sensor AUDI A8 2015 Owner's Guide
[x] Cancel search | Manufacturer: AUDI, Model Year: 2015, Model line: A8, Model: AUDI A8 2015Pages: 312, PDF Size: 79.18 MB
Page 173 of 312

-Objects between you and the airbag can
increase the risk of injury in an accident
by interfering with the way the airbag
unfolds or by being pushed into you as
the airbag inflates .
- Never place or attach accessories or
other objects (such as cup holders , tel
ephone brackets, or even large, bulky
objects) on the doors, over or near the
area marked "AIRBAG" on the seat backrests.
- Such objects and accessories can be
come dangerous projectiles and cause
injury when the supplemental side air
bag deploys .
- Never carry any objects or pets in the
deployment space between them and
the airbags or allow children or other
passengers to travel in this position .
- Always use the built -in coat hooks only
for lightweight clothing . Never leave any
heavy or sharp-edged objects in the
pockets that may interfere with side air
bag deployment and can cause personal
injury in an accident.
- Always prevent the side a irbags from be
ing damaged by heavy objects knocking
against or hitting the sides of the seat
backs.
- The airbag system can only be trigge red
once.
If the airbag has been triggered,
the system must be replaced by an au
thorized Audi dealership .
- Damage (cracks, deep scratches etc .) to
the original seat covers or to the seam in
the area of the side airbag module must
always be repaired immediately by an au
thorized Audi dealer.
- If children are seated improperly, their
risk of injury increases in the case of an
accident ~ page 17 4 , Child Safety .
- Never attempt to modify any compo
nents of the airbag system in any way .
- In a side collision, side airbags will not
function properly if sensors cannot cor rectly measure increasing air pressure in
side the doors when air escapes through
Airbag system 1 71
larger, unclosed openings in the door
panel.
- Never drive with interior door trim pan
els removed .
- Never drive when parts have been re
moved from the inside door panel and
the open ings they leave have not been
properly closed.
- Never drive when loudspeakers in the
doors have been removed unless the
speaker holes have been p roperly
closed.
- Always make certain that openings are
covered or filled if additiona l speakers
or other equipment is installed in the
inside door panels .
- Always have work on the doors done by
an authorized Audi dealer or qualified
workshop.
Side curtain airbags
Description of side curtain airbags
The side curtain airbag sy stem can provide
supplemental protection to properly restrain
ed occupants .
Fig. 173 Side curta in a irbags, driver' s sid e: s ide cur ta in
airb ag loc ation
The side curtain airbags are located on both
sides of the interior above the front and rear
side windows ~ fig . 173 . They are identified
by the word "AIRBAG" on the windshield
frame and the center roof pillar.
T he side curtain airbag system supplements
the safety belts and can help to reduce the risk of injury for occupants' heads and upper
torso on the side of the vehicle that is struck .,.
Page 174 of 312

17 2 Airbag system
in a side collision. The side curtain airbag in
f lates in side impacts and on ly when the vehi
cle acce lerat ion reg istered by the contro l unit
is high enough. If this rate is below the refer
ence value programmed into the control unit,
the side airbags will not be triggered, even
though the car may be badly damaged as a re
sult of the collision .
It is not possible to de
fine an a irbag tr igger ing range that will cover
every possible angle of impact , since the c ir
cumstances w ill vary considerably between
one co llision and another . Important factors
include, for examp le, the nat ure (hard or soft)
of the impacting object, the ang le of impact,
vehicle speed, etc.
c:> page 172, How side cur
tain airbags work.
Aside from their normal safety function, safe
ty belts work to he lp keep the driver or front
passenger in position in the event of a co lli
sion so that the side curtain airbags can pro
vide p rotection .
The airbag system is not a subst itute for your
safety belt. Rather, it is part of the overall oc
cupant restraint system in your veh icle. Al
ways remember that the airbag system can
only help to protect you if you are wea ring
your safety be lt and wear ing it prope rly . T his
i s ano ther reason why you sho uld always wear
your safety be lts, not jus t be ca use the law re
qu ires you to do soc;,
page 143, General
notes.
