heating AUDI R8 SPYDER 2012 Owners Manual

12 Instrum ent s and w arn ing /indic ato r light s
Safety belt
•
Check engine oil level
¢page 14
¢page 18
ii
Generator./
Engine oil sensor malfunction
¢page 14
¢page 18 '
D
Engine oil pressure too low
•
Battery voltage too h igh or too low
¢page 14
¢page 18
Engine coolant level too low/
II
Low fuel level
engine coolant temperature too
¢page 18
high¢ page 15
m
Windshield washer fluid level low
Yellow indicator lights ¢ page 18
Yellow symbols indicate a priority 2 ma lfunc-
~:)
Defective light bulb
tion -Warning!
¢page 18
11
Convertib le top ope ration
•
USA model s: Defective brake light
¢page 15
¢page 18
I]
Electronic Stability Control (ESC) ./
6
Canada models: Defective brake
¢page 16 light¢ page 18
-
I
Electronic Stab ility Control (ESC) ./
m
Light/rain sensor defe ctive (a utomat-
¢ page 16 ic headlights)* defective ¢ page 19
~ USA models: anti-lock brake system
(ABS) ./ defective ¢ page 16
B
Audi magnetic ride
¢page 19
•
Canada model s: anti-lock brake sys-
E
Rear spoiler./
tern (ABS)./ de fec tive ¢
page 16
¢page 19
•
Worn brake pads
~
USA model s: Speed warning 1
¢page 17
¢page29
g
Tire pressu re too low
•
Canada models : Speed warning 1
¢page 201
¢page29
I Tire pressure monitoring system
~
USA models: Speed warning 2 111115' 200
¢ page
¢page29
rm
Electronic power con trol ./
Canada models : Speed warning 2 ¢page 17
•
¢page29
B
USA models: Malfunction Indicator
Lamp (MIL)¢
page 17 Selector lever defective*
No reverse gear*
g
Canada models: Ma lfunction lndica-¢page 19
tor Lamp (MIL) ¢ page 17 ffl;O Clutch is overheating*
.,
Engine speed limitation* ¢page 19
¢page 17
R
Gearbox malfunction*
¢page 19

Instrument s and warnin g/indic ator ligh ts 17
loss of vehicle control and an accident.
Have your vehicle repaired immediately
by your authorized Aud i dealer or a quali­
fied workshop . Drive slowly and avoid
sudden, hard brake applications.
- Canada models: If the brake warn ing
light ., the
DJ warning light and the
ABS wa rning light
rii] come on together,
the rear wheels could lock up first unde r
hard bra king. Rear wheel lock-up can
cause loss of vehicle control and an acci­
dent. Have yo ur vehicle repaired immed i­
ately by your authorized A udi dealer or a
qualified workshop . Drive slowly and
avoid sudden, hard brake applicat ions.
(0 ) Worn brake pads
r;J Check b rak e pads!
If the warning light illum inates, immediately
contact your authorized A udi dealer or quali­
fied workshop to have all brake pads inspect­
ed. On USA models the warning light
r;J
comes on together with the war ning light
- · Both sets of brake pads on an axle
must always be replaced at the same time .
A WARNING
Driv ing with bad brakes can cause a coll i­
sion and serious personal injury .
- If the warning light
r;J and the warning
light -
1l with the message Brake
p ad s!
comes on in the i nstr ument cluster
display, immedia tely contact your au­
tho rized Audi dea le r or qualified work­
shop to have a ll brake pads checked or
replaced if necessary.
EPC Electronic power control
This warning/indicator light monitors the
electronic power control.
The ~ warn ing/ indica to r light ( Elect ronic
P ower Control) illumina tes when you swi tch
on the ignition as a function check.
1) - : USA mod els only
-
(D Tips
If this warn ing/indicator light illuminates
while yo u are driving, then there is a mal­
funct ion in the engine electronics. Have
the malfunct ion corrected as soon as pos­
s ible by your authorized Audi dealer or
qualified workshop .
