
Automatic gearbox DSG*
122WARNING
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 (except
P and N) since the power transmission is never completely interrupted, also not
when the engine is idling - the vehicle creeps.
You must on no account unintentionally operate the throttle (e.g. by hand
from the engine compartment) if a driv e 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 hand-
brake 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 204, “Working in the engine compartment”.
Selector lever lockAutomatic 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 or der to move the selector lever out of this
position. The warning light
page 34 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 lo ck will click into place if the lever 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 swit ched off automatically into position N when the
car is travelling at a higher speed.
Shiftlock button
The Shiftlock button in the hand le of selector lever prevents certain selector lever posi-
tions being engaged inadvertently. The select or 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 selector
lever is in position P. If the ignition key is withdrawn, the selector lever is blocked in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 accelerato r pedal allows the kickdown function to be activated in
the desired driving program. This function has precedence over the driving
programme and serves for maximum accelerati on of the vehicle when exploiting the
maximum power potential of the engine wi thout taking into account the current
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 gearbox does not
shift up into the highest gear until the en gine has reached its maximum 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 programmeThe automatic gearbox of your vehicle is controlled electronically. Shifting up and
down through the gears is performed automati cally 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 po ssible will have a favourable effect on your fuel consump-
tion.
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
s2ug.6.book Page 122 Friday, April 9, 2010 2:24 PM

Automatic gearbox DSG*123
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
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 driving is
a continuous process. Irrespective of this it is, however, possible to switch or shift down
into a dynamic shift programme by depressi
ng the accelerator rapidly. The gearbox
shifts down into a lower gear matching th e speed of the car and this allows you to
accelerate rapidly (e.g. when overtaking) without having to depress the accelerator
pedal fully into the kickdown range. The original programme will be reactivated to
match your particular styl e of driving once the gearbox has shifted up again.
When driving in hilly regions, the gears are selected to match uphill and downhill
sections. This avoids the gearbox frequently shifting up an d down when negotiating an
uphill stretch. When driving downhill, it is possible to shift down into the Tiptronic
position, in order to exploit the engine brake torque.
Tiptronic
The Tiptronic allows the driver to also shift gears manually.Fig. 116 Selector lever: manual shifting / information display: manual shiftingThe selector lever position you have engaged is indicated in the information display of
the instrument cluster together with the engaged gear fig. 116 - right.Switching over to manual shifting– Push the selector lever to the right out of position D. After switching over, the
current engaged gear is indicated in the display.
Shifting up gears– One-touch forward of the selector lever (in the Tiptronic position) fig. 116 -
left.Shifting down gears– One-touch back of the selector lever (in the Tiptronic position) .
It is possible to switch over to manual bo th when the car is stationary and also when
driving.
When you accelerate, the gearbox shifts up automatically into the higher gear just
before the maximum permissible engine speed is reached.
If you select a lower gear, the automatic gear box does not shift down until there is no
risk of the engine overrevving.
If you operate the kickdown function, the gear box shifts into a lower gear in line with
the vehicle speed and engine speed.Emergency programme
An emergency programme exists in the event of a fault in the system.The gearbox operates in a corresponding emergency programme if there are func-
tional faults in the gearbox electronics. This is indicated by all of the segments in the
display lighting up or going out.
A functional fault can ha ve the following effect:
The gearbox only shifts into certain gears.
The reverse gear R cannot be used.
The manual shift programme (Tiptronic) is switched off in the emergency mode.
If the gearbox has switched over to emergency mode, drive to the nearest
specialist garage in order to have the fault rectified.
A+
A-
s2ug.6.book Page 123 Friday, April 9, 2010 2:24 PM

Airbag system
146
Airbag systemDescription of the airbag systemGeneral information on the airbag systemThe front airbag system is complementary to the three-point seat belts and offers addi-
tional protection for the head and chest area of the driver and passenger in the event
of a frontal collision.
