Starting-off and Driving
124
Activating The parking aid is activated when the
reverse gear
is engaged and the ignition is
turned on or by pressing the button
⇒page 123, fig. 139
- the symbol
lights up
in the button. The activation is confir
med by a brief acknowledgement signal.
Deactivating The parking aid is deactivated after pressing the button°
⇒page 123, fig. 139
or
at a speed of more than 10 km/h - the symbol
in the button is no longer illumi-
nated.
WARNING
•
The parking aid is not a substitute fo
r the driver paying proper attention
and it is always the driver's responsibility to take care when reversing the vehicle or carrying ou
t 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 parking aid.
Note
•
Only the front parking aid operates if yo
u are towing a trailer (applies only to
models which feature a factor
y-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, th
is indicates a system fault. The fault is
confirmed additionally when the symbol
flashes in the button
⇒page 123,
fig. 139
. 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 se
lector lever of the automatic gearbox is
in the position , warning signal indicates interruption (vehicle can no longer move).Park Assist*Description and important informationThe park assist assists you when parkin
g in a suitable parallel parking place
between two vehicles or behind a vehicle. The park assist automatically searches fo
r suitable parking spaces after switching
on the ignition and when driving up to 30 km/h. During the parking procedure the park as
sist only takes over the steering move-
ments, the pedals continue to
be operated by the driver.
Function of the system is based on:•
Length and depth measurement of
the parking spaces when driving
•
Evaluation of the size
of the parking space
•
Definition of the correct position of the vehicle for parking
•
Calculating the line on which the vehi
cle drives backwards into the parking
place•
Actuation of the steering force assistan
ce, automatic spinning of the wheels of
the front axle when parking.
WARNING
The park assist does not take away the responsability from the driver when parking.•
Pay particular attention to small chil
dren and animals as they would not
be recognised by the se
nsors of the parking aid.
•
Under certain circumstances, surfaces of certain objects and types of
clothing cannot reflect the signal of th
e park assist or th
e parking aid. Thus,
AP
s2dk.1.book Page 124 Wednesday, April 8, 2009 12:23 PM
Starting-off and Driving
125
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
these objects or people who wear such clothing are not recognised by the sensors of the parking aid.•
The external sound source of the park assist and the parking aid can be
disruptively influenced and under unfavourable conditions, objects or people cannot be recognised by the sensors of the parking aid.
Caution
•
If other vehicles are parked
behind or on the kurb, the park assist guides your
vehicle beyond the kurb or onto it. Make sure that the wheels or the wheel rims of your vehicle are not damaged and
if necessary intervene in time.
•
You should satisfy yourself before parkin
g 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 or structures of certain objects such as
wire mesh fences, powder snow etc...,
cannot be recognised by the system.
•
The evaluation of the parking place and the parking procedure depends on the
circumference of the wheels. The system does
not function correctly if your vehicle
is mounted with wheels of non-permissible size, snow chains or a temporary spare wheel (in order to reach the nearest workshop). If the tyres other than those excepted by the manufacturer are mounted,
the resulting position of the vehicle in
the parking place can differ slightly. This
can be avoided throug
h new calibration of
the system in a specialist garage.•
The accuracy of the evaluation for the
parking place can be influenced by the
incorrectly determined outside temperature if
the later is influenced by the thermal
radiation of the engine i.e for stop and go in a traffic jam.•
In order to avoid damaging the sensor
s while cleaning with high-pressure
cleaners or steam jets, the sensors must on
ly be directly sprayed for short periods
while a minimum distance of 10 cm must be observed.
Note
•
A component of the park assist is
the front and rear parking aid*.
•
The electronic stability programme (ESP)
must always be switched on for the
parking procedure.•
Only the front parking aid operates if you are towing a trailer (applies only to
models which feature a factory-fitted towing device*). This is why it is not possible to park backwards with the help of th
e park assist when
towing a trailer.