It
is impor tant to remember that whi le the
side curta in ai rbag sys tem is designed to he lp
reduce the like lihood o f serious injuries, other
inj uries, for example, swelling, bruising, and
minor abrasions can also be associated wit h
these airbags upon deployment . Remember
too, these airbags w ill deploy only once and
only in certain kinds of accidents - your safety belts are a lways there to offer p rotection .
The side curtain airb ag system basic ally
consists of:
- The electronic control module and externa l
s ide impact senso rs
- The side curtai n airbags above the front and
rear side w indows - The airbag indicator light in the
instrument
panel
T he airbag system is mo nitored e lec tronically
to make certain i t is func tioning properly at all
t imes . Each time yo u sw itch on the ign ition,
t h e ai rbag system indicator light will come on
for a few seconds (self diagnostics).
The side curtain airbag is not activated:
- if the ignition is sw itched off,
- in side co llisions whe n the accele ration
measured by the sensor is too low,
- in rear-end col lisions.
A WARNING
- Safety belts a nd the airbag system will
only provide pro te ction when occup ant s
are i n the proper seating posi tion
c:> page 58, General recommendations.
- If th e airb ag ind ic a tor light~ page 18
comes when the veh icle is being used,
have the system ins pected immediately
by your authorized A udi dealer. It is pos
sible that the airbag will inflate when it
is not supposed to, or will not inflate
when it should .
How side curtain airbags work
Side curtain airbags can work together with
side airbags to help reduce the risk of head
and upper torso injuries for occupants who
are properly restrained .
Fig. 174 Illust rat ion of p rincip le : I n flated side curtai n
airbags o n th e left side
The side curtain airbags inflate between the
occupant and the windows in a side co llisi on
u, N g
± .. 03
c:> fig . 174 . ..,_
Page 177 of 312

.... N .... N
0 J:
-st: .... \!) 1.1"1
.... 1.1"1 ,-0
-Always install rear-facing child safety
seats on the rear seat.
- If you must install a rearward facing
child safety seat on the front passenger
seat in exceptional circumstances and
the
PASSENGER AIR BAG OFF light does
not come on and stay on, immediately
install the rear-facing child safety seat in
a rear seating position and have the air
bag system inspected immediately by
your Audi dealer.
_& WARNING
If, in exceptional circumstances, you must
install a forward-facing child restraint on
the front passenger's seat:
- Always make sure the forward-facing
seat has been designed and certified by its manufacturer for use on a front seat
with a passenger front and side airbag.
- Always follow the manufacturer's in
structions provided with the child safety
seat or carrier.
- Always move the passenger seat into its
rearmost position in the seat's fore and
aft adjustment range, as far away from
the airbag as possible before installing
the child restraint. The backrest must be adjusted to an upright position .
- Always make sure that the
PASSENGER
AIR BAG OFF
light comes on and stays
on all the time whenever the ignition is
switched on.
(D Tips
Always replace child restraints that were
installed in a vehicle during a crash. Dam
age to a child restraint that is not visible
could cause it to fail in another collision
situation.
Advanced front airbag system and children
Your vehicle is equipped with a front "Ad
vanced Airbag System" in compliance with United States Federal Motor Vehicle Safety
Child Safety 175
Standard (FMVSS) 208 as applicable at the
time your vehicle was manufactured.
The Advanced Airbag system in your vehicle
has been certified to meet the "low-risk" re
quirements for 3- and 6-year old children on
the passenger side and small adults on the driver side. The low risk deployment criteria
are intended to reduce the risk of injury
through interaction with the airbag that can
occur, for example, by being too close to the
steering wheel and instrument panel when
the airbag inflates . In addition, the system
has been certified to comply with the "sup
pression" requirements of the Safety Stand
ard, to turn off the front airbag for infants up
to 12 months who are restrained on the front
passenger seat in child restraints that are list
ed in the Standard.
