
- After engaging the reverse gear.
er.
Engine automatically restarts
The stop phase is interrupted in the following
situations, for example . The engine restarts
without any act ion by the driver .
- The interior temperature varies from the
temperature selected in the A/C system.
- The windshield is beeing defrosted
Q page 81.
-The brake pedal is pressed several times in a
row.
- The battery charge level becomes too low.
- High power consumption .
@ Tips
If you shift into the 0/5 or N positions af
ter shifting into reverse, the vehicle must
be driven faster than 6 mph (10 km/h) in
order for the engine to switch off again.
Switching the Start-Stop-System on/off
manually
Applies to vehicles: with Sta rt-Stop-System
If you do not wish to use the system, you can
switch it off manually .
Fig. 104 Center console: Start -Stop -System button
.,. To switch the Start-Stop -System on/off
manually, press the
1 (1;)~ 1 button . The LED in
On the road 93
the button turns on when the system is
switched off .
In vehicles without the MMI*, the
IO\> .. j button
is found underneath the selector lever .
(j} Tips
If you switch the system off during a stop
phase, the engine will start again auto
matically.
Messages in the instrument cluster
display
App lies to vehicles: wit h Start-Stop-Syste m
Start-stop system: deactivated . Please
restart engine manually
This message appears when specific condi
tions are not met during a stop phase and the
Start-Stop-System will
not be able to restart
the engine. The engine must be started with
the key or with the
I STAR T ENGINE STOP t*
button.
Start-stop system: system fault. Function
unavailable
There is a malfunction in the Start-Stop-Sys
tem. Drive the vehicle to an authorized repair
facility for servicing as soon as possible to cor
rect the malfunction.
Transmission: Car may roll! Shift to park!
This message appears if the selector lever is
not in the P position when the driver's door is
opened. You will a lso hear a warning tone.
Shift the selector lever to the P position . Oth
erw ise, the vehicle could roll.
Speed warning system
Overview
The speed warning system helps you to keep
your driving speed below a set speed limit.
The speed warning system warns if the driver
exceeds a previously stored maximum speed.
A warning tone will sound as soon as the vehi cle speed exceeds the set speed by about
3 mph (3 km/h) . At the same time, a warning
IJJ,,

Hybrid
Hybrid drive
Introduction
Applies to vehicles: with hybri d dr ive
General information
The hybrid drive is a combined drive concept
that automat ically switches between combus
tion engine and e lectric dr ive types or com
b ines them.
All work on h igh voltage systems is intended
only for high voltage technicians and may only
be performed by authorized service facilities
in accordance with Audi regulations.
The high voltage system is composed of the
following h igh voltage components : the high
voltage battery, the power electronics, the
e lectric motor, the high voltage A/C compres
sor and the orange high voltage wiring.
High voltage battery
The high voltage battery is located in the lug
gage compartment underneath the cargo
floor. You do not need to perform any mainte
nance work on the high voltage battery . Addi
tional information about the high voltage bat
tery can be found under
r=> page 105.
The high voltage battery serv ice plug is a lso
found underneath an orange cover under the
cargo floor. The service plug is provided on ly
for use by service personnel and must not be
removed by others who are not trained to use
it .
A WARNING
The voltage in the high voltage system is
life-threatening. Touching a damaged high
voltage component can result in a fatal
electric shock. The components in the high
voltage system are marked with a warn ing
label which warns against the high volt
age.
- Never perform work on orange high volt
age cables or on high voltage compo
nents . On ly authorized repair facilities
Hybr id 97
that are certified may perform work on
the high voltage system.
- Never open or remove the service plug
cover in the center of the cargo floor.
- Never damage, alter or remove the or
ange high voltage cable or disconnect it
from the high voltage system.
- Audi regulations must be followed dur
ing all work performed on the high volt
age system and high voltage compo nents.
A WARNING
While in electric drive mode, the vehicle
produces considerably less idling, driving
and operat ing noise than when the com
bustion engine is running. This may make
it difficult or impossible for others such as
pedestrians and children to hear and no
tice the vehicle when it is in electrical drive
mode. This can lead to co llisions and inju
ries, for examp le in low traffic areas, when
maneuvering or when driving in reverse.
A WARNING
-
-
Never leave the vehicle unattended while
in the drive ready mode. The vehicle could
begin moving if the accelerator pedal is
pressed, even if the combustion engine is
switched off . This may cause collisions and
severe or fata l injuries. When the vehicle
enters drive ready mode, the status mes
sage
ybr I P cl, appears briefly in the in
strument cluster disp lay and the needle in
the power meter points to
READY
r=> page98 .
-When exiting the vehicle, make sure the
selector lever is in the P position, the ig
nition is switched off and the hybrid sys
tem is deactivated .
(D Note
-The high voltage system can be damaged
if the vehicle underbody comes into con
tact with the ground . Immediate ly drive
your vehicle to an authorized repair fa cility and have it inspected.

