2017 AUDI A4 sensor

Parking systems
Parking systems
General information
A ppl ies to: ve hicles w ith a rea r parking sys te m /pa rking sys ­
tem p lus/rearv iew camera/peripheral ca meras
Depending on your vehicle's equipment , various
parking aids will help you when parking and ma­
neuvering.
The
rear parking system is an audible parking aid
that warns you of obstacles
behind the vehicle
¢ page 125.
Parking system plus assists you when parking by
using audio and visual signals to indicate objects
detected in
front of and behind the vehicle
¢ page 125.
The rearview camera shows the area behind the
vehicle in the Infotainment display . The lines in
the rearview camera image help you to park or
maneuver ¢
page 126. The parking system plus
functions are also available
¢page 125.
The peripheral cameras give various views to
help you when parking or maneuvering
¢ page 128 . fhe parking system plus functions
are also available
¢ page 125.
A WARNING
- Always look for traffic and check the area
around your vehicle by looking at it directly
as well. The parking system cannot replace
the driver 's attention. The driver is always
responsible when entering or leaving a park­
ing space and during similar maneuvers.
- Please note that some surfaces, such as
clothing, are not detected by the system.
-
- Sensors and cameras have blind spots in
which people and objects cannot be detect­ ed . Be especially cautious of small children
and animals .
- Always keep your eyes on the vehicle's sur­
roundings, using the rearview mirror as
well .
- The sensors can be displaced by impacts or
damage to the radiator grille, bumper,
wheel housing and the underbody . The park­
ing system may be impaired as a result.
Have an authorized Audi dealer or author-
124
ized Audi Service Facility check their func­
tion .
(D Note
-Some objects are not detected or displayed
by the system under certain circumstances:
- Objects such as barrier chains, trailer draw
bars, vertical poles or fences
- Objects above the sensors such as wall ex­
tensions
- Objects with certain surfaces or structures
such as chain link fences or powder snow
- If you continue driving closer to a low ob­
ject, it may disappear from the sensor range. Note that you will no longer be
warned about th is obstacle .
- Keep enough distance from the curb to
avoid damage to the rims.
(D Tips
-The system may provide a warning even
though there are no obstacles in the cover­
age area in some situations, such as :
- certain road surfaces or when there is tall
grass.
- external ultrasonic sources such as from
cleaning vehicles .
- in heavy rain, snow, or thick vehicle ex­
haust.
- We recommend that you practice parking in
a traffic-free location or parking lot to be­
come familiar with the system . When doing
this, there should be good light and weath­
er conditions.
- You can change the volume of the signals
and the display ¢
page 131.
-Please refer to the instructions for trailer
towing in
¢page 132.
- What appears in the infotainment display is
somewhat time-delayed.
- Th e sensors must be kept clean and free of
snow and ice for park assist to operate.

Rear parking system
Description
Applies to: vehicles with rear parking system
The rear parking system is an audible parking
aid .
Descr iption
There is a sensor in the rear bumper cover. If
these detect an obstacle, audible signals warn
you .
Make sure the sensors are not covered by stick­
ers, deposits or any other obstructions as it may
impair the function of the system . For informa­
tion on cleaning, refer to
c:> page 337.
The range at which the sensors begin to measure
is approximately:
side 3 ft (0 .90 m)
rear
center 5.2
ft (1.60 m)
The closer you get to the obstacle, the shorter
the interval between the audible signals . A con­
tinuous tone sounds when the obstacle is less
than approximately 1 foot (0.30 meters) away.
Do not continue backing up
c:::> &. in General infor­
mation on page 124,
c:> Q) in General information
on page
124!
If the distance to an obstacle remains constant,
the volume of the distance warning lowers down
to mute after a few seconds (this does not apply
in the continuous tone range). If the obstacle
comes closer before the system mutes, the tone
sounds again. If the obstacle moves farther away
before the system mutes, a tone will not sound.
Pay attention to the vehicle's surround ings when
you start to drive.
Activating
The rear parking assist activates automatically
when the reverse gear is engaged. You will hear a
brief confirmation tone.
Parking systems
Parking system plus
Description
Applies to: veh icles w ith park ing system plus
Parking system plus provides audio and visual
signals when parking.
Fig. 119 Illustration:
Sensors are located in the front and rear bump­
ers. If these detect an obstacle, audib le and visu­
al signals warn you.
Make sure the sensors are not covered by stick­
ers, deposits or any other obstructions as it may
impair the function of the system. For informa ­
tion on cleaning, refer to
c:::>page 337.
The display field begins approximately at:
® 4 ft (1.20 m)
® 3 ft (0.90 m)
© 5.2 ft (1.60 m)
@ 3 ft (