heats the air in the vehi-
cle interior to a temperature between 20 °C and 24 °C without using the heat of the run-
ning engine. The auxiliary heating is operated
using fuel directly from the vehicle's fuel tank.
For this reason, the tank content 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 automatically switch over
from ventilation mode to heating mode or
from heating mode to ventilation mode.
You cannot use the auxiliary ventilation to
cool the vehicle interior to a temperature
lower than the outside temperature.
Before activating
X
Set the temperature to a value between
20 † and 24 †.
The auxiliary heating/ventilation can be acti-
vated even when the air conditioning is being
controlled manually. Optimum comfort can
be attained when the system is set to auto-
matic mode. Set the desired temperature
within this range. If a higher temperature is
set, the vehicle is heated to 24 †. If a lower
temperature is set, the vehicle is heated to
20 †. Activating or deactivating the auxiliary
heating/ventilation The auxiliary heating/ventilation can be acti-
vated or deactivated via 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 128).
Button on the centre console 1
Button for auxiliary heating/ventilation
The indicator lamps in the button may light up
in blue, red or yellow.
R Blue: auxiliary ventilation activated
R Red: auxiliary heating activated
R Yellow: departure time preselected Controls
* optional
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Sliding sunroof
1701
To open
2 To close/lower
3 To raise
X Make sure that the key is in position 2 in
the ignition lock.
Opening
X To open manually: press the switch in the
direction of arrow 1 and hold it until the
sliding/tilting sunroof and the cover are in
the desired position.
X To open fully: press the switch briefly
beyond the pressure point in the direction
of arrow 1 and release it.
X To stop: push or pull the switch in any
direction. Closing
X
To close manually: pull the switch in the
direction of arrow 2 and hold it until the
sliding/tilting sunroof is in the desired posi-
tion.
X To close fully: pull the switch briefly
beyond the pressure point in the direction
of arrow 2 and release it.
X To stop: push or pull the switch in any
direction.
X Close the cover manually if necessary
(Y page 171).
Closing with increased force and without
the anti-entrapment feature
G Risk of injury
Make sure that nobody can become trap-
ped and be seriously or fatally injured as
you close the sliding/tilting sunroof with
increased force or without the anti-entrap-
ment feature.
If the sliding/tilting sunroof locks up during
closing:
X Immediately after it locks up, pull the
switch again to the pressure point in the direction of arrow 2 until the sliding/tilt-
ing sunroof is closed.
The sliding/tilting sunroof is closed with
more force.
If the sliding/tilting sunroof locks up during
closing again:
X Immediately after it locks up, pull the
switch again to the pressure point in the
direction of arrow 2 until the sliding/tilt-
ing sunroof is closed.
The sliding/tilting sunroof is closed without
the anti-entrapment feature.
RaisingThe sliding/tilting sunroof can be raised at
the rear for ventilation.
X To raise manually: press the switch in the
direction of arrow 3 and hold it until the
sliding/tilting sunroof is in the desired posi-
tion.
X To raise fully: briefly press the switch
beyond the pressure point in the direction
of arrow 3 and release it.
X To stop: push or pull the switch in any
direction.
Controls
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Sliding sunroof
171
Lowering and closing X
To lower manually: pull the switch in the
direction of arrow 2 and hold it until the
sliding/tilting
sunroof is in the desired posi-
tion.
X To lower fully: pull the switch briefly
beyond the pressure point in the direction
of arrow 2 and release it.
X To stop: push or pull the switch in any
direction.
Rain closing feature The sliding/tilting sunroof closes automati-
cally:
R
if it starts to rain
R at extreme outside temperatures
R after 12 hours
R if