98 Hybrid -Do not transport fluids in open contain
ers in the luggage compartment. Spilled
fluids can seep underneath the cargo
floor. This can damage the high voltage
system.
Starting the vehicle
App lies to vehicles: with hybrid drive
The vehicle is started and turned off either
with the ignition key~
page 83 or with the
I START ENGIN E STOP ! button* ~ page 86 in
the same way as a conventional vehicle .
When starting the vehicle, the needles in the instrument cluster move upward briefly .
When the vehicle enters drive ready mode,
the status message
hybrid ready appears
briefly in the instrument cluster display and
the needle in the power meter points to
READY ~ page 98.
Depending on the operation mode of the hy
brid system, there are two possible drive
ready modes after the vehicle has been start
ed:
Power meter overview
Applies to vehicles: with hybrid dr ive
Drive ready mode with combustion engine
If the operating requirements~ page 100 for
electric drive mode are
not met, the combus
tion engine starts the vehicle as usual. You can start driving as usual.
Drive ready mode with the electric motor
If the operating requirements~ page 100 for
the electric drive mode are met, the combus
tion engine remains off after starting the ve
hicle.
(0 Tips
To prevent the 12 volt battery from dis
charging, never leave the vehicle parked in
the drive ready mode. Remove the key
from the ignition or press the
I START ENGINE STOP! button* . When
leaving the vehicle always take the key
with you.
The power meter shows the hybrid drive condition and the availability of the hybrid system.
Fig. 108 Power meter overv iew
An economical driving and recuperation range
is shown in green. A driving range that is not
economical is shown in orange. In addition, the battery status
provides information about
the high voltage battery charge status.
lill-

100 Hybrid
Hybrid battery: Low battery charge.
B attery will be charged while driving.
This message appears if the high voltage bat
tery charge level has fa llen below a certain
range. If this message turns off after a little
while, the high voltage battery charged
enough while dr iv in g.
If the message does not turn off, have an au
thorized repair fac ility correct the malfunction
as soon as possible.
EV mode is currently unavailable .
This message appears if the conditions
¢
page 100 for enhanced e lectric driving are
not met. Try again at a later time.
Hybrid functions and operating modes
App lies to vehicles: with hybrid dr ive
Fig. 109 Center console: c:f,V button
.,. To turn on EV mode, press the ld"I button .
The indicator light in the button will turn
on . The. indicator light a lso turns on in
the instrument cluster display.
The functions and operating modes described
be low are se lected automatica lly by the vehi
cle control system, depending on the vehicle
operat ing status. This ensures that the vehicle
is always in the correct operating mode. One
exception is the enhanced electric driving
mode (EV mode), which is activated by the
driver
¢pag e 100.
Driving with the combustion engine
The vehicle is powered by the combustion en
gine. The h igh voltage battery is charged si
multaneously, if needed.
Full acceleration (boost)
In full acceleration, the vehicle is powered by
both the combustion engine and the electric
motor . This operating mode is called
Boost
and is on ly available for a short amount of
time because it uses so much energy. Availa
bility depends on the high voltage battery
charge level.
The boost operating mode is activated by
pressing the accelerator pedal all the way
down.
Electric driving
The vehicle can be driven completely electri
ca lly depending on the high vo ltage battery
charge level and the driving resistance. The
combust ion eng ine turns off at that t ime.
The combustion engine starts when accelerat
ing or when the high voltage battery charge
level drops be low a certain threshold. The ve
hicle resumes e lectric driving once the accel
eration and the high voltage battery charge
level permit.
Enhanced electric driving mode (EV
mode)
Pressing the 1~ 1 button ¢ fig. 109 can extend
the usual limits on electric driving so that you
can always drive in electric mode, if the condi
t ion of the e lectr ica l system permits . The op
erating mode is then set to maximum electric
drive @,@ ¢
page 98, fig. 108. It can be
driven complete ly elec trically for up to 1.8
miles (3 km) at a constant 37 mph (60 km/h) .
T he following conditions must be met to act i
vate the enhanced e lectr ic drive:
- The high voltage battery must be suffic ient
ly charged.
- The temperature of the 12 volt batter ies
and the hig h voltage battery must be suffi
cient.
- The vehicle speed must not be higher than
62 mph (100 km/h).
- The transmission must not be in tiptronic
mode.