~ Malfunction Indicator Lamp (MIL)
The Ma lfunction Indicator Lamp (MIL) is pa rt
of the On-Board Diagnostic (OBD II) system.
T he symbo l
lffl ligh ts up when the ignit ion is
turned on and will turn off after the eng ine
has started and has settled at constant id le
speed. This indicates that the MIL is working
proper ly.
T he warning light ill uminates when there is a
malfunction in the engine electronic system .
Contact your authorized Audi dea ler and have
the malfunct ion corrected.
An improperl y clo sed fu el filler cap ma y als o
c a use the MIL light to illuminate
¢ page 166 .
For more information ¢page 22.
!?') Engine speed limitation
Ma ximum 6000 RPM
The eng ine speed is automatically limited to
6000 RPM. This protects the engine from
overheating .
The eng ine speed limitation
(ll deactivates
once the eng ine is no longe r in the cr itica l
temperature range and yo u have re leased the
acce le rator pedal once.
(D Tips
When co ld, the engine speed is limited to
6000 RPM (w ith the
VlO engine) or
7000 R PM (with the VB engine) to protect
the engine. The limit is deactivated once
the oil temperature rises above 140 °F

Instruments and warning/indicator lights 19
Contact your authorized Audi dealer for assis­
tance if necessary.
@ Tips
The brake light switch is only inspected as
pa rt of the functional check after the en ­
gine is started.
@ Light/rain sensor defective
Applies to vehicles: with automatic headlights
The indicator light indicates a defect in the
automatic headlights/automatic wiper sys ­
tem.
If the symbol illum inates, the light sensor has
failed. For safety reasons, the low beams are
turned on permanently with the switch in
AU­
TO. However, you can continue to turn the
lights on and off using the light switch. In the
case of a defect in the rain sensor, the wind­
shield wiper lever functions are still available .
H ave the light/ra in sensor checked as soon as
possible at an author ized Audi dealer.
; Audi magnetic ride
The indicator light monitors vehicle damping.
The indicator light E ill uminates when the ig­
nition is switched on as
a function check.
(D Tips
If the ind icator lamp illuminates while you
are driving, there is a malfunct ion in the
veh icle damping. The chass is should be in­
spected immediately by an authorized Au­
di dealer.
-:;J. Rear spoiler
The warning/indicator light monitors the
electrically retractable rear spoiler .
The warning/indicator light Ii! has the follow­
ing functions:
-It comes on for about 3 seconds as a func­
t ion check when the ignition is switched on.
- It comes on if there is a ma lfunction in the
electrically retractable rear spoiler . Additional
information about the electr ica lly
retractable rear spoiler
r:;, page 144.
,.YI F{ Selector lever defective
Applies to vehicles : with R tronic
g Ii] Selector lever defective! No reverse
gear!
If the symbols are i lluminated, there is a mal­
function in the R tronic selector lever . These­
l ector lever d isp lays go out or flash. It is not
poss ible to engage reverse gear. If you have
been shifting the transm iss ion manually, it
switches to automat ic operation.
You can continue to shift the transmission manually. From the neutral position N, en­
gage first gear by tapp ing the shift button
0
o n the steering wheel. Then the transmission
remains in manual operat ion and you can se­
lect the gears using the s hift buttons.
Have the selector lever checked as soon as
poss ible at an authorized Aud i dealer or other
qualified workshop .
i~Jf Clutch is overheating
Applies to vehicles:
ffl O Clutch: Overheating possible. See own­
er's manual.
If the symbols are i llum inated, the clutch is
ove rheating and could be damaged if you con­
tinue to drive.
Stop your vehicle and allow the engine to run
at idle for several m inutes . This w ill cool the
clutch.
0 Gearbox malfunction
App lies to vehicles: wit h R tro nic
In the event of a system malfunction, R tronic
switches to emergency ope rat ion mode.
[O) Gearbox malfunction! You can continue
driving
You can continue to drive the vehicle. See an authorized Aud i dealer or other qualified
workshop at the next opportun ity . ..,.

