-Offroad mode and hill descent assist must
not be turned on
c::> 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 :
- Th e ign ition is turned off.
- Th e
1.:1"1 button is pressed again.
- The high voltage battery charge level is low .
- The veh icle speed is higher than approxi -
mately 62 mph (100 km/h).
- The
S selector lever position or tiptronic
mode is selected .
- 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 combustion
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 selected, 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 elect ric 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 in 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. 107 @. 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
c::> page 98, fig. 107 @.
The energy recovery is shown in the MMI dis
play
c::> 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 comb ustion engine
is low.
- The temperature of the catalyt ic converter is
low .
- The power output needed for the A/C sys-
t em is high.
- The vehicle speed is hig h.
- 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 mo re 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 Ma x 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 kinetic 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 style increases fuel con -
and tiptronic mode sparingly. sumption.
Hybrid 103
Driving situa- Conditions Vehicle behavior
tions
- Do not run the combustion en- The temperature of the comb ust ion eng ine
gine wh ile the vehicle is parked to rises very slowly and the fuel consumption
warm t he engine . increases considerably.
- Use the rear w indow/exterior 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 run the
weather i
ng sparingly. vehicl e in elect ric mode .
- Park the vehicle in a ga rage over-
This reduces exposure of the hig h voltage
night.
Energy flow display
Applies to vehicles: with hybrid drive
Fig. 10 9 Instrument cluster: e nergy flow disp lay
The energy flow of 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 display.
Image in the instrument cluster display
.,. Press the !RESET I button in the w indshield
wipe r lever repeated ly until the e ne rgy flow
display
c::> fig . 109 appears .
Component Color
@Combustion engine orange
gray
@ Props haft green
orange
green-o range
g ray battery to co
ld temperatures . The required
temperature range for the hig h voltage
battery will then be reached more quick ly
after you start driving.
Fi g. 1 10 MMI d isp lay: energy flow display
Image in the MMI display
.,. Sele ct: i ME NUI fu nct ion button> Hybrid
contro l button r=;, fig . 110.
Meaning
The combustio n engine is runni ng
The combust io n engine is off
Electric driving/ recuperating
D riving w ith th e combust io n engine
Driving with the combustio n engine and electric
motor (boost)
Vehi cle s ta ti onary/rolling in the N sele ctor lever
p osition
Automatic
transmission
tiptronic
Introduction
The automatic transmission is controlled elec
tronically. The transmission upshifts or down
shifts automatically depending on which drive
program is selected. The power is transferred
by a torque converter .
When a
mode rate d riv in g s ty le is used, the
transmission selects the most econom ica l
driving mode. It w ill then change up early and
delay the downshifts to g ive better fuel econ
omy.
T he transmission switches to a sporty mode
after a k ick-down or when the driver uses a
spo rty driving sty le characterized by quick ac
celerator pedal movements, heavy accelera
tion, frequent changes in speed and traveling
at the maximum speed.
If desired, the driver can a lso select the gears
manually ( tiptronic mode ) c:> page 12 7.
Selector lever positions
Fig . 131 D isp lay in t he i nst ru m en t cluster: selecto r
l ever in pos it ion P
The selector lever position engaged appears
next to the selecto r lever as well as in the in
strument clus ter disp lay.
P- P ark
In th is selector lever pos ition the transmis
sion is mechan ically locked . Engage P only
when the vehicle is
completely stopped c:> 11::..
Automa tic tran sm iss ion 123
in Driving the automatic transmission on
page 126.
T o shift in or out of posit io n P , yo u m ust first
press and ho ld the brake pedal and then press
the re lease button in the selector leve r handle
whi le moving the selector lever to or from P.
You can shift out of th is position only with the
ignition on.
R -Reverse
Se lect R on ly when the vehicle is at a full stop
and the engine is running at idle speed c:> 11::.. in
Driving the automatic transmission on
page 126.
Before you move the se lector lever to R, press
both the button in the hand le o f the selector
lever
and the brake pedal at the same t ime.
When the ignition is on, the backup lights illu
minate when the selecto r lever is moved into
R .
N -Neutral
The t ransm iss ion is in neut ral in this pos ition.
S hi ft to t his position fo r standing with the
brakes appl ied
c:> 11::.. in Driving the automatic
transmission on page 126 .
The vehicle can
also roll when the engine is stopped .
When the vehicle is stat iona ry or at speeds
below 1 mph (2 km/h), yo u m ust always apply
the footbrake before and whi le mov ing the
lever o ut of
N .
D/S -Normal position for driving forward
In the D/S pos ition, the transmission can be
operated either in the no rma l mode D or in
the sport mode S. To select the sport mode S,
pull the selector lever back briefly. Pulling the
lever back again will se lect the normal mode
D. The instrument cluster disp lay shows the
selected driving mode.
