
238 Checking and filling
Checking the engine oil level
Fig. 197 Disp lay: Oi l level indicator
Read oil level
• Park your vehicle so that it is horizontally
level.
.. Shut the engine off when it is at operating
temperature.
.. Switch only the ignition back on.
• Wait approx. two minutes.
> Select: ICARI function button> Oil level. Or
> Select: ICARI function button> Car sys-
tems *
control button > Servicing & checks >
Oil level.
• Read the oil leve l in the radio or MMI* Dis
play
r::;:, fig. 197. Add engine oil if the bar of
the oil level indicator is near "Min"
r::;:,page 238.
The oil level needs to be checked at regular in
tervals . The best times to do this are whenev
er you refuel and prior to long trips .
Depending on the way the vehicle is driven
and the operating conditions, oil consumption
can be up to a 1/2 quart per 600 miles (0.5
li
ter per 1,000 km). Consumption may be high
er within the first 3,000 miles (5,000 km).
@ Tips
The oil level indicator in the radio or MMI*
Display is only an information display. If
the oil level is too low, a minimum oil
warning appears in the instrument cluster.
Add oil
r::;:, page 238. If the hood has been
opened, the current oil level is shown in
the instrument cluster the next time the
ignition is switched on.
Adding engin e oil 't:::r.
Fig. 198 En gine compart men t: cover on the engine oil
fille r neck
Before you check anything in the engine com
partment,
always read and heed all WARN
INGS
r::;:, .&. in Working in the engine compart
ment on page 233.
"' Unscrew the cap 't=1'l to the engine oil filling
hole ¢
fig. 198, r::;:, page 235, fig. 196 .
• Carefully top off with the appropriate oil in
0.5 liter doses.
.. Check the oil level again after two minutes
r::;:,page238 .
"'Top off the oil, if necessary.
"' Screw the cap back on the filling hole.
A WARNING
=
-While topping off, the oil must not come
in contact with hot engine parts - fire
hazard!
- The oil filler cap must be properly se
cured to prevent oil from being sprayed
on the hot engine and exhaust system
when the engine is running -fire hazard!
- If your skin has come in contact with the
engine oil, you must subsequently
cleanse it thoroughly.
(D Note
- Check the oil level using the radio or the
MMI*. If the message
Please reduce oil
level
appears, contact your authorized
Audi dealer or other qualified workshop
to have excess oil extrac ted if necessary.
-Audi does not recommend the use of oil
additives. They may damage the engine ..,..

240 Checking and filling
Engine cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro
tects the engine from freezing in the winter .
The cooling system is sealed and generally re
quires little attention.
The cooling system has been filled at the fac
tory with a permanent coolant which does not need to be changed. The coolant consists of a
mixture of water and the manufacturer's gly
col-based coolant additive Gl3 ant ifreeze
with anticorros ion add itives (SO% for USA
models; 60% for Canadian models). This mix
ture both assures the necessary frost protec
tion and protects metal components in the
engine's cooling system from corrosion and
scaling. It also raises the boiling point of the
coolant.
Do not reduce the concentration of the coo l
ant in the summer by adding plain water .
The
proportion of coolant additive must be at
least 50% but not more than 60%
to main
tain antifreeze protection and cooling efficien
cy. If the coolant frost protection is too low,
the coolant could freeze and damage the veh i
cle heating and engine cooling system .
For year-round driving, antifreeze is added at
the factory for temperatures down to:
- - 31 °F ( - 35°() USA
- - 40°F ( - 40°() Canada .
A WARNING
Before you check anything in the engine
compartment, always read and heed all
WARNINGS
c:> &. in Working in the engine
compartment on page 233.
- Before winter sets in, have the coolant
checked to see if the coolant addit ive in
your vehicle is sufficient to meet the cli
mate cond itions. This is especially impor
tant if you live in a region where the w in- ter
is extreme ly cold . If necessary, in
crease the proportion of coolant additive
to 60%.