Even though your vehicle is equipped with an
Advanced Airbag system, all children, espe cially those 12 years and younger, should al
ways ride in the back seat properly restrained
for their age and si ze. The airbag on the pas
senger side makes the front seat a potentially dangerous place for a child to ride . The front
seat is not the safest place for a child in a for
ward-facing child safety seat. It can be a very
dangerous place for an infant or a larger child
in a rearward-facing seat .
Advanced Airbags and the weight
sensing mat in the front seat
The Advanced Airbag System in your vehicle
detects the presence of an infant or child in a
child restraint on the front passenger seat us
ing the weight -sensing mat in the seat cush
ion and the sensor below the safety belt latch
on the front passenger seat that measures the
tension on the safety belt.
The weight -sensing mat measures total
weight of the child and the child safety seat
and a child blanket on the front passenger seat. The weight on the front passenger seat
is related to the design of the child restraint
and its "footprint", the size and shape of the
bottom of the child restraint as it sits on the ..,.
•
•
Page 178 of 312

176 Child Saf ety
seat. The weight of a child restraint and its
"footprint" vary for different kinds of chi ld re
straints and for the d ifferent models of the
same kind of child restraint offered by child
restra int manufacturers .
The weight ranges for the individual types, makes and mode ls of ch ild restra ints that the
NHTSA has specified in the Safety Standard
together with the we ight ranges of typical in
fants and typical 1 year-old child have been
stored in the control unit of the Advanced A ir
bag System. When a ch ild restrai nt is being
used on the front passenger seat with a typi
cal 1 yea r-old ch ild, the Advanced Airbag Sys
tem compares the we ight measured by the
weight sensing mat with the in formation stor
ed in the electronic contro l unit.
The ele ctron ic cont rol unit also registers the
tension on the front passenge r safety belt.
The tension on the safety be lt fo r the front
passenger seat will be different for an ad ult
who is properly using the safety belt as com
pared to the tension on the be lt when it is
used to attach a child restraint to the seat.
The sensor below the latch for the safety belt
for the front seat passenger measu res the
tension on the be lt . T he input from this sen
sor is then used with the we ight to "dec ide",
whe ther there is a ch ild restraint w ith a typ ica l
1 year-o ld child on the front passenger seat
and whether or not the airbag must be turned
off .
Child restraints and Advanced Airbags
Regardless of the child restraint that you use,
make sure that it has been certified to meet
United States Federal Motor Vehicle Safety
Standards a nd has been certified by its manu
facture r fo r u se w ith an airbag . Always be s ure
that t he ch ild res traint is p rope rly insta lled at
one o f th e rear seat ing pos itions . If in excep
tional c ircu mstances you must use it on the
front passenger seat, caref ully read all of the
info rmation on c hild safety and Advanced Air
bags and heed a ll of the applicable WARN
INGS. Make certain that the child restraint is
correctly recognized by the weig ht-sensing mat
inside the front passenger seat, that the
front passenger airbag is turned off and that
the a irbag stat us is a lways cor rect ly signa led
by the
PASSENGER AIR BAG OFF light.
Many types and models of child res traints
have been available over the years, new mod
els are introduced regu larly incorporating new
and improved des igns and o lder models are
taken out of product ion. Ch ild restraints are
not standard ized . Child restraints of the same
type typically have d ifferent weights and sizes
and diff erent 'footpr ints,' the s ize and shape
of the bo ttom of the ch ild restra int that sits
o n t he seat, when they a re inst alled on a vehi
cle sea t. Th ese d ifferences make i t vir tually
impossible to certify compliance with the re
quirements for advanced airbags with eac h
and every ch ild restra int that has ever been
sold in the past or will be sold over the course of the useful life of your veh icle.