Warm and cold Climate controls
Controls
W arm and cold 65
The climate controls automatically maintain the selected temperature in the vehicle interior
throughout each season .
Fig. 79 Climate contro ls
We recommend the following sett ing :
• Rotate the knob¢
fig. 79@ to the right to
switch on the air conditioning .
• Set the temperature to 72
°F (22 °().
• Press the !AUTO !¢ fig . 79 button .
Using the previously recommended setting is
the quickest way to achieve a comfortable cli ­
mate in the vehicle . Th is setting shou ld there­
fore only be changed when persona l comfort
l eve ls o r ce rtain circumstances requ ire it .
The climate controls are a combination of au ­
tomatic heating and ventilation systems and a
cooling system which dehum idifies and coo ls
the air inside the vehicle .
The climate controls automatically maintain a temperature once it has been set. The tem­
pe rat ure of the air from the v ents, fan speed
(air volume) and ai r distribu tion a re also auto ­
mat ica lly adjus ted . The system a lso takes into
account strong s unshine so that manua l ad ­
justment is not necessary . So in almost all
cases,
automatic mode offers the best cond i­
tions for the comfort of the occupants at all
times of the year ¢
page 68.
Please note:
In cooling mode, relative humidity in the inte­
r ior is reduced . This prevents the w indows
from fogg ing up . When outside temperatu res
ar e l ow (temperat ures below freezing), the air
cond it ion ing (compressor) switches off auto­
matically - a ir in the vehicle interior is not de­
humid ified.
When relative hum idity and tempera tures
outside are high,
c onden sate can drip from
t he a ir cond ition ing evaporator and form a
poo l of w at er unde r the ve hicle. This is normal
and not an ind ication of a leak!
When o uts ide temperatures are low, the fan
does not swi tch to a higher speed until the
coolant has reached an adequa te tempera­
tu re, wit h the exception of the defrost set­
ting.
When ac celera ting at w ide-open throttle, t he
air condi tioning compressor is temporar ily
swi tched off to ma intain full engine power .
In order to ensure engine coo ling under ex­
t reme engine lo ads , the compressor is switch­
ed off if coolant temperatures climb too hig h . ..,.

66 Warm and cold
Functions are set by turning the rotary knob
or switched on and
off by tapping the buttons.
The LED in the buttons illuminates when the
function is active.
Button(s) Meaning Page
Rotary knob Temperature ¢ page 66
CD selection
Switch air con-
Rotary knob ditioning on/
¢page 67
@ ~ off
Fan
Rotary knob Air distribu-
¢ page 67
® tion
~ Defrost ¢page 68
~
Rear window ¢page 69
defogger
I Heated seat
I-"' +I driver/passen-¢page 69
ger side*
~ Recirculation ¢ page 68
l(g]
Switch on
cooling sys-
¢page 68
I tern
Pollutant filter
The pollutant filter (particle filter) ensures
that contaminants in the outside air (such as
dust or pollen) are greatly reduced or stop­
ped. The air is also filtered in recirculation
mode.
The pollutant filter element must be changed
according to the intervals specified in the maintenance schedule so that the air condi­
tioning system's performance is not adversely
affected.
If the filter 's effectiveness is weakened by
driving the vehicle in areas with heavily pollut­
ed outside air, the filter element should also
be changed between the listed services.
Energy management
To prevent the battery from being discharged
and to restore the balance of energy, compo­
nents which require large amounts of energy
are temporarily cut back or switched
off
¢ page 147. Heating systems in particular re­
quire a great deal of energy. If you notice , for
example, that the rear window heater is not
heating, then it has been temporarily cut back
or switched
off by energy management.
These systems are available again as soon as
the energy balance has been restored.
A WARNING ,..__
For safety reasons, it is important that all
windows are free of ice, snow, and conden­
sation. Only then is good visibility ensured.
Please familiarize yourself with the correct
operation of the air conditioning and how
to dehumidify/defrost the windows.
