Hybrid
Start-Stop function
The combustion engine is operated on ly as need
ed . Generally, 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
fuel. All of the important vehicle systems, such
as steering, brakes and the A/C system, continue
to remain active. In some cases , systems may re
qu ire the combustion eng ine to continue running
when the vehicle is stationary . When dr iv ing in
congested traff ic for long per iods of t ime, the
combustion eng ine will cycle on when the veh icle
is stationary to keep the high voltage battery
charged.
Gliding
If the gas pedal is not pressed and the D posit ion
is selected, the combustion engine remains
turned off up to speeds of approximately 99 mph
(160 km/h) . Driving conservative ly like th is can
reduce fuel con5umption .
Energy recovery (recuperation)
When braking, the electric motor will act as a
generator creating e lectr ic energy that is then
sto red in the high voltage battery. This also oc
curs when the vehicle is coasting or driving down
hi ll. The combustion engine is automat ica lly
turned off in this case .
Tips for Driving Efficiently with your Hybrid
Appl ies to: ve hicles w ith hyb rid drive
Driving situa- Conditions
tions
- Shift into the D position .
Starting from a -
Release the brake pedal. The vehicle is braked with
the electric motor by
applying early and even pressure to the brakes
and using short pedal movements
¢ page 101,
fig. 116 @. By doing this, a large amount of the
kinet ic energy is recovered and may be stored as
electric energy in the high voltage battery. Dur
i ng heavy brak ing , the conventional brakes are al
so act ivated
¢ page 101, fig . 116 @.
The energy recovery is shown in the MMI display
¢page 107 .
Automatic start of the combustion engine
Various operating conditions cause the combus
tion eng ine to start automatically:
- Th e high voltage battery charge level is low.
- Th e temperature of the combustion engine is
low .
- Th e temperature of the catalytic converter is
low .
- T he power output needed for the A/C system is
high.
- The vehicle speed is high .
- The vehicle acceleration is high .
- The incline is steep .
- High charge level for the high voltage battery
when coasting. In this case, the high voltage battery cannot absorb any more energy and so
the electric motor cannot slow down the veh i
cle. The combust ion engine turns o n (engine
brake) . In this situation the high voltage bat
t ery w ill show a Max charge.
Vehicle behavior
In the D posit ion, the hybrid system adapts
to the driving situat ion by automatically
stop -
Only press moderately on the ac- sw
itch ing between the combustion engine
and e lectr ic drive types or by combining
celerator pedal.
them.
104
...
CD
CD
.... N ,-... N .... 0 0 C<'. 00
Gasoline additives
Applies to: vehicles with gasoline engine
A major concern among many auto manufactur
ers is carbon deposit build-up caused by the type
of gasoline you use.
Although gasoline grades differ from one manu
facturer to another, they have certain things in
common. All gasoline grades contain substances
that can cause deposits to collect on vital engine parts, such as fuel injectors and intake valves . Al
though most gasolin e brands include additives to
keep engine and fuel systems clean, they are not
equally effe ctive.
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 depos its can rob your en
gine of peak performance.
CD Note
- Damage or malfunction 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 diesel eng ine
Always use ULSD (Ultra Low Sulfur Diesel) No. 2.
The ULSD No . 2 meets the ASTM 0975.
Diesel fuel with concentrations of biodiesel high
er than S % such as 811,820 or 8100 are strictly prohibited.
Service station fuel pumps are labeled with 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 dis
pensed before filling up your vehicle .
ULSD No . 2 may not be available 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. Depending on the season, gas
stations provide ULSD No.
2 that flows better in
cold temperatures so tha t you can continue oper
ating your vehicle as usual.
CD Note
- Your vehicle's diesel engine was designed
soley for use with ULSD No.
2. Therefore,
never use gasoline, heating oil, other fuels
or flow improvers . These contain substances
that will severely 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 Audi Service Facility for assistance.
These fuels contain substances that can se
verely damage the fuel system and the en gine if the engine is started .
Refueling
Fuel filler neck
The fuel filler neck is located on the right rear
side panel behind the fuel filler flap.
If the power locking system should fail, you can
still open the flap manually -for detailed instruc
tions see
¢ page 213.
You can find the fuel tank capacity of your vehicle
in
¢ page 273.
The label on the inside of the fuel filler flap tells
you the correct fuel for your vehicle. For more in
format ion about fuel specificat ions, see
¢ page 209.