-ESC offroad mode and hill descent assist
must not be turned on¢
page 198 .
The combust ion eng ine tu rns on and inter
rupts
the enhanced electric d rive mode when
the vehicle is accelerated. The gray indicator
light
l!I also turns on in the disp lay. The en
hanced electric drive mode resumes automati
cally once acceleration stops.
The enhanced e lectric drive mode is
deactivat
ed if at least one of the following conditions is
met :
- The ign ition is turned
off.
- Th e 1.:1"1 button is pressed again.
- The high voltage battery charge level is low .
- The vehicle speed is higher than approxi -
mately 62 mph (100 km/h).
- The S selector lever position or tiptronic
mode is selected .
- ESC offroad mode or hill descent assist is
switched on .
T he
ld" I button must be pressed to reactivate
it .
Start-Stop function
The combustion engine is operated on ly as
needed. Generally, the combustion engine
turns
off when the vehicle is stationary and
the high voltage battery powers the electrical
vehicle systems.
The purpose of automatica lly shutting the
combustion engine
off in hybrid drive mode is
to save fuel. All of the important veh icle sys
tems, such as steering, brakes and the A/C
system, cont inue to remain active. In some
cases , systems may require the combustion
engine to cont inue running when the vehicle
is stationary. When dr iv ing in congested traf
fic for long per iods of time, the comb ustion
engine w ill cycle on when the vehicle is sta
tionary to keep the high voltage battery
charged.
Gliding
I f the gas pedal is not pressed and the D posi
tion is selec ted, the combustion engine re-
Hybrid 101
mains turned off up to speeds of approxi
mately 99 mph (160 km/h). Driving conserva
tive ly like this can reduce fuel consumption.
Energy recovery (recuperation)
When braking, the electric motor will act as a
generator creating e lectric energy that is then
stored in the high voltage battery. This also
occurs when the ve hicle is coasting or driving
downhi ll. The combustion engine is automati
cally turned
off i n this case.
The vehicle is braked with the electric motor
by applying ear ly and even pressure to the
brakes and using short pedal movements
¢
page 98, fig. 108 @. By doing this, a large
amount of the kinetic energy is recovered and
may be stored as electric energy in the high
voltage battery . During heavy braking, the
convent ional brakes are also act ivated
¢ page 98, fig. 108 @.
The energy recovery is shown in the MMI dis
play ¢
page 104.
Automatic start of the combustion engine
Various operating conditions cause the com
bust ion engine to start automat ically :
- The high voltage battery charge leve l is low.
- The temperature of the combustion engine
is low.
- The temperature of the catalytic converter is
low .
- The power output needed for the A/C sys-
t em is high.
- The vehicle speed is high.
- The vehicle acceleration is high.
- The inclin e is steep.
- High charge level for the high voltage bat-
tery when coasting. In th is case, the h igh
voltage battery cannot absorb any more en
ergy and so the electric motor cannot slow
down the veh icle. The combustion engine
tu rns on (engine brake). In this situation the
h igh voltage battery will show a Max charge.

102 Hybrid
Tips for Driving Efficiently with your Hybrid
Applies to vehicles: with hybrid drive
Driving situa- Conditions Vehicle behavior
tions
- Shift into the D position.
In the D position, the hybrid system adapts
Starting from a -
Release the brake pedal. to the driving situation by automatically
stop -
Only press moderately on the ac- switching between the combustion engine
and electric drive types or by combining
celerator pedal.
them.
- Ca utious dr iv ing and reserved ac-
The kinetic energy of the vehicle is used to
ce leration . move the vehicle.
Constant driv-
ing and coasting -
Release the acce lerator pedal When you release the acce lerator pedal en -
early and entirely. ti rely, the combustion engine turns off au-
(gliding)
tomatically and is disengaged. The vehicle
glides without being propelled.
- Brake early and even ly with short The electric motor brakes the vehicle . By
Energy recovery pedal
movements. doing this, a large amount of the
kinetic
energy is recovered and may be stored in
( recuperation)
the high voltage battery in the form of
electric energy.
- Reserved acceleration and early The kinet ic energy of the vehicle is used to
and even braking w ith short pedal move the vehicle.
movements .
Driving in city -
Use the
la• I button sparing ly. The battery drains quickly when the laVI
button is turned on, which can increase
traffic
fuel consumption because electric driving
is given priority, even if driving with the
combustion engine on would be more effi-
cient .
- Intentionally take your foot off When you release the acce lerator pedal en-
of the gas pedal to allow for ti rely, the combustion engine turns off au-
lengthy coasting . tomatically and is disengaged. The vehicle
glides without being propelled.
Driv ing on high- -
Reduce the vehicle speed by re-Fuel consumption can be reduced by coast-
ways and ex-l
eas ing the accelerator peda l and mg.
pressways not by
braking.
- Avoid vehicle speeds above ajp-
It is possible to coast up to a veh icle speed
proximately 99 mph (160 km/h) . of approximately 99 mph (160 km/h).
- Use the S selector lever position A sporty driving sty le increases fuel con -
and tiptron ic mode sparingly. sumption.

