Automatic gearbox
130
Shifting up gears
– One-touch forward of the selector lever (in the Tiptronic position)
⇒ page 129, fig. 141 .
Shifting down gears
– One-touch back of the selector lever (in the Tiptronic position) .
It is possible to switch over to manual both when the car is stationary and also when
driving.
When you accelerate, the gearbox shifts up automatically in gears 1, 2, 3, 4 and 5
into the next higher gear just before the maximum permissible engine speed is
reached.
If you select a lower gear, the automatic gearbox does not shift down until there is
no risk of the engine overrevving. (Does not apply for the shifting from 2nd to 1st
gear.)
If you operate the kickdown function, the ge arbox 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.
It is possible to continue to move the se lector lever into all the positions. In the
positions D and S the gearbox remains engaged in the 3rd gear. It is also possible to
continue to engage reverse gear in the position R.
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.
Selector lever-emergency unlocking
In case of interruption of the power supply (e.g. flat vehicle battery, defec-
tive fuse) or defect of the selector lever lock, the selector lever can no
longer be shifted from the position P in the normal way and the vehicle
can no longer be moved. The selector lever must be unlocked in case of
emergency.
– Apply the handbrake firmly.
– Open the stowage compartment in fr ont centre console* or the front
ashtray.
– Carefully pull up the front left and right cover.
– Pull up rear cover.
– Press with a narrow object (e.g. ignition key) the yellow plastic hoop -arrow- to the left.
– Simultaneously press the shiftlock bu tton in the handle of the selector
lever in the position N
7).
A+
A-
7)If the selector lever is moved again into the position P, it is once again blocked.
Fig. 143 Selector lever-
emergency unlocking
NKO A5 20 MR08.book Page 130 Wednesday, April 11, 2007 2:54 PM
Automatic gearbox DSG
132
Automatic gearbox DSG
Automatic gearbox DSG*
Introduction
Your car is equipped with an automatic gearbox DSG. The abbr eviation DSG means
Direct shift gearbox (Direct shift gearbox).
Two independent clutches are needed for the power transmission between the
engine and the gearbox. These replace th e torque converter of the conventional
automatic gearbox. Their shifting is matche d in such a way that there are no jerks
when shifting the gear and the power transm ission of the engine to the front wheels
is not interrupted.
Information for driving with the automatic gearbox DSG
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 136.
Starting-off and Driving
– Depress the brake pedal and hold 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 133,
and then release the Shiftlock button.
– Release the brake pedal and depress the accelerator ⇒. Stopping for a short time
– The selector lever position
N does not have to be selected when stop-
ping just for a short time, such as at a cross roads. It is sufficient to hold
the vehicle stationary using the foot brake. The engine can, however,
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
⇒ page 118. 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 position N is selected by accident wh ile driving it is first neces-
sary to release pressure on the accelerato r 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 acci-
dent!
•Never move the selector lever into position R or P when driving - risk of
an accident!
NKO A5 20 MR08.book Page 132 Wednesday, April 11, 2007 2:54 PM
Automatic gearbox DSG133
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
•If you are stopping at a hill (downhill section), never try to hold the car
stationary with the gear engaged by me ans 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 gear box DSG is equipped with an overload
protection. If you make use of the uphill f unction on a vehicle which is stationary or
driving slowly uphill, it will result in an increase of thermal stress of the clutches.
•An overheating of the clutches can be detected by the flashing of the selector
level indicator and the “jerk” of the clut ches, finally the clutches are opened. The
power transmission from the engine to the front wheels is interrupted and as a
result of this the vehicle ca n no longer be driven. If the clutch opens automatically,
depress the brake pedal, wait a few seconds and only then continue driving.
Selector lever positions
The selector lever position you have engaged is shown in the information display
of the instrument cluster with the co rresponding gear symbol highlighted
⇒ fig. 145 . In the positions D and S the gear you have already engaged will be addi-
tionally displayed on the display.
P - Parklock
The driven wheels are locked me chanically in this position.
The Parklock must only be engage d when the vehicle is stationary ⇒.
If you wish to move the select or lever into or out of this position, you must press the
Shiftlock button in the handle of the select or lever and at the same time depress the
brake pedal.
If the battery is used, the selector le ver cannot be moved out of the position P
⇒ page 137.
R - Reverse
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 and the selector lever is in position R, the reverse
lights will come on.
WARNING (continued)
Fig. 144 Selector lever
Fig. 145 Information
display: Selector lever
positions
NKO A5 20 MR08.book Page 133 Wednesday, April 11, 2007 2:54 PM
Automatic gearbox DSG
134
N - 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 selector lever out of the position N into the position
D , with the ignition switched on, on a vehicle travelling at less than 5 km/hour or on
a stationary vehicle.
The brake pedal must be depressed (if the le ver is in its position for longer than 2
seconds) in order to move the selector lever out of the position N into the position
R , with the ignition switched on, on a vehicle travelling at less than 5 km/hour or on
a stationary vehicle.
D - Drive, 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 the selector lever into
position D from N when the vehicle is travelling at less than 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 136 for
a short time in order to adapt the gearbox ratios manually to the driving situations.
S - Position for sporty style of driving
Shifting up later into a higher gear ma kes it possible to fully exploit the power
potential of the engine. The gearbox also th en shifts down at higher engine speeds
as in the position 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.
WARNING
•Never move the selector lever into position R or P when driving - risk of
an accident!