For t his reason, the United States National
Highway Traffic Safety Adm inistrat ion has
published a list of spec ific type, makes and
models of child restraints that mus t be used
to certify comp liance of the Advanced Airbag
System i n your veh icle w ith the suppression
requirements of Federal Motor Vehicle Safety
Standa rd 208. These chi ld restraints are :
Subpart A - Car bed child restraints
Model Manufactured on or
after
A ngel Guard A ngel September 25, 200 7
R ide AA 2403FOF
Subpart B - Rear-facing child restraints
Model Manufactured on or
after
Ce ntury Smart Fit Decembe r 1, 1999
4543
Cosco Arriva September 25, 2007
22-013PAW and base 22-999WHO
E venflo Discovery Ad -December 1, 1999
just Right 212
Page 196 of 312

194 Audi pre sense
Audi pre sense
Preventative passenger
protection
A pp lies to veh icles: with Audi pre se nse
Audi pre sense can initiate steps to help pro
tect vehicle occupants in certain situations.
The functions described depend on equ ipment
installed in your vehicle:
Audi pre sense basic
The following functions can be triggered in
certain driving situations:
- Tightening of the safety belts (for example,
during heavy braking) : the front safety belts
have reversible belt pretensioners. If a colli
sion does not occur, the safety belts loosen
slightly and are ready to be tightened again.
- Closing the windows and the sunroof*: the
windows and the sunroof* close leaving a
small open gap.
Audi pre sense basic functions can be trig
gered at speeds above 20 mph (30 km/h). The
deployment time is adapted in the drive select
mode dynamic.
Audi pre sense front (vehicles with
adaptive cruise control*)
Audi pre sense front includes the functions in
Audi pre sense basic. In addition, within the
limits of the system, the likelihood of a colli
sion with the vehicle immediately ahead is al
so calculated .
If the system senses an immi
nent collis io n the following functions can be
triggered:
- Braking guard
~page 98
-Tightening the safety belts
- Closing the windows and the sunroof* (leav-
ing a small open gap)
Audi pre sense rear (vehicles with Audi
side assist*)
Audi pre sense rear includes the functions in
Audi pre sense basic. In addition, the likeli
hood of a rear-end coll ision with the veh icle
coming from behind is also calculated. If the risk
of a co llision is detected, the following
functions can be triggered:
- Tig htening the safety belts
- Closing the windows and the sunroof* (leav-
ing a small open gap)
- Adjusting the seats: the settings for the
power head restrains, the upper sections of
the backrests and the pneumatic side bol
sters* are optimized for the front seats and
the outboa rd rear seats*. If a collision does
not occur, the previous seat settings are re
stored.
Audi pre sense plus
Audi pre sense plus includes the funct ions in
Audi pre sense front and Audi pre sense rea r.
Error message
Audi pre sense: not available
Preventative passenger protection is not avail
able. See your authorized Audi dealer immedi
ately to have the malfunction corrected .
A WARNING
-Audi pre sense cannot overcome the laws
of physics.
It cannot prevent a collision. Do
not let the increased safety provided
tempt you to take risks. This will increase
the risk of a collision and serious personal
injuries.
- The sensors cannot always detect all ob
jects . This increases the risk of a colli
sion.
- Audi pre sense does not detect people or
animals or objects that are crossing the
vehicle's path~
page 92.
-The radar sensor's vision can be reduced
by heavy rain, ice, snow, heavy road spray
and reflections from guard rails, tunnel
entrances, etc. These and similar condi
tions can prevent vehicles from being ac
curately detected and in some cases they
may not be detected at all.
Ill>
Page 197 of 312

,....,
N ,....,
N
0 J:
'SI: ,...., \!) ..,.,
,...., ..,., ,....,
(D Note
The sensors can be displaced by impacts or damage to the bumper , whee l housing and
underbody. This can affect the function of
the Audi pre sense system. Have your au
thor ized Audi dealer check to make sure
that the system is working properly .
