tivate
dusing the on-board computer
(Y page 228).
X To unloc kcentrally: pressthe % but-
ton.
If you do not open th evehicle within approx-
imately 40 seconds of unlocking:
R the vehicle is locked again.
R the anti-thef tsystem is primed again.
X To lock centrally: press the&button. KEYLESS-GO
You can start ,loc koru nlock the vehicl eusing
KEYLESS-GO .Todothis, you only need carry
the key with you. When you touch the surface
of the sensors on the vehicle's outside door
handles, KEYLESS-GO establishes aradio
connection between the vehicle and the key.
When the engine is started and whilst you are
driving, KEYLESS-GO also checksw hether a
valid key is in the vehicle by periodically
establishing radio contact.
When lockin gorunlockingw ith KEYLESS-GO,
the distanc ebetween the key and the door
handle you wish to lock or unloc kmust not
be greate rtha n1m. X
To unlock th evehicle: touch th einner
surface of th edoor handle.
X To lock th evehicle: touch sensor sur-
face :.
X Convenience closin gfeature: touch
recessed sensor surface ;for an exten-
ded period (Y page 84). If you pull on th
ehandle of th eboot lid, only
th eb oot of th evehicl eisu nlocked.
If th evehicl ehas been parked for alon gtime,
th es ensor surface sare deactivated automat-
ically. Pull th edoor handle to unlock th edoor
and tur nontheignition once to activat ethe
sensor surface sagain. Changing th
esettings of th elocking
system
You can chang ethe setting of th elocking
system in suc haway that only th edriver's
door and th efuel fille rflap are unlocked. This
is useful if you frequently travel on your own.
X To chang ethe setting: press and hold
down the %and& buttons simulta-
neously for approximately six seconds until
the battery chec klamp (Y page 74)
flashes twice.
i If the settin gofthe locking system is
changed within the signal rang eofthe vehi-
cle, pressing the &or% button locks
or unlocks the vehicle.
The key now functions as follows:
X To unlock th edriver' sdoor: press the
% button once.
X To unlock centrally: press the%but-
ton twice.
X To lock centrally: press the&button.
The KEYLESS-GO function is changed as fol-
lows:
X To unlock th edriver' sdoor: touchthe
inner surface of the door handle on the
driver's door.
X To unlock centrally: touchthe inner sur-
face of the front-passenger door handle.
X To lock centrally: touchthe outer sensor
surface on one of the door handles. Key
73Opening and closing Z
Restoring the factory settings
X Press the %and& buttons simulta-
neously for approximately six seconds until
the battery check lamp flashe stwice. Emergenc
ykey element
General notes If th
evehicle can no longer be locked or
unlocked with th ekey, use th eemergency
key element.
If you use th eemergency key element to
unlock and open th edriver' sdoor or th eboot
lid, th eanti-thef talarm system will be trig-
gered (Y page 68).
There are several ways to tur noff the alarm:
X To turn the alarm off with the key: press
the % or& button on the key.
or
X Insert the key into the ignition lock.
or
X To deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The key must be in the vehicle.
or
X Lock or unlock the vehicle using KEYLESS-
GO. The key must be outside the vehicle.
Removing the emergency key element X
Pus hrelease catch :in the direction of
the arrow and at the same time, remove
emergency key element ;from the key. Keyb
attery
Important safety notes It is advisable to have batteries replaced at a
qualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre.
G
WARNING
Batterie sare toxic and contain caustic sub-
stances. For this reason, keep batteries out of
the reach of children.
If ab attery has been swallowed ,visi tad octor
immediately. H
Environmental note Batteries contain pollutants.
It is against the law to dis-
pose of them with the house-
hold rubbish. They must be
collected separately and
recycled in an environmen-
tally responsible manner.
Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to
aqualified spe-
cialist workshop, e.g. a
Mercedes-Benz Service
Centre, or to aspecial col-
lection point for old batter-
ies.
Checking the battery 74
KeyOpening and closing
X
Press the &or% button.
The key batter yisworking properly if bat-
tery check lamp :lights up briefly.
If batter ycheck lamp :does not light up
briefly during the test,t he key batteryisdis-
charged.
X Changing the batter y(Ypage 75)
i If the key batter yischecked within the
signal reception range of the vehicle, press-
ing the &or% button locks or
unlock sthe vehicle.
Changing the battery You require
aCR20253Vc ell battery.
X Take the emergenc ykey element out of the
key (Y page 74). X
Press emergenc ykey element ;into the
opening in the key in the direction of the
arrow until batter ytray cover :opens.
