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Do NOT stop the vehicle, drive in reverse or
switch off the engine before you are out of
the water.
- Bear in mind that waves created by oncom
ing traffic could exceed the permissible
wading depth of your vehicle.
- Avoid driving through salt water (corrosion).
How to improve economy and minimise
pollution
Fuel economy, environmental impact and wear
on the engine, brakes and tyres depend largely
on the way you drive the vehicle. By adopting an
economical driving style and anticipating the
traffic situation ahead, you can reduce fuel con
sumption by 10-15%. The following section gives
you some tips on lessening the impact on the en
vironment and reducing your operating costs at
the same time.
Anticipate well in advance
A car uses most fuel when accelerating. If you an
ticipate hazards and speed changes well in ad
vance, you will need to brake less and thus accel
erate less. Wherever possible, let the car slow
down gradually with a gear engaged, for in
stance when you can see that the next traffic
lights are red.
Change gear early to save fuel
An effective way of saving fuel is to change up
quickly through the gears. Running the engine at
high rpm in the lower gears uses an unnecessary
amount of fuel. Press the accelerator slowly and
avoid using the "kick-down" feature.
Avoid driving at high speed
Avoid travelling at top speed. Fuel consumption,
exhaust emissions and noise levels all increase
very rapidly at higher speeds. Driving at moder
ate speeds will help to save fuel.
Do not let the engine idle for longer than
necessary
Engine idling periods are automatically reduced
on vehicles with start/stop system*. On vehicles
without start/stop system*, it is worthwhile
switching off the engine at level crossings, for in- Driving
stance, or at traffic lights with a long red phase.
The fuel saved after only 30 -40 seconds is
greater than the amount of fuel needed to re
start the engine.
The engine takes a very long time to warm up
when it is running at idling speed. Mechanical
wear and pollutant emissions are also especially
high during this initial warm-up phase. It is
therefore best to drive off immediately after
starting the engine. Avoid running the engine at
high speed.
Regular servicing
Regular servicing can establish a basis for good
fuel economy before you start driving. A well
serviced engine gives you the benefit of im
proved fuel efficiency as well as maximum relia
bility and an enhanced resale value.
A poorly maintained engine can consume up to
ten percent more fuel than necessary.
Check the oil level when filling the tank. Oil con
sumption depends to a great extent on the en
gine load and engine speed. It is quite normal
that the oil consumption of a new engine only
reaches its lowest level after a certain mileage.
This means that the oil consumption can only be
properly assessed after about 5,000 km.
Avoid short trips
The engine and emission control system need to
reach their proper working temperature in order
to minimise fuel consumption and emissions.
A cold engine uses disproportionately more fuel.
The engine only reaches its working temperature
after about four kilometres, when fuel consump
tion will return to a normal level.
Check tyre pressures
Always make sure the tyres are inflated to the
correct tyre pressures to save fuel. If the tyre
pressures are just 0.5 bar too low, this can in
crease the fuel consumption by as much as 5 %.
Due to the greater rolling resistance, under-infla
tion also increases tyre wear and impairs han
dling.
67

Downloaded from www.Manualslib.com manuals search engine Driving
The tyre pressures should always be checked
when the tyres are cold.
Do not use winter tyres all through the year; they
will increase fuel consumption by up to 10 %.
Avoid carrying unnecessary loads
Every kilo of extra weight will increase the fuel
consumption, so it is worth checking the luggage
compartment occasionally to make sure that no
unnecessary loads are being transported.
Save electrical energy
The engine drives the alternator to generate elec
tricity. This means that fuel consumption rises
when more power is required for electrical equip
ment. Switch off electrical equipment when it is
not needed. Electrical equipment which uses a
lot of electricity includes the blower (at a high
setting), the rear window heating and the seat
heating*.
Steering Adjusting the steering wheel position
The height and reach of the steering wheel can
be adjusted as required to suit the driver.
Fig. 71 Lever on steering column
� Press the lever¢ Fig. 71 down ¢ .&, .
� Move
the steering wheel to the desired posi
tion.
� Then push the lever towards the steering col
umn until the catch engages.
68 A
WARNING
- Never adjust the position of the steering
wheel when the vehicle is moving - this
could cause an accident.
