2015 AUDI A5 COUPE sensor

Airb ag syst em
by being pushed into you as t he airbag in­
flates.
- Never p lace or attach accessories or other
objects (such as cupholders, telephone brackets, or even large, bulky objects) on
the doors, over or near the area marked "AIRBAG" on the seat backrests.
- Su ch ob jects and ac cessories can become
dangerous projecti les and cause injury
when the supplemental side airbag de ­
p loys .
- Never carry any objects or pets in the de ­
p loyment space between them and the
airbags or allow chi ldren or other passen­
gers to trave l 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 airbag deployment
and can cause personal injury in an accident .
- Always prevent the side a irbags from be ing
damaged by heavy objects knocking against
o r hitting the sides of the seatbacks .
- The airbag system can only be triggered
once . If the airbag has been triggered, the
system must be rep laced by an authorized
Audi dealership.
- Damage (c racks, deep scratches etc.) to the
o riginal seat covers or to the seam in the
area of the side airbag module must a lways
be repaired immedia tely by an authori zed
Audi dealer .
-If children a re seated improperly, their risk
of injury i ncreases in the case of an a ccident
~ page 151, Child safety .
-Never a ttempt to modify any com po nents of
the a irbag sys tem in any way .
- In a side collision, s ide a irbags w il l not fu nc­
t ion prope rly if sensors canno t correc tly
measure increas ing air pressure inside the
doors when air escapes through larger, un­
closed openings in the door panel.
- Never drive w ith inter io r doo r tr im panels
removed .
- Never drive when parts have been re ­
moved from the ins ide door panel and the
open ings they leave hav e not bee n prope r­
ly closed.
148
- Never drive when loudspeakers in the
doors have been removed unless the
speaker ho les have bee n properly closed.
- Always make certain that openings are
covered or f illed if add itiona l speakers or
other equipment is installed i n the inside
door panels.
- Always have work on the doors done by an
autho rized Aud i dea le r or q ualified work­
shop .
Side curtain airbags
Description of side curtain airbags
The side curtain airbag system can provide sup­
plemental protection to properly restrained oc­
cupants .
Fig. 1 40 Sid e curt ain system , driver's s ide : side c urtain ai r­
bag loca tion
The side curtai n airbags are located on both sides
of the inter ior above the front and rear side win­
dows
~ fig. 140 . They are identif ied by the word
"AIRBAG" on the windsh ield frame and the cen ­
ter roof pi llar.
The side curtai n airbag system supplements the
safety belts and can help to reduce the risk o f in­
jury for occupants' heads and upper torso on the s ide of the vehicle that is struck in a side coll i­
s io n. The side curtain ai rbag inflates in side im­
pacts and only when the veh icle acceler ation reg­
istered by the cont ro l unit is high enough . If t his
rate is below the reference value prog ram med in­
to the control un it, the side a irbags w ill not be
trigge red, even thoug h the ca r may be bad ly
damaged as a resul t of t he coll is ion. It is no t po s­
s ible to define an airbag triggering range that
will cover every possible angle of impact, since .,._

M N
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the circumst ances wi ll vary considerably between
one co llision and another . Important facto rs in­
clude, for example, t he nature (hard or soft) of
the impacting object, the angle of impact, vehicle
speed, etc .
¢ page 149, How side curtain air­
bags work .
Aside from the ir norma l safety func tion, safety
be lts work to help keep the dr iver or front pas­
senger in posit ion in the event of a collision so
that the side curta in a irbags can provide protec ­
tion .
The airbag system is not a subst itute for your
safety belt. Rather, it is part of the overall occu­
pant restraint system in your vehicle . Always re­
member that the airbag system can only help to
p rotect you if you are wear ing your safety be lt
and wear ing it prope rly. This is another reason
why you should a lways we ar your safety belts,
not just because the law req uires you to do so
¢ page 121, General information.
It is impor tant to remember that whi le the side
cur tain a irbag sys tem is designed to he lp redu ce
the like lihood o f serious injuries, other injur ies,
for example, swe lling, bruising, and minor abra ­
sions can a lso be associated with these airbags .
Remember too, these airbags wi ll dep loy only
once and only in certain k inds of accidents -yo ur
safety belts are always there to offer protect ion.
The side curt ain airbag sy stem basically
con sists of :
-The electronic control mod ule and externa l side
impact sensors
- The side curtain airbags above the front and
rear side w indows
- The airbag indicator light in the instrument
panel
The airbag system is monitored elect ronica lly to
make certain it is f unctioning proper ly at a ll
times. Eac h time you turn on the ign ition, the a ir­
bag system ind icator light will come on for a few
seconds (self diagnostics).
