Operation
start it using the battery of another vehicle.
Ple
a
se observe and follow the notes on the
››› page 52, How to jump start. For the sake of the environment
Do not warm-up the engine by running the
en gine w ith the
vehicle stationary. You
should drive off as soon as you start the en-
gine. This helps the engine reach operating
temperature faster and reduces emissions. Switching off the engine
–
Stop the vehicle.
– Turn the ignition key to position ››
›
Fig. 168
1 .
Af t
er sw
itching the engine off, the radiator
fan may run on for up to 10 minutes. It is also
possible that the fan turns itself on once
more if the coolant temperature increases
due to the heat accumulated in the engine
compartment or due to its prolonged expo-
sure to solar radiation. WARNING
● Never sw it
ch the engine off until the vehi-
cle is completely stationary.
● The brake servo works only when the en-
gine is ru
nning. With the engine switched off,
more strength is needed to brake. As normal brake operation cannot be performed, risk of
acc
ident
s and serious injury may exist.
● The steering lock can be immediately
block
ed once the key is removed from the ig-
nition. The vehicle cannot be steered. Risk of
accident.
● Power-assisted steering does not work
when the engine is
off, and more strength is
needed to turn the wheel.
● If the key is removed from the ignition lock
the steerin
g lock could be engaged and vehi-
cle steering would not work. CAUTION
When the engine has been running under a
heavy lo
ad for a long period, heat can accu-
mulate in the engine compartment and cause
engine damage. For this reason, idle the en-
gine for approximately 2 minutes before
switching it off. Braking and parking
Br ak
in
g capacity and braking distance The efficiency of the brakes depends directly
on the br
ak
e p
ad wear. This wear depends to
a great extent on the conditions under which
the vehicle is operated and the way the vehi-
cle is driven. If you often drive in town, drive
short distances or have a sporty driving style,
we recommend that you have the thickness of your brake pads checked by technical serv-
ices
more frequently than recommended in
the Maintenance Programme.
If you drive with wet brakes, for example, af-
ter crossing areas of water, on days of heavy
rainfall or even after washing the car, the ef-
fect of the brakes is reduced as the brake
discs are wet or even frozen (in winter): in
this case, the brakes should be “dried” by
pressing the brake pedal several times. WARNING
Longer braking distances and faults in the
brak e sy
stem increase the risk of accidents.
● New brake pads must be run in and do not
have the c
orrect friction during the first
200 km. This reduced braking capacity may
be compensated for by pressing on the brake
pedal a little harder, which also applies when
the brake pads have to be changed further
on.
● If brakes are wet or frozen, or if you are
driving on r
oads which have been salted,
braking power may be lower than normal.
● On steep slopes, if brakes are excessively
used, they w
ill overheat. Before driving down
a long steep slope, it is advisable to reduce
speed and change down into a lower gear or
range (depending on the type of transmis-
sion). Thus, make use of engine braking and
relieve the brakes.
● Never let the brakes “drag” by applying
light pre
ssure. Continuous braking will cause156
Driving
press the brake pedal to change the selector
l ev
er fr
om position N to position D.
S - Standard driving position (Sport pro-
gramme)
When the selector lever is in position S, it will
automatically change up into a higher gear
later, and change down into a low gear, if
compared with position D. This way, it is pos-
sible to take full advantage of the engine re-
serve power, depending on the engine de-
mand, driving style and speed. The braking
effect of the engine when driving downhill is
very limited. On the instrument panel display
the selected gear is shown as well as the se-
lector lever to position S.
To select gear range S, press the lock button
on the selector lever. WARNING
● As a driv er
, you should never leave your ve-
hicle if the engine is running and a gear range
is engaged. If you have to leave your vehicle
while the engine is running, you must apply
the parking brake and put the selector lever
in position P.
● If the engine is running and if D or R is en-
gaged,
you will need to hold the car on the
foot brake. The car will creep forward as the
power transmission is not fully interrupted
even when the engine is idling.
● Never accelerate when moving the selector
lever or
you may cause an accident. ●
Never mo v
e the selector lever to R or P
when driving. Risk of accident!
● Before driving down a long, steep slope, it
is a
dvisable to reduce speed and change into
a lower gear.
● If you stop the vehicle up hill, always hold
the foot br
ake strongly depressed down to
stop it from rolling back.
● Never allow the brake to rub and do not use
the brake ped
al too often or for long periods.