- Press the lever upwards so it is secure and
so that the position of the steering wheel
cannot shift unexpectedly while the vehicle
is moving -risk of accident!
Starting and stopping
the engine
Starting the engine -
You can use the !START
ENGINE STOP!
button to
switch on the ignition and start the engine.
Fig. 72 Centre console: START ENGINE STOP button
Applies to TT RS
Fig. 73 Steering wheel: START ENGINE STOP
Switching the ignition on/off
� To switch the ignition on/off, press the
!START ENGINE STOP!
button without pressing
the clutch pedal (manual gearbox) or brake
pedal (automatic gearbox). Diesel engines are
preheated when the ignition is switched on.�

Downloaded from www.Manualslib.com manuals search engine Starting
the engine
� Manual gearbox: Press the clutch pedal all the
way down and move the gear Lever into neutral.
� Vehicles with automatic gearbox: Press the
brake pedal and move the selector Lever to po
sition P or N ¢ ,&..
� Press the ....,1s=
T_A_R _T_E_
N_G_I_N_ E-ST_O_PI
button. The
engine should start.
� Diesel engines can take a few seconds Longer
than usual to start on cold days. Please keep
your foot on the clutch pedal (manual gearbox)
or brake pedal (automatic gearbox) until the
engine starts. The indicator Lamp IJ Lights up
while the glow plugs are preheating.
If the engine fails to start immediately, the start
er will be switched off automatically after a few
seconds. Try to start the engine again.
Start/stop system
Please note the information on ¢ page 71,
Start/stop sy
stem.
A WARNING
Never run the engine in confined spaces. The
exhaust gases are toxic -risk of poisoning!
CD CAUTION
Avoid high engine speeds, full throttle and ex
treme load conditions until the engine has
reached its normal operating temperature;
otherwise this can damage the engine.
@) For the sake of the environment
Do not warm up the engine by running it with
the car stationary. You should drive off imme
diately whenever possible. This will help avoid
unnecessary exhaust emissions.
ijj} Note
-Any noises which may be heard when the
engine is started are quite normal and no
cause for concern.
- If you leave the vehicle with the ignition
� switched
on, it will be switched off auto-
o
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This function is not available on all export versions. Driving
matically after a while. Please note that
electrical equipment such as the exterior
Lighting will also be switched off.
Switching off the engine
� Stop the vehicle.
� Vehicles with automatic gearbox: Move these
lector Lever to position P.
� Press the !START
ENGINE STOP!
button
¢page 68, Fig. 72.
Steering lock1
)
The steering will be locked if you switch off the
engine with the !START
ENGINE STOP!
button,
move the selector lever to position P (on vehicles
with automatic gearbox*) and open the driver's
door.
The steering will be Locked if you switch off the
engine with the !START
ENGINE STOP!
button
and open the driver's door. The steering lock acts
as a theft deterrent.
Emergency Off function*
If necessary in an emergency, the engine can be
switched off while the vehicle is still moving at
speeds of 7 km/h and above. To switch off the
engine, press the !START E
NG I
N E
ST
OP!
button
twice in quick succession or hold it in for longer
than two seconds.
A WARNING
- Never switch off the engine until the vehicle
is stationary. Otherwise you may not have
the full benefit of the brake servo and pow
er steering. You may need more strength to
steer and brake the vehicle than you nor
mally would. This would mean a greater risk
of accidents and serious injury, because you
cannot steer and brake in the normal man
ner.
- Always take the key with you when you leave
the vehicle. Otherwise the engine can be
started or power-operated equipment such
as the electric windows can be used. This
could result in serious injury.
liJI>
69

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The engine has not yet reached the minimum
temperature required for start/stop mode.
- The interior temperature selected on the air
conditioner has not yet been reached.
- The exterior temperature is very high/Low.
- The windscreen is being defrosted @.
- The parking aid* or park assist* is switched on.
- The vehicle battery charge is too Low.
- The steering wheel is close to full Lock or the
vehicle is being steered.
- Reverse gear has just been selected.
- The vehicle is on a steep gradient.
� will appear in the infotainment display to in
dicate this status.
Engine cuts in again automatically
The stop phase is interrupted in the following sit
uations, for example. The engine cuts in auto
matically without intervention from the driver.
