Automatic gearbox DSG*121
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Caution
The double clutch on the automatic gear box 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 clutches.
In the event that they overheat, the warning light
and a warning text page 37
appear in the information display*. 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 warning light and the warning go
out.
Selector lever positionsFig. 115 Selector lever / informatio n display: Selector lever positionsThe current selector lever position is indica ted in the information display of the instru-
ment cluster fig. 115 - right. In the positions D and S the gear you have already
engaged will be additionally displayed on the display.
- Parklock
The driven wheels are locked me chanically in this position.
The Parklock must only be engaged when the vehicle is stationary .
If you wish to move the selector lever into or out of this position, you must press the
Shiftlock button in the handle of the selector lever and at the same time depress the
brake pedal.
If the battery is used, the selector lever cannot be moved out of the position P. - Reverse gear
Reverse gear must only be engaged when the vehicle is stationary and the engine
idling .
The brake pedal must be depressed and at the same time the Shiftlock must be
pressed, if you wish to obtain the selector lever positions R, P or N.
When the ignition is switched on an d the selector lever is in position R, the reverse
lights will come on.
- Neutral
The transmission is in Neutral in this position.
The brake pedal must be depressed (if the le ver is in its position for longer than 2
seconds) in order to move the se lector lever out of the position N into the position D
or R, with the ignition switched on, on a vehicle travelling at less than 5 km/hour or on
a stationary vehicle.
- Position for driving forward
When the selector lever is in this position, the forward gears are shifted up and down
automatically in line with engine load, vehicle speed and the dynamic shift
programme.
You must depress the brake pedal if you wish to move into position D from N when the
vehicle is travelling at less th an 5 km/hour or is stationary .
In certain circumstances (e.g. when driving in mountainous regions or when towing a
trailer) it may be beneficial to select the manual shift programme page 123 for a
short time in order to adapt the gearbox ratios manually to the driving situations.
- Position for sporty style of driving
Shifting up later into a higher gear makes it possible to fully exploit the power potential
of the engine. The gearbox also then shifts down at higher engine speeds as in the posi-
tion D.
The Shiftlock on the selector lever grip must be pressed when moving the selector
lever out of the position D into the position S.AP
ARANADAS
s2ug.6.book Page 121 Friday, April 9, 2010 2:24 PM
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 system147
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
When are the airbags deployed?The airbag system is designed in such a wa y that the driver and front passenger airbag
are deployed in the event of a violent frontal collision.
In the case of a violent side collision , the side airbag* on the side of the vehicle at
which the collision occurs, is deployed to gether with the relevant head airbag*.
In special cases, the front as well as th e relevant side and head airbags may be
deployed together.
The airbags are not deployed in the case of minor frontal and side collisions, in the
case of rear-end collisi ons and vehicle rollover.
Deployment factors
It is not possible to state globally which deployment conditions apply to the airbag
system in every situation as the circumstances which exist in the case of accidents vary
greatly. An important role in this case is played by factors such as the type of object
against which the vehicle impacts (hard, soft ), the angle of impact, the relative speed
during the accident etc.
A decisive factor for the deployment of the airbags is the deceleration which occurs
during a collision. The control unit analyses the nature of the collision and activates the
relevant restraint system. If the vehicle deceleration which occurs and is measured
during the collision remains below the prescribed reference values specified in the
control unit, the airbags are no t deployed although the vehicle may well suffer severe
damage to the bodywork as a consequence of the accident.
The airbags are not deployed if:
ignition is switched off;
a minor frontal collision;
a minor side collision;
a rear-end collision;
Rollover of the vehicle.Note
A grey white, non harmful gas is released when airbag is inflated. This is perfectly
normal and is not an indicati on of a fire in the vehicle.
In the event of an accident in which the airbags are deployed:
the interior lighting comes on (if the swit ch for the interior light is in the door
contact position),
the hazard warning li ght is switched on;
all the doors are unlocked;
the fuel supply to the engine is interrupted.
Front airbagsDescription of the front airbags
The airbag system is not a su bstitute for the seat belt!Fig. 129 Driver airbag in the steering wheel / front passenger airbag in the dash panelThe front airbag for the driver is housed in the steering wheel fig. 129 - left. The front
airbag for the front passenger is housed in the dash panel above the storage compart-
ment fig. 129 - right. The installation positions are each marked with the “AIRBAG”
logo.
The front airbag system, in combination with three-point safety belts, offers additional
protection for the head and chest area of the driver and front passenger in the event of
a frontal collision of major severity page 148.
The airbag is not a substitute for the seat belt, but is part of the complete passive
vehicle safety concept. Please note that an airbag can only offer you optimal
protection in combination with a seat belt which is fastened .
s2ug.6.book Page 147 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 Technology
164
offered must not tempt you to take greater risks than otherwise - risk of an acci-
dent!
Note
All four wheels must be fitted with the same tyres in order to achieve problem-free
operation of the ESP. Differing rolling circum ferences of the tyres can lead to an unde-
sirable reduction in the engine output.
