
Instruments and Indicator/Warning Lights
38If the warning light does not go out after
the engine has started, or comes on when
driving, drive to the nearest specialist garage. The vehicle battery will be discharged in this case so switch off all non-
essential electrical components.
Caution
If the warning light
comes on when driving and in addition the warning light
(cooling system fault) also comes on in di
splay, you must then stop the car immedi-
ately and switch the engine off - risk of engine damage! Fuel reserve
The warning light
comes on, if the fuel level is still below 10.5 litres.
An audible signal sounds as an additional warning signal.The following text will be displayed in the information display*:
Please refuel! Range...kmNote
The Text in the information display* goes out only after refuelling and driving a short distance.Downhill Drive Support*
The warning light
comes on for a few seconds when
the ignition is switched on.
The warning light comes on when the speed of the car is less than 30 km/h and after pressing the Offroad button
⇒page 170.
The warning light flashes when the Downhill Drive Support actively intervenes.If your vehicle exceeds the speed of 30 km
/h, the Downhill Drive Support is deacti-
vated. The warning light goes out. If the sp
eed is subsequently reduced below 30 km/h,
the Downhill Drive Support is acti
vated. The warning light comes on.
The Downhill Drive Support is activated again when the engine is switched off and the car is restarted within 30 seconds. The Downhill Drive Support is deactivated after switching off the ignition.
In the event of a fault, the warning light does
not come on when the speed of the car is
less than 30 km/h and after pressing the Offroad button. Further information about the Offroad system
⇒page 170, “Off-road*”.
Temperature control of the automatic gearbox DSG*
The warning light
lights up if the temperature of the clutches of the automatic
gearbox DSG is too high. An audible signal sounds as an additional warning signal.The following text will be displayed in the information display*:
Gearbox overheated: Stop! Owner's man.!Caution
In the event that the clutches of the automatic gearbox DSG overheat, the warning light and a warning appear in the information di
splay*. In such a case bring the vehicle
to a stop and switch off the engine. You must wait until the warning light
and the
warning go out - risk of gearbox damage! Yo
u can continue the trip as soon as the
warning light and the warning go out.
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Unlocking and locking
41
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Indicator light in the driv
er's door on vehicles with anti-theft alarm system
After locking the vehicle the indicator light fl
ashes for 2 seconds fast, then more slowly.
If the vehicle is locked and the safe securing system
⇒page 41 is not operating, the
indicator light in the driver door flashes for
about 2 seconds fast, goes out and starts to
flash slowly after about 30 seconds. If the indicator light first of all flashes fast for about 2 seconds, afterwards lights up for about 30 seconds and then flashes slowly, there is a fault in the system of the central locking or the interior monitor*
⇒page 47. Visit a specialist garage to obtain assist-
ance. Convenience operation of windows One can open and close the electrically powered windows when unlocking and locking the vehicle
⇒page 49.
Opening a single door* This function makes it possible to only unlock the driver's door. The other doors and the fuel filler flap* remain locked and ar
e only unlocked after repetitive unlocking.
If you wish, you can have a sp
ecialist garage activate the function of the single door
opening mode or you can activate it yourself
in the menu of the information display*
⇒ page 24. Automatic locking* All the doors and the boot lid are locked au
tomatically once the car reaches a speed of
about 15 km/h. If the ignition key is withdrawn, the car is
then automatically unlocked again. In addi-
tion, it is possible for the driver to unlock
the car by pressing the central locking button
⇒page 40 or by pulling the door opening lever.
If you wish, you can have a sp
ecialist garage activate the function of the single door
opening mode or you can activate it yourself
in the menu of the information display*
⇒ page 24.
WARNING
Locking the doors prevents
involuntary opening in an exceptional situation (an
accident). Locked doors prevent unwanted
entry into the vehicle from outside,
for example at road crossings. Locked do
ors do, however, make it more difficult
for rescuers to get into the vehicle
in an emergency - danger to life!