The side curt ain airbag is not activated:
- if the ignitio n is turned off,
~ - in s ide coll isions when the acce leration meas-.,.,
~ u red by the sensor is too low, ,....,
Airbag syste m
- in rear -end co llisions,
- in rollove rs.
A WARNING
-
- Safety belts and the airbag system will only
p rovi de p rotection when occ upants are in
the proper seating position
¢ page 54,
Seats and storage.
- If the ai rbag indicator light ¢ page 19
comes when the veh icle is being used, have
the system inspected immediately by your
author ized Audi dealer. It is possib le that
the airbag will inflate when it is not sup ­
posed to, or will not infla te when it s hould.
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 re ­
strained .
E
Fig. 14 1 Illus trati on of pr inc ip le : Inf lat ed s ide curtain a ir­
bags o n the left s ide
The side curtai n airbags inflate betwee n the oc­
cupant a nd the w indows on the side of the ve hi­
cl e that is st ruck in a side collision
¢ fig. 141.
When the system is triggered, the side curta in
airbag is filled with prope llant gas and breaks
t hr ough a seam above the front and rear side
windows ident ified by the AIR BAG label. In o rder
to help provide this addi tional p rotec tion , the
s ide cu rtain airbag mus t in flate w it hi n the blin k
of an eye at very high speed and wi th great force.
The side c urtain airbag co uld inj ure you if yo ur
seating position is not proper or upright or if
items are located in the area where the s upple­
mental s ide curtain airbag inflates. This applies
especially to ch ildren
¢ page lSl. .,..
149

Child safety
exceptional circumstances and the PASSEN­
GER AIR BAG OFF
light does not come on
and stay on, immediately install the rear­
ward-facing child safety seat in a rear seat­
ing position and have the airbag system in­
spected immediately by your authorized
Audi dealer.
_& WARNING
If, in exceptional circumstances, you must in­
stall 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 man­
ufacturer for use on a front seat with a pas­
senger front and side airbag.
- Always follow the manufacturer's instruc­
tions 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 air­
bag 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 in­
stalled in a vehicle during a crash. Damage 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 "Advanced
Airbag System" in compliance with United States
Federal Motor Vehicle Safety 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" require­
ments for 3- and 6-year old children on the pas­
senger side and small adults on the driver side.
The low risk deployment criteria are intended to
152
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
"suppression" requirements of the Safety Stand ­
ard, to turn off the front airbag for infants up to
12 months who are restrained on the front pas­
senger seat in child restraints that are listed in
the Standard.
Even though your vehicle is equipped with an Ad­
vanced Airbag system, all children, especially
those 12 years and younger, should always ride in
the back seat properly restrained for their age
and size. The airbag on the passenger 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 forward-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 de­
tects the presence of an infant or child in a child
restraint on the front passenger seat using the
weight-sensing mat in the seat cushion 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 de­
sign of the child restraint and its "footprint", the
size and shape of the bottom of the child re ­
straint as it sits on the seat . The weight of a child
restraint and its "footprint" vary for different
kinds of child restraints and for the different
models of the same kind of child restraint offered
by child restraint manufacturers.
The weight ranges for the individual types, makes
and models of child restraints that the NHTSA
has specified in the Safety Standard together
with the weight ranges of typical infants and typ-
ical 1 year-old child have been stored in the .,..

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control unit of the Advanced Airbag System .
When a child restraint is being used on the front passenger seat with a typical 1 year -o ld chi ld, the
Advanced Airbag System compares the weight measured by the weight sensing mat with the in­
formation stored in the electron ic contro l unit .
T he electronic control unit a lso registers the ten­
sion on the front passenger safety belt. The ten­
sion on the safety belt for the front passenger
seat will be different for an adult who is properly
usi ng the safety belt as compared to the tens ion
on the belt w hen it is used to attach a chi ld re­
straint to the sea t. The senso r below the latch fo r
the safe ty belt for the fron t seat passenger
measures the tension on the be lt. The inp ut from
this sensor is then used with the weight to "de ­
cide", whether the re is a child restraint wit h a
typical 1 year-old chi ld on the front passenger
seat and whether or not the airbag must be
turned
off .
