
Direct switching on/off
Fig. 96 Button for direct switching on/
off of the auxiliary heating (auxiliary
heating and ventilation) on the operat-
ing part of the air conditioning system
The auxiliary heating (auxiliary heating and ventilation) can be switched on or off
directly with the button on the air conditioning system, Climatronic- or heating
⇒ fig. 96 .
If the auxiliary heating and ventilation is not switched off earlier, it switches off
automatically after the expiration of the set operating period, in the menu Run-
ning time.
Using the system So that the auxiliary heating (auxiliary heating and ventilation)
functions according to your expectations, it is necessary to carry
out the basic setting before its programming.
Basic setting
– On the information display, select in the Main menu the menu point Aux. heat-
ing.
– In the menu Aux. heating select the menu point Day of the wk. and set to-
day's date.
– By selecting the menu point Back, you will reach one level higher in the menu
Aux. Heating.
– In the menu Aux.
heating select the menu point Running time and set the de-
sired operating time in steps of 5 minutes. The running time can be 10 to 60
minutes.
– By selecting the menu point Back, you will reach in the menu Aux. heating.
– In the menu Aux.
heating select the menu point Mode. –
In the menu Mode select the desired mode Heating or Ventilation .
Programming For the programming of the auxiliary heating (auxiliary heating and ventilation) in
the menu Aux. heating there are three pre-set times:
● Starting time 1
● Starting time 2
● Starting time 3
In each pre-set time, the day and the time (hour and minute) can be set for
switching on the auxiliary heating and/or ventilation.
An empty position can be found between Sunday and Monday when selecting the
day. If this empty position is selected, the activation is performed without taking
into account the day.
If you leave the pre-set menu by selecting the menu Back or do not make changes
on the display for longer than 10 seconds, the set values are stored, but the pre-
set time is not active.
Both other pre-set times can be programmed and stored in the same way.
Only one programmed pre-set time can be active.
The last programmed pre-set time remains active.
After the auxiliary heating activates at the set time, it is necessary to pre-set a
time again.
Changing the active pre-set time is carried out after selecting the menu point Ac-
tivate in the menu Aux.
heating by selecting a pre-set time.
The prerequisite for the correct switching on of the auxiliary heating (auxiliary
heating and ventilation) according to the programmed pre-set time is the correct
setting of the current time and the weekday ⇒ page 95.
If the system is running, a warning light in the button for direct switching on/off
of the auxiliary heating lights up.
The running system deactivates after expiration of the operating period or is de-
activated earlier by pressing the button for direct switching on/off of the auxiliary
heating
⇒
page 95.
A random pre-set time can be deactivated by selecting the menu point Deactivate
in the menu Activate. £ 95
Heating and air conditioning system Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data

WARNING
● The parking aid is not a substitute for the driver paying proper attention
and it is always the driver's responsibility to take care when parking the vehi-
cle or carrying out similar manoeuvres.
● You should therefore satisfy yourself, before reversing, that there is no
small obstacle, such as a rock, thin post, trailer drawbar etc., behind your vehi-
cle. Such an obstacle might not be within the range detected by the sensors.
● Under certain circumstances, surfaces of certain objects and types of
clothing cannot reflect the signal of the parking aid. Thus, these objects or
people who wear such clothing are not recognised by the sensors of the park-
ing aid. Note
● The parking aid does not operate if you are towing a trailer (applies to models
which feature a factory-fitted towing device).
● If a warning signal sounds for about 3 seconds after switching the ignition on
and engaging reverse gear, and there is no obstacle close to your car, this indi-
cates a system fault. Have the fault rectified by a specialist workshop.
● The sensors must be kept clean and free of ice to enable the parking aid to
operate properly.
Front and rear parking aid The parking aid provides a warning of obstacles in front and behind
the vehicle. Fig. 103 Activating the parking aid/detection range of the front sensors The audible parking aid determines the distance between the front or rear bump-
er and an obstacle with the aid of ultrasound sensors. The sensors are integrated
in the front and rear bumper. The signal tones for the front parking aid sound
higher as standard than for the rear parking aid. The tones of the parking aid can
be adapted in the menu of the Information display ⇒ page 19.
Range of sensors
The distance warning begins at a distance of about 120 cm from the obstacle in
front of the vehicle (area A ⇒
fig. 103) and about 160 cm from the obstacle behind
the vehicle (area A ⇒ fig. 102
). The interval between the warning signals becomes
shorter as the clearance is reduced.