- The vehicle starts to roll (e.g. on a hill).
- The interior temperature deviates from the air
conditioner setting.
- The windscreen is being defrosted @.
- The brake pedal is pressed several times in suc-
cession.
- The vehicle battery charge drops to an insuffi-
cient level.
- The power consumption is high.
Ignition is switched off automatically
To prevent the vehicle battery from being dis
charged, the ignition will be switched off auto
matically if certain conditions are met. For in
stance:
- The vehicle has already been driven.
- The start/stop system has switched off the en-
gine.
- The driver's door is opened.
- The driver's seat belt is unbuckled.
- The brake pedal is not pressed.
- The vehicle is stationary.
If the dipped beam headlights are on when this
happens, the side lights will be turned on instead
and the message Side Lights will be automatical
ly switched off in 30 minutes. See owner's man
ual will appear on the infotainment display. After Driving
approx. 30 minutes, or when you Lock the vehicle,
the side lights will be switched off.
If the start/stop system has not stopped the en
gine or if you have switched off the start/stop
system manually, the engine will continue run
ning and the ignition will not be switched off au
tomatically¢,&..
A WARNING
Never run the engine in confined spaces. The
exhaust gases are toxic -risk of poisoning!
(© Note
If you select D, No r S (on vehicles with auto
matic gearbox) after selecting reverse gear,
the car must have been moving at over
10 km/h before the system can switch off the
engine again.
Switching the start/stop system off and on
manually
Applies to: vehicles with start/stop system
You can switch the system off manually if you
don't want to use it.
Fig. 77 Centre console: Switch for start/stop system
� To switch the start/stop system off or on man
ually, press the l(A)"'I button. The LED in the but
ton will light up when the system is switched
off.
@ Note
If you switch off the system during a stop
phase, the engine will start again automati
cally.
73

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order to hold the vehicle and make it easier for
you to drive away.
Driving off with the hold assist
Applies to: vehicles with hold assist
The hold assist helps the driver if the vehicle is
stationary for a long period or very often, for in
stance at traffic lights, on steep gradients or in
stop-and-go traffic.
Important: The driver's door must be closed and
the engine must be running.
.,. To switch the hold assist on/off, press the but
ton(@) @¢page 74, Fig. 78, ¢A .The LED in
the button will light up or go out.
.,. Once it detects that the vehicle has stopped,
the hold assist keeps the vehicle stationary.
You can now take your foot off the brake pedal.
.,. Drive
off in the normal way: the brake will be
released automatically and the vehicle will
start moving.
In certain situations, the hold assist transfers the
job of holding the vehicle to the parking brake.
As soon as the parking brake is holding the vehi
cle still, the warning lamp. appears in the in
strument cluster. In addition, the LED in the C®)
button will light up.
Driver messages in the instrument cluster
display
[iJ Hold assist: unavailable
If this message appears, the system require
ments have not been met.
A WARNING
Applies to: vehicles with hill hold assist
If you do not drive away immediately after re
leasing the brake pedal, or if the engine
stalls, the vehicle may start to roll back. You
should therefore immediately press the brake
pedal or apply the parking brake.
A WARNING
The intelligent technology in the hold assist*
and hill hold assist functions cannot defy the
laws of physics. Do not let the extra conven
ience afforded by the hold assist* and hill
76 hold
assist functions tempt you into taking
any risks when driving -this can cause acci
dents.
- The hold assist* and hill hold assist func
tions cannot keep the vehicle stationary in
all conditions on a gradient (e.g. if the road
is slippery or icy).
- Always ensure that the vehicle is stopped
properly and safely -risk of accident!
CD CAUTION
Switch off the hold assist* function before
driving the vehicle into a car wash.
� Note
Applies to: vehicles with automatic gearbox
When the hold assist* function is switched
on, it stops the vehicle from creeping for
wards when you take your foot off the brake
pedal.
Automatic gearbox
Introduction
Applies to: vehicles with automatic gearbox
The vehicle is equipped with an electronically
controlled dual-clutch gearbox (S tronic). Torque
between the engine and the gearbox is transmit
ted via two independent clutches. They enable
smooth, uninterrupted acceleration of the vehi
cle.
The gearbox shifts up or down automatically and
continuously adapts the timing of the gear
changes to your driving style.