Child restraints and Advanced Airbags
Regardless of the chi ld restraint that you use,
make sure that it has been ce rtified to meet Un it­
ed States Fede ral Motor Vehicle Safety Standards
and has been certified by i ts manufac turer for
use w ith an airbag . A lways be sure tha t the child
restra int is properly installed at one o f the rear
seating positions . If in exceptiona l circumstances
you must use it on the front passenger seat, care­ fu lly read all of the information on child safety
and Advanced Airbags and heed all of the appli­
cable WARNINGS . Make certain that the ch ild re ­
straint is correctly recognized by the weight-sens­
i ng mat i nside the front passenge r seat, that the
fr ont passenger airbag is tu rned
off and that the
air bag status is always corre ct ly signaled by the
PASSENGER AIR BAG OFF li ght .
Many types and models of ch ild rest ra ints have
b een ava ilable over the yea rs, new models are i n­
t roduced regul arly incorpo rat ing new and im­
p roved des igns and o lder models a re taken o ut o f
p ro du ction. Child rest raints a re not standardized.
Child restra ints of the same type typically have
d ifferent weights and s iz es and different 'foot­
prin ts,' the si ze and shape of the bottom of the
child restraint that sits on the seat , when they
Child sa fety
are insta lled on a vehicle seat. These differences
make it virtua lly impossib le to certify compliance
with t he requirements for advanced airbags with
each and every chi ld restraint that has ever been
sold in the past or will be sold over the course of
the usefu l life of your vehicle.
For t his reason, the United States National High ­
way Traffic Safety Adm inistrat ion has published a
li st of spec ific type, makes and models of child
restraints that must be used to cert ify compli­
ance of the Advanced Airbag System in your ve hi­
cle w ith the s uppression r equirements of Federal
Motor Veh icle Safety S tanda rd 208. These child
rest rain ts a re:
Subpart A -Car bed child restraints
Model Manufactured on or
after
A ngel Gua rd A ngel September 2S , 200 7
R ide AA2403FOF
Subpart B -Rear-facing child restraints
Model Manufactured on or
after
Century Smart Fit 4543 Decembe r 1, 1999
Cosco Ar riva September 25, 2007
22-013PAW and base
22-999WHO
E venflo Discovery Ad -December 1, 1999
just Right 212
E venflo First Choi ce De cembe r 1, 1999
204
Graco Infant 8457 Decembe r 1, 1999
Graco Sn ug ride September 25, 200
7
Peg Perego Pr imo Viag- September 2S, 2007
g io SIP IMUNOOUS
Subpart C -Forward-facing and convertible
child restraints
Model Manufactured on or
after
B rit a x Roundabout September 2S, 200 7
E 9L02xx
Cosco To uriva 02519 December 1, 1999
153

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The all-wheel drive concept is designed for high
engine power . Your vehicle is exceptionally pow­
erful and has excellent driving character istics
both under normal driving conditions and on
snow and ice. Always read and follow safety pre­
cautions <=>
,&.
Winter tire s
When driving in the winter, your vehicle with all­
wheel drive has an advantage, even with regular
tires. In winter road conditions it may be advisa­
ble to mount w inter tires (or all-season tires) for
improved driveability and braking: these tires
must be mounted on
all four wheels. See also
<=> page 220, Winter tires.
Tire chains
Where tire chains are mandatory on certain
roads, this normally also applies to vehicles with
all-wheel drive <=>
page 220, Snow chains.
Replacing wheels/tires
Vehicles with all-wheel drive must a lways have
tires of the same size. Also avoid tires with differ­
ent tread depths. For details see page
<=>
page 212, New tires or wheels.
Off-Road driving?
Your Audi does not have enough ground clear­
ance to be used as an off-road vehicle. It is there­
fore best to avoid rough tracks and uneven ter­
rain as much as possible. Also refer to
<=>page 177.
A WARNING
Always adjust your driving to road and traffic
conditions. Do not let the extra safety afford­
ed by all-wheel drive tempt you into taking
extra risks.
- Although the all-wheel dr ive is very effec­
t ive, always remember that braking capacity
is limited by tire traction. You should there­
fore not drive at excessive speeds on icy or
slippery road surfaces.
- On wet road surfaces, be careful not to dr ive
too fast because the front wheels could be ­
gin to slide on top of the water (aquap lan­
ing). If this shou ld occur, you will have no
Smart Technology
warning from a sudden increase in engine
speed as with a front-wheel drive vehicle.
Always drive at speeds which are suited to the road conditions -risk of crash.
Energy management
Starting ability is optimized
Energy management controls the distribution of
electrical energy and thus optimizes the availa­
bility of electrical energy for starting the engine.
If a vehicle with a conventional energy system is
not driven for a long pe riod of time, the battery
is discharged by idling current consumers (e.g.
i mmobil izer). In certain circumstances it can re­
su lt in there being insufficient energy available to
start the engine.