there is a malfunction in the power supply
The rear of the sliding/tilting sunroof is then
raised in order to ventilate the interior of the
vehicle.
i The sliding/tilting sunroof is opened
slightly again if it is obstructed while being
closed by the rain closing feature. The rain
closing feature is then deactivated. i
The
sliding/tilting sunroof does not close
if:
R it is raised at the rear
R it is blocked
R no rain is falling on the windscreen (e.g.
because the vehicle is under a bridge or
in a carport)
Opening and closing the cover The cover functions as a sunblind. When you
open the sliding/tilting sunroof, the cover
moves back with it.
When the sliding/tilting sunroof is closed or
raised at the rear, you can open or close the
cover manually.
Resetting the sliding/tilting sunroof
Reset the sliding/tilting sunroof if it does not
move smoothly, or if the battery was discon-
nected or flat:
X
Remove the fuse for the sliding/tilting sun-
roof in the main fuse box (Y page 296).
X Reinsert the fuse.
X Make sure that the key is in position 2 in
the ignition lock. X
Press the switch in the direction of
arrow 3
and hold it until the sliding/tilting
sunroof is fully raised at the rear.
X Keep the switch pressed for an additional
second.
X Make sure that the sliding/tilting sunroof
can be opened or closed fully again
(Y page 170).
X If this is not the case, consult a qualified
specialist workshop. Controls
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Features
182
X
Make sure that the key is in position 2 in
the ignition lock.
X Press lightly on the marking at the bottom
of the cover.
The ashtray opens.
X Press in cigarette lighter 1.
Cigarette lighter 1 will pop out automati-
cally when the heating element is red-hot. 12V socket
The socket can be used for accessories with
a maximum power consumption of 180 watts.
X Make sure that the key is in position 2 in
the ignition lock. Socket in the cockpit A socket is fitted in the centre console on
vehicles with the non-smoker's package.
1
Cover
2 Socket
3 Insert
X Press lightly on the marking at the bottom
of cover 1.
The stowage compartment opens.
X Fold cover of socket 2 out to the right. Socket in the rear passenger compart-
ment The rear socket is located in the stowage
compartment of the centre console.
1
Socket
2 Cover
X Slide cover 2 to the rear.
X Fold cover of socket 1 upwards.Controls
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Features
184Example illustration
1
To engage the mobile phone
2 Connector contact
3 Mobile phone bracket
X Slide the lower end of the mobile phone
into connector contact 2 in mobile phone
bracket 3.
X Push the top part of the mobile phone in
the direction of arrow 1 until it engages in
mobile phone bracket 3.
The mobile phone is connected to the
hands-free system and to the multi-func-
tion steering wheel.
The battery is charged depending on the
charge status and the position of the key in
the ignition lock. The charging process is
shown in the mobile phone display. i
The system reads the phone book stored
on the SIM card and in the mobile phone
memory. If the same entry is stored in both
of the phone books, both of these entries
will be shown in the multi-function display.
You can make a call using the s and
t buttons on the multi-function steering
wheel. You can control other mobile phone
functions via the on-board computer
(Y page 130).
i When you remove the key from the igni-
tion lock, the mobile phone remains
switched on for approximately ten minutes
(run-on time). If you make a call during this
time, the mobile phone will be switched off
approximately ten minutes after you have
ended the call.
Run-on time:
You can change the run-on time by making
an additional phone book entry on the SIM
card. For the name, enter "Idletime" and for
the number, enter a figure between "1" and
"30" (minutes). If you have not entered a
number or have entered a different num-
ber, the run-on time of ten minutes will still
apply. For information on how to create a phone
book entry, refer to the mobile phone oper-
ating instructions.
Own number sending:
The hands-free system does not recognise
whether own number sending is enabled or
disabled in the mobile phone. The phone
number is therefore always sent by default.
By creating an additional phone book entry
on the SIM card, you can switch the own
number sending function on and off. For
the name, enter "CALLID" and for the num-
ber, enter a "0" or a "1". Entering "0" will
prevent the telephone number from being
sent; entering "1" will allow it to be sent.
For information on how to create a phone
book entry, refer to the mobile phone oper-
ating instructions.
Controls
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Features
186 Garage door opener*
The remote control integrated in the rear-view
mirror allows you to operate up to three dif-
ferent door and gate systems.
i The garage door opener is only available
for certain countries. Observe the legal
requirements in all countries concerned.
The HomeLink ®
garage door opener is
compatible with most European garage and
gate opener drives. More information on
HomeLink ®
and/or compatible products is
available from:
R any Mercedes-Benz Service Centre
R the HomeLink ®
hotline
(0) 08000 466 354 65 (free of charge) or
+49 (0) 6839 907-277 (at a charge)
R the Internet: www.homelink.comRemote control in the rear-view mirror
1 Indicator lamp
2 Transmitter button
3 Transmitter button
4 Transmitter button
G Risk of accident
Only press the transmitter button on the
integrated remote control if there are no
persons or objects present within the
sweep of the garage door. Persons could
otherwise be injured as the door moves.
Programming the remote control
i You will achieve the best results by insert-
ing new batteries in the garage door's
remote control before programming it. X
Erase the memory of the integrated remote
control ( Y page 187)before programming
it for the first time.
X Turn the key to position 2 in the ignition
lock.
X Press and hold one of transmitter buttons
2 to 4 on the integrated remote control.
Indicator lamp 1 starts to flash after a
short while. It flashes about once a second.
i Indicator lamp 1 flashes immediately
the first time the transmitter button is pro-
grammed. If this transmitter button has
already been programmed, indicator
lamp 1 will only start flashing at a rate of
once a second after 20 seconds have
elapsed.
X Keep the transmitter buttons depressed.
X Point the garage door's remote control with
the transmitter towards the left-hand side
of the rear-view mirror from a distance of 5
to 20 cm.
i The distance between the garage door's
remote control and the integrated garage
door opener depends on the system of the
garage door drive. You might require sev-
eral attempts. You should test every posi-
Controls
* optional
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Features
187
tion for at least 20 seconds before trying
another position.
X Keep the transmitter button on the garage
door's
remote control depressed until indi-
cator lamp 1 starts to flash rapidly.
The programming was successful if indica-
tor lamp 1 flashes rapidly.
X Release the transmitter buttons on the
garage