When you drive at moderate speeds the gearbox
will select the most economical shift pro
gramme. It will then change up early and delay
the downshifts to give better fuel economy.
If you drive at higher speeds with heavy accelera
tion, if you open the throttle quickly, or if you use
the kick-down or the car's maximum speed, the
gearbox will automatically select the more "spor
ty" shift programmes.
If desired, you can also select the gears manually
(tiptronic mode).

Downloaded from www.Manualslib.com manuals search engine Driving
while the engine is running, you must apply
the parking brake and engage the parking
lock P.
- To avoid accidents, apply the parking brake
and put the selector lever in position P be
fore opening the bonnet and working on the
vehicle with the engine running. Please ob
serve the important safety warnings
¢ page 244, Working on components in
the engine comportment.
Ct) Note
- Drive select: You can select the sport pro
gram for gear changes by activating the dy
namic mode. The infotainment display will
show S instead of D.
- If the lever is moved accidentally to N when
driving, take your foot off the accelerator
and let the engine speed drop to idling be
fore selecting Dor S again.
- It is not possible to move the selector lever
out of position P if the electrical power sup
ply fails. In this case, the selector lever can
be released manually. Left-hand drive
vehicles ¢page 84, right-hand drive
vehicles ¢page 85.
Selector lever lock
Applies to: vehicles with automatic gearbox
The selector Lever Lock prevents gears from being
engaged inadvertently, so that the vehicle is not
set in motion unintentionally.
Fig. 80 Selector lever lock
The selector lever lock is released as follows:
• Switch on the ignition.
78 •
Press the brake pedal and at the same time
press in the interlock button.
Automatic selector lever lock
The selector lever is locked in the P and N posi
tions when the ignition is on. To move the selec
tor lever out of these positions the driver must
press the brake pedal. To move out of position P,
the interlock button must also be pressed. The
following message appears in the display as a re
minder for the driver when the selector lever is in
position P or N:
To select a gear please press brake pedal and in
terlock button on gear selector lever
The selector lever lock only works if the vehicle is
stationary or driving at speeds up to 2 km/h. At
higher speeds the selector lever lock in the N po
sition is disengaged automatically.
The selector lever lock is not engaged if the se
lector lever is moved quickly through position N
(e.g. when shifting from R to D). This makes it
possible, for instance, to "rock" the vehicle back
wards and forwards if it is stuck in snow or mud.
The selector lever lock engages automatically if
the brake pedal is not depressed and the lever is
in position N for more than about two seconds.
Interlock button
The interlock button on the selector lever handle
prevents the driver from inadvertently engaging
particular gears. The illustration shows the selec
tor lever positions in which the button has to be
pressed, highlighted in colour¢ Fig. 80.
{(D) Note
- If the selector lever does not lock automati
cally, a malfunction has occurred. In this
case, the power transmission is interrupted
to prevent the vehicle from moving uninten
tionally. Proceed as follows to engage the
selector lever lock again:
- Press the brake pedal briefly.
- If the vehicle does not move forwards or
backwards even though a gear is selected,
proceed as follows:

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WARNING
The downhill speed control function cannot
defy the laws of physics and may therefore
not be able to maintain a constant speed in
certain circumstances. Always be prepared to
use the brakes!
Manual gear selection (tiptronic mode)
Applies to: vehicles with automatic gearbox
The tiptronic feature allows the driver to also
change gear manually.
Fig. 82 Centre console: Manual gear selection using selec
tor lever
Fig. 83 Steering wheel: Manual gear selection with paddle
levers*
Gear selection with selector lever
The tiptronic mode can be selected either with
the vehicle stationary or on the move.
� From position D/S, push the selector lever to
the right into the tiptronic selector gate to acti
vate tiptronic mode. As soon as the automatic
gearbox has activated this mode, the letter M
will appear on the infotainment display
� ¢
page 77, Fig. 79; e.g. M4 means that the ve-
N hicle is in 4th gear.
� � Briefly
push the selector lever forwards 0
[;:j ¢
Fig. 82 to change up a gear.
CX) Driving
� Briefly pull the selector lever back 0 to change
down a gear.
