Hybrid
St art-Stop function
The combust ion engine is operated only as need
ed . Genera lly, the combustion engine turns
off
when the vehicle is stationary and the high volt
age battery powers the electrical vehicle sys
tems .
The purpose o f automatica lly shutting the com
bustion engine
off in hybrid drive mode is to save
fue l. All of the important vehicle systems, such
as steering, brakes and the A/C system, contin ue
to remain active. In some cases, systems may re
qu ire the combustion engine to continue running
when the vehicle is stationary. When driv ing in
congested traffic for long periods of t i me, the
combustion engine will cycle on when the veh icle
is stationa ry to keep the h igh voltage battery
charged .
Gliding
If the gas pedal is not pressed and the D position
is selected, the combustion engine rema ins
turned
off up to speeds of approximate ly 99 mph
(160 km/h). Dr iving conse rvative ly like this can
r educe fue l consumpt ion.
Energy recovery (recup eration )
When braking, the e lectr ic motor will act as a
generator creating electric energy that is then
s to red in the h igh voltage batte ry. This also oc
curs when the ve hicle is coas ting or dr iv ing down
hi ll. The combust ion engine is automatically
turned
off in t his case.
Tips for Driving Efficiently with your Hybrid
Applies to veh icles: w ith hybrid drive
Driving situa- Conditions
tions
- Shift into the D pos ition .
Starting from a -
Release the brake pedal.
stop -
Only press mode rate ly on the ac-
celer ator peda l.
102
The vehicle is braked with the electric motor by
applying early and even press ure to t he brakes
and us ing short pedal movements¢
page 99,
fig. 110@. By do ing th is, a large amount of the
k inet ic energy is recovered and may be stored as
electric energy in the high voltage batte ry. Dur
i ng heavy braking, the convent ional brakes are al
so act ivated
¢ page 99, fig . 110 @.
The energy recovery is shown in the MMI display
¢page 105 .
Automatic start of the combu stion engine
Various operating conditions cause the combus
tion eng ine to start a utomatica lly :
- T he high vo ltage battery charge leve l is low.
- T he temperature of the combustion engi ne is
low.
- Th e temperature of the cataly tic converte r is
low.
- T he power output needed for the A/C system is
high.
- T he veh icle speed is high .
- The vehicle acceleration is h igh .
- The incline is steep.
- High charge level for the high voltage battery
when coasting. In this case, the hig h voltage
battery cannot absorb any more ene rgy and so
the electric motor cannot s low down the veh i
cle. The combustion engine tur ns on (eng ine
brake) . In this situation the high voltage bat
tery will show a Max cha rge.
Vehicle behavior
In the D posit io n, the hybrid system adapts
to the driving s ituat ion by automatically
sw itch ing between the combust io n engine
a nd e lectr ic dr ive types or by combini ng
them.
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The side airbag system supplements the safety be lts and can he lp to reduce the risk of injury to
the dr iver's and front passenger's upper torso on
the side of the vehicle that is struck in a side col lision . The airbag deploys only in side impacts
and only when the veh icle acceleration registe red
by the control unit is high enough . If th is rate is
be low the reference value programmed into the
control unit, the side ai rbags wi ll not be trig
gered, even though the car may be bad ly dam
aged as a result of the collision .
It is not possible
to define an airbag triggering range that will cov
er every possible angle of impact, since the cir
cumstances will vary considerably between one
coll is ion and another. Important factors include,
for example, the nature (hard or soft) of the im pacting object, the ang le of impact, vehicle
speed, etc .
r::;:,page 168, Important safety in
structions on the side airbag system .
Aside from their normal safety function, safety
be lts work to help keep the driver or front pas
senger in pos it ion in the event of a side collision
so that the s ide a irbags can provide protect ion.
The airbag system is
not a substitute for your
safety belt . Rather, it is part of the overall occu
pant restraint system in your vehicle . Always re
member that the side airbag system can only
he lp to p rotect you if you are wear ing your safety
be lt and wearing i t properly. This is ano ther rea
son why you shou ld always wear your sa fety
be lts, not just because the law requires you to do
so
r::;;, page 144, General information.
It is important to remember that while the sup
p lemental side airbag system is designed to re
duce the likelihood of serious injuries, other inju ries, for examp le, swe lling, bruising, and minor
abrasions can also be associated with deployed
side airbags. Remember too, side airbags will de ploy only once and only in certain kinds of acci
dents -your safety belts are always there to offer
protection.
Vehicle damage, repair costs or even the lack of
vehicle damage are not necessarily an indication
of over -sens itive or fa iled a irbag activation . In
some coll isions, both front and s ide airbags may
i nflate. Remember too, that airbags will deploy
only once and only in ce rtain kinds of collisions -
Airb ag system
you r safety belts are always there to offer protec
tion in those accidents in which airbags are not supposed to deploy or when they have already
deployed .