@ Note
- If
you suspect that the climate controls
have been damaged, switch the system
off to avoid damaging it , and have it in­
spected by an authorized Audi dealer.
- Audi climate control system repairs re­
quire special expertise and the proper
tools. You should contact an authorized
Audi dealer in the event of malfunctions.
(D Tips
-To avoid adversely affecting heating and
cooling performance and to prevent con­
densation on the windows, the air intake
in front of the windshield must be free of
ice, snow, and leaves .
- Climate control works most effectively if
the windows are closed. However, if the interior of a parked vehicle is extremely
hot from the sun's rays, briefly opening
the windows can speed up the cooling
process.
Setting temperature
.,. Turn the rotary knob CD¢ page 65, fig. 79
to the desired temperature setting.
To set a lower temperature, turn the rotary
knob to the left. To set a higher temperature,
turn the rotary knob to the right. There are .,..

an authorized Audi dealer when there is an
operating prob lem.
Using the climate controls economically
Economical use of the climate controls helps
to save fuel.
When climate con trol is wor king in cool ing
mode, engine performance is red uced and
fuel consumption is affected. To keep the time
the air conditioning is on as short as possib le,
you shou ld do the fo llow ing:
.,. If you wo uld like to save f uel, sw itch the air
conditioning off .
.. If you open the windows whi le driving,
switch the air conditioning off.
.,. If the vehicle is extremely hot due to the
heat of the sun, briefly open doors and win­
dows.
@ For the sake of the environment
When you save fuel, you reduce em iss ions
from the vehicle.
Rear window defogger
The rear window defogger clears the rear win­
dow of condensation .
.. Press the Iii button <=> page 65, fig. 79 to
turn the rear window defogger on and off.
The rear window defogger wor ks only when
the eng ine is r unning. The indicator light in
the button illuminates when the rear window
defogger is turned on.
The rear window defogger is switched off au ­
tomatically after approx . 10 minutes .
@ For the sake of the environment
As soon as the rear window is clear, yo u
should switc h the rea r window de fogger
off . The reduced power consumption has a
beneficial effect on f uel consumption.
Warm and c old 69
Heated seats
Applies to vehicles: with heated seats
The seat cushion and the seatback of the
front seats can be heated electrically.
.. Press the heated seats button I-J + I
<=> page 65, fig . 79 to set the leve l of heating
desired.
The range of cont ro ls goes from 1 to 3. The
heat setting selected is shown by LEDs above
the button.
A WARNING
--=
Indiv iduals wit h reduced sens itiv ity to pa in
or temperature could deve lop burns when
using the seat heat ing funct ion. To reduce
the r isk of injury, these ind ividuals should
not use seat heating.
@ Note
To avoid damage to the heat ing e lements
i n the seats, do not kneel on the seats or
place heavy loads o n a small area of the
seat.

as a pulsing mo tio n of the brake pe dal, ac­
companied by some noises. I n order for ABS
to be a ble to operate optimally in th is range,
you must keep the brake pedal depressed -
never "pump the brakes" . You should not ex­
pect that braking d is tances w ill be
shortened
under all circumstances w ith ABS . Braking dis­
tance may even be slightly
longer , for exam­
p le on gravel or wi th fresh snow on a slippery
surface .
If a sign ificant
speed differential between the
d rive w heels on one axle is determined (for
examp le, on a su rface that is s lippery
on one
side),
t he EDS brakes the spinn ing whee l and
transfers power to the other drive whee ls.
This is done up to a speed of about 60 mph (100 km/h) . Noises from the brake system
signal that whee l spin is being controlled.
I f one wheel spins when s tarting from a com­
p lete stop because o f a different grip (for ex ­
ample , one wheel o n ice), keep your foot
hard
on the acce lerator until the veh icle starts to
move.
If the wheels spin , ASR wi ll automatically re­
duce engine torque and match power to road
su rface condit ions .