Note
•
In the event of an accident in which the airbags are deployed, the locked doors are
automatically unlocked in order to enable
rescuers to gain access to the vehicle.
•
Only the front doors can be unlocked and locked using the key if the central locking
system fails. You can lock or unlock ma
nually the other doors and the boot lid.
− Emergency locking of the door
⇒page 43.
− Emergency unlocking of the boot lid
⇒page 44.
Safe securingThe central locking system is equipped with a
safe securing
6) system. Locking the
vehicle from the outside causes
the door locks to be automatically blocked. It is not
possible to open the doors with the door ha
ndle either from the inside or from the
outside. This acts as
an effective deterrent for attemp
ts to break into your vehicle.
You can deactivate the safe securing sy
stem by locking twice within 2°seconds.
If the safe securing system is not operating, the warning light in the driver door flashes for about 2 seconds fast, goes out and starts to flash slowly again after about 30°seconds. The safe securing system is again activate
d the next time the vehicle is unlocked and
locked again. If the vehicle is locked and the safe securi
ng system is deactiva
ted, you can open the
vehicle from the inside by pulling on the door opening lever. The door is unlocked and opened at the same time.6)Only valid for some countries.WARNING (continued)
sgg.6.book Page 41 Thursday, September 24, 2009 2:32 PM

Unlocking and locking
42
WARNING
If the vehicle is locked from the outside and the safe securing system is acti- vated, there must not be any person and animals in the vehicle as it is then not possible to open either a door or a window from the inside. The locked doors make it more difficult for rescuers to
get into the vehicl
e in an emergency,
hazard!
Note
The anti-theft alarm system* is also activated with the deactivated safe securing system when locking the vehicle. The interior monitor* is however not activated.Unlocking the vehicle using the key– Turn the key in the locking cylinder of the
driver's door in the direction of travel
(unlock position)
⇒fig. 33
.
– Pull on the door handle and open the door.•
All the doors (only the driver's door on ve
hicles with anti-theft alarm system) and
the fuel filler flap* are unlocked.•
The boot lid is then unlocked.
•
The switched on interior lights
come on over the door contact.
•
The safe securing system is deactivated.
•
The windows open provided the key
is held
* in the unlock position. On vehicles
fitted with anti-theft alarm system the window operation is only possible 45 seconds after deactivation of the warning system.•
The indicator light in the driver's door stops flashing if the vehicle is not fitted with
an anti-theft alarm system*
⇒page 46.
Note
If the vehicle is equipped with an anti-the
ft alarm system*, you must unlock the vehicle
by inserting the key into the driver door you then have to insert the key into the ignition lock and switch the ignition on within
15 seconds after opening the door. The
alarm
will be triggered
if you do
not switch on
the ignition within 15 seconds.
Locking the vehicle with the key– Turn the key in the locking cylinder of the driver's door in the opposite direction of
travel (lock position)
⇒fig. 33
.
•
The doors, the boot lid and the fuel filler flap* are locked.
•
The switched on interior lights will
switch off over the door contact.
•
The windows and the electric sliding/tilting roof* close provided the key is
held
in
the lock position.•
The safe securing system is activated immediately.
•
The indicator light in the dr
iver door begins flashing.
Note
The opened driver door cannot be locked. It
must be locked separately after closing
it.
Fig. 33 Turning the key for unlocking and locking the vehicle
AA
AB
sgg.6.book Page 42 Thursday, September 24, 2009 2:32 PM

Unlocking and locking
43
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Button for the central locking systemIf the vehicle was not locked from outside,
you can also unlock and lock it with the
rocker switch on the centre consol
e without the ignition switched on.
Locking all doors and the boot lid– Press button
⇒page 43, fig. 34
. The symbol
in the button comes on.
Unlocking all doors and the boot lid– Press button
⇒page 43, fig. 34
. The symbol
goes out in the button.