Intelligent energy management in your vehicle
hand les the distribution of electrical energy.
Starting ability is markedly improved and the life
of the battery is extended.
Basically, energy management consists of
bat­
tery diagnosis , idling current management
and
dynamic energy management.
Battery diagnosis
Battery diagnosis continuously determines the
state of the battery . Sensors determine battery
vo lta ge, battery current and battery tempera­
tu re. This determines the current state of charge
and the power of the battery.
Idling current management
Idling current management reduces energy con­
sumption whi le the vehicle is standing. With the
ignition switched off, it contro ls the energy sup­
ply to the various electrical components. Data
from battery diagnosis is considered.
Depending on the battery's state of charge, indi­
vidual consumers are gradually turned off to pre­
vent excessive discharge of the battery and thus
maintain starting capability .
Dynamic energy management
While the vehicle is being driven, dynamic energy
management distr ibutes the energy generated ..,.
175

Care and cleaning
Care and cleaning
General information
Regular, proper care he lps to maintain your vehi ­
cle's value.
It can also be a requirement when
submitting warranty claims for corrosion damage
and paint defects on the body.
The necessary care products can be obtained
from your authorized Audi dealer . Read and fol­
low the instructions for use on the packaging.
A WARNING
-Using cleaning and care products incorrectly
can be dangerous to your health.
- Always store cleaning and care products out of reach of children to reduce the risk of poi­
soning .
@ For the sake of the environment
-Preferably use environmentally-friendly
products when buying cleaning agents.
- Do not dispose of leftover cleaning and care
products with household trash .
Car washes
The longer that deposits remain on the vehicle,
the more the surface may be damaged. High
temperatures such as those caused by sunlight
increase the damaging effect.
Before washing, rinse
off heavy deposits with
p lenty of water.
Stubborn deposits such as bird dropp ings or tree
sap are best removed with plenty of water and a
microfiber cloth .
A ls o, wash the underside of your veh icle once
road salt stops be ing used for the season .
Pressure washers
When washing your veh icles with a pressure
washer, always follow the operating instructions
provided with the pressure washer. This is espe­
cially important in regard to the p ressure and
spray ing distance. Do not aim the spray directly
at seals on side windows, doors, the hood, the
rear lid or the sunroof* or at tires, rubber hoses,
184 insulating
material, sensors* or camera lenses*.
Keep a distance of at least 16 inches (40 cm).
Do not remove snow and ice with a pressure
washe r.
Never use rotary nozzles or high pressure noz­
zles.
The water temperature must not be above 140 °F
(60 °() .
Automatic car washes
Spray off the vehicle before washing.
Make sure that the w indows and roof* are closed
and the windshie ld wipers are off. Follow instruc­
tions from the car wash operator, especially if
there are accessories attached to your vehicle.
If possible, use car washes that do not have
brushes.
Washing by hand
Clean the veh icle starting from the top and work­
i ng down using a soft sponge or cleaning b rush .
Use solvent-free cleaning p roducts.
Washing vehicles with matte finish paint by
hand
To avoid damaging the paint when washing, first
remove dust and large particles from your vehi­
cle. Insects, grease spots and fingerprints are
best removed with a special cleaner for matte
finish paint.
Apply the p roduct using a microfiber cloth. To
avoid damaging the paint surface, do not use too
much pressure.
Rinse the ve hicle thoroughly with water. Then
clean using a neutra l shampoo and a soft micro­
fiber cloth .
Rinse the veh icle thoroughly again and let it air
dry. Remove any water residue using a shammy.
A WARNING
-On ly wash the vehicle when the ignition is
off and follow the instructions from the car
wash operator to reduce the risk of acc i­
dents.
-

Checking and F ill in g
blink until you add coo lant and the level has been
restored to normal. Even though there is an e lec­
tr ic coo lant level sensor, we still recommend you
check the coo lant level from t ime to time.
Coolant los s
Coolant loss may indicate a leak in t he cooling
system. In the event of coolant loss, the cooling
system should be inspected immediately by your
authorized Audi dealer. It is not enough merely
to add coolant.
I n a
s e a led system, losses can occur only if the
boiling point of the coo lant is exceeded as a re­
sult of overheating.
A WARNING
The cooling system is under pressure and can
get very hot. Reduce the risk of scalding from
hot coolant by following these steps .
- Turn off the engine and allow it to coo l
down .
- Protect your face, hands and arms from es­
caping fluid and steam by covering the cap
with a large, thick rag .