A continuous tone sounds from a distance of approx. 30 cm (area B ) - danger
area. From this moment on do not continue driving! If the vehicle is equipped with
a factory-fitted towing device, the border of the danger area starts -
continuous
tone - 5 cm further away from the vehicle. The vehicle can be extended through
an installed detachable towing device.
On factory-fitted radio navigation systems and car stereos, the distance to the ob-
struction can also be shown graphically in the display. On vehicles with a factory-
fitted towing device, the rear sensors are deactivated when towing a trailer. The
driver is informed about this by a graphic display (vehicle towing a trailer) in the
radio or the radio navigation display. In some factory fitted radios or radio naviga-
tion systems, you can configure the system to reduce the playback volume when
the parking aid is active, see the owner's manual for the radio or radio navigation
system. This makes it easier to hear the parking aid.
Activating
The parking aid is activated when the reverse gear is engaged and the ignition is
switched on or by pressing the button ⇒ fig. 103 - left, the symbol lights up in
the button. The activation is confirmed by a brief acknowledgement signal.
Deactivating
The parking aid is deactivated after pressing the button
⇒
fig. 103 - left, or at a
speed of more than 10 km/h - the symbol in the button is no longer illuminated. £ 103
Starting-off and Driving Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data

WARNING
● The parking aid is not a substitute for the driver paying proper attention
and it is always the driver's responsibility to take care when reversing the ve-
hicle or carrying out similar manoeuvres.
● You should therefore satisfy yourself, before reversing, that there is no
small obstacle, such as a rock, thin post, trailer drawbar etc., in front or behind
your vehicle. Such an obstacle might not be within the range detected by the
sensors.
● Under certain circumstances, surfaces of certain objects and types of
clothing cannot reflect the signal of the parking aid. Thus, these objects or
people who wear such clothing are not recognised by the sensors of the park-
ing aid. Note
● Only the front parking aid operates if you are towing a trailer (applies only to
models which feature a factory-fitted towing device).
● If a warning signal sounds for about 3 seconds after activating the system and
there is no obstacle close to your car, this indicates a system fault. The fault is
confirmed additionally when the symbol flashes in the button ⇒ fig. 103 - left.
Have the fault rectified by a specialist workshop.
● The sensors must be kept clean and free of ice to enable the parking aid to
operate properly.
● If the parking aid is activated and the selector lever of the automatic gearbox
is in the position P , warning signal indicates interruption (vehicle can no longer
move).
Cruise control system (CCS) Introduction The cruise control system (CCS) maintains a constant speed, more than 30 km/h
(20 mph), once it has been set, without you having to depress the accelerator
pedal. This is only possible within the range which is permitted by the power out-
put and braking power of the engine. The cruise control system makes it possible
- particularly on long journeys - for you to rest your
“accelerator foot”. WARNING
● For safety reasons, the cruise control system must not be used in dense
traffic or on unfavourable road surfaces (such as icy roads, slippery roads,
loose gravel) - risk of accident!
● In order to prevent unintentional use of the cruise control system, always
switch off the system after use. Note
● Models fitted with a manual gearbox: Always depress the clutch pedal if you
switch on the cruise control system when the gearbox is in Neutral! Otherwise the
engine can rev up unintentionally.
● The cruise control system is not able to maintain a constant speed when driv-
ing on steep downhill sections. The weight of the vehicle increases the speed at
which it travels. One should shift down in good time to a lower gear or slow the
vehicle down by applying the foot brake.
● It is not possible on vehicles fitted with an automatic gearbox to switch on the
cruise control system if the selector lever is in the position P, N or R.
Storing a speed Fig. 104 Operating lever: Rocker button
and switch of the cruise control system
The cruise control system is operated by means of the switch A
⇒ fig. 104 and
the rocker button B in the left lever of the multi-functional switch.
– Press the switch A into the position ON.
– After the desired speed has been reached, press the rocker button B into the
SET position. £104
Starting-off and Driving

WARNING
● The brake servo unit and power steering only operate if the engine is run-
ning.
● Never let the vehicle roll with the engine switched off. CAUTION
If the “START-STOP” system is used at very high outside temperatures over a very
long period of time, the vehicle battery can be damaged. Note
● Changes to the outdoor temperature can have an effect on the internal tem-
perature of the vehicle battery even after several hours. If the vehicle remains
outdoors for a long time in minus temperatures or in direct sunlight, it can take
several hours until the internal temperature of the vehicle battery reaches a suita-
ble temperature for proper operation of the
“START STOP” system.