The following applies if
you have locked your vehicle using the button :
•
It is not possible to open the doors or the boot lid from the outside (safety feature,
e.g. when stopping at traffic lights etc.).•
You can unlock the doors individually from the inside and open them by pulling the
door opening lever.•
As long as one door is opened
7), the doors cannot be locked in order to avoid inad-
vertently locking the key in the vehicle.•
In the event of an accident in which the airbags are deployed, the locked doors are
automatically unlocked from the inside in orde
r to enable rescuers to gain access to
the vehicle. By pressing and holding the button or ,
you can conveniently close or open the
windows
⇒page 49.
WARNING
The central locking system al
so operates if the ignition is switched off. All the
doors and the boot lid are locked. Children should never be left unattended in the vehicle since it is difficult to prov
ide assistance from the outside when the
doors are locked. Locked doors make it difficult for rescuers to get into the vehicle in an emergency - hazard!
Note
The door opening lever and the buttons for
the central locking system do not operate
if the safe securing system is activated.Emergency locking of the doorsAll the other doors without locking cylinder
have an emergency locking which is only
visible once the door is opened. The emergenc
y locking must be used in particular if
the vehicle battery fails.Locking– Remove the panel
⇒fig. 35
.
– Insert the key into the slot and turn it
into the horizontal position in the direc-
tion of the arrow (mirror-inverted on the right doors).
– Re-insert the panel.
7)Is not valid for the boot lid.
Fig. 34 Centre console: Buttons for central locking
A1A2
A1
A1
A2
Fig. 35 Rear door: Emergency locking of the door
AA
AB
sgg.6.book Page 43 Thursday, September 24, 2009 2:32 PM

Unlocking and locking
46In addition, when the car is unlocked, the electrically adjustable seats and exterior mirrors* move into the position assigned to this key. The stored setting of driver seat and exterior mirrors is retrieved. Display of the locking The turn signal lights flash once to confir
m that the vehicle has been correctly locked.
If the vehicle is locked by pr
essing the button and some doors or the boot lid are
not closed, the turn signal lights flash only after closing.
WARNING
If the vehicle is locked from the outside and the safe securing system is acti-vated, there must not be any person in the vehicle as it is then not possible to open either a door or a window from the inside. The locked doors make it more difficult for rescuers to get into th
e vehicle in an emergency - hazard!
Note
•
Operate the radio remote control only when
the doors and boot lid are closed and
you have visual contact with the vehicle.•
Once in the car, you must
not press the lock button
of the radio remote control
before inserting the key into the ignition lock in order to avoid the car being inadvert- ently locked and the alarm system* being switched on. Should this happen, press the unlock button
of the radio remote control.
Synchonisation of the remote controlIf the vehicle cannot be unlocked by actuatin
g the remote control system then it is
possible that the code in the key and the co
ntrol unit in the vehicle are no longer
synchronised. This can occur when the buttons on the radio-operated key are actuated a number of times outside of the operative
range of the equipment or the battery on
the remote control was replaced. This means it is necessary to
synchronise the code as follows:
•
Press any button on the remote control.
•
pressing of the button means that the d
oor will unlock with the key within 1
minute.
Anti-theft alarm system*DescriptionThe anti-theft alarm system increases the level of protection against people seeking to break into the vehicle. The system triggers audible and visual warning signals if an attempt is made to break into the vehicle. How is the alarm
system activated?
The anti-theft alarm system is activated au
tomatically when the vehicle is locked with
the key on the closed driver's door or by us
ing the radio remote control. It is activated
30 seconds after locking the door. How is the alarm system deactivated? The anti-theft alarm system is deactivated if
the vehicle is unlocked by only using the
radio remote control. The vehicle is automati
cally locked again if the vehicle is not
opened within 30 seconds after reactivating the anti-theft alarm system. Once you unlock the vehicle by inserting the ke
y into the driver door you then have to
insert the key into the ignition lock and sw
itch the ignition on within 15 seconds after
opening the door in order to deactivate the anti-theft alarm system. The
alarm will be
triggered
if you do
not switch on
the ignition within 15 seconds.