When doing so, do not hold cover :shut.
X Remove batter ytray cover :. X
Repeatedly tap the key against your palm
until battery =falls out.
X Inser tthe new battery with the positive ter-
minal facing upwards. Use alint-free cloth
to do so.
X Make sure that the surface of the battery is
free from lint, grease and all other forms of
contamination.
X Insert the front tabs of battery tray
cover :and then press to close it.
X Insert the emergency key element into the
key.
X Check the function of all key buttons on the
vehicle. Key
75Opening and closing Z
Switching the seat heating on/off
Switching on/off G
WARNING
Repeatedly settingt he seat heating to level
3 may result in excessive seat temperatures.
The health of passengers that have limited
temperature sensitivity or alimited ability to
react to excessively high temperatures may
be affected or they may even suffer burn-like
injuries. Therefore, do not use seat heating
level 3repeatedly.
The three red indicator lamps in the button
indicate the heating level you have selected.
i If the battery voltage is too low, the seat
heating may switch off. Driver's and front-passenger seat
The system automatically switches down
from level 3to level 2after approximately
eight minutes.
The system automatically switches down
from level 2to level 1after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: press button:repeatedly
until the desired heating level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out. Problems with the seat heating The seat heating has switched off prema-
turely or cannot be switched on. The vehicle's
electrical system voltage is too low because
too many electrical consumers are switched
on.
X
Switch off electrical consumers which you
do not need, such as the rear window heat-
ing or interior lighting. Switching the seat ventilation on/off
Switching on/off The three blue indicator lamps in the buttons
indicate the ventilation level you have selec-
ted.
i
If the battery voltage is too low, the seat
ventilation may switch off. X
Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: press button:repeatedly
until the desired ventilation level is set.
i Coupé: you can open the side windows
and the panorama sliding sunroof using the
"Convenience opening" feature
(Y page 83). The seat ventilation of the
driver's seat automatically switches to the
highest level.
Cabriolet: you can open the soft top and the
rear side windows with the key
(Y page 87). The seat ventilation of the 106
SeatsSeats, steering wheela
nd mirrors
the steering whee
land thereb ycause an acci-
dent.
However, the steerability of the vehicl eisnot
affected. Adjusting the steering whee
lman-
ually :
Release lever
; To adjust the steering wheel height
= To adjust the steering wheel position
(fore-and-aft adjustment)
X Pus hrelease lever :dow ncompletely.
The steerin gcolumn is unlocked.
X Adjust the steerin gwheel to the desired
position.
X Push release lever :up completely.
The steerin gcolumn is locked.
X Check if the steerin gcolumn is locked.
When doing so, try to push the steering
wheel up or down or try to move it in the
fore-and-aft direction. Adjusting the steering wheel electri-
cally
:
To adjust the steerin gwheel height
; To adjust the steerin gwheel position
(fore-and-aft adjustment)
i Related topics:
R EASY-ENTRY/EXIT feature
(Y page 108)
R Storing settings (Y page 112) EASY-ENTRY/EXIT feature
Important safety notes The EASY-ENTRY/EXIT feature makes getting
in and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board com-
puter (Y
page 230). G
WARNING
Make sure that nobody can become trapped
when you activate the EASY-ENTRY/EXIT fea-
ture.
If there is arisk of someone becoming trap-
ped, stop the adjustmen tprocedure. To halt
the procedure:
R move the switch for steering whee ladjust-
ment in the opposite directio ntothat in
which the steering whee lismoving.
R press one of the memory function position
buttons.
Never leave children unsupervise dinthe vehi-
cle. They could open the driver' sdoor and 108
Steerin
gwheelSeats, steering wheel and mirrors
Control panel for THERMATIC automatic climat
econtrol (2-zone) :
Activates/deactivate sair-recirculation mod e(Ypage 135)
; Demists th ewindscree n(Ypage 134)
= Activates/deactivate sthe ZONE function (Y page 134)
? Display
A Setsclimate control to automatic mod e(Ypage 132)
B Activates/deactivates coolin gwith air dehumidification ( Ypage 131)
C Switches the rear window heatin gon/off (Y page 135)
D Switches climate control on/off (Y page 131)
E Setsthe temperature, right (Y page 133)
F Setsthe air distribution (Y page 133)
G Setsthe airflow (Y page 134)
H Setsthe temperature, left (Y page 133)Notes on using THERMATIC automatic
climate control
The followin gcontain snotes and recommen-
dation sonoptimum use of THERMATI Cauto-
matic climate control.