In the case of a violent side cr ash, the side* and head airbags* reduce the risk of inju-
ries to the occupants on the side of the collision .
The airbag system is only functional af ter the ignition has been switched on.
The operational readiness of the airbag syst em is monitored electronically. The airbag
indicator light comes on for a few seconds each time the ignition is switched on.
The airbag system (according to vehicle equipment) consists of:
an electronic control unit,
the front airbags for the driver and front passenger,
driver's knee airbag*,
front side airbags*,
Rear side airbags*,
head airbags*,
an airbag indicator light in the instrument cluster,
a front passenger airbag switch page 154,
an indicator light for a switched off front seat passenger airbag in the middle of the
dash panel page 154.
A fault in the airbag system exists if:
the airbag indicator light does not light up when the ignition is switched on,
the warning light does not go out after about 4 seconds after the ignition is
switched on,
the airbag indicator light goes out and come s on again after the ignition is switched
on,
the airbag indicator light comes on or flickers when driving,
the airbag indicator light showing a swit ched-off front passenger airbag in the
middle of the dash panel flashes.
WARNING
To enable the occupants of a vehicle to be protected with the greatest
possible effect when the airbag is deployed, the front seats must be
page 138, “Correct seated position” co rrectly adjusted to match the body
size of the occupant.
If you do not fasten the seat belts when driving, lean too far forward or
adopt an incorrect seated position, you are exposing yourself to increased risk
of injury in the event of an accident.
Have the airbag system checked immediat ely by a specialist garage if a fault
exists. Otherwise, there is a risk of the airbag not being activated in the event of
an accident.
No modifications of any kind may be made to parts of the airbag system.
It is prohibited to manipulate individual parts of the airbag system as this
might result in the airbag being deployed.
The protective function of the airbag system is sufficient for only one acci-
dent. The airbag system must then be re placed if the airbag has been deployed.
The airbag system needs no maintenance during its working life.
If you sell your car, please hand over the complete vehicle documentation to
the new owener. Please note that the documents relating to the possibility of
deactivating the front passenger airbag are also part of the vehicle documents!
If the vehicle or individual parts of the airbag system are scrapped, it is
essential to observe the relevant safety precautions. Specialist garages are
familiar with these regulations.
When disposing of vehicle or parts of the airbag system, it is important to
comply with the national legal requirements.
s2ug.6.book Page 146 Friday, April 9, 2010 2:24 PM

Intelligent Technology163
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Driving TipsIntelligent TechnologyElectronic stability programme (ESP)*GeneralGeneral
The ESP aids you in maintaining control of your vehicle in situations in which the
vehicle is driving at its dynamic limits, such as entering a curve fast. The risk of skidding
is reduced and your vehicle thus offers greater driving stability depending on the
conditions of the road surface. The system operates at all speeds.
The following systems are integrated into the electronic stability programme:
Electronic Differential Lock (EDL),
Traction control system (TCS),
active driver-steering recommendation (DSR),
Antilock brake system (ABS),
Brake Assist,
Uphill Start Assist
The ESP system cannot be switched off, only the TCS system can be switched off by
pressing the button fig. 146 , the warning light
lights up. Operating principle
The ESP switches on automatically when the engine is started and then conducts a
self-test. The ESP control unit processes data from the individual systems. It also proc-
esses additional measurement data which are supplied by highly sensitive sensors: the
rotational velocity of the vehicle about its ve
rtical axis, the lateral acceleration of the
vehicle, the braking pressure and the steering angle.
The direction which the driver wishes to take is determined based on the steering
angle and the speed of the vehicle and is co nstantly compared with the actual behav-
iour of the vehicle. If differences exist, such as the vehi cle beginning to skid, the ESP will
automatically brake the appropriate wheel.
The car is stabilised again by the forces wh ich take effect when the wheel is braked.