•When the engine is running and the ve hicle 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 inter-
rupted, 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 drive position is engaged when the
car is stationary. The vehicle would otherwise immediately start off - also
when the handbrake is firmly a pplied - 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 210, “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 31 lights up in the instrument cluster
as a reminder for the driver when the selector lever is in position P and N:
In addition, the symbol
for the automatic selector lever lock in the shift gate
lights up.
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 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 th e 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 sele ctor lever prevents certain selector lever
positions being engaged inadvertently. The selector lever lock is cancelled when
you press the Shiftlock button.
WARNING (continued)
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Automatic gearbox DSG135
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
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.
Depressing the accelerator pe dal allows the kickdown function to be activated in
the desired driving program. This function has precedence over the driving
programme and serves for maximum accelera tion of the vehicle when exploiting
the maximum power potential of the engine without 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 highes t gear until the engine has reached its
maximum revolutions for this gear range.
WARNING
Please note that using the kickdown fu nction 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 auto matically 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 freq uent changes in speed, exploiting the top speed of the car or depressing the a
ccelerator pedal (kickdown function), will
cause the gearbox to switch over to this st yle 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 depressing the accelerator rapidly. The
gearbox shifts down into a lower gear matc hing the speed of the car and this allows
you to accelerate rapidly (e.g. when ov ertaking) without having to depress the
accelerator pedal fully into the kickdown range. The original programme will be
reactivated to match your particular style 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 and 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.
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Automatic gearbox DSG
136
Tiptronic
The Tiptronic allows the driver to also shift gears manually.
Switching over to manual shifting
– Push the selector lever to the right out of position D. As soon as the
gearbox has switched over, 6 5 4 3 2 1 appears in the display, with the
gear engaged being highlighted ⇒fig. 147 .
Shifting up gears
– One-touch forward of the selector lever (in the Tiptronic position)
⇒ fig. 146 . Shifting down gears
– One-touch back of the selector lever (in the Tiptronic position) .
It is possible to switch over to manual both when the car is stationary and also when
driving.
When you accelerate, the gearbox shifts up
automatically in gears 1, 2, 3, 4 and 5
into the next higher gear just before the maximum permissible engine speed is
reached.
If you select a lower gear, the automatic gearbox does not shift down until there is
no risk of the engine overrevving. (Does not apply for the shifting from 2nd to 1st
gear.)
If you operate the kickdown function, the ge arbox 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 have 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.
Fig. 146 Selector lever:
Manual shifting of gears
Fig. 147 Information
display: Manual shifting
of gears
A+
A-
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Airbag system
164
When are the airbags deployed?
The airbag system is designed in such a way that the driver airbag and the front
passenger airbag* are deployed in the event of a frontal collision of major severity.
In the case of a violent side crash , the side airbag* on the side of the car at which
the collision occurs, is deployed together with the head airbag*.
In certain accident situations it is possible that both the front as well as the side
airbags and the relevant head airbag are deployed at the same time.
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 , for example, is played by factors such as
the type of object against which the vehicle impacts (hard, soft), the angle of impact,
the vehicle speed 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 meas-
ured during the collision remains below the prescribed reference values specified
in the control unit, the airbags are not 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 off,
•a minor frontal collision,
•a minor side collision,
•a rear-end collision,
•rollover.
Note
•A grey white, non harmful gas is released when airbag is inflated. This is
perfectly normal and is not an indi cation of a fire in the vehicle.
•The dash panel must be replaced afte r the front passenger airbag has been
deployed.
•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 light is switched on,
− All the doors are unlocked,
− the fuel supply to the engine is interrupted.
NKO A5 20 MR08.book Page 164 Wednesday, April 11, 2007 2:54 PM
Intelligent Technology181
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Driving Tips
Intelligent Technology
Electronic stability programme (ESP)*
General
General
The ESP aids you maintain control of your vehicle in situations in borderline driving
situations such as when negotiating a curve too fast. The risk of skidding is reduced
and your car thus offers greater driving stability depending on the conditions of the
road surface. This occurs at all speeds.
The following systems are integrated into the electronic stability programme:
•Electronic Differential Lock (EDL),
•Traction control system (TCS),
•Driver-steering recommendation,
•Antilock brake system (ABS),
•Brake Assist,
•Uphill-Start off-Assist. 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
processes additional measurement data which are supplied by highly sensitive
sensors: the rotational velocity of the vehi
cle about its vertical axis, the lateral accel-
eration of the vehicle, the brakin g pressure and the steering angle.
The direction which the driver wishes to ta ke is determined based on the steering
angle and the speed of the vehicle and is constantly compared with the actual
behaviour of the vehicle. If differences exis t, such as the car beginning to skid, the
ESP will automatically brake the appropriate wheel.
The car is stabilised again by the forces which 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 re ar wheel of a vehicle which tends to under-
steer (tendency to shift out of the curve). This braking control cycle is accompanied
by noises.
The ESP operates in combination with the ABS ⇒page 185, “Antilock brake system
(ABS)”. If there is a fault in the ABS system, the ESP also does not operate.
The ESP warning light ⇒page 32 lights up in the instrument cluster when there is a
fault on the ESP.
Switching off
You can switch the ESP off and on again as you wish, by pressing the button
⇒ fig. 184 . The ESP warning light ⇒page 32 lights up in the instrument cluster
when the ESP is switched off.
The ESP 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:
Fig. 184 ESP switch
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