- When adding coolant additive to your
cooling system, remember:
- We recommend using only coolant ad
ditive Gl2++ or Gl3 for your vehicle.
This coolant additive is available at au
thorized Audi dealers. Other types of
antifreeze can significantly reduce cor
rosion protection. The resulting corro
sion can ca use a loss of coolant and se
rious engine damage.
- Do not add any type of radiator leak seal
ant to your vehicle's engine coolant .
Add ing radiator repair fluid may adverse
ly affect the function and performance of
your cooling system and could result in
damage not covered by your New Vehicle
Limited Warranty.
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance .
Fig. 199 Engine compartment : cover on t he coolant
expansion tank
Before you check anyth ing in the engine com
partment,
always read and heed all WARN
INGS c:> &. in Working in the engine compart
ment on page 233 .
.. Park your vehicle on a level surface .
.. Turn off the ignition .
.. Read the engine coolant level from the
coolant expansion tank
c:> fig. 199,
c:> page 235, fig. 196 . With a cold engine,
the coolant level should be between the
"MIN" and "MAX" markings. When the

24 2 Ch ecking and filling
-If you drain the coolant, it must be
caught and safely stored in a p roper
conta iner clearly marked "poison".
(D Note
- Coolant pollutes the env ironment and
could cause an engine fire . Excess coo l-
ant will be forced out through the pres
sure relief valve in the cap when the en
gine becomes hot.
- If, in an emergency, only water can be
added , the correct ratio between water
and antifreeze¢
page 240 must be re
stored as soon as possible .
@ For the sake of the environment
Drained coolant should not be reused. Al
ways dispose of used coolant while observ ing all environmental regulations.
Radiator fan
The radiator fan switches on automatically by
itself
The radiator fan is driven by the engine via the
V-be lt . The viscous clutch regulates the speed
of the fan accord ing to t he temperature of the
coolant.
An auxiliary electric radiator fan* switches on
a nd off depending on coolant temperature
and other ve hicle operating conditions.
After you switch the engine off, the auxiliary
fan can cont inue running for up to 10 minutes
- even with the ignition off. It can even switch
on again later by itself¢&. , if
- the temperature of the engine coolant rises
due to the heat build-up from the engine in
the engine compartment, or
- the engine compartment heats up because
the veh icle is parked in intense sunlight.
_&. WARNING
- To reduce the r isk of personal injury nev
er to uch the radiator fa n. -
The a uxiliary electric fan is temperat ure
controlled and can switch on suddenly
even when the engine is not running.
- The auxiliary radiator fan switches on a u
tomatically when the engine coolant reaches a certai n temperature and will
continue to ru n until the coolant temper
ature drops.
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
quick glance.
F ig. 2 00 Engine compart men t: cover on t he brake fluid
reservoir
Befo re you check anyth ing in the engine com
partment,
alway s read and he ed all WARN
INGS c::> ,&. in Working in the engine compart
ment on page 233.
.,. Read the brake fluid level from the b rake
fluid reservoir
c::> fig. 200, c::> page 235,
fig. 196.
The brake fl uid level m ust be be
tween the "MIN" and "MAX" markings.
T he bra ke fluid reservo ir is located at the rear
part ition o f the e ngine compartment on the
left s ide
c::> page 235.
The fluid level may drop slightly afte r some
t ime due to the a utomatic adjustment of the
brake pads. This is not cause for a larm .
If the brake fl uid level falls
considerably be
low the
"MIN" mar k, the brake war ning/ indi
cator light ( U.S. models:
1111 , Canadian
models :. will come on
c::> page 18 and
c::>page 29. Do not con tinue to operate the ve-
hicle . The comp lete brake system should be ..,.

244 Checking and filling
Vehicles not driven for long periods
If you do not drive you r vehicle over a pe riod
of severa l days or weeks, electrical compo
nents are gradually cut back or switched off.