The side airbag sy ste m w ill not deploy :
-when the ignit ion is turned off
- in side co llisions whe n the acceleration meas-
ured by the sensor is too low
- in front-end collisions
- in rear-end collisions
- in rollovers .
In some types of accidents the front airbags, side
curtain airbags and side airbags may be triggered
together.
A WARNING
-- Safety belts and the airbag system will only
provide p rotection when occ upants are in
the proper seating position
r::;;, page 168.
- If the airbag ind icator light r::;:, page 16
comes when the veh icle is being used, have
the system inspected immedia tely by your
author ized Audi dealer.
It is possib le tha t
the airbag will inflate when i t is not sup
posed to, or will not inflate when it should.
How supplemental side airbags work
Side airbags deploy instantly and can help re
duce the risk of upper torso injuries for occu
pants who ore properly restrained.
Fig. 170 Inflated s ide a irbags o n left s ide o f vehicle
9 a: (D Cl)
When the system is triggered, the a irbag is filled
with propellant gas and breaks through a seam in
the seat surface area marked "AIRBAG" .
It ex-
pands between the side trim panel and the
ll>
167
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Gasoline additives
Appl ies to vehicles: with gaso line engine
A major concern among many auto manufactur
ers is carbon deposit build-up caused by the type
of gasoline yo u use.
Although gasoline grades differ from one manu
facture r to another, they have certa in things in
common. A ll gasoline grades contain substances
that can cause deposits to collect on v ita l engine
parts, such as fue l injectors and intake va lves. A l
though most gasoline brands include additives to
keep engine and fuel systems clean, they are not
equally effective.
Audi recommends using TOP TIER Detergent Gas
oline. For more information on TOP TIER Deter
gent Gasoline, please go to the official website
(www.toptiergas.com).
After an extended period of using inadequate
fuels, built-up carbon deposits can rob your en
gine of peak performance .
CD Note
-Damage or malf u nction due to poor fuel
quality is not covered by the Audi New Vehi
cle Limited Warranty.
- Do not add aftermarket fuel additive prod
ucts to your fuel tank.
Diesel fuel
Applies to veh icles: with d iesel e ng in e
Always use ULSD (Ultra Low Sulfur Diesel) No. 2.
The ULSD No. 2 meets the ASTM O97S.
Diesel fuel with concentrat ions of biodiesel high
er than S
% such as B11, B2O or B1OO are strictly
prohibited.
Service station fuel pumps are labeled w ith the
correct fuel information for easy recognition by
the user .
If the diesel fuel pump is not labeled
ask the station operator what fuel is being d is
pensed before filling up your vehicle.
ULSD No. 2 may not be ava ilab le outside the USA
and Canada. Be sure to check before traveling to
other countries .
Fuel and Refueling
ULSD No. 2 can become thicker in very cold tem
peratures, and this can impair the engine's start
ing and running. Depend ing on the season, gas
stations provide ULSD No. 2 that flows better in cold temperatures so that you can cont inue oper
ating your vehicle as usual.
CD Note
- Your vehicle's diesel engine was designed
soley for use w ith ULSD No. 2. Therefore,
never use gasoline, heating oil, other fuels
or flow improvers. These contain substances
that will severe ly damage the fuel system
and the engine. Such damage will not be
covered by your New Vehicle Limited War
ranty.
- If you put any amount of incorrect fuel in
the fuel tank, do not start the engine under
any circumstances. Immediately contact the
nearest authorized Audi dealer or author
ized Aud i Service Facility for assistance .
These fuels contain substances that can se
vere ly damage the fuel system and the en
gine if the engine is started.
Refueling
Fuel filler neck
The fue l filler neck is located on the right rear
side panel behind the fuel filler flap .
If the power lock ing system should fail, you can
still open the flap manually -for detailed instruc
tions see
¢ page 217.
You can find the fuel tank capacity of your vehicle
in
¢ page 278.
The label on the inside of the fuel f iller flap tells
you the correct fuel for your veh icle. For more in
formation about fuel specifications, see
¢page 213.
Your vehicle fuel tank has an on-board refuelling
vapor recovery system. This feature helps to pre
ven t fu el vapors from escap ing from the tank and
polluting the environment while yo u refuel your
vehicle. In order to fill the tank properly while
protecting the environment, please follow this
refueling procedure carefully .
215
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~ Connect the charger connectors according to
the instructions to the
j u mp st a rt b olt s. (Bo lts
under the cover= "posit ive", Bo lts with hex
head = "negat ive").
~ Only now plug the mains lead for the charging
equipment into the wall outlet and turn it on
c::> &_ .
~ Ma ke sur e th e chargin g rat e is not o ver
30 amp s/14 .8 Volt .
~ When the batte ry is f ully charged: Tu rn the
charging equ ipment
off and remove the mains
lead from the wall outlet .
~ Now remove the clamps for the charging equip
ment.