Intervention into the brake system takes place primarily on the outer front wheel of a
vehicle which tends to oversteer (tendency for the rear of the vehicle to break away)
while occurs this is on the inner rear wh eel of a vehicle which tends to understeer
(tendency to shift out of the curve). This braking control cycle is accompanied by
noises.
During an intervention of the system, the warning light
flashes in the instrument
cluster page 34.
The ESP operates in combination with the ABS page 167, “Antilock brake system
(ABS)”. If there is a fault in the ABS system, the ESP also does not operate.
The ESP warning light lights up in the instrument cluster when there is a fault on the
ESP
page 34.WARNING
It is also not possible for the ESP to overcome the physical limits of the vehicle.
Even if a vehicle fitted with ESP you should still always adapt your style of
driving to the condition of the road surfac e and the traffic situation. This partic-
ularly applies when driving on slippery and wet roads. The increased safety
Fig. 146 ESP switch
s2ug.6.book Page 163 Friday, April 9, 2010 2:24 PM

Intelligent Technology165
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Traction control system (TCS)
The traction control system prevents the driven wheels from spinning
when accelerating.General
The TCS makes it much easier, and sometimes at all possible, to start off, accelerate and
climb a steep hill when th e conditions of the road surface are unfavourable.
Operating principle
The TCS switches on automatically when th e engine is started and then conducts a
self-test. The system monitors the speeds of the driven wheels with the aid of the ABS
sensors. If the wheels are spinning, the force transmitted to the road surface is auto-
matically adapted by reducing the engine speed. The system operates at all speeds.
The TCS operates in combination with the ABS page 167, “Antilock brake system
(ABS)”. The TCS will not function if a fault exists in the ABS system.
The TCS warning light lights up in the instru ment cluster when there is a fault on the
TCS
page 33.
During an intervention of the system, the TCS warning light
flashes in the instru-
ment cluster page 33.
Switching off
You can switch the TCS off and on again as yo u wish. On vehicles fitted with ABS, you
can switch off the TCS by pressing the button fig. 147 , on vehicles fi tted with ESP*,
you can switch off the TCS wi th the aid of the button page 163, fig. 146 . The TCS warning light lights up in the instrument cluster when the system is switched off
page 33.
The TCS should normally always be switched on. It may be good practice in certain
exceptional cases, such as when you wish to have wheel slip, to switch off the system.
Examples:
when driving with snow chains
when driving in deep snow or on a loose surface
when it is necessary to rock a vehicle when it has become stuck.
then you should switch on the TCS again.
TCS Off-road*
After switching on the Off-road mode page 170, TCS Off-road is activated.
TCS Off-road provides a more effective a cceleration of the vehicle on an unfirm
ground, as it allows higher traction be tween the slipping wheels and the ground.
The system operates when starting off or at low speeds.
WARNING
You should always adjust your style of driving to the conditions of the road
surface and the traffic situation. The increased safety offered must not tempt
you to take greater risks than otherwise - risk of an accident!
Note
All four wheels must be fitted with the same tyres in order to achieve problem-free
operation of the TCS. Differing rolling circumferences of the tyres can lead to an unde-
sirable reduction in the engine output.
Changes to vehicle (e.g. on engine, on the brakes, on chassis or another combina-
tion of tyres and wheels) can influence the function of the TCS page 222, “Accesso-
ries, changes and replacement of parts”.
Fig. 147 TCS switch
s2ug.6.book Page 165 Friday, April 9, 2010 2:24 PM

Intelligent Technology169
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
WARNING
Contact your specialist garage if the power steering is defective.Tyre pressure monitoring system*The tyre pressure monitoring system compares with the aid of the ABS sensors the
speed and also the rolling circumference of the individual wheels. If the rolling circum-
ference of a wheel is changed, the warning light
lights up in the instrument cluster
page 34 and an audible sign al sounds. The rolling circumference of the tyre can
change if:
the tyre inflation pressure is too low,
the structure of the tyre is damaged,
the vehicle is loaded on one side,
the wheels of an axle are loaded heavily (e.g. when towing a trailer or when driving
uphill or downhill),
snow chains are mounted,
the temporary spare wheel is mounted,
one wheel per axle was changed.