When is the alarm triggered? The following security areas of
the locked vehicle are monitored:
•
Bonnet,
•
Boot lid,
•
Doors,
•
Ignition lock,
•
Angle of the vehicle*
⇒page 47,
•
Vehicle interior*
⇒page 47,
•
A drop in voltage of the on-board power supply.
An alarm is immediately triggered if either of the two battery terminals is disconnected while the anti-theft alarm system is activated.
A3
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Unlocking and locking
48 Closing a window– A window is closed through pulling lightly on the respective button in the door. The
closing process stops when
one releases the button.
– Additionally you can close the window auto
matically (fully clos
ed) by pulling the
button up to the stop. Renewed pulling of the button causes the window to stop immediately.
The buttons for the individual windows are located in the armrest of the driver's door ⇒ page 47, fig. 40
, front passenger door and in the rear doors*
⇒page 48.
Buttons for the power windows in the armrest for the driver Button for the power window in the driver's door Button for the power window in the front passenger's door Button for the power window in the rear door on the right* Button for the power window in the rear door on the left* Safety pushbutton* Safety pushbutton* You can deactivate the buttons for power wind
ows at rear doors by pressing the safety
pushbutton
⇒page 47, fig. 40
. The buttons for power windows at rear doors are
activated again by pressing
the safety pushbutton again.
If the buttons for the rear doors are deactivated, the indicator light
in the safety
switch lights up.
WARNING
•
If you lock the vehicle from the outside, do not leave any person in the
vehicle since it is no longer possible to
open the windows from the inside in an
emergency.•
The system is fitted with a force limiter
⇒page 49. If there is an obstacle, the
closing process is stopped and the window
goes down by several centimeters.
You should then take particular care when closing the windows! You may otherwise suffer severe injuries as a re
sult of getting an arm, for example,
jammed in the window!
•
It is recommended to deactivate the el
ectrically operated
power windows in
the rear doors (safety pushbutton)
⇒page 47, fig. 40
when children are
being transported on the rear seats.
Note
•
After switching the ignition off, it is still
possible to open or close the windows for a
further 10 minutes. The automatic closing and opening functions will not operate during this time. The power windows are sw
itched off completely once you open the
driver or front passenger door.•
When driving always use the existing he
ating, air conditioning and ventilation
system for ventilating the interior of the vehicle. If the windows are opened, dust as well as other dirt can get into the vehicle an
d in addition the wind noise is more at
certain speeds.Button in front passenger door and in rear doorsA button for the relevant window is provided in these doors.Opening a window– Lightly press the appropriate button
down
and hold it until the window has moved
into the desired position.
AAABACADAS
AS
AS
AS
WARNING (continued)
AS
Fig. 41 Position of button in front passenger door
sgg.6.book Page 48 Thursday, September 24, 2009 2:32 PM

Lights and Visibility
53
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Lights and VisibilityLightsSwitching lights on and off
Switching on side lights– Turn the light switch into position
.
Switching on the low beam and main beam– Turn the light switch into position
.
– Press the main beam lever forward in order to switch on the main beam
⇒ page 59, fig. 50
.
Switching off lights (except daylight driving lights)– Turn the light switch into position°0. Low beam comes on only if the ignition is
switched on. After switching off the ignition,
the low beam is switched off automatically and only the side lights come on. For vehi- cles which are equipped with the function Coming/Leaving-Home*
⇒page 55, the
side lights also go out. On models fitted with
right-hand steering
the position of certain switches differs
from that shown in
⇒fig. 44
. The symbols which mark the switch positions are iden-
tical, however.