Constant braking will cause the brakes to
overheat and will considerably reduce the
brake effect. This increases the braking dis-
tance and could cause the brake system to
fail.
● Never allow the car to roll down a gradient
with the ge
ar in neutral N, or in selector lever
position D, even if the engine is not running.
● If the vehicle moves with no control, an ac-
cident and seriou
s injury may occur. WARNING
Never switch the engine off until the vehicle
is s
tationary. You could lose control of your
vehicle. This could cause an accident and se-
rious injury.
● The airbags and belt tensioners do not
work when the ignition i
s switched off.
● The brake servo does not work with the en-
gine off. Y
ou need more force to stop the vehi-
cle. ●
Po w
er steering does not work when the en-
gine is not running. That is why it is much
more difficult to turn the steering wheel.
● Never remove the key from the ignition if
the vehic
le is in motion. The steering lock
could suddenly engage, and you would not be
able to steer the vehicle. CAUTION
If you allow the vehicle to move when the en-
gine i s sw
itched off or with the selector lever
in position “N”, take your foot off the acceler-
ator and wait until the engine starts idling
before returning to position “D”. Selector lever lock
Fig. 170
Automatic gearbox The selector lever lock in position P or N pre-
v
ents
g
ears from being engaged inadvertent-
ly, which would cause the vehicle to move. »
161
Technical data
Advice
Operation
Emergencies
Safety
Driving
If “tiptronic” is selected whilst the vehicle is
in motion and the aut om
atic
gearbox / DSG
automatic gearbox is in third gear and selec-
tor lever position D, “tiptronic” mode will
then also be in third gear.
Changing gears in the normal or sport pro-
gramme using the steering wheel paddle lev-
ers
If the paddle levers ››› Fig. 172 are used in
the normal or sport programme, the system
switches temporarily to “tiptronic” mode. To
exit “Tiptronic” mode again, press the right
paddle lever + towards the steering wheel
f or ap
pr
oximately one second. You will also
leave “tiptronic” mode if the paddle levers
are not moved for a certain time. Note
● The ge ar p
addle levers on the steering
wheel can be operated with the selector lever
in any position and with the vehicle in mo-
tion. Driving tips
The gearbox changes gear ratios automatical-
ly
a
s
the vehicle moves.
Starting
– Start the engine with the selector lever in
position
P or N. Driving
– Press and hold the brake pedal.
– Holding down the lock button (button on
the selector l
ever), select R or D.
– Release the lever and wait a little for the
gearbo
x to engage the gear (a slight move-
ment can be felt).
– Release the brake and press the accelerator
›››
in Selector lever positions on
p ag
e 161
.
Stopping briefly – If stopping for a short time, keep the vehi-
cle s
tationary by pressing the foot brake
hard to prevent the vehicle moving back-
wards on a slope or “creeping” forwards,
e.g. at traffic lights. The selector lever does
not need to be put into the positions P or N
for this.
– Do not press the accelerator.
Parkin
g
– Press and hold the brake pedal until the ve-
hicle c
omes to a standstill ››› in Selector
l ev
er po
sitions on page 161.
– Apply the handbrake.
– By pressing the lock button down, move
the selector l
ever to P and release the lock
button. Driving up and down hills
–
Press the selector lever from position “D”
to the right int
o the tiptronic selector gate.
– Lightly press the selector lever back to
chan
ge down.
Holding the car on a hill
– The brake must be always pressed down to
prevent
the vehicle from “rolling back-
wards” ››› in Selector lever positions on
p ag
e 161
. Do not try to prevent the vehicle
from “rolling backwards” by increasing the
engine speed while a range of gears is se-
lected.
Starting the vehicle up hills
– Apply the handbrake.
– With a selected gear, accelerate slowly and
at the same time, r
elease the handbrake.
The steeper the slope, the lower the needed
gear. This increases the braking effect of the
engine. For example, when driving down a
very steep slope in third gear. If the engine
brake effect is not enough, the vehicle will
speed up. The automatic gearbox automati-
cally changes up to prevent the engine over-
revving. Use the foot brake to reduce speed
and change into 3rd gear using Tiptronic*
››› in Selector lever positions on page 161.
Y our
v
ehicle has an automatic interlock
which prevents the selector lever from being »
163
Technical data
Advice
Operation
Emergencies
Safety
Operation
the engine. Avoid running the engine at high
s peed.
P eriodic
maintenance
Periodic maintenance work guarantees that,
before beginning a journey, you will not con-
sume more than the required amount of fuel.