R Activate climate control using the Ãand
¿ buttons .The indicator lamps above
the à and¿ buttons light up.
R Set the temperature to 22 †.
R Only use the demisting function briefly until
the windscreen is clear again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odours or
when in atunnel. The windows could oth- erwise mist up, as in air-recirculation mode,
no fresh air is drawn into the vehicle.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side as well. The indi-
cator lamp above the ábutton goes
out. Overview of climate control systems
129Climatecontrol Z
Note
sonu sing THERMOTRONI Cauto-
matic climate control
Below ,you can find anumbe rofnotes and
recommendations to help you use
THERMOTRONIC automatic climate control
optimally.
R Activate climate control using the Ãand
¿ buttons. The indicator lamps above
the à and¿ button slight up. You
can also set the airflow and air distribution
of the automatic climate control to one of
three levels (FOCUS/MEDIUM/DIFFUSE).
You can set the desired level using button
G.T he MEDIUM level is recommended.
R Set the temperature to 22 †.
R Only use the demisting function briefly until
the windscreen is clear again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odours or
when in atunnel. The windows could oth-
erwise mist up, as in air-recirculation mode,
no fresh air is drawn into the vehicle.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side and the rear com-
partment as well. The indicator lamp above
the á button goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicle interior
when the ignition is switched off. The resid-
ual heat function can only be activated or
deactivated with the ignition switched off. Operating the climate control system
Switching climate control on/off
Important information i
When climate control is switched off, the
air supply and air circulation are also
switched off. Only select this setting
briefly. Otherwise, the windows may mist
up. i
Switch on climate control primarily using
the à button (Y page 132).
Activating/deactivating X
Turn the key to position 2in the ignition
lock.
X To switch on: press theÃbutton.
The indicator lamp above the Ãbutton
lights up. Airflow and air distribution are set
to automatic mode.
or
X Press button ^.
The indicator lamp above the ^button
goes out. The previously selected settings
come into effect again.
X To switch off: press the^button.
The indicator lamp above the ^button
lights up. Activating/deactivating cooling with
air dehumidification
Important information The cooling with air dehumidification function
is only available when the engine is running.
The air inside the vehicle is cooled and dehu-
midified according to the temperature selec-
ted.
G
WARNING
If the "cooling with air dehumidification" func-
tion is deactivated, the air inside the vehicle
will not be cooled (during warm weather) or
dehumidified. The windows could mist up
more quickly. This may prevent you from
observing the traffic conditions, thereby caus-
ing an accident.
Condensation may drip from the underside of
the vehicle when THERMOTRONIC is in cool-
ing mode. This is normal and not asign that
there is amalfunction.
i The cooling with air dehumidification
function uses refrigerant R134a. This cool- Operating the climate control system
131Climatecontrol Z
X
To fold the bracket up: press button:.
X To fold the bracket down: press the
bracket down and allo wittoengage. Garag
edooro pener
Important safety notes The HomeLink
®
garage door opene rintegra-
ted in the rear-view mirror allows yo utooper-
ate up to thre edifferent door and gate sys-
tems.
i The garage door opene risonly available
for certain countries. Observe the legal
requirements in each country.
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) 6838 907 277 (charges apply)
R on the Internet at:
http://www.homelink.com
Programming the integrated garage
door opener in the rear-view mirror Programming
G
WARNING
Only press the transmitter button on the inte-
grated garage door opener if there are no per- sons or objects present within the sweep of
the garage door. Persons could otherwise be
injured as the door moves. Integrated garage door opener in the rear-view mir-
ror (example: Coupé)
Garaged oor remote control Ais not part of
this integrated garage door opener.
i To achieve the best results, insert new
batteries in garage door remote control
A before programming.
X Before programming for the first time, clear
the memory of the integrated garage door
opener (Y page 277).
X Turn the key to position 2in the ignition
lock.
X Press and hold one of transmitter but-
tons ;to? on the integrated garage door
opener.
After ashort time, indicator lamp :starts
flashing yellow.
i Indicator lamp :flashes yellow immedi-
ately the first time that the transmitter but-
ton is programmed. If this transmitter but-
ton has already been programmed, indica-
tor lamp :only starts flashing yellow after
10 seconds have elapsed.
X Release the transmitter button.
X Point transmitter button Bof garage door
remote control Atowards the transmitter
buttons on the rear-view mirror at adis-
tance of 5to20c m.
i The required distance between garage
door remote control Aand the integrated Features
275Stowingand features Z