Switching on Sport mode
In specific drivi ng situa tions (e.g. La unch Con ­
trol), you switch ASR and ESC to Sport mode
by pressing the
[!I button once . The indicator
light
11 illuminates and ESP sport -Warning!
Restricted stability
appears . "Slip" is matched
to the speed. You should do this only if your
driving skill a nd traffic cond it ions permit .
Switching ASR /ESC off
In certain sit uat ions (e .g . in deep snow, on a
l oose surface, o r when rocking the vehicle
free), switch ASR and ESC off by pressing the
[ill button for more than 3 seconds. The ind ica­
tor light
II i lluminates and E SP swit ched off -
Warning! Re stricted stability appea rs . You
should do th is only if your driving skill and
traffic cond it io ns pe rmit .
Int ellig ent technolog y 143
Switching ASR /ESC on
Activate ASR/ ESC by pre ssing the [!I bu tton
again. The message
ESP on appears in the dis­
play briefly.
Brake overheating
So that the disc b rake on a b raked wheel does
not over heat, the EDS switche s off au toma ti­
ca lly if there is un usua lly severe loa ding a t
th is wheel. The vehicle is st ill drivable and has
the same properties as a vehicle without EDS .
As soon as the brake has coo le d down, EDS
swi tches on aga in automatically .
A WARNING
- Even ESC, ABS, EDS and AS R cannot over ­
come the laws of physics . You should
keep t his in m ind in particular on an icy
or wet road. If the systems intervene,
you shou ld ad just your speed immediate­
ly to road and traff ic conditions . Do not
be tempted by the increased safety pro­
vided to take risks -you risk having an
accide nt.
- Please keep in mind that the risk of an
accident is i ncreased by d riving too fast,
pa rti cularly in corners and on icy or wet
ro ads, and by drivi ng too close to the ve­
hicle ahead . Even ESC, ABS, E DS and A SR
cannot eliminate the increased risk of
having an accident.
-Apply the throttle ca re fully when accel ­
erating on a consistently s lippery sur­
face, e .g. on ice and snow . The drive
wheels can spin in spite of the EDS and thereby affect vehicle stability -you risk
having an accide nt.
- Please note that when ASR or ESC/ASR is
deactivated , the drive wheels can spin on
icy and sl ippery roads a nd the veh icle can
break away -the re is a risk of skidd ing!
(D Tips
- In the event of a defect in the rear spoil-
er system or in Audi magnet ic ride, it can
happen that ASR and ASR/ESC cannot be .,.
•
•

148 Intelligent technology
Dynamic energy management
While th e veh icle is be ing dr iven , dynamic en­
e rgy management distributes the energy gen­
erated according to the needs of the individu­
a l components . It reg ulates cons umption, so
that more electrical energy is not being used
t han is being generated and ensures an opti­
mal state of charge for the battery .
(D Tips
- But even energy management cannot
negate the limits of physics. Consider
that the power and life of a battery are li mited .
- If starting ab ility is threatened, you are
i nformed by a warn ing
<=> page 148,
Driver notification in the instrument
cluster display .
What you should know
The highest priority is given to maintaining
starting capability.
The battery is severely taxed in short-distance
d riving, in city traffic and duri ng the co ld time
of year. Abu ndant e lectr ica l energy is re­
qu ired, but only a little is g ene rated . It is also
cr itica l if t he engine is not run ning and ele ct ri­
cal componen ts ar e turned on. In th is in ­
stance energy is being consumed but none is
being generate d.
It is in precisely these si tua tions that you w ill
notice energy management actively regula t­
ing the distrib ution o f energy .
Vehicle stands for an extended period
If you do not drive you r vehicle over a period
of severa l days or weeks, elect rical compo­
n ents are grad ually cu t back o r swi tched off .
This redu ce s energy cons umption and mai n­
tains s ta rting cap abili ty over a longer period .