This reduces energy consumption and main
tains starting capability over a longer period
¢page 203.
Take into consideration that when yo u un lock
your vehicle, some convenience functions, such as the interior lights or the power seat
adjustment, may not be available. The con
venience funct ions w ill be available again
when you turn on the ignition and start the
engine .
Winter operation
During the winter months, battery capacity
tends to decrease as temperatures drop . This
is because more power is also consumed while
start ing, and the headl ights, rear window de
fogger, etc., are used more often .
Avoid unnecessary power consumption, par
ticularly in city traffic or when traveling only
short distances . Let your authorized Audi
dealer check the capacity of the vehicle bat
tery before winter sets in¢
page 245. A well
cha rged battery w ill not only prevent starting
prob lems when the weather is cold , but will
a lso last longer .
Working on the battery
Be especially careful when working on or near
the battery.
The battery is located in the luggage compart
ment under the floor. Before you check any
thing in the luggage compartment,
read and
heed all WARNINGS
¢ _&..
Hybr id drive*: you can find impo rtant informa
tion about the high voltage battery under
¢page 97 .
Always heed the safety warnings , when work
ing on the vehicle battery or the vehicle elec
trical system to prevent injury.
The following WARNINGS are very
important when working on the battery:
Always heed the following WARNING SYM BOLS and safety precaution s when working
on the battery.
@) Always wear eye protection .
I>. Battery acid contains sulfuric acid_-Al
~ ways wear gloves and eye protection.
~ No
\!=51 -sparks
-flames
-smoking.
A When a battery is charged, it produces
~ hydrogen gas which is explosive and
could cause personal injury.
/G Always keep the battery well out of
V!!JI reach of children.
A WARNING "--
Whenever working on the battery or on
the electrical system, there is the risk of
in jury, accident and even fi re. Read and
heed the following WARNINGS :
- Always wear eye protection. Do not let
battery ac id or any lead particles get on
your skin or clothing. Shield your eyes .
Exp losive gases can cause blindness or
other injury .
- Ba ttery acid contains sulfuric acid. Sulfu
ric acid can ca use blindness and severe
burns .
- Always wear gloves and eye protection .
Do not tilt the battery because acid
could leak out of the ventilat ion open
i ngs.
- If you get battery ac id in your eyes or
on your skin, immediately rinse with
cold water fo r several minutes and get
med ical attention .
-If you should ingest any battery acid,
seek medical attention immediately.
- Do not expose the battery to an open
flame, electr ic sparks or an open light.
- Do not smoke.
-
1
I

-Do not interchange the positive and neg
ative cables .
- When working on the battery , be sure
not to short-circuit the terminals with
tools or other metal objects. This would cause the battery to heat up very quickly,
which could lead to damage or explosion
and personal injury.
- When a battery is charged, it produces
hydrogen gas which is explosive and
could cause personal injury .
- Always keep the battery well out of the
reach of children .
- Before work is done on the electrical sys
tem, disconnect the negative ground ca
ble .
- Before performing any work on the elec
trical system , switch off the engine and
ignition as well as any electrical equip
ment. The negative cable on the battery
must be disconnected. If you are just go
ing to replace a light bulb, then it is
enough to switch off the lights.
- Before disconnecting the battery , switch
off the anti-theft alarm system! Other
wise you will set off the alarm.
- When disconnecting the battery, first
disconnect the negative cable and then
the positive cable.
- Before reconnecting the battery, make
sure all electrical consumers are switch
ed off. Reconnect the positive cable first
and then the negative cable. Never inter
change the cables - this could start a fire!
- Never charge a fro zen or a thawed-out
battery. It could explode! If a battery has
frozen, then it must be replaced. A dis
charged battery can freeze over at 32°F
(OOC) .
-Make sure the vent hose is always attach
ed to the opening on the side of the bat
tery.
- Never use batteries which are damaged.