•
The sensors must be kept clean and free of ice to enable the parking aid to
operate properly.Switch on display of the park assist in the information display*
WARNING (continued)
Fig. 141 Switch on display of the park assist in the infor-mation displayFig. 142 Information display: Finding a suitable parking place
s2dk.1.book Page 125 Wednesday, April 8, 2009 12:23 PM
Starting-off and Driving
127
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
– As soon as the following message is indicated in the information
display*:
Steering intervention! M
onitor area around veh.!
let go
of the steering wheel, the steering will be taken over by the system.
– Observe the surroundings and drive backwards with a speed of
maximum 7 km/h, at the same time operate the pedal.
– End the parking procedure from a distance on the basis of the infor-
mation of the system.
As soon as the parking procedure is completed, an audible signal sounds and in the information display* the following message appears:
Steering intervention
finished! Please take over steering!
.
If your vehicle is not proper
ly parked, the position of th
e wheels is corrected by the
system after disengaging the reverse gear when your vehicle is stationary, so that you can align the vehicle yourself during
a forward movement after taking over the
steering. Switch off park assist The park assist switches off during
one of the following occurences:
•
A speed of 30 km/h exceeded
•
A speed of 7 km/h exceeded during the parking procedure
•
A time limit of 180 seconds exceeded
for engaging the reverse gear after
switching on the park assist.•
A time limit of 180 seconds exceeded for the parking procedure
•
The button pressed
for the park assist
•
Parking aid activated
•
Switch off ESP
•
Intervention of the driver in the automatic steering procedure (stop the steering
wheel)•
Disengage reverse gear or take out selector lever* out of the position
R during
the parking procedure. Further warning and information texts of the park assist in the information display*:
Park Assist cancelled! The parking procedure has ended or after sw
itching on the ignition, the vehicle has
not been driven above 10 km/h. Park Assist: Speed too high! Reduce the speed below 30 km/h. Driver steering intervention!
Please take over steering!
The parking procedure is ended through driver intervention. Park Assist cancelled! ESP switched off! The parking procedure cannot be carried ou
t because the ESP system is switched
off. ESP switched off! Please take over steering! The parking procedure was ended because th
e ESP system was switched off during
the parking procedure. Park Assist cancelled! Trailer The parking procedure is not possible becaus
e the trailer is hitched and a plug is
inserted in the socket of the towing device. Park Assist cancelled! Time limit exceeded! The parking procedure was not started because a time limit of 180 seconds for engaging the reverse gear was exceeded. Time limit exceeded! Please take over steering! The parking procedure was ended because a
time limit of 180 seconds for parking
was exceeded. Park Assist cancelled! System error The parking procedure is not possible because a fault exists on the vehicle. Have the fault rectified by a specialist workshop. Park Assist defective! Service now! The parking procedure is not possible because
a fault exists on the park assist. Have
the fault rectified by a specialist workshop.
s2dk.1.book Page 127 Wednesday, April 8, 2009 12:23 PM
Automatic gearbox DSG*
133
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
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 vehicl
e 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 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 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 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 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 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 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 ot
herwise 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 othe
r person opens the
bonnet and starts
working on the engine when it is runn
ing - risk of accident! Pay particular
attention to the warning instructions.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 order to move the selector lever out of this position. The warning light
⇒page 33 lights up in the instrument cluster
as a reminder for the driver when the selector lever is in position
P and
N.
A time delay element ensures that the sele
ctor 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 select
or 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 selector lever is in position
P. If the ignition key is withdrawn, the selector lever is blocked in
position
P.
WARNING (continued)
s2dk.1.book Page 133 Wednesday, April 8, 2009 12:23 PM
Automatic gearbox DSG*
136
– If the rocker switches or are not pressed for some time, the
manual shifting switches off. You can also switch off the temporary switch over to manual shifting by
pressing the right rocker switch
for more than 1 second.
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.
Selector lever-emergency unlocking (DSG)
In case of interruption of the power
supply (e.g. flat vehicle battery, defec-
tive fuse) or defect of the selector
lever lock, the sele
ctor 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. – 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
⇒
fig. 151
to the left.
– Simultaneously press the shiftlock bu
tton in the handle of the selector
lever in the position
N10).