● In some instances it may be necessary to start the engine manually with the
ignition key (e.g. when the seat belt is not inserted or the driver's door is opened
for more than 30 seconds). Follow the messages in the instrument cluster display.
● If the Climatronic is running in automatic mode, under certain conditions, the
engine may not switch off automatically. 107
Starting-off and Driving Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data

Automatic gearbox
Information for driving with the 6-speed automatic
gearbox The maximum speed is reached in the 5th gear. The 6th gear serves as an eco-
nomic driving programme, which is intended to reduce the fuel consumption.
Shifting up and down through the gears is performed automatically. You can also,
however, switch the gearbox over into the Tiptronic mode. This mode makes it
possible for you to also shift gears manually ⇒ page 112.
Starting-off and Driving
– Depress the brake pedal fully and keep it depressed.
– Press the Shiftlock button (button in handle of the selector lever), move the
selector lever into the desired position, e.g. D ⇒ page 110, and then release
the Shiftlock button.
– Wait a moment until the gearbox has shifted (a slight engagement nudge can
be felt).
– Release the brake pedal and depress the accelerator ⇒ .
Stop
– The selector lever position N does not have to be selected when stopping just
for a short time, such as at a cross roads. It is absolutely sufficient to hold the
stopped vehicle stationary by depressing the foot brake. The engine can, how-
ever, be allowed just to idle.
Parking
– Depress the brake pedal and hold it depressed.
– Apply the handbrake firmly.
– Press and Shiftlock button in the selector lever, move the selector lever to P
and then release the Shiftlock button.
The engine can only be started when the selector lever is in position P or N . If the
selector lever is not in the P or N positions when locking the steering, switching
the ignition on or off or when leaving the engine on, the following message will
appear in the Information display Move selector lever to position P/N! or, in the
instrument cluster display: P/N. It is sufficient to engage selector lever position
P when parking on a flat surface.
When parking on a slope you should first apply the handbrake firmly and then
move the selector lever into position P. This is to ensure that there is no excessive
pressure acting on the lock mechanism and that it is easier to subsequently move
the selector lever out of position P. If the selector lever is not in the P positin
when the driver's door is open and the ignition is switched off, or if it is not in the
P position when the ignition is switched off and the driver's door is opened, the
following message will appear in the Information display: Move selector lever to
position P! or, in the instrument cluster display: P. The message disappears af-
ter a few seconds by switching on the ignition or by moving the selector lever into
the position P .
If the selector lever position N is selected by accident while driving it is first nec-
essary to release pressure on the accelerator pedal and wait for idling speed of
the engine to be reached before engaging a drive position in the selector lever. WARNING
● Do not depress the accelerator when changing the position of the selector
lever if the car is stationary and the engine is running - risk of accident!
● Never move the selector lever into position R or P when driving - risk of an
accident!
● When the engine is running and the vehicle is stationary, it is necessary to
hold the car with the brake pedal in all the positions of the selector lever (ex-
cept P and N) since the power transmission is never completely interrupted,
also not when the engine is idling - the vehicle creeps.
Information for driving with the automatic gearbox
DSG The abbreviation DSG means Direct shift gearbox (Direct shift gear-
box).
Two independent clutches are needed for the power transmission between the
engine and the gearbox. These replace the torque converter of the conventional
automatic gearbox. Their shifting is matched in such a way that there are no jerks
when shifting the gear and the power transmission of the engine to the front
wheels is not interrupted. Shifting up and down through the gears is performed £108
Automatic gearbox

automatically. You can also, however, switch the gearbox over into the
Tiptronic
mode. This mode makes it possible for you to also shift gears manually
⇒ page 112.
Starting-off and Driving
– Depress the brake pedal fully and keep it depressed.
– Press the Shiftlock button (button in handle of the selector lever), move the
selector lever into the desired position, e.g. D ⇒ page 110, and then release
the Shiftlock button.
– Release the brake pedal and depress the accelerator ⇒ .
Stop
– The selector lever position N does not have to be selected when stopping just
for a short time, such as at a cross roads. It is absolutely sufficient to hold the
stopped vehicle stationary by depressing the foot brake. The engine can, how-
ever, be allowed just to idle.
Parking
– Depress the brake pedal and hold it depressed.