(D Tips
-Certain Audi pre sense functions are not
available when ASR is sw itched off (sport
mode) or when driving in reverse .
- The Audi pre sense functions may not be
ava ilable if there is a malfunction in the
ESC system or the airbag control mod
u le.
- The Audi pre sense front/plus functions
are not available if there is a ma lfunction
i n the adapt ive cru ise control* system
¢ page 99.
- The Audi pre sense rear/plus functions
are not available if there is a ma lfunction
i n the Audi side assist* system
¢ page 99 .
Audi pr e sense 195
•
•
Page 204 of 312

202 Intelligent technology
Driving with your
quattro
With All Wheel Drive, all four wheels are driv
en .
General inform ation
With All Wheel Drive, power is distributed to
all four wheels . This happens automatically
depending on your driving style and the road
conditions at the time . See also
c:;; page 197.
With the sport differential*, power d istribu
tion to the rear wheels is variable and can be
adjusted with Audi d rive select*
c:;; page 108.
Always read and follow safety precautions
¢ .&,.
Winter tires
When driving in the winter , your vehicle with
A ll Wheel Drive has an advantage, even with
regular tir es. In winter road conditions it may
be advisable to mount winter tires (or all-sea
son tires) for improved driveability and brak ing: these tires must be mounted on
all four
wheels.
See also ¢ page 260, Winter tires.
Snow chains
Where snow chains are mandatory on certa in
roads, this normally a lso applies to vehicles
with A ll Wheel Drive
c:;, page 261, Snow
chains .
Replacing wheels/tires
Vehicles with All Wheel Dr ive must always
have tires of the same size. Also avoid ti res
with different tread depths. For details see
page
c:;, page 256, New tires and replacing
tires and wheels .
Off-Road driving?
Your Audi does not have enough ground clear
ance to be used as an off-road vehicle. It is
therefore best to avoid rough tracks and un
even terrain as much as possible. Also refer to
c:;; page207.
A WARNING
Always adjust your driving to road and traf
f ic conditions. Do not let the extra safety
afforded by All Wheel Drive tempt you into
taking extra risks.
- Although the All Wheel Drive is very ef
fective, always remember that braking
capacity is lim ited by tire traction. You
should therefore not drive at excessive
speeds on icy or slippery road surfaces.
- On wet road surfaces, be careful not to
drive too fast because the front wheels
could begin to slide on top of the water
(aquaplaning) . If this should occur, you
will have no warning from a sudden in
crease in eng ine speed as with a front
wheel drive vehicle. Always drive at speeds which are suited to the road con
ditions - risk of crash .
Energy management
Starting ability is optimized
Energy management controls the distribution
of electrical energy and thus optimizes the
availability of electrical energy for starting
the engine .
If a vehicle with a conventiona l ene rgy system
is not driven for a long period of time, the bat
tery is discharged by idling current consumers
(e .g. immobilizer). In certain circumstances it
can resu lt in there being insufficient energy
available to start the engine .
Intelligent energy management in your vehi
cle handles the distribution of e lectrica l ener
gy. Starting ability is markedly improved and
the life of the battery is extended.
Basically, energy management consists of
battery diagnosis , idling current manage
ment
and dynamic energy management.
Battery diagnosis
Battery diagnosis continuously determines
the state of the battery. Sensors determine
battery voltage, battery current and battery ..,.
Page 217 of 312

,....,
N ,....,
N
0 J:
'SI: ,...., \!) ..,.,
,...., ..,., ,....,
Vehicl e ca re a nd cl eanin g 215
Rinse the vehicle thoroughly with water. Then
clean using a neutral shampoo and a soft mi
crofiber cloth.
Rinse the vehicle tho roughly again and let it
air dry. Remove any water residue using a
shammy .
A WARNING
-Only wash the vehicle when the ignition
is off and follow the instructions from
the car wash operator to reduce the risk
of accidents .