Tow-starting and towing vehicle Tow-starting a vehicle It is not possible to tow-start vehi
cles fitted with automatic gearbox
⇒page 252.
you can use jump-start cables connected
to the battery of another vehicle for
starting your car if the vehicle battery is flat
⇒page 250.
Towing a vehicle Please pay attention to the following info
rmation if it comes necessary to tow-in
your car
⇒page 252.
-
+
+
Fig. 151 Selector lever- emergency unlocking
10)If the selector lever is moved again into the position
P, it is once again blocked.
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Seat belts
168
Seat beltsWhy seat belts?It is a proven fact that seat belt
s offer good protection in accidents
⇒fig. 162
. Thus
wearing a seat belt is a legal requirement in most countries. Seat belts which have been correctly fastened and adjusted hold the occupants of the car in the correc
t seated position
⇒fig. 162
. The belts reduce the kinetic energy
(energy of motion) to a considerable extent. They also prevent uncontrolled move-ments which, in turn, may well result in severe injuries. The occupants of a vehicle who have fastened
and correctly adjusted their seat belt,
profit to a major extent from the fact that
the kinetic energy is optimally absorbed
by the belts. The structure of the front end of the vehicle and other passive safety measures, such as the airbag system, also
contribute to reducing the kinetic energy.
The energy produced is thus absorbed and there is less risk of injury. Accident statistics prove that seat belts
which are fastened and properly adjusted
reduce the risk of an injury and enhance the chance of survival in a major accident ⇒ page 169.
It is important that you pay attention to
safety measures, particularly when trans-
porting children in the vehicle
⇒page 185, “What you should know about trans-
porting children!”.
WARNING
•
Fasten your seat belt each time before setting off, also when driving in
town! This also applies to the people seated at the rear - risk of injury!•
Expectant women must also always wear
a seat belt. This is the only way
of ensuring optimal protection for the unborn child
⇒page 170, “Fastening
three-point seat belts”.•
It is important for the belt webbing to
be properly routed if the seat belts
are to offer the maximum protection. You can see a description of how safety belts should be fitted pr
operly on the next pages.
Note
Please comply with any differing legal
requirements when using the seat belts.
Fig. 162 Driver wearing seat belt
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Intelligent Technology
196
WARNING
Even with this function the vehicle ca
nnot steer itself! The
driver is further-
more responsible for the steering of the vehicle!BrakesWhat has a negative effect on braking efficiency?Wear-and-tear Wear-and-tear to the brake pads is greatly dependent on the operating conditions of the vehicle and your style of driving. Particularly if you drive a great deal in towns and over short distances or if you adopt a
sporty style of driving, it may be neces-
sary to have the thickness of the brake
pads inspected at a specialist garage
between the service inspections. Wet roads or road salt There may be a certain delay before the br
akes take full effect under certain condi-
tions such as when driving through water,
during heavy rain
showers or after the
vehicle has been washed in
an automatic vehicle wash, since the brake discs and
brake pads may be moist or even have a
coating of ice on them in winter. You
should dry the brakes as soon as possib
le by applying and releasing the brakes
several times. There also may be a certain delay before the
full braking efficiency is available when
driving on roads which have been treated wi
th road salt if yo
u have not used the
brakes for some considerable time beforeha
nd. The layer of salt on the brake discs
and brake pads must first be rubb
ed off when you apply the brakes.
Corrosion Corrosion on the brake discs and dirt on th
e bake pads occur if
the vehicle has been
parked for a long period and if you do
not make much use of the braking system.
We recommend cleaning the brake discs by
firmly applying the brakes at a fairly
high speed if you do not make much use of the braking system or if surface corro- sion is present
⇒
.
Faults in the brake surface If you notice that the braking distance
has suddenly become longer and that the
brake pedal can be depressed further, it is
possible that a brake circuit of the dual-
circuit brake system has failed. Drive, in such cases, to the nearest specialist garage without delay in order to have the problem rectified. Drive at a reduced speed while on your way to the dealer and adapt your style of driving to the higher brake pedal pressure required. Low brake fluid level An insufficient level of brake fluid may result in problems in the brake system. The level of the brake fluid is monitored electronically
⇒page 41, “Brake system
”.