Basic setting of the system
After changing the tyre inflation pressures, after changing one or several wheels, the
position of a wheel on the vehicle (e.g. exch anging the wheels between the axles) or when the warning light lights up while drivin
g, a basic setting of the system must be
carried out as follows.
Inflate all tyres to the specified inflation pressure page 216.
Switch on the ignition.
Press button fig. 148 for more than 2 seconds. While pressing the button,
the warning light
lights up. At the same time the memory of the system is erased
and the new calibration is started, which is confirmed with an audible signal and then
the warning light goes out.
If the warning light
does not go out after the basic setting, there is a fault in the
system. Have the vehicle inspected by your nearest specialist garage.
Warning light
lights up
If the tyre inflation pressure of at least one wheel is insufficiently inflated in comparison
to the stored basic va lue, the warning light
lights up.
Warning light
flashes
If the warning light flashes, there is a system fault. Have the vehicle inspected by your
nearest specialist garage.
WARNING
When the warning light
lights up, immediately reduce the speed and
avoid sudden steering and brake manoeuvr es. Please stop the vehicle without
delay at the nearest possible stop and in spect the tyres and their inflation pres-
sures.
The driver is responsible for the correc t tyre inflation pressures. For this
reason, the tyre inflation pressures must be checked regularly.
Under certain circumstances (e.g. sporty style of driving, wintry or unpaved
roads) the warning light
can be delayed or does not light up at all.
The tyre pressure monitoring system do es not take away the responsibility
from the driver for the correct tyre inflation pressure.Note
The tyre pressure monitoring system:
Fig. 148 Button for setting the tyre infla-
tion pressure control value
s2ug.6.book Page 169 Friday, April 9, 2010 2:24 PM

Intelligent Technology171
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
TCS Off-road page 165,
ABS Off-road page 167.
Switch on Off-road
The Off-road mode is switched on by pressing the button page 170, fig. 150 . The
warning light in the button lights up. The warning light lights up in the instrument
cluster if the system is switched on
page 37.
Switch off Off-road
The Off-road mode is switched off by repe ated pressing of the button. The warning
light in the button goes out. When switching off the ignition, the Off-road mode is also
switched off and can be switched on again, if necessary, after switching on the ignition.
If the engine is switched off by accident an d restarted within 30 seconds, the Off-road
mode remains switched on.
All four wheels must be fitted with the same tyres in order to achieve proper operation
of the Off-road mode. Differing rolling circum ferences of the tyres can lead to an unde-
sirable reduction in the engine output.
WARNING
Always adjust your speed to suit weat her, road and traffic conditions. The
increased safety must not tempt you to take a greater safety risk than otherwise
- risk of accident!
The Off-road equipment can also not overcome the physical limits of your
vehicle.
The effect of the Off-road equipment depends as well on the tyres.
The Off-road equipment is not designed for the use on common roads.
Start-Off Assist*The Start-Off Assist enhances the driving comfort and can be used when starting off, in
particular on a slope. When the vehicle is stationary, the Start-Off Assist is activated
after switching it on using the button for the Off-road mode page 170, fig. 150 .Operating principle
When depressing the accelerator pedal fully, the engine speed required for the start-
up procedure of the stationary vehicle is restricted. The overspeed trip unit is automat-
ically deactivated after terminating the start-up procedure. As part of the Assist System,
the accelerator pedal is adapted in its characteristics for an easier start-off on slippery
and loose soil.
Downhill Drive Support*Operating principle
The Downhill Drive Support maintains a cons
tant speed on a steep downhill section
when driving forwards and backwards by automatically intervening in the brake
system of all wheels. It prevents the wheels locking because the ABS remains active.
The warning light
in the information display of the instrument cluster indicates that
the Downhill Drive Support is available page 37.