Changes to vehicle (e.g. on engine, on th e brakes, on chassis or another combina-
tion of tyres and wheels) can influence the function of the ESP page 222, “Accesso-
ries, changes and replacement of parts”.
Electronic Differential Lock (EDL)*
The electronic differential lock prev ents an individual wheel from slip-
ping.Models fitted with ESP ar e equipped with electronic differential lock (EDL).
General
The EDL makes it much easier, and sometimes at all possible, to start off, accelerate
and climb a steep hill when the conditions of the road surface are unfavourable.
Operating principle
The EDL is activated automaticall y, that is without any action on the part of the driver.
It monitors the speeds of the driven wheels with the aid of the ABS sensors. Should
only one drive wheel begin spinning on a slippery surface there will be an appreciable
difference in the speed of the driven wheels. The EDL function brakes the slipping
wheel and the differential transmits a greate r driving force to the other driven wheel.
This control process is also accompanied by noises.
Overheating of the brakes
The EDL switches off automatica lly if unusually severe stresses exist in order to avoid
excessive heat generation in the disc brake on the wheel which is being braked. The
vehicle can continue to be driven and has the same characteristics as a vehicle not
fitted with EDL. The EDL switches on again automatically
as soon as the brake has cooled down.
EDL Off-road*
After switching on the Off-road mode page 170, EDL Off-road is activated.
EDL Off-road is matched in such a way that it assists the traction of the vehicle when
driving on an unfirm ground.
EDL is activated earlier in the Off-road mode than in the normal mode. The brake pres-
sure builts up more quickly on the slipping wheel, on one axle, as well as diagonally.
WARNING
Carefully depress the accelerator when accelerating on uniformly slippery
road surfaces, such as ice and snow. Th e driven wheels might still spin despite
the EDL and affect the stability of the vehicle - risk of an accident!
You should always adapt your style of driving to the condition of road
surface and to the traffic situation even when your vehicle is fitted with EDL.
The increased safety offered must not tempt you to take greater risks than
otherwise - risk of an accident!Note
If the ABS or ESP warning light comes on, this may also indicate a fault in the EDL.
Please have the vehicle inspected as soon as possible by a specialist garage.
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 EDL page 222, “Accesso-
ries, changes and replacement of parts”.
WARNING (continued)
s2ug.6.book Page 164 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 Technology167
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Caution
Never allow the brakes to rub by applying sl ight pressure if you do not wish to brake
the vehicle. This causes the br akes to overheat and can also result in a longer braking
distance and excessive wear.
Before negotiating a steep downhill section, please reduce your speed, shift down
into the next lower gear (manual gearbox) or select a lower driving stage (automatic
gearbox). This enables you to make full us e of the braking power of the vehicle and
reduces the strain on the brakes. Any additional braking should be done intermittently,
not continuously.Note
The brake light flashes automatically in case of an emergency braking at speeds greater
than 60 km/h or with the intervention of the ABS, which lasts longer than 1.5 seconds.
After the speed was reduced below 10 km/h or the vehicle was stopped, the brake light
stops flashing and the hazard warning light system switches on. The hazard warning
light system is switched off automatically after accelerating or driving off again.Brake boosterThe brake booster boosts the pressure which you generate with the brake pedal. The
necessary pressure is only genera ted when the engine is running.
WARNING
Never switch off the engine before the vehicle is stationary.
The brake booster only operates when the engine is running. Greater phys-
ical effort for braking is required when en gine is switched off. Because if you do
not stop as normal, this can cause an accident and severe injuries.
Antilock brake system (ABS)ABS prevents the wheels locking when braking.General
The ABS contributes significantly to enhanc ing the active safety of your vehicle.
Compared to a vehicle not fitted with the ABS brake system, you are able to retain
optimal steering ability even during a full br ake application on a slippery road surface
because the wheels do not lock up.
In general you must not expect that the braking distance will be shorter under all
circumstances as a result of the ABS. The braking distance for example on gravel and
fresh snow, when you should anyway be driv ing slowly and cautiously, will be longer.
Operating principle
The brake pressure will be reduced on a wheel which is rotating at a speed which is too
low for the speed of the vehicle and tending to lock. This control cycle is noticeable
from a pulsating movement of the brake pedal which is accompanied by noises.
This is consciously intended to provide the driver with the information that the wheels
are tending to lock (ABS control range). You must always keep the brake pedal
depressed to enable the ABS to optimally control the brake application in this braking
range. Never interrupt the application of the brakes!
ABS Off-road*
After switching on the Off-road mode page 170, ABS Off-road is activated.
ABS Off-road increases the braking power of the vehicle on an unfirm ground, as it
keeps the wheels blocked for a longer period of time when the brake is applied while
sliding. The system is only available, if the front wheels are in the straight-ahead posi-
tion.
The system operates at speeds of up to 50 km/h.
WARNING
The ABS can also not overcome the physical limits of your vehicle. Please do
not forget this, particularly when driving on icy or wet road surfaces. If the ABS
is operating within the control range, adapt your speed immediately to the
conditions of the road surface and the traffic situation. The increased safety
s2ug.6.book Page 167 Friday, April 9, 2010 2:24 PM