- To reduce the risk of cuts, protect your
self from sharp metal components when
wash ing the underbody or the inside of
the wheel housings .
- After washing the vehicle, the braking ef
fect may be delayed due to mo isture on
the brake rotors or ice in the winter. The
brakes must be dried first with a few
careful brake applicat ions.
- If you wash the vehicle in an automatic car wash, you must fold the exterior m ir
rors in to reduce the r is k of damage to
the mirrors. Power folding exterior m ir- rors* must only be fo
lded in and out us
ing the power folding fu nction .
- T o prevent paint damage, do not wash
the vehicle in direct sunlight.
- T o reduce the r is k of damage to the sur
face, do not use insect removing spong
es, kitchen sponges or similar items.
- Matte finish painted vehicle compo
nents:
- To reduce the risk of damage to the
surface, do not use polishing agents or hard wax.
- Never use car wash cycles that apply
protective wax. It can destroy the
matte fin ish effect .
- Do not place any stickers or magnet ic
signs on vehicle parts painted w ith
matte fin ish paint. The paint cou ld be
damaged when the stickers o r magnets
a re removed.
@ For the sake of the environment
Only wash the vehicle in facilities spec ially
designed for that p urpose . This will red uce
the r is k of dirty wate r contam inated with
oil from entering the sewer system.
Cleaning and care information
When clea ning and caring for individual vehi
cle components, refer to the fo llow ing tab le.
The information contained there is simp ly rec
ommendations. For questions or for compo -nents that are not listed
, refer to a n author
ized Audi dea ler or a qualified workshop. Also
follow the information found in ¢ .&. .
Cle an ing exte rior
Component Situation Solution
Wipe r blades
Dirty ~ page 54, Cleaning windshield wiper blades
Headlight s/ Dirty Soft sponge with a mild soap solutiona>
tail ligh ts
S en sor s/
Dirty Sensors: soft cloth with a so lvent-free cleaning product
camera le nse s Camera lenses: soft cloth with an alcohol-free cleaning
so lution
Snow/ice Hand brush/so
lvent-free de-icing spray
Wheel s Road salt Water
Brake dust Acid-free special cleaning
solution
•
•
Page 220 of 312

218 Vehicle care and cleaning
- Never clean headlights or tail lights
with a dry cloth or sponge.
- Do not use any cleaning product that
contains alcohol, because they could
cause cracks to form.
-Wheels
- Never use any paint polish or other
abrasive materials.
- Damage to the protective layer on the
rims such as stone chips or scratches
must be repaired immediately.
- Sensors/camera lenses
- Never use warm or hot water to re-
move snow or ice from the camera
lens. This could cause the lens to crack.
- Never use abrasive cleaning materials
or alcohol to clean the camera lens.
This could cause scratches and cracks.
-Windows
- Remove snow and ice on windows and
exterior mirrors with a plastic scraper.
To avoid scratches, move the scraper
only in one direction and not back and
forth.
- Never remove snow or ice from win
dows and mirrors using warm or hot
water because this could cause cracks
to form.
- To avoid damage to the rear window
defogger, do not apply any stickers on
the heating wires on the inside of the
window.
- Decorative parts/trim
- Never use chrome care or cleaning
products.
- Paint
-To reduce the risk of scratches, the ve-
hicle must be free of dirt and dust be
fore polishing or waxing.
- To prevent paint damage, do not polish
or wax the vehicle in direct sunlight.
- To reduce the risk of paint damage, do
not polish away rust film .
- Remove cosmetics and sunblock imme
diately. Otherwise, the paint could be
damaged .
-Trim
- To reduce the risk of damage, do not
treat the trim around the panorama
sunroof with paint polish.
- Decorative decals
-To reduce the risk of damage, do not
use any rough powder or abrasive
cleaning products .
- To reduce the risk of damage, do not
polish decorative parts that have a
matte finish .