-Turn the cap slowly and very carefully in a
counter-clockw ise d irection while applying
light, downward pressure on the top of the
cap.
- To avoid being burned, do not spill ant i­
freeze or coolant on the exhaust system or hot eng ine parts . Under ce rtain conditions,
the ethy lene g lycol in engine coolant can
catch fire.
{il) Note
Do not add any type of rad iator leak sealant
to your veh icle's engine coolant . Adding radia­
to r repair f lu id may adverse ly affect the func­
tion and performance of your cooling system
and could resu lt in damage not covered by
your New Vehicle Limited Warranty.
Adding coolant
Be very careful when adding engine coolant .
Before you check anything in the engine compart­
ment,
alway s re ad an d heed all WARN ING S
198
¢ A in Working in the engine compartment on
page 191.
Req uirement: There must be a res idual amo unt
of coo lant in the expans ion tank
~CD-
.,,. Turn off the engine .
.,,. Let the engine cool down.
.,,. Place a thick rag ove r the coolant expansion
tank
¢ page 197, fig. 164 and car efull y turn
the cap counter-clockwise
~ .&_ .
.,,. Add coo lant mixed in the correct ratio
~ page 196, Coolant up to the MAX marking .
.,,. Make sure that the flu id level remains stab le.
Add more coolant if necessa ry .
.,,. Twist the cap on aga in
tightly .
Replacement engine coo lant must conform to ex­
act specifications ¢
page 196, Coolan t.
We recommend using only coo lant additive Gl2 +
+ , Gl3
or in an emergency Gl2+. Do not use a
different additive. In an emergency use plain wa­
ter unt il you can get the correct additive and can
restore the correct ratio. This should be done as
soon as possible .
If you have lost a considerab le amount of cool­
ant, then you should add cold antifree ze and cold
water only when the engine is cold.
Always use
new engine coo lant when refilling.
Do not fil l coolant above the "MAX " mark. Excess
coolant will be forced out through the pressure
relief valve in the cap when the engine becomes
hot.
A WARNING
- The cooling system is under pressure and
can get very hot. Reduce the risk of scalding
from hot coolant by following these steps.
- Turn off the eng ine and allow it to coo l
down.
- Protect you r face, hands and arms from
escaping fluid and steam by covering the
cap with a large, thick rag .
- Turn the cap s low ly and ve ry carefully in a
counter-clockw ise direction wh ile app ly ing
li ght, downward p ressu re on the top o f
the cap. ..,,.

also reduces fuel efficiency and tire tread life,
and may affect the vehicle's handling and stop­
ping ability .
Please note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver's re­
sponsibility to maintain correct tire pressure,
even if under-inflation has not reached the level
to trigger illumination of the TPMS low tire pres­
sure telltale.
Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the sys­
tem is not operating properly. The TPMS mal­
function indicator is combined with the low tire pressure telltale . When the system detects a
malfunct ion, the telltale will flash for approxi­
mately one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent veh icle start-ups as long as the mal­
function exists.
When the malfunction indicator is illuminated,
the system may not be able to detect or signal
low tire pressure as intended. TPMS malfunctions
may occur for a variety of reasons, including the
installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly. Always check the
TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure
that the replacement or alternate tires and
wheels allow the TPMS to continue to function properly.
Wheels
If the Tire Pressure Monitoring System
indicator appears
Appl ies to vehicles : wi th t ir e p ress ure mo nito rin g 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. 172 Instrument cluster: i ndicator light with message
Using the ABS sensors, the tire pressure monitor­
ing system compares the tire tread circumference
and vibration characteristics of the individual
tires .
If the pressure changes in one or more
tires, this is indicated in the instrument cluster
display with an indicator light
[I] and a message .
If only one tire is affected, the location of that
tire will be indicated .
The tire pressures must be stored in the Infotain­
ment system again each time the pressures
change (switching between partial and full load
pressure) or after changing or replacing a tire on
your vehicle ¢
page 224. The tire pressure moni­
toring system only monitors the tire pressure you have stored. Refer to the tire pressure label for
the recommended tire pressure for your vehicle
r=> page215, fig.171.
Tire tread circumference and vibration character­
istics can change and cause a tire pressure warn­
ing if:
- the tire pressure in one or more tires is too low .
- the tire has structural damage.
- the tir e was replaced or the tire pressure was
changed and it was not stored ¢
page 224.
-the spare t ire* is installed.
Indicator lights
[I] Loss of pressure in at least one tire¢.& .
Check the tires and replace or repair if necessary .
liJJ,-
223