WARNING
•
Only apply the brakes for the purpos
e of drying and cleaning the brake
discs if the traffic conditions permit this. Do not place any other road users in jeopardy.•
When retrospectively mounting a front
spoiler, solid wheel hubs etc. one
must ensure that the air supply to the front wheel brakes is not reduced otherwise the braking sy
stem could run too hot.
•
Allow for the fact that new brake pads
do not achieve th
eir full braking
efficiency until approximately 200 kilo
metres. New brake pads must be first
“run in” before they develop their optimal friction force. You can, however, compensate for this slightly reduced
braking force by increasing the pres-
sure on the brake pedal. This guidelin
e also applies to any new brake pads
installed at a future date.
Caution
•
Never allow the brakes to ru
b by applying slig
ht pressure if you do not wish to
brake the vehicle. This causes the brakes to overheat and can also result in a longer braking distance and excessive wear.•
Before negotiating a steep downhill sect
ion, please reduce your speed, shift
down into the next lower gear (manual ge
arbox) or select a lower driving stage
(automatic gearbox). This enables you to make full use of the braking power of the
s2dk.1.book Page 196 Wednesday, April 8, 2009 12:23 PM
Intelligent Technology
198
Brake Assist*During a severe brake application (e.g. if a hazard exists), the Brake Assist increases the braking force and thus makes it possible to rapidly produce the pressure required in the brake system. The majority of drivers do
apply the brakes in good time in dangerous situations,
but do not depress the brake pedal with su
fficient pressure. Consequently, it is not
possible for the car to achieve its maxi
mum deceleration and the car covers a
greater distance than necessary. The Brake Assist is activated by the very quick operation of the brake pedal. In such cases, a much greater braking pressure ex
ists than during a normal brake applica-
tion. This makes it possible, even with a relatively low resistance of the brake pedal, to produce an adequate pressure in the brake system in the shortest possible time, which is required for maximum deceleration of the car. You must apply the brake pedal firmly and hold it in
this position in order to achieve the shortest possible
braking distance. The Brake Assist is able to help you achieve a shorter braking distance in emergency situations by rapidly producing the pressure
required in the brake system. It fully
exploits the attributes of the ABS. After you release the brake pedal, the function of the Brake Assist is automatically switched off and the brakes operate in the normal way. The Brake Assist is part of the ESP system. If a fault occurs in the ESP, the Brake Assist function is also not available.
Further information on the ESP
⇒page 193.
WARNING
•
The Brake Assist is also not able to overcome the physical limits of your
car in terms of the braking distance required.•
Adapt your speed to the conditions of the road surface and to the traffic
situation.•
The increased safety offered by the Brake Assist must not tempt you to
take a greater safety risk than otherwise.
Uphill-Start
off-Assist*
The uphill-start off-assist makes it much easier to start off on steep hills. The system assists a start off by holding the brake pr
essure produced by the brake pedal actu-
ation for approx. 2 seconds after releasing the brake pedal. The driver can therefore move his foot from the brake pedal to th
e accelerator pedal and start off on the
slope, without having to actuate the hand
brake. The brake pressure drops gradually
the more you operate the accelerator pedal. If the vehicle does not start off within 2 seconds, it starts to roll back. The uphill-start off-assist is active in the ev
ent of a 5% slope, if the vehicle door is
closed. It is alwa
ys active on slopes when in forward or reverse start off. When
driving downhill, it is inactive.Electromechanical power steeringThe power steering enables you to steer
the vehicle with le
ss physical force.
With the electromechanical power steering, the steering assist is automatically adapted to the speed and to the steering angle. It is still possible to fully steer the vehicle if the power steering fails or if the engine is not running (vehicle being towed in). The
only difference is that greater physical
effort is required. If there is a fault in the power steering, the warning light
or lights up in the
instrument cluster
⇒page 36.
WARNING
Contact your specialist
garage if the power steering is defective.
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