WARNING
Never drive with side lights on - risk of accident! The side lights are not bright enough to light up the road sufficiently in front of you or to be seen by other oncoming traffic. In this case, always switch on the low beam when it is dark or if visibility is poor.
Note
•
An audible warning will sound if you wi
thdraw the ignition key and open the
driver's door when the vehicle lights are still on.•
The acoustic warning signal is switched off over the door contact when the driver's
door is closed (ignition off). The vehicle
can be parked with
the side lights on.
•
If the car is parked for a lengthy period,
we recommend switching off all lights, or
leaving only the parking lights switched on.•
The switching on of the described lights
should only be undertaken in accordance
with the legal requirements.•
If a fault occurs in the light switch
, the low beam comes on automatically.
•
In the event of cool or humid weather cond
itions, the headlights can be misted up
from inside.
− The temperature difference between interior and external area of the headlight lenses is decisive. − When the driving lights are switched on,
the light outlet surfaces are free from
mist after a short period. The headlight lens
es can possibly mist up at the border
areas. − It also concerns reverse light and turn signal lights. − This mist has no influence on th
e life of the lighting system.
Daylight driving lightsIn some countries, the na
tional legal provisions require that the vehicles are equipped
with the function daylight driving lights.
Fig. 44 Dash panel: Light switch
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Lights and Visibility
55
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Rain lights If you switch on the windscreen wipe in th
e operation rain sensor* for longer than 10
seconds or in the operation permanent wipe (position 2 or 3)
⇒page 63 switching on
for longer than 15 seconds, the side lights
and low beam are switched on automati-
cally. The light switches off if the windscreen wipe is in operation rain sensor* for more than 4 minutes or is not switched
on in the operation permanent wipe.
WARNING
The automatic light control only operat
es as a support. Th
e driver is not
released from his responsibility to inspect the light and if necessary to switch on the light depending on the light conditions. The light sensor cannot detect for example rain or snow. For these conditions we recommend to switch on the low beam
!
Note
•
Do not affix any stickers in front of the light sensor, so that you do not impair its
function or put it out of operation.•
The same principles as for using the automa
tic light control also
apply to the light
which is switched on manually
⇒page 53.
Cornering lights*The cornering lights are used to illuminate
the curves by means of the cone of light
swiveling together with the front headlight with Xenon lights*. This function is active when the speed of the car increases to more than 10km/h. The swiveling function of the headlights ca
n be switched off / on via the menu point
Assistant
in the main menu of the Information display*
⇒page 24.
WARNING
If the cornering ligh
ts are defective, the headlights are automatically lowered to
the emergency position, which prevents a
possible dazzling of oncoming traffic.
Thus the illuminated length of the road is shortened. Drive carefully and have the car inspected immediatel
y by a specialist garage.
Coming Home FunctionThe function makes it possible to switch on the lights in the darkness for a short time after leaving the vehicle.Switching on Coming Home Function– The light switch is in the position automatic driving lamp control
and the low
beam illuminates.
– Switch off the ignition. – After opening the driver's door, the function Coming Home is switched on.– Close all the doors and the boot lid and lo
ck the vehicle. After a short time, switch
all lights off.
Depending on equipment fitted the function Coming Home switches on the following lights:•
Parking lights,
•
Low beam,
•
Entry lighting in the exterior mirrors,
•
Licence plate light.
Coming Home Function The lights go out 10 seconds after cl
osing all the doors and the boot lid.
If a door or the boot lid re
mains open, the lights go out
60 seconds after switching off
the ignition. The function Coming Home is controlled with the light sensor in the mount of the inte- rior rear mirror. If the light intensity is higher than the set value of the light sensor, the Coming Home Function is not switched on after switching off the ignition.
Note
•
If the Coming Home Function is switched
on constantly, the battery will be heavily
discharged particularly in short-haul traffic.•
The switching on of the described lights
should only be undertaken in accordance
with the legal requirements.
sgg.6.book Page 55 Thursday, September 24, 2009 2:32 PM