T a ke into considerat ion tha t when you u nlock
your ve hicle, some co nvenience func tions,
such as the remote key or power sea t adj ust ­
men t, may not be available. The convenience
f u nctions will be avai lable again when you
turn on th e ignition and start the engine. With the engine turned off
If you
listen to the radio, for examp le, w it h
t h e engine t urned off, the battery is being dis­
c h arged .
If starti ng capab il ity is jeopard ized d ue to en­
ergy consu mptio n, a mess age a ppea rs in the
drive r informa tion d isplay .
You have to start t he engine to charge the
ba tte ry.
With the engine running
Althoug h electrical energy is generated when
the vehicle is being d riven, the battery can be ­
come discharged. This happens mostly when
li ttle energy is being ge ne rated and a g reat
deal consumed a nd t he battery's state of
c h arge is not opt imal.
To b ring the energy bala nce back into equ ili­
br iu m , consume rs wh ich req uire espe cially
l ar ge amounts of ene rgy a re temporar ily cu t
ba ck or sw itched o ff. H ea ting systems in par ­
t icu lar require a grea t deal of energy . If you
not ice, for examp le, that the heated seatsat or
the heated rear window are not heating, they have been temporarily cut back or switched
off . These systems w ill be available again as
soon as the e ne rgy balance has been restored.
You w ill also notice that engine id le speed has
been increased slightly . T hi s is normal and not
a cause for concern. By increasing engine id le
speed the additional energy required is gener ­
ated and the battery is charged .
Driver notification in the instrument
cluster display
If bat tery power drops in to the range where i t
can limit the ability of the engi ne to start, this
is shown in the instrument cluster display
with the following driver message:
(•] Low battery charge: battery will be
charged while driving
T h is not ifi cat io n r eminds yo u that t he start ing
ca pabili ty of the engi ne may be lim ite d. As
soon as you s tart dr iv ing again, the battery .,..

150 Driving and en vironm ent
Driving and
environment
Break-in period
A new vehicle must be broken in, and the break-in per iod should be 1,500 miles (2,500
km) . Do not use full acceleration for the first
600 miles (1,000 km) and do not exceed the
maximum eng ine speed of 6,000 rpm You
m ust also not use fu ll acce lerat ion between
600 and 1,200 m iles ( 1,000 to 2,000 km).
Fr om 1,200 to 1 ,500 mi les (2,000 to 2,500
km), you can gradua lly increase maxim um en­
gine speed to 8,250 rpm for brief periods.
During the first ho urs of operation, there is
g reater friction in the engine and the trans­
mission than later when a ll the moving parts
have broken in.
The way yo u drive duri ng the first 1 ,500 miles
(2,500 km) affects engine quality. If you drive
at moderate engine speeds thereafter, partic ­
u lar ly when the engine is cold, yo u reduce en ­
gine wear and increase the potential mileage
of the engine.
Do not drive at RPMs that are too low. Shift
down when the engine is no longer running
"smoothly". Extreme ly high RPMs are gov­
erned automa tically.
Driving through water
on roads
Note the following to avoid vehicle damage
when dr iving t hrough water, for example on
flooded roads:
- The water must not be any higher than the
bottom of the vehicle body .
- Do not drive faster than wa lking speed .
.&_ WARNING
After driving through water, mud, slush,
etc., the brakes may be slow to take effect
because of wet b rake roto rs and pads. Dry
t he brakes fi rst by bra king carefully to re­
sto re the full braking effect .
-
(D Note
Vehicle components such as the eng ine,
transmission, suspension or e lectrical sys­
tem can be severe ly damaged by dr iv ing
through water .
@ Tips
-Check the depth of the water before d riv­
ing through it.
- Do not stop the vehicle, drive in reverse
or switch the engine off when driving
through water.
- Keep in mind that oncoming vehicles
may create waves that raise the water
level and make it too deep for your vehi­
cle to drive through safely .
- Avo id driving through salt water because
it can cause corros ion.
Catalytic converter
You must use lead-free gasoline in your veh i­
cle, otherwise you will destroy the ca talyt ic
converter .