A well-serviced engine gives you the benefit
of improved fuel efficiency as well as maxi-
mum reliability and an enhanced resale val-
ue.
A badly serviced engine can consume up to
10% more fuel than necessary.
Avoid short journeys
To reduce the consumption and emission of
polluting exhaust gases, the engine and the
exhaust gas filtration systems should reach
the optimum operating temperature.
With the engine cold, fuel consumption is
proportionally higher. The engine does not
warm up and fuel consumption does not nor-
malise until having driven approximately four
kilometres (2.5 miles). This is why we recom-
mend avoiding short trips whenever possi-
ble.
Maintain the correct tyre pressures
Bear in mind that keeping the tyres at an ad-
equate pressure saves fuel. If the tyre pres-
sure is just one bar (14.5 psi/100 kPa) too
low, fuel consumption can increase by as much as 5%. Due to the greater rolling resist-
ance, under
-inflation also increases tyre wear
wear and impairs handling.
The tyre pressures should always be checked
when the tyres are cold.
Do not use winter tyres all year round as they
increase fuel consumption by up to 10%.
Avoid unnecessary weight
Given that every kilo of extra weight will in-
crease the fuel consumption, it is advisable
to always check the luggage compartment to
make sure that no unnecessary loads are be-
ing transported.
A roof rack is often left in place for the sake
of convenience, even when it is no longer
needed. At a speed of 100 km/h (62 mph)
and 120 km/h (75 mph) your vehicle will use
about 12% more fuel as a result of the extra
wind resistance caused by the roof rack even
when it is not in use.
Save electricity
The engine activates the alternator, which
produces electricity. With the need for elec-
tricity, fuel consumption also increases. Be-
cause of this, always turn off electrical devi-
ces when you do not need them. Examples of
devices that use a lot of electricity are: the
blower at high speeds, the rear window heat-
ing or the seat heaters*. Note
● If y
our vehicle has Start-Stop, it is not rec-
ommended that you switch this function off.
● It is recommended that you close
the win-
dows when driving at more than 60 km/h
(37 mph)
● Do not drive with your foot resting on the
clutc
h pedal,, as the pressure can make the
plate spin, more fuel will be used and it can
burn the clutch plate lining, causing a serious
fault.
● Do not hold the car on a hill with the clutch,
use the foot
brake or hand brake, using the
latter to start. The fuel consumption will be
lower and you will prevent the clutch plate
from being damaged.
● On descents, use the engine brake, chang-
ing to the g
ear that is more suitable for the
slope. Fuel consumption will be “zero” and
the brakes will not suffer. Driving abroad
To drive abroad, the following must be taken
int
o c
on
sideration:
● For vehicles fitted with a catalytic converter
ensur
e that unleaded petrol is available for
the journey. See the chapter “Refuelling”. Au-
tomobile organisations will have information
about service station networks selling unlea-
ded fuel.
168
Operation
pressure to this wheel. The driver is made
a w
ar
e of this control process by a pulsating
of the brake pedal and audible noise. This is
a deliberate warning to the driver that one or
more of the wheels is tending to lock and the
ABS control function has intervened. In this
situation it is important to keep the brake
pedal fully depressed so the ABS can regu-
late the brake application. Do not “pump”.
If you brake hard on a slippery road surface,
the best possible control is retained as the
wheels do not lock.
However, ABS will not necessarily guarantee
shorter braking distances in all conditions.
Braking distance could even be further if you
brake on gravel or on fresh snow on a slip-
pery surface. WARNING
● The anti-lock br
ake system cannot defy the
laws of physics. Slippery and wet roads are
dangerous even with ABS! If you notice that
the ABS is working (to counteract locked
wheels under braking), you should reduce
speed immediately to suit the road and traffic
conditions. Do not let the extra safety fea-
tures tempt you into taking any risks when
driving.
● The effectiveness of ABS is also determined
by the ty
res fitted ››› page 212.
● If the running gear or brake system is modi-
fied, the effectivene
ss of the ABS could be se-
verely limited. Traction control system (ASR)*
The traction control system prevents the driv-
en wheels
fr
om spinning when the vehicle is
accelerating. This system always includes
ABS.
Description and operation of the traction
control system during acceleration (ASR
On front-wheel drive vehicles, the ASR sys-
tem intervenes, reducing engine power and
preventing the driven wheels from slipping
during acceleration. The system works in the
entire speed range in conjunction with ABS.