In the
normal mode D, the transmission auto
matically selects the s uitable gear ratio. It de
pends on engine load, vehicle speed and driv
ing style.
Se lect the
sport mode S for sporty dr iving .
The vehicle makes fu ll use of the engine's
206 Driving and en vir onm ent
Catalytic converter
Appl ies to vehicles: with gasoline e ngin e
It is very important that your emission con
trol system (catalytic converter) is function
ing properly to ensure that your vehicle is run
ning in an environmentally sound manner .
.. Always use lead-free gasoline i=> page 222,
Gasoline .
.. Never run the tank down all the way to emp-
ty .
.. Never put too much motor oil in your engine
¢ page 236, Adding engine oil 'l=r. .
.. Never try to push- or tow-start your veh icle.
The catalytic converter is an eff ic ient "clean
up" device built into the exhaust system of
the vehicle. The catalyti c converter burns
many of the pollutants in the exhaust gas be
fore they are released into the atmosphere.
The exclus ive use of unleaded fuel is cr itically
important for the l ife of the cata lytic convert
e r and proper functioning of the engine.
A WARNING
T he temperature o f the exhaust system is
high, both when driving and after stopping
the engine .
- Never touch the exhaust tail pipes once
they have become hot. This could result
in burns.
- Do not park or operate the vehicle in
areas where the hot exhaust system may
come in contact with dry grass, brush,
fuel spill or other material which can
cause a fire.
- Do not apply additional undercoating or
rustproofing on or near the exhaust
man ifold, exhaust p ipes, catalytic con
verter or heat sh ields . During driving, the
substance used for u ndercoating cou ld
overheat and cause a fire.
@) Note
- Be aware that just one tank f illing with
leaded fuel will already seriously de
grade the perfo rmance of the cata lytic
conve rter. -
Do not exceed the correct engine oil level
i=>page 236.
-Do not drive until the fue l tank becomes
completely empty . The engine co uld m is
fire . Unburned fuel could also get into
the exhaust system and this cou ld cause
the catalytic converter to overheat.
- Do not turn off the ignition while the ve
hicle is mov ing .
- Do not continue to ope rate your vehicle
under these conditions, as otherwise fuel
can reach the catalyt ic converter. Th is
cou ld result in overheating of the con
verter, requir ing its replacement .
- To assure efficient operation of the Emis
sion Control System:
- Have you r vehicle maintained p roperly
and in accordance w ith the service rec
ommendations in your Warranty & Maintenance book let.
- Lack of prope r maintenance as we ll as
improper use of the vehicle wi ll impair
the function of the em ission contro l
system and could lead to damage.
@) For the sa ke of the en vironment
Even when the Emission Control System is
ope rat ing properly, the exhaust gas can
have a sulfur-like exhaust gas smell under
some operat ing states. This depends on
the sulfur content of the fuel being used .
Usi ng a different brand of fuel may help,
or f illing the tank with lead-free super
grade gasoline.
Diesel particulate filter
Applies to vehicles: with diese l eng ine
The diesel part icu late filter filters nearly all of
the soot pa rticles out of the exhaust . T he fil
te r cleans itself automat ica lly unde r no rma l
dr iv ing cond itions . If the filte r cannot clean it
self (for example, because you are on ly driving
short distances), the filter becomes clogged
with soot and the
II symbol for the diesel
particulate filter i lluminates
i=> page 34. ..,.
A WARNING ,~
- Do not park your vehicle over flammable
materials such as grass or leaves because
the high temperature of the diesel par
t icu late filter could start a fire .
- Do not apply an underbody protectant in the exhaust system area or a fire could sta rt.
Avoid damaging the
vehicle
When you are driving on poor roads, o r over
curbs, steep ramps, etc., make ce rtain that
l ow -lying parts such as spoi lers and exhaust
system parts do not bottom out and get dam
aged.
This is especially true for vehicles with low
slung chassis (sports chassis)* and f ully load
ed vehicles.
Shutting down vehicle
I f you wou ld like your veh icle to remain inop
erative for a longer period of time, contact an
Audi or other specialized dealer. They can ad
vise you on necessary precautions e.g . corro
sion prevention, ma intenance and storage.
Pay attention to add itiona l information con
cerning the battery. Refer to
c::> page 242 .
Operate your vehicle
economically and
minimize pollution
General
Your personal style of driving will determine
the economy of your vehicle, as well as ex
haust and noise levels.