Gear selection with paddle levers*
You can use the paddle levers when the selector
lever is in position D/S or M (= tiptronic selector
gate).
� To shift up a gear, briefly pull the paddle lever
0 ¢Fig. 83.
� To shift down a gear, briefly pull the paddle lev
er 0.
� Applies to TT RS: To select the lowest/highest
possible gear, hold the paddle lever 0 / 0 for
longer.
If you use the paddle levers when the selector
lever is in positions D/S, the gearbox will remain
in manual mode for a while. To switch back im
mediately to automatic mode after changing
gears manually, pull the paddle lever 0
¢ Fig. 83 for approximately 1 second.
If you want to use the paddle levers permanent
ly, push the selector lever from position D/S to
the right into the tiptronic selector gate.
The gearbox automatically shifts up or down into
the next gear before a critical engine speed is
reached.
Applies to RS model: When accelerating, the
gearbox does not automatically shift up into the
next gear shortly before the maximum engine
speed is reached. Remember to shift to the next
gear in good time.
The gearbox only allows manual gear changes if
the engine speed would remain within the per
missible range.
Kick-down feature
Applies to: vehicles with automatic gearbox
The kick-down feature is designed to give maxi
mum acceleration.
When the accelerator pedal is pressed right down
past the point of resistance at full throttle, the
gearbox will shift down to a lower gear, depend-
ing on road speed and engine speed, and the en
gine power will be fully exploited. The upshift to
.,..
81

Downloaded from www.Manualslib.com manuals search engine Driving
the next higher gear is delayed until the engine
reaches maximum rpm.
A WARNING
Please note that if the road surface is slippery
or wet, the kick-down feature could cause the
driving wheels to spin, which could result in
skidding.
Coast ing mode
Applies to: vehicles with automatic gearbox
In coasting mode, you can use the vehicle's kinet
ic energy to drive without using the accelerator
on certain stretches of road. This saves fuel by al
lowing you to take your foot off the accelerator
earlier and let the vehicle coast (for instance
when approaching a speed restriction in a built
up area).
Switching on coa sting mode
Important: Selector lever must be in D, gradient
must be less than 12 %.
� Select efficiency mode in drive select*
¢page 100 (you only have to do this once).
� Take your foot off the accelerator.
If you have selected the "on-board computer"
display, the message Coasting mode will then
appear. The gearbox automatically disengages
the clutch at speeds above 20 km/h and lets the
vehicle coast without the engine braking effect.
The engine ticks over at idling speed while the ve
hicle is coasting.
Stopping coasting mode
� Press the brake pedal or accelerator.
To use the engine braking effect and overrun fuel
cut-off again, all you need to do is tap the brake
pedal briefly.
You can improve your fuel economy and help to
reduce emissions by using a combination of the
coa sting mode (i.e. coasting with low fuel con-
l l
The ESC lamp lights up permanently and the message
Stabilisation control (ESC): sport. Warning! Restricted
stability appears temporarily in the infotainment display
to indicate the deactivation status.
82 sumption
on a longer stretch of road) and the
overrun fuel cut-off (i.e. using the engine brak
ing effect with no fuel consumption on a shorter
stretch of road).
A WARNING
- If you are approaching an obstruction when
coasting mode is switched on, please re
member that the vehicle will not slow down
as quickly as usual when you take your foot
off the accelerator -risk of accident!
- The vehicle can pick up speed if you are driv
ing down a slope in coasting mode -risk of
accident!
- If other people are using your car, you
should draw their attention to the coasting
mode.
ijJ) Note
- Coasting mode is only available in efficien
cy* mode (drive select*).
- The message Coasting mode only appears
when the current fuel consumption display
is selected. The gear is no longer displayed
when you are in coasting mode (e.g. E in
stead of E6).
- The coasting mode is deactivated tempora
rily on gradients of 15 % or greater.
Launch control programme
Applies to: vehicles with automatic gearbox
The launch control programme enables maxi
mum acceleration.
Important: The engine must be warm and the
steering wheel must be pointing straight ahead.
� Deactivate the start/stop system*¢ page 73.
The LED in the l(A)""
I button will light up.
� Deactivate the hold assist* ¢ page 76. The LED
in the button will go out.
� Press the IJ,OFF! button
once briefly while the
engine is running 1
). �