– Apply the handbrake firmly.
– Press and Shiftlock button in the selector lever, move the selector lever to P
and then release the Shiftlock button.
The engine can only be started when the selector lever is in position P or N . If the
selector lever is not in the P or N positions when locking the steering, switching
the ignition on or off or when leaving the engine on, the following message will
appear in the Information display Move selector lever to position P/N! or, in the
instrument cluster display: P/N. At temperatures below -10 °C the engine can
only be started in the selector lever position P.
It is sufficient to engage selector lever position P when parking on a flat surface.
When parking on a slope you should first apply the handbrake firmly and then
move the selector lever into position P. This is to ensure that there is no excessive
pressure acting on the lock mechanism and that it is easier to subsequently move
the selector lever out of position P. If the selector lever is not in the P positin
when the driver's door is open and the ignition is switched off, or if it is not in the
P position when the ignition is switched off and the driver's door is opened, the
following message will appear in the Information display: Move selector lever to
position P! or, in the instrument cluster display: P. The message disappears af-
ter a few seconds by switching on the ignition or by moving the selector lever into
the position P . If the selector lever position
N is selected by accident while driving it is first nec-
essary to release pressure on the accelerator pedal and wait for idling speed of
the engine to be reached before engaging a drive position in the selector lever. WARNING
● Do not depress the accelerator when changing the position of the selector
lever if the car is stationary and the engine is running - risk of accident!
● Never move the selector lever into position R or P when driving - risk of an
accident!
● If you are stopping at a hill (downhill section), never try to hold the car sta-
tionary with the gear engaged by means of the “accelerator”, this means by
letting the clutch slip. This can lead to overheating of the clutch. If there is a
risk of overheating of the clutch due to overload, the clutch is opened auto-
matically and the vehicle rolls backward - risk of accident!
● If you must stop at a slope, depress and hold the brake pedal, so that you
can prevent the vehicle from rolling back. CAUTION
● The double clutch on the automatic gearbox DSG is equipped with an overload
protection. If you make use of the uphill function on a vehicle which is stationary
or driving slowly uphill, it will result in an increase of thermal stress of the clutch-
es.
● In the event that they overheat, the symbol appears in the information dis-
play with the warning text ⇒ page 29. In such a case bring the vehicle to a stop,
switch off the engine and wait until the warning light and the warning go out -
risk of gearbox damage! You can continue the trip as soon as the symbol and the
warning go out. 109
Automatic gearbox Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data

WARNING (Continued)
● You must on no account unintentionally operate the throttle (e.g. by hand
from the engine compartment) if a drive position is engaged when the car is
stationary. The vehicle would otherwise immediately start off - also when the
handbrake is firmly applied - risk of an accident!
● You must move the selector lever into position P and firmly apply the
handbrake first before you or any other person opens the bonnet and starts
working on the engine when it is running - risk of accident! It is also essential
to observe all warnings ⇒ page 181, Working in the engine compartment
.
Selector lever lock Automatic selector lever lock
With the ignition on, the selector lever is locked when it is in the positions P and
N. You must first of all depress the brake pedal in order to move the selector lever
out of this position. The warning light ⇒
page 27 lights up in the instrument
cluster as a reminder for the driver when the selector lever is in the positions P
and N.
A time delay element ensures that the selector lever is not blocked when rapidly
switching over the position N (e.g. from R to D). This does, for example, allow one
to seesaw out a stuck vehicle. The selector lever lock will click into place if the lev-
er is in the N position for more than 2 seconds without the brake pedal being
pressed.
The selector lever lock is only active if the vehicle is stationary or moving at speed
of less than 5 km/hour. The lock is switched off automatically into position N
when the car is travelling at a higher speed.
Shiftlock button
The Shiftlock button in the handle of selector lever prevents certain selector lever
positions being engaged inadvertently. The selector lever lock is cancelled when
you press the Shiftlock button.
Keylock - Ignition key withdrawal lock
You can only withdraw the ignition key after switching off the ignition if the selec-
tor lever is in position P. If the ignition key is withdrawn, the selector lever is
blocked in position P . Kickdown function The kickdown function provides you with maximum acceleration
power.