Fuel economy, environmental impact, and
wear on your engine, brakes and t ires largely
depend on th ree factors:
- you r persona l dr iving style
- operating conditions
- technica l lim itations
Dri vin g and en vironm ent 207
If you ant ic ipate what you need to do next and
drive economically, yo u can easily cut yo ur
fuel consumpt ion by 10 -15 percent. T his sec
tion w ill give you some tips on how you can
help the env ironment and your pocketbook.
Q) Tips
The consumption estimates as published
by ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre
spond to your actual consumption on the road, which will vary depending upon vehi
cle load and speed, road and weather con
dit ions, t rip leng th, etc.
Drive smoothly and keep a lookout
ahead
Vehicles use the most fuel when they are ac
celerating .
.,. Avo id u nnecessary accelerating and b rak ing.
Vehicles use the most fuel when they are ac
ce le rat ing . If you ant icipate what is going to
happen next, you will need to brake less and,
thu s, acce le rate less. Le t the vehicle coast
whenever possible -for examp le when you see
that the next t raff ic light is re d.
Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage.
.,. Try and keep well below your car 's maximum
speed.
Acce le rat ing gently reduces fue l cons ump
tion, eng ine wear, and does not disturb the
environment.
Fuel consumpt ion, exhaust emiss ions and e n
gine noise inc rease disproport ionately at high
speeds . If you driv e at app rox imately th ree
quarte rs of top speed, fuel consumption w ill
be reduced by one ha lf. Never d rive fas ter
t han the pos ted speed limi t and weathe r con
ditions pe rmit.
•
•
208 Driving and environment
Reducing unnecessary idling
Even when your car is just idling it burns up
fuel.
.,. Shut the engine off when you are not driving
the vehicle.
.,. Do not warm up the vehicle by letting the
engine run at idle .
The idling phase is automatically reduced for
vehicles with the Start-Stop -System* . It is ef
fic ient to sw itch
off the eng ine in vehicles
without the Start-Stop-System* when stopped
at railroad crossings and long red lights. Turn
ing the eng ine
off for just 30-40 seconds
saves more fuel than is burned by sta rting the
engine again .
It takes a long time for the engine to wa rm up
fu lly when it is running at idle. However , wear
and nox ious emissions are especially high
when the engine is warming up. So you should
drive away as soon as you start the engine and
avoid running at high rpms while the engine is
still warming up.
(D Note
Do not leave engine idling unattended af
ter starting. If warning lights should come
on to indicate improper operation, they
would go unheeded. Extended idling also
produces heat, which could resu lt in over
heat ing or other damage to the vehicle or
other property .
Regular maintenance
A badly tuned engine unnecessarily wastes a
lot of fuel .
.,. Have your vehicle serviced at regular inter-
vals.
By having your vehicle regularly serviced by an
author ized Audi dealer helps to ensure that it
runs properly and economically . The condition
of your vehicle not only affects its safety and
ab ility to hold its value, it also affects
fuel
consumption. Check
your oil each time you fill your tank.
The amount of oi l used is re lated to engine
load and speed.
It is normal for the oil consumption of a new
engine to reach its lowest value after a certa in
mileage has been driven .
You must drive your veh icle about 3,000 mi les
(5,000 kilometers) before you can properly
assess oil consumpt ion.
This also app lies to fuel consumption and en
gine output .
(0 Note
- Have your veh icle ma inta ined properly
and in accordance with the service rec
ommendations in your Warranty
& Ma in
tenance booklet. Lack of proper ma inte
nance as well as improper use of the ve
hicle will impair the function of the
em iss ion control system and could lead
t o damage.
- Do not alter or remove any component of
the Emission Control System unless ap
proved by the manufacturer.
- Do not alter or remove any device, such
as heat shie lds , switches, ignition wires,
valves, which are designed to protect
your vehicle's Emission Control System
and other important vehicle compo
nents.
' Fewer short trips
Fuel consumption will always be relatively
high on short trips.
... Try to avoid driving sho rt distances w it h a
cold engine .
T he eng ine and catalytic converter have to
reach their optimal
operating temperature to
reduce fuel consumpt ion and nox ious emis
sions effectively.
Jus t after starting, a cold engine in a mid-s ize
car only achieves a fuel economy of 6-8 mi les
per gallon (30 -40 l/100 km). After about a
half a mile, fuel economy climbs to 12 mpg .,..
(20 l/1 00 km) . Afte r abo ut 2. 5 m iles ( 4 km),
the eng ine is at its proper ope rati ng tempera
ture and fue l economy has reached a no rma l
l eve l. So you ca n see that you shou ld avoid
short trips whenever possib le.
The
outside temperature is a lso c ritica l in this
regard. Your car cons umes more fuel in the
winter than in t he summer .
Driving and environment 209
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