There is the danger of an explosion! Al
ways replace a damaged battery.
Checking and filling 245
A WARNING
California Proposition 65 Warning:
- Battery posts, terminals and related ac cessories contain lead and lead com
pounds, chemicals known to the State of
California to cause cancer and reproduc
tive problems . Wash hands after han
dling.
Q) Note
- Do not disconnect the vehicle battery
when the ignition is switched on or when
the engine is running, otherwise , you will
damage electronic components in the
electrical system.
- If your vehicle is going to stand for a
long period of time without being driven,
protect the battery from "freezing", oth
erwise it will be damaged and will then
have to be replaced.
Battery charging
Starting the engine requires a well charged
battery.
Fig. 201 Engin e compart ment: Co nn ectors for charger
and j umper cab les
Always read and heed all WARNINGS below
¢ .&. and ¢,&. in Working on the battery on
page 244.
~ Hybrid drive*: read the important informa
tion concerning a dead high voltage battery
under
¢ page 105.
~ Turn off the ignition and all electrical con
sumers.
~ Make sur e the area is well ventilated when
you charge the battery . ..,.

When the malfunction indicator is illuminat
ed, the system may not be able to detect or
signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of rea
sons, including the installation of replace
ment or alternate tires or whee ls on the veh i
cle that prevent the TPMS from funct io ni ng
p roperly . Always check the T PMS malfunct ion
tellta le afte r replacing one or more t ires or
wheels on your veh icle to ensure that the re
p lacement or a lternate tires and wheels allow
the TPMS to continue to function properly .
Tire pressure indicator appears
Applies to vehicles: with tire pressure monitoring system
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction.
Fig. 208 Display : underinflatio n warning
Using the ABS sensors, the tire pressure moni
toring system compares the t ire tread circum
ference and vibration characteristics of the in
d iv idual tires . If the pressure decreases in one
or mo re tires, th is is indica ted in the instru
ment clus ter with a
IE warning symbol and a
message ¢
fig. 208. The driver message in the
display goes out after 5 seconds. The driver message can be displayed again by pressing
the
! SET ! button. If only one tire is affected,
the display will indicate its pos ition.
The ti re press ure monitoring system must be
reset via radio or MMI* each time the pres
sures are adjusted (e.g . when switching be
tween partia l and full load pressure) or after
changing or replacing a t ire on your vehicle
¢
page 268 . The TPMS indicator only moni
tors the tire pressure that you have prev iously
Tire s an d wheel s 267
stored . You can find the recommended t ire
pressures for yo ur vehicle on the label on driv
er's side B-pillar ¢
page 252.
Tire tread circum ference and vibration charac
teristics can change and cause a tire pressure
warning if:
- the t ire p ress ure in one or more tires is too
low,
- t he t ire has structural damage,
- the t ire pressure was changed, wheels rotat-
ed or replaced but the TPMS was not reset
¢ page 268.
Warning symbo ls
IE Loss of pressure in at least one tire¢.&,.
Check the tire or tires and replace or repa ir if
necessary. The
IE indicato r light in the inst ru
ment cluster a lso illuminates
c::!;> page 14.
Check/correct the press ures of all fou r tires
and reset TPMS via radio o r MMI*.
119;~, (T ir e Pressure Mon itoring System) Tire
pre ssure: Syst em malfun ction!.
If 11Nlf:1 appears afte r switching the ignition
on or while driving and the
IE indicator light
i n the instrument cluster blinks fo r approx i
mately one minute and then stays on, there is
a system malf unct ion.
Attempt to store the correct tire pressure
¢ page 268 . If the ind icator light does not
tu rn off o r if it turns on sho rtly the reafter, im
med iate ly dr ive your vehicle to a n author ized
Audi dealer or au thorized repair faci lity to
have the malfunc tion corrected .