Fully depressing the accelerator pedal allows the kickdown function to be activa-
ted in the desired driving program. This function has precedence over the driving
programme and serves for maximum acceleration of the vehicle when exploiting
the maximum power potential of the engine without taking into account the cur-
rent selector lever position ( D, S or Tiptronic ). The gearbox shifts down to one or
several gears in line with the driving state and the vehicle accelerates. The gear-
box does not shift up into the highest gear until the engine has reached its maxi-
mum revolutions for this gear range. WARNING
Please note that using the kickdown function can result in the driven wheels
spinning on a smooth or slippery road surface - risk of skidding!
Dynamic shift programme The automatic gearbox of your vehicle is controlled electronically. Shifting up and
down through the gears is performed automatically on the basis of pre-defined
driving programmes.
Adopting a moderate style of driving
will cause the gearbox to select the most
economical driving programme. Shifting up into a higher gear as soon as possible
and shifting down as late as possible will have a favourable effect on your fuel
consumption.
Adopting a sporty style of driving with rapid movements of the accelerator pedal
combined with sharp acceleration and frequent changes in speed, exploiting the
top speed of the car or depressing the accelerator pedal (kickdown function), will
cause the gearbox to switch over to this style of driving and shift down earlier
with frequent changes in gears in comparison to the moderate style of driving.
Selecting the most appropriate driving programme for the particular style of driv-
ing is a continuous process. Irrespective of this it is, however, possible to switch or
shift down into a dynamic shift programme by depressing the accelerator rapidly.
The gearbox shifts down into a lower gear matching the speed of the car and this
allows you to accelerate rapidly (e.g. when overtaking) without having to depress £ 111
Automatic gearbox Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data

Voice command Action
MUSIC
a) Play music from the mobile phone or another paired
device.
FURTHER OPTIONS After this command the system offers additional con-
text-dependent commands. SETTINGS Selection for setting Bluetooth
®
, dialogue etc. CANCEL The dialogue is ended.
a)
On vehicles fitted with the radio navigation system Amundsen+, this function can be accessed via
the menu of the radio navigation system, see the operating instructions for the Amundsen+.
After giving the command DIAL NUMBER, the system requests the entry of a tele-
phone number. You can enter the telephone number as a continuous row, as indi-
vidually spoken digits (the whole number at once) or in the form of digital blocks
(separated by short pauses). After each order of digits (separation through brief
voice pause) all of the digits detected up to now are repeated by the system.
The digits 0 - 9 , symbols +, , # are permitted. The system detects no continuous
digit combinations such as twenty-three, but only individually spoken digits (two,
three).
Call name –
Switch on the voice operation ⇒ page 121, Voice control.
– Give the command CALL XYZ after the signal tone.
Example for calling the name from the phone book Voice command Announcement
CALL XYZ “Say home, work, mobile
”e.g.
WORK “XYZ work is dialed.
”CALL XYZ WORK “XYZ work is dialed.
”Store voice recording of a contact
If automatic name recognition does not work reliably for some contacts, you will
can choose to save your own voice entry for the contact in the menu point
Phone
book - Voice Tag - Record.
You can also store your own voice entry using voice control in the menu FURTHER
OPTIONS . Music playback via Bluetooth
® The universal telephone preinstallation GSM IIl makes it possible to play back mu-
sic via Bluetooth ®
from the devices such as MP3 player, mobile phone or note-
book.
In order to enable the music playback via Bluetooth ®
, it is necessary to connect
the terminal device with the hands-free system in the menu Phone
- Bluetooth -
Media player .
The operation of the music playback from the connected device can be performed
via the hands-free system with the voice control ⇒ page 121, Voice commands or
directly via the connected device. Note
● The device to be connected must support the Bluetooth ®
profile A2DP, see
Owner's manual of the device to be coupled.
● This function is not available in vehicles fitted with the car radio Blues.
Universal telephone preinstallation GSM IIl Introduction The universal telephone preinstallation GSM III is a built-in “hands-free system”, it
provides a voice operated convenience mode via the multifunction steering wheel or the radio navigation system.
The following functions are included in the universal telephone preinstallation
GSM III:
● Phone Phonebook ⇒
page 123.
● Convenience mode with the multifunction steering wheel ⇒ page 125 and dis-
play in the information display ⇒ page 126.
● Voice control of the telephone, including the language selection of the tele-
phone contacts ⇒ page 128.
● Internet connection ⇒ page 129.
● Music playback from the telephone or other multimedia units ⇒
page 129.
● Display of SMS ⇒ page 126.
All communication between a telephone and the hands-free system of your vehi-
cle can only be established with the help of the following profiles of Bluetooth ®
technology. £122
Communication