The vehicle speed, which is maintained by the Assist System, is selected by the driver
while driving on a downhill section as of the moment the first intervention of the Assist
System is performed or else, while driving on a downhill section, the driver must
control the vehicle speed until the Assist System intervenes for the first time. When the
Assist System actively intervenes, this is indicated by the warning light flashing or by a
pulsating movement of the brake pedal, similar to the intervention of the ABS.
You can increase or reduce the speed, even when no gear is engaged, by operating the
accelerator or brake pedal. Thus the function is always interrupted and is reactivated
afterwards.
The Downhill Drive Support is activated auto matically if the following conditions are
met:
the Off-road mode is switched on and the warning light
lights up in the instru-
ment cluster,
the engine of the vehicle is running and either the 1st, 2nd, 3rd gear, the reverse
gear or no gear is engaged,
the engine of the vehicle is running, the selector lever of the automatic gearbox is
in the position R, N, D, S or Tiptronic,
the speed is less than 30 km/h,
s2ug.6.book Page 171 Friday, April 9, 2010 2:24 PM

Towing a trailer191
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Headlights
Before starting off with a hitched trailer, also check the setting of the headlights. Alter
the setting as necessary with the ai
d of the headlight beam adjuster page 58.
Detachable ball head
The ball rod is detachable on vehicles which feature a factory-fitted towing device. It is
stowed together with separate fitting instru ctions in the spare wheel well in the luggage
compartment of the vehicle.
Further information on the towing device page 192.
Note
We recommend that you also have your vehicle inspected between service inter-
vals if you tow a trailer frequently.
The handbrake on the towing vehicle must be put on when coupling and decou-
pling the trailer.
Driving Tips
Particular caution is required when towing a trailer.– Do not, as far as possible, drive with your vehicle unladen and the trailer laden.
– Do not make full use of the legal maximum speeds. This applies in particular to downhill sections.
– Apply the brakes in good time.
– Keep a check on the coolant temperature gauge if the outside temperature is high.
Distribution of weight
The distribution of the weight is very poor if your vehicle is unladen and the trailer is
laden. Maintain a particularly low speed if you cannot avoid driving with this combina-
tion.
Driving speed
Do not drive faster than 80 km/hour for safety reasons. This also applies for countries
in which higher speeds are allowed. The fact that the driving stability of the vehicle + trailer combination reduces with
increasing speed means that the legally allowed speed should not be used when there
are unfavourable road, weather or wind cond
itions, particularly near accident black
spots.
You must always reduce your speed immediat ely as soon as you detect even just the
slightest swaying of the trailer. On no account attempt to stop the trailer from
“swaying” by accelerating.
Apply the brakes in good time! If the trailer is fitted with a trailer brake, apply the
brakes gently at first and then brake firmly. This will avoid brake jolts resulting from the
trailer wheels locking. Shift down gears in good time before negotiating a downhill
section to allow the engine to also act as a brake.
Engine overheating
Please keep a check on the coolant temperature gauge if you have to negotiate a
lengthy slope in a low gear at a high engi ne speed when the outside temperature is
very high page 17, “Coolant temperature gauge”.
If the needle of the coolant temperature gauge moves into the right-hand area or even
the red area of the scale, reduce your speed immediately. Stop and switch off the
engine if the warning light
in the instrument cluster begins flashing. Wait a few
minutes and check the level of coolant in the coolant expansion bottle page 208,
“Inspecting the coolant level”.
Please refer to the following guidelines page 33, “Coolant temperature/ Coolant
quantity ”.
The coolant temperature can be reduced by switching on the heating.
Any increase in the cooling effect of the coolant fan through shifting down a gear and
increasing the engine speed is not possible since the fan speed is independent of the
engine speed. One should also not drop a gear for this reason when towing a trailer as
long as the engine can manage th e slope without any drop in speed.
s2ug.6.book Page 191 Friday, April 9, 2010 2:24 PM