Never run the fuel tank completely dry; their­
regular fue l supply could cause misfires . This
allows unburned fue l into the exhaus t system,
poss ibly resulting in overheating and damage
to the catalytic converter .
.&_ WARNING ,-
-Do not park or operate the vehicle in
a reas where the hot exha ust system may
come in co nta ct with dry g rass, brush,
fue l spills or o ther material which can
cause a fire.
- Do not app ly addition al under coating or
r u stproofing on or nea r the exhaust
manifold, exhaust pipes, catalytic con­
verter or heat shields . Dur ing driving, the
substance used for undercoating could
overheat and cause a fire.
(D Note
To ensure efficient o peration of the Emis­
s ion Control System :

A WARNING
-While top ping off, the oil must not come
in contact with hot engine pa rts -fire
hazard!
- The oil fille r cap must be prope rly se­
cured to preve nt o il from being sprayed
on the hot engine and exhaust system
when the eng ine is r unning -fire hazard!
- If your skin has come in contact w ith the
engine oil, yo u must subseque ntly
cl eanse it tho roughly.
(D Note
- The oil level must not be above range G)
- danger of conver ter or eng ine damage!
Co ntact an authorized Audi dea ler to
draw off oil, if necessa ry.
- Audi does not recommend the use of oil
additiv es. They may damage the engine
and adverse ly affec t your New Vehicle
Warr an ty.
@) For the sake of the environment
- Under no ci rcumstances ca n the o il come
i n cont act w it h the sewage network o r
the soil.
- Observe and fo llow lega l regu lations
when d isposing of empty oil con taine rs.
Engine cooling system
Coolant
The coolant provides cooling for the engine.
The percentage of the coolant additive deter­
mines the freeze protection of the coolant in the winter.
The cooling system is sea led and generally re­
q ui res 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 o f water and the man ufacture r's g ly­
col-based coolant additive Gl3 ant ifreeze
w ith a nticorros ion add itives (50% for USA
models; 60% for Canad ian models). This mix­
ture bot h assures the n ecessary frost protec-
Checkin g and fillin g 175
tion and protects meta l components in t he
engine's cooling system from corrosio n and
sca ling . It a lso raises the boiling point of the
coolant.
Do not reduce the concen tration of the cool ­
ant in the s ummer by adding p lai n wate r.
The
proportion of coolant additive must be at
least 50 % but not more than 60 %
to main­
ta in antifreeze protect io n and coo ling eff ic ien­
cy. If the coo la nt frost protection is too low,
t h e coolant could freeze and damage the vehi­
cle heating and engine cooling system .
For year-round driving, antifreeze is added at
the factory fo r temperatures dow n to:
- -31°F( -35°C)USA
- -40 °F ( -40 °C) Canada .
A WARNING ~
Before you chec k anything in the engi ne
compartment, always read and heed a ll
WARNINGS¢
& in Working in the engine
compartment on page 169.
-
(D Note
- Before winter sets in, have the coo lant
checked to see if the coolant additive in
your vehicle is sufficient to meet the cli ­
mate condit ions. This is especially impor­
t ant if you l ive i n a region where the win-
t er is extremely cold. If necessary, in-
cr ea se t he p ropo rtion of coo lant add itive
t o 6 0%.
- Whe n ad ding coolant addi tiv e to yo ur
c oo ling sys te m , reme mbe r:
- We recommend using on ly coo lant ad­
d itive Gl2 ++ or Gl3 (check the labe l)
for your vehicle. This coolant additive is ava ilable at authorized Aud i dea lers .
Othe r ty pes of antifreeze ca n sig nifi­
ca ntly reduce cor ros io n protec tion . The
r esu lting co rrosion can cause a loss of
coo lant a nd serio us e ng ine da mage.
- Do not add any type of rad iator l eak seal­
ant to yo ur vehicle's engi ne coo lant .
A dd ing radia to r r epair f luid m ay adverse-
ly affect the f unction and pe rformance of .,.. •
•