Hybrid 103
Driving situa -Condition s Vehicle behavior
ti ons
- Do not r un the combustion en- The temperature of the comb ustion eng ine
gine wh ile the vehicle is parked to rises very slowly and the fuel consumption
warm the engine . increases considerably.
- Use the rear w indow/exter ior This conserves the energy in the h igh vo lt-
Driv ing in cold mirro
r defroster and the seat heat- age battery so that it is ava ilab le to r un the
weather i
ng s par ingly. vehicl e in ele ct ric mode .
- Park the vehicle in a garage over-
This reduces ex pos ure of the hig h voltage
night.
Energy flow display
Applies to vehicles: with hybrid dr ive
F ig. 110 Instrument cluster: e nergy flow disp lay
The energy flow o f the hybrid system is shown
i n the instrument cluster display and in the
M MI disp lay. The image is animated in the
MMI disp lay.
Image in the instrument cluster display
.. Pres s the !RESET I but ton in the w indshield
wipe r lever repeate dly until the e ne rgy flow
di splay
c::> fig . 110 appears .
Component
@Propshaft
Color
orange
gray
green
ora nge
g ra y battery to co
ld temperat ures . The required
temperature range for the high voltage
battery will then be reached more quick ly
after you start driving.
Fig. 1 11 M MI d isp lay: energy flow display
Image in the MMI display
.,. Select: I ME NU I fu ncti on bu tton > Hybrid
cont ro l button c::> fig . 111.
Meaning
The combustion engine Is running
The combust io n engin e is off
E lectric driving/recuperating
D riving w ith th e combus tion en gin e
Driving with the combustion engine and electric
motor (boost)
Vehi cle s ta tio nary/ rolling in the N sele ctor lever
p osition

104 Hybrid
@ High voltage battery green High voltage battery charge level
green (animated High voltage battery is charging
@ Movement arrow in MMI)
gray
green
orange
---.. ,
green-orange
@ Movement arrow g
reen
@ Tips
The Energy flow display will not shown in
the MMI display when the reverse gear is engaged, due to safety reasons .
Consumption display
Applies to vehicles: with hybrid drive
Fig. 1 12 MM! display: consumpt ion disp lay
The consumption display shows the average
energy consumption and the recuperat ion
quantity in S minute interva ls.
Call ing up th e co nsumption displa y
.. Se lect: I MENU I function button > H ybrid
control button .
.. Turn the control knob counter-clockwise.
Res etting the con sumption display
.. Se lect: I MENU I function button> H ybrid
control button.
.. Turn the contro l knob to
Reset consump-
tion stat istics.
The o range bars show the average cons ump
tion and the green bars show the recuperation
quantity . Each bar represents a measured S Vehicle is not in drive ready mode
Electric driving
Driving with the combustion engine
Driving w ith the combust ion engine and electric
motor (boost)
Recuperating
minute interval. The d isplay
covers a 60 mi
nute time period.
The bar with the white border on the outer right shows the current ave rage consumption
or the cur ren t recupera tion quan tity. After 5
minutes, th is bar travels a step to the left and
a new bar appears in the outer right.
T he filled bars show the values fo r the current
drive cycle. Once the ignition is switc hed off
and on again, all o f the p revio us ba rs a re d is
played as not filled and new filled bars appear
on the right . This is so that the values from
the previous tr ips and the current trip can be
compared visually.
Vehicle tool kit and tire repair set
Applies to vehicles: with hybrid drive
Fig. 11 3 Luggage compartment: vehicle tool bag and
tire repair se t
The vehicle tool k it is found under a cove r in
the cargo floo r<=>
fig . 113 @. The tire repair
set (Tire Mobility System) is found in the stor
age compartment in the r ight s ide tr im panel
® · ~