If a failure occurs in the ABS, the ASR will al-
so stop working.
TCS helps the car to start moving, accelerate
and climb a gradient in slippery conditions
where this may otherwise be difficult or even
impossible.
The ASR automatically switches on when the
engine is started. If necessary, it could be
connected or disconnected by means of the
Easy Connect system.
When the ASR is off, the warning lamp lights
up . The ASR should normally be left on.
Only in exceptional circumstances, when
wheel spin is required, can they be turned off
using the ESC button, for example:
● With compact temporary spare wheel.
● When using the snow chains. ●
When drivin g in deep s
now or on soft ter-
rain.
● When the vehicle is bogged-down, to free it
“by r
ocking it.”
The ASR should be switched on again as
soon as possible. WARNING
● Remember th at
not even the ASR can defy
the laws of physics. This should be kept in
mind, particularly on slippery and wet roads
and when towing a trailer.
● Always adapt your driving style to suit the
condition of the r
oads and the traffic situa-
tion. The greater safety provided by the ASR
should not encourage you to run any risks. CAUTION
● To en s
ure that the ASR works correctly,
identical tyres should be fitted on all four
wheels. Any differences in the rolling radius
of the tyres can cause the system to reduce
engine power when this is not desired.
● Any modifications made to the vehicle (for
examp
le, to the engine, brake system, run-
ning gear or to the combination of wheels
and tyres) may affect the operation of the
ABS and ASR. 172
Driver assistance systems
Electronic differential lock (XDS)* When taking a curve, the driveshaft differen-
tial
mec
hanism allows the outer wheel to turn
at a higher speed than the inner wheel. In
this way, the wheel that is turning faster (out-
er wheel) receives less drive torque than the
inner wheel. This may mean that in certain
situations the torque delivered to the inner
wheel is too high, causing the wheels to
spin. On the other hand, the outer wheel is
receiving a lower drive torque than it could
transmit. This causes an overall loss of lateral
grip on the front axle, resulting in understeer
or “lengthening” of the trajectory.
The XDS system can detect and correct this
effect via the sensors and signals of the ESC.
Via the ESC, the XDS will brake the inside
wheel and counter the excess driving torque
of that wheel. This means that the driver's
desired trajectory is much more precise.
The XDS system works in combination with
the ESC and is always active, even when ASR
traction control is disconnected or the ESC is
in Sport mode.
Brake servo The brake servo increases the pressure you
ap
p
ly
to the brake pedal. It works only when
the engine is running . If the brake servo is not functioning, e.g. due
to a malf
unction, or if the vehicle is being
towed, you will have to press the brake pedal
considerably harder to make up for the lack
of servo assistance. WARNING
The braking distance can also be affected by
ext ern
al factors.
● Never let the vehicle coast with the engine
switc
hed off. Failure to follow this instruction
could result in an accident. The braking dis-
tance is increased considerably when the
brake servo is not active.
● If the brake servo is not working, for exam-
ple when the
vehicle is being towed, you will
have to press the brake pedal considerably
harder than normal. Start-Stop System*
D e
s
cription and operation The Start-Stop function stops the engine
when the
v
ehic
le is stopped and starts it au-
tomatically when required.
Vehicles with a manual gearbox
– When the vehicle is stopped, put it into
neutral and r
elease the clutch pedal. The
engine will switch off. The warning lamp will appear on the instrument panel dis-
pla
y.
– When the clutch pedal is pressed the en-
gine wil
l start up again. The warning lamp
will switch off.
Vehicles with an automatic gearbox – Use the foot brake to bring the vehicle to a
stop and k
eep the brake pedal pressed
down with your foot. The engine will switch
off. The warning lamp will appear in the
display.
– When you take your foot off the brake pedal
the engine wi
ll start up again. The warning
lamp will switch off.
Start-Stop function conditions
● The driver seat belt must be buckled.
● The bonnet must be closed.
● The engine must be at operating tempera-
ture.
● The s
teering wheel must be straight.
● The vehicle must be on flat ground.
● The vehicle must not be in reverse.
● A trailer must not be connected.
● The temperature of the interior must be
within the comf
ort limits (A/C button should
be sel ect
ed).
● The w
indscreen de-mist function must be
off. »
173
Technical data
Advice
Operation
Emergencies
Safety
Operation
● If in an inc
r
ease in airflow is not requested.
● The temperature must not be set to HI or
LO .
● The driver door must be closed.
● The diesel particulate filter must not be in
reg
eneration mode, for diesel engines.