A WARNING
-=
-If the tire pressure indicator appears in
the instrument cluster display, one or
more of your t ires is significant ly under
inflated. Reduce your speed immediately
and avoid any hard steer ing or braking
maneuvers. Stop as soon as possible and
check the tires and their pressures. In
flate the tire p ressure to the prope r pres
sure as indica ted on the vehicle's tire
pressu re labe l
¢page 252. Driving on a
significantly under-i nflated tire causes
•
•

268 Tires and wheels
the tire to overheat and can lead to tire
failure. Under-inflation also is likely to
impair the vehicle's handling and stop
ping ability.
- The driver is responsible for maintaining
the correct tire pressures. You must
check the tire pressures regularly.
- Under certain conditions (such as a spor
ty driving style, winter conditions or un paved roads), the pressure monitor indi
cator may be delayed.
-Ask your authorized Audi dealer if run flat tires may be used on your vehicle.
Your vehicle registration becomes invalid
if you use these tires when not permit
ted. Damage to your vehicle or accidents
could also result.
@ Tips
- The tire pressure monitoring system
stops working when there is an ESC/ABS
malfunction.
- Using snow chains may result in a system
malfunction.
- The tire pressure monitoring system on
your Audi was developed using tires with the "AO" or "RO" identification on the
tire sidewall¢
page 259. We recom
mend using these tires.
Reset tire pressure monitoring system
Applies to vehicles: with tire pressure monitoring system
If the tire pressure is adjusted, wheels are ro
tated or changed, the TPMS must be reset via
radio or MMI*.
11> Befo re resetting the TPMS, the current pres
sures of all four tires must correspond to
the specified values. Adjust the tire pressure
and reset the pressure in the tire pressure
monitoring system according to the load
you are carry ing
¢page 252.
11> Turn on the ignition.
11> Select: ICARI function button > Tire pres
sure monitoring
> Store now . Or
i,. Select: ICARI function button > Car sys
tems *
control button > Servicing & checks >
Tire pressure monitoring > Store tire pres
sures.
@ Tips
Do not store the tire pressure if there are
snow chains on the tire.

282 Fuses and bulbs
I
-
No. Consumer
2 Wi-Fi
3 MMI/Radio
4 Instrument cluster
5 Gateway (instrument cluster
control
module)
6 Ignition lock
7 Light switch
8 Climate control system blower
9 Steering column lock
10 Climate control system
11 Terminal 30 diagnostic connec-
tor
12 Steering column switch module
Right luggage compartment fuse
assignment
Amps
5
5/20
5
5
5 5
40
5
10
10
5
Fig. 226 Right luggage compartment: fuse panel with
plastic cl ip
No. Consumer Amps
Fuse panel
@ (black)
1 Luggage compartment lid con-
30
trol module
2 Trailer control module 15
3 Trailer control module 20
4 Trailer control module
20
-No. Consumer Amps
5 Electromechanical
parking
5
brake
•
6 Electronic damping control 15
7 Electromechanical parking
30
brake
8 Rear exterior lighting 30
9 quattro Sport
35
10 Rear exterior lighting 30
11 Vehicle electrical system control
20
module
12 Terminal 30
5
Fuse panel c (brown)
1 Luggage compartment lid con-
30
trol module
2 12-volt socket, cigarette lighter
DCDC converter path 1 or high
3 voltage battery blower (hybrid 40
drive)
4 DCDC
converter path 2, DSP
30
amplifier, radio
7 Electromechanical
parking
30
brake
Right front door (window regu-
9 later, central locking, mirror, 30
switch, lighting)
11 Rear
right door (window regula-
30
tor, switch, lighting)
12 Cell phone prep 5
Fuse panel© (black)
1 Right front seat heating
15
2 Automatic dimming rearview
5
mirror
3 Instrument panel terminal 30
4 MMI 7,5
Rearview camera
Rear window heater
8 Rear Seat Entertainment
12 High voltage battery (hybrid
drive)