door's remote control and the inte-
grated remote control.
If indicator lamp 1 goes out after approxi-
mately 20 seconds and did not flash rapidly
before this:
X Release the transmitter buttons on the
integrated and portable remote controls.
X Repeat the programming procedure. At the
same time change the distance between
the garage door's remote control and the
transmitter

buttons in the rear-view mirror.
i If the garage door system works with a
rolling code, after programming you must
synchronise the remote control integrated
in

the rear-view mirror with the garage door
system receiver.
You will find further information in the
garage door opening system's operating instructions, e.g. the sections on “Synchro-
nising the transmitter” or “Registering a
new

transmitter”. You can also call the hot-
line mentioned above.
Opening or closing the garage door Once programmed, the integrated remote
control

will assume the function of the garage
door system's remote control. Please read
the operating instructions for the garage door
system.
X Turn the key to position 2 in the ignition
lock.
X Press the transmitter button on the rear-
view mirror that you have programmed to
operate the garage door.
Garage door system with fixed code: indi-
cator lamp 1 lights up continuously.
Garage

door system with rolling code: indi-
cator lamp 1 flashes briefly and then lights
up for approximately two seconds. This is
repeated for up to 20 seconds.
i The transmitter will transmit a signal for
as long as the transmitter button is being
pressed. The transmission will be halted
after a maximum of 20 seconds and indi- cator lamp 1 will flash. Press the trans-
mitter button again if necessary.
Clearing the remote control memory X
Turn the key to position 2 in the ignition
lock.
X Press and hold transmitter buttons 2 and
4
for approximately 20 seconds until indi-
cator lamp 1 flashes rapidly.
The memory is cleared.
i You
should clear the remote control mem-
ory before selling the vehicle. Floormat* on the driver's side
G
Risk of accident
Make sure that there is sufficient clearance
around the pedals when floormats are
used, and that the floormats are properly
secured.
The

floormats must be secured at all times
using retainers and studs.
Before you drive off, make sure that the
floormats are secure and rectify if neces-
sary. A floormat which is not properly Controls
* optional
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Engine compartment
193
R
Vegetable oil
R Petrol
R Petroleum
R Kerosene
Do
not add such fuels to diesel fuel and do
not use any special additives (exception:
flow improvers – see "Low outside temper-
atures").
Damage caused by the use of unapproved
fuels or additives is not covered by the war-
ranty.
Low outside temperatures The flow properties of diesel may be insuffi-
cient at low ambient temperatures.
To prevent operating problems, diesel fuel
with improved cold flow qualities is available
during the winter months. Your vehicle must
be

refuelled with this winter diesel at temper-
atures of -5 °C or below.
You can use this winter diesel at tempera-
tures down to about -20 °C without problems.
If only summer diesel fuel or less cold-resist-
ant winter diesel fuel (e.g. in Mediterranean
regions) is available, you should add an
amount of flow improver to the fuel corre-
sponding to the outside temperature. Mix the additive with the diesel in good time,
before the flow properties of the diesel
become

insufficient. Otherwise, malfunctions
can only be rectified by heating the entire fuel
system, e.g. by parking the vehicle in a heated
garage. G
Risk of fire
Do not use petrol to refuel vehicles with a
diesel
engine. Never mix diesel with petrol.
This would damage the fuel system and
engine and could result in a vehicle fire.
Flow improver
The effectiveness of a flow improver is not
guaranteed with every fuel. Observe the infor-
mation provided by the manufacturer when
using a flow improver. Only use flow improv-
ers that have been tested and approved by
Mercedes-Benz. Information about flow
improvers that have been tested and
approved by Mercedes-Benz can be obtained
from any Mercedes-Benz Service Centre. Engine compartment
Bonnet
G
Risk of accident
Do not pull the release lever while the vehi-
cle is in motion. The bonnet could other-
wise open.
Opening G
Risk of injury
There is a risk of injury if the bonnet is open,
even if the engine is not running.
Some engine components can become
very hot.
To