~ Close the cover@on the positive term inal and
re-install the
cover (D .
~ Close the hood c::> page 221 .
A discharged battery can freeze at temperatures
of only 32 °F (0 °C). Allow a frozen battery to
thaw completely before attempting to charge it
c::> ,& . However, we recommend not using a
thawed battery again because the battery casing
can be cracked due to ice formation and ca n leak
battery acid.
B attery ch arging (Maximum charging rate of
30 amps /14.8 Volt )
When charging at
Low voltages (e.g. w ith a tri ckl e
c har ger ),
the bat tery cables do not have to be
d isconnected first. The ba ttery caps shou ld
not
be opened when charg ing a battery .
I t is not necessary to
remove the batte ry from
t he luggage compa rtment.
F a st charging the b attery (charging rate
above 14.8 Volts )
F or technica l reasons do not use a battery charg
e r that uses voltage greater than 14.8 Vol ts to
charge your veh icle's batte ry.
A WARNING
Charging a batte ry can be dangerous.
- Always fo llow the oper ating instructions
provided by the battery charge r manufactur
er when charging your battery.
Checking and Fillin g
-Never charge a frozen battery. It may ex
plode because of gas trapped in the ice . Al
low a frozen battery to thaw out first.
- Do not reuse batteries wh ich were frozen.
The battery housing may have cracked and
weakened whe n the battery froze.
- Charge the battery in a well ventilated area. Keep away from open flame or electrical
spark. Do not smoke. Hydrogen gas generat
ed by the batte ry is explosive .
- To reduce the danger of explosion, never
connect or d isconnect charger cab les wh ile
the charger is operating.
- Fast charging a battery is dangerous and
should only be attempted by a competent
technician w ith the proper eq uipment.
- Battery acid that may sp ill dur ing cha rging
should be washed
off with a solut ion of
warm water and baking soda to neutralize the acid .
@ Note
Never use a fast charger as a booster to start
the eng ine . T his w ill ser iously damage sensi
tive elec tronic components, s uch as control
units, relays, radio, etc., as we ll as the battery
cha rger.
Battery replacement
The new battery must have the same specifica
tions and dimensions as the original equipmen t
battery.
Intelligent energy management in your vehicle is
r esponsible for distributi ng the elect rical energy
t h ro ugh out your vehicle
c::> page 196. T he intelli
gen t energy management system w ill keep the
engi ne battery charged better then vehicles with
out this system . To make s ure the additiona l elec
trical energy is avai lab le once again after you
have changed the battery, we recommend that
you install batteries of the same type and manu
facture on ly (the same as those installed at the
t ime you r vehicle was del ivered) . Specificat ions
are listed on the battery hous ing . Your autho r-
ized dea ler must code the battery in the ene rgy ..,.
233
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Gasoline engines
QS 2.0, 4 cylinder
Maximum output SAE net
Maximum torque SAE net
Displacement
Engine oil with filter change
Fuel
QS 2 .0 hybrid, 4 cylinder
Maximum output SAE net
Maximum torque SAE net
Displacement
Engine oil with filter change
Fuel
E lectric output (short-term)
E lectr ic torque (short-term)
Total output (short-term)
T otal torque (short-term)
Battery type
Battery energy content
QS 3.0, 6 cylinder
Maximum output SA E net
Maximum torque SAE net
Displacement
Engine oil with f ilter change
Fuel
SQS 3.0, 6 cylinder
Maximum output SA E net
Maximum torque SAE net
Displacement
Engine oil with filter change
Fuel
Techni cal d at a
hp@rpnn 220 @4450 -6000
lb -ft@ rpm 259@ 1500 -4300
CID (cm
3 ) 121.1 (1984)
quarts (liters) 4.9 (4.6)
Premium un lead ed (9 1 A KI) <=:>pag e 213, Fuel
or
Bi o-e tha no l (E B S) ¢ page 214, Ethanol fuel (Bio-etha-
no[) .
hp@rpnn 211 @4300 -6000
lb -ft@ rpm 258 @ 1500 -4200
CID (cm
3 ) 121.1 (1984)
quarts (liters) 4.9 (4.6)
Premium unl ead ed (91 AKI) , <=:>page 213, Fuel
hp 54
lb -ft 155
hp 245
lb-ft 354
Lithium-ion
kWh 1.3
hp@ rpnn 272@ 4780 -6500
lb-ft@ rpm 295@ 2150 -4780
C ID (cm
3
') 182.8 (2995)
quarts (liters) 7.2 (6.8)
Pre mi um unl ead ed (9 1 AKI) , <=:>page 213, Fuel
hp@ rpnn 354@ 6000 -6500
lb-ft@ rpm 347 @4000 -4500
C ID (cm
3
) 182.8 (2995)
quarts (liters) 7.2 (6.8)
Pre mium unlea ded (91 A KI) , <=:> page 213, Fuel
279