Your vehicle fuel tank has an on-board refuelling
vapor recovery system. This feature helps to pre
vent fuel vapors from escaping from the tank and polluting the environment while you refuel your
vehicle. In order to fill the tank properly while
protecting the environment, please follow this
refueling procedure carefully.
211
Checking and Filling
-Always follow the operating instructions
provided by the battery charger manufactur
er when charging your battery.
- 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 which were frozen .
The battery housing may have cracked and
weakened when 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 battery is explosive .
- To reduce the danger of explosion, never
connect or disconnect charger cables while
the charger is operating .
- Fast charging a battery is dangerous and should only be attempted by a competent
technician with the proper equipment .
- Battery acid that may spill during charging should be washed off with a solution of
warm water and baking soda to neutralize
the acid.
(D Note
Never use a fast charger as a booster to start
the engine. This will seriously damage sensi
tive electronic components, such as control
units , relays , radio, etc., as well as the battery
charger.
Battery replacement
The new battery must have the same specifica
tions and dimensions as the original equipment
battery.
Intelligent energy management in your vehicle is
responsible for distributing the electrical energy
throughout your vehicle
~ page 192. The intelli
gent energy management system will keep the
engine battery charged better then vehicles with
out this system. To mak e sure the additional
electrical energy is available once again after you
have changed the battery, we recommend that
you install batteries of the same type and manu facture only (the same as those installed at the
time your vehicle was delivered) . Specifications
228
are listed on the battery housing. Your author
ized dealer must cod e the battery in the energy
management system to enable you to use the en
ergy management functions correctly after re
placing the battery.
If it is not possible to use a battery of this type,
the new battery must have the same capacity,
voltage (12 volts), amperage, construction and plug sealing.
When installing the battery, make sure the igni
tion and all electrical consumers are turned off.
([) Note
- Make sure the ventilation hose on the side
of the battery is connected, otherwise
fumes or battery acid can leak out.
- Vehicles with the Start-Stop-System* are
equipped with a special cycle-proof AGM
battery. Installing a different type of bat
tery can cause problems in the vehicle elec
trical system. When replacing the vehicle battery, always install one with the same
specifications as the original battery.
@ For the sake of the environment
Because of the problem of proper disposal of
a battery, we recommend your authorized
Audi dealer change the battery for you. Bat
teries contain sulfuric acid and lead and must
always be disposed of properly in compliance
with all environmental regulations. Disposing
of vehicle batteries improperly is
very danger
ous to the environment.
Tech nical data
Gasoline engines
QS 2.0, 4 cylinder
Maximum output SAE net hp@ rpm 220 @ 4450 -6000
Max imum torq ue SAE net lb-ft@ rpm 258@ 1500 - 4300
Displacement CID (cm
3
) 121.1 (1984)
Engine oil with filter change
1>
Fuel Premium unl ead ed (9 1 A KI) c::> page 209, Fuel
or Bio-ethanol (E85 ) c::> page 210, Ethanol fuel (Bio-etha-
no[) .
QS 2.0 hybrid, 4 cylinder
Maximum output SAE net hp@ rpm 211 @4300 -6000
Maximum torque SAE net lb-ft@ rpm 258 @ 1500 - 4200
Displacement C
ID (cm
3
) 1 21.1 (1984)
Engine oil with filter change
1
)
Fuel Premium unleaded (91 AKI) , c::> page 209, Fuel
Electr ic output (short-term)
hp 54
E lectr ic to rque (short-te rm) lb-ft
155
Total output (short-term) hp 245
T otal torq ue (short-term)
lb-ft 354
Battery type Lithium-ion
Battery energy conten t kWh 1.3
QS 3.0, 6 cylinder
Max imum ou tput SA E net hp@ rpm 2
72@ 4780 -6500
Maximum torque SAE net lb-ft@ rpm 295 @2150 -4780
Displacement C
ID (cm
3
) 1 82 .8 (2995)
Engine oil with filter change
1l
Fuel Premium unleaded
(91 AKI) ,
c::> page 209, Fuel
SQS 3.0, 6 cylinder
Maximum ou tpu t SA E ne t hp@ rpm 354@ 6000
-6500
Max imum torq ue SA E net lb-ft@ rpm 347 @4000 -4500
Displacement C
ID (cm
3
) 1 82.8 (2995)
E ngine o il with f ilter change
1l
Fuel Premium unleaded
(91 AKI) ,
c::> page 209, Fuel
274