-Displays
-To avoid scratches, do not use dry
cleaning methods on displays.
- Controls
- Make sure that no fluids enter the con-
trols, because this could cause dam
age.
- Safety belts
- Do not remove the safety belts to clean
them.
- Never clean safety belts or their com
ponents chemically or with corrosive
fluids or solvents and never allow
sharp objects to come into contact
with the safety belts. This could cause
damage to the belt webbing.
- If there is damage to the webbing, the
connections, the retractors or the buck les, have them replaced by an author
ized Audi dealer or a qualified work
shop.
- Textiles/Vinyl/Alcantara
- Never treat Vinyl/Alcantara with leath-
er care products, solvents, floor polish,
shoe polish, stain remover or similar
products.
- To avoid damage, have stubborn stains
removed by an authorized Audi dealer
or a qualified workshop.
- Never use steam cleaners, brushes,
hard sponges, etc. when cleaning.
- Do not turn on the seat heating* to dry
the seat.
- Objects with sharp edges such as zip
pers, rivets on clothing or belts can
cause damage to the surface.
Page 239 of 312

,....,
N ,....,
N
0 J:
'SI: ,...., \!) ..,.,
,...., ..,., ,....,
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance .
Fig. 204 Eng ine compartme nt: cover o n the coolant
expansion tank
Before you check anything in the engine com
partment,
a lway s read and he ed all WARN
INGS ¢ & in Working in the engine compart
ment on page 228.
Park your vehicle on a level surface.
~ Switch off the ignition.
~ Read the engine coolant leve l from the cool
ant expansion tank¢
fig. 204, ¢ page 230.
With a cold engine, the coolant level should
be between the "min" and "max" markings.
When the engine is warm, the level may be sl ightly above the ''max" marking.
The location of the coolant expansion tank
can be seen in the engine compartment illus
tration ¢
page 230 .
To obtain an accurate reading, the engine
must be switched off.
The expansio n tank in your vehicle is equipped
with an electric coolant level sensor.
When t he coo lant level is too low, the warning
light in the Auto-Check System¢
page 15 will
illuminate unti l yo u add coolant and the level
has been restored to normal. Even thoug h
there is an electric coolant level sensor, we
still recommend you check the coolant level
from time to time.
Coolant loss
Coolant loss may indicate a leak in the cooling
system. In the event of coolant loss, the cool-
Checkin g and fillin g 237
ing system shou ld be inspected immediately
by your authorized Audi dealer . It is not
eno ugh merely to add coo lant .
In a
s ealed system, losses can occu r on ly if
the boiling point of the coo lant is exceeded as
a resu lt of overheating.
A WARNING
The cooling system is under pressure and
can get very hot. Red uce the risk of scald
ing from hot coolant by follow ing these
steps.
- Turn off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escaping flu id a nd steam by cover ing the
cap with a la rge, th ick rag.
- Turn the cap slowly and very carefully in
a counter-clockwise d irect ion while ap
p lyi ng lig ht, dow nward pressure on the
top of the cap.
- To avo id being burned, do not sp ill anti
freeze o r coolan t on the exhaust system
or ho t engine parts. Und er certa in cond i
tions, the ethylene gly co l in engine coo l
an t can catch fire.
(D Note
Do not add any type of radiator leak sea l
ant to your veh icle's engine coo lant. Add
i ng radia to r repa ir flui d may adverse ly af
fe ct the fun ct io n and perfor man ce o f you r
coo ling system and could result in damage
not cove red by your New Vehicle Limi ted
War ranty.
Adding coolant
Be very careful when adding engine coolant .
Before you che ck a nyt hing in the eng ine com
partmen t,
alway s re ad and he ed alt WARN
INGS ¢ & in Working in the engine compart
ment on page 228.
~ Requirement: There must be a residua l
a mo unt of coolan t in the expansion ta nk
¢(D.
~Tu rnoff the engine . •
•