avoid the risk of burns, only touch those
components described in the Owner’s Man-
ual and observe the relevant safety notes. G
Risk of injury
The radiator fan between the radiator and
the engine can start automatically, even if
the

key has been removed from the ignition
lock. For this reason you must not reach
into the turning area of the fan. You could
otherwise sustain an injury.
Vehicles with a petrol engine: Operation
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Engine compartment
194 The electronic ignition system uses high
voltage. For this reason you must never
touch components of the ignition system
(ignition coil, ignition cable, spark plug con-
nector or test socket) when:
R
the engine is running
R the engine is being started
R the ignition is switched on and the engine
is being cranked by hand
Vehicles with a diesel engine:
The electronic injection control uses high
voltage. Therefore, never touch fuel injec-
tion system components when:
R the engine is running
R the engine is being started
R the ignition is switched on
X Make sure that the windscreen wipers are
switched off. G
Risk of injury
The windscreen wipers and wiper rods
could be set in motion.
When the bonnet is open, you or others
could be injured by the wiper rods. Make sure that the windscreen wipers are
switched off and that the key has been
pulled out of the ignition lock before open-
ing the bonnet.
The bonnet release lever is located in the
driver's footwell.1 Bonnet release lever
X Pull release lever 1.
The bonnet is released.
! Make sure that the windscreen wipers
are not folded away from the windscreen.
You could otherwise damage the wind-
screen wipers or the bonnet. The handle for opening the bonnet is located
above the radiator grille.
2
Bonnet catch handle
X Reach into the gap, pull bonnet catch han-
dle 2 up and lift the bonnet.
Closing
G Risk of injury
Make sure that nobody can become trap-
ped as you close the bonnet.
X Lower the bonnet and let it fall from a
height of approximately 20 cm. The bonnet
engages into place.
Operation
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Tyres and wheels
202tyres is set correctly for the operating con-
ditions concerned.
X Also observe the notes in the section on
tyre pressures ( Y page 200). G
Risk of accident
The tyre pressure loss warning system can
only give reliable warnings if you have set
the correct tyre pressure.
If an incorrect tyre pressure is set, these
incorrect values will be monitored.
A tyre with insufficient pressure results in
an instability of the vehicle when driving,
thus increasing the risk of an accident.
X Make sure that the key is in position 2 in
the ignition lock.
The standard display appears in the multi-
function display ( Y page 115).
X Press k or j to select the tyre pres-
sure function:
Run Flat Indicator active
Menu: R-Button æ
X Press the reset button on the left of the
instrument cluster.
The following message appears in the
multi-function display:
Restart Run Flat Indicator? Yes Cancel
If you wish to confirm the restart:
X Press the æ button.
The following message appears in the
multi-function display:
Run Flat Indicator restarted
After a teach-in period, the tyre pressure
loss warning system will monitor the set
tyre pressures of all four tyres.
If you wish to cancel the restart:
X Press the ç button.
or
X Wait until the message
Restart Run Flat Indicator?
Yes Cancel disappears.
The tyre pressure values stored at the last
restart will continue to be monitored. Checking the tyre pressure electroni-
cally*
The tyre pressure monitor only functions if
the correct wheel electronics are fitted to all
wheels.

These monitor the pressure in all four
tyres, which you have set when restarting the
tyre pressure monitor. The monitor warns you
when the pressure drops in one or more of
the tyres. G
Risk of accident
The tyre pressure monitor does not warn
you
of an incorrectly set tyre pressure. The
table on the inside of the fuel filler flap will
help you decide whether the tyre pressures
should be corrected.
The tyre pressure monitor is not able to
warn you of a sudden loss of pressure, e.g.
if the tyre is penetrated by a foreign object.
In the event of a sudden loss of pressure,
bring the vehicle to a halt by braking care-
fully. Do not make any sudden steering
movements when doing so.
i The operation of the tyre pressure moni-
tor can be affected by interference from
radio transmitting equipment (e.g. radio
headphones, two-way radios) that may be
being operated in or near the vehicle. Operation
* optional
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