● The battery charge must not be low for the
next s
tart.
● Battery temperature must be between -1°C
(+30°F) and +55°C (+131°F).
Star
t-Stop function interruption
In the following situations, the Start-Stop
function will be interrupted and the engine
will automatically start:
● The vehicle starts moving.
● The brake pedal is pressed several times in
a row
.
● The battery has been discharged excessive-
ly.
● The St
art-Stop System is manually deacti-
vated.
● The w
indscreen de-mist function is turned
on.
● The temperature of the interior exceeds the
comfor
t limits ( A/C button).
● If the airflow is increased by more than 3
pr e
s
ses.
● Temperature setting HI or LO is sel
ected.●
The engine coo
lant temperature is insuffi-
cient.
● The alternator is faulty, for example the V-
belt ha
s ruptured.
● If any of the conditions described in the
previou
s section are not fulfilled.
When the engine is turned off by the Start-
Stop function, this is displayed on the instru-
ment panel.
If the Start-Stop system is not switched on,
the warning lamp will appear on the instru-
ment panel. WARNING
Never allow the vehicle to move with the en-
gine off f or an
y reason. You could lose control
of your vehicle. This could cause an accident
and serious injury.
● The brake servo does not work with the en-
gine off. Y
ou need more force to stop the vehi-
cle.
● Power steering does not work when the en-
gine is not
running. That is why it is much
more difficult to turn the steering wheel.
● Turn off the Start-Stop system when driving
through wat
er (fording streams, etc.). Note
● For v
ehicles with the Start-Stop function
and a manual gearbox, when the engine is
started, the clutch must be pressed. ●
When the condition s
for the Start-Stop
function are not fulfilled, the instrument pan-
el displays the Start-Stop indicator dimmed.
● If the steering wheel is turned more than
270°, it wi
ll not be possible to start the vehi-
cle again. To start the vehicle, straighten the
steering wheel so that it is turned less than
270°.
● There are different versions of the dash
panel; the dis
play of indications on the
screen may differ. Activating and deactivating the Start-
St
op f
u
nction Fig. 174
The Start-Stop function button. Every time the ignition is switched on, the
St
ar
t
-Stop function is automatically activa-
ted.
174
Driver assistance systems
Manually deactivating the Start-Stop func-
tion
– Press the
› ››
Fig. 174
b utton located on
the centre console. When the Start-Stop
function is switched off, the warning lamp
comes on.
– If the Start-Stop function is operating then
the engine st
arts immediately.
Switching the Start-Stop function on manual-
ly – Press the
› ›
› Fig. 174
button located on
the centre console. The warning lamp will
switch off.
Tiredness detection (break rec-
ommendation)* Introduction
›› ›
table on page 2
The Tiredness detection informs the driver
when their driving behaviour shows signs of
fatigue. WARNING
Do not let the comfort afforded by the Tired-
nes s
detection system tempt you into taking
any risks when driving. Take regular breaks, sufficient in length when making long jour-
neys.
●
The driv er a
lways assumes the responsibil-
ity of driv
ing to their full capacity.
● Never drive if you are tired.
● The system does not detect the tiredness of
the driver in al
l circumstances. Consult the in-
formation in the section ››› page 176, System
limitations.
● In some situations, the system may incor-
rectly int
erpret an intended driving manoeu-
vre as driver tiredness.
● No warning is given in the event of the ef-
fect c
alled microsleep!
● Please observe the indications on the in-
strument p
anel and act as is necessary. Note
● Tiredne s
s detection has been developed for
driving on motorways and well paved roads
only.
● If there is a fault in the system, have it
check
ed by a specialised workshop. Function and operation
Fig. 175
On the instrument panel display:
tir edne
s
s detection symbol. Tiredness detection determines the driving
beh
av
iour of
the driver when starting a jour-
ney, making a calculation of tiredness. This is
constantly compared with the current driving
behaviour. If the system detects that the driv-
er is tired, an audible warning is given with a
sound and an optic warning is shown with a
symbol and complementary message on the
instrument panel display ››› Fig. 175. The
message on the instrument panel display is
shown for approximately 5 seconds, and de-
pending on the case, is repeated. The system
stores the last message displayed.
The message on the instrument panel display
can be switched off by pressing the button on the windscreen wiper lever or the
b
utt
on on the multi function steering
wheel
›
›
› page 25. »
175
Technical data
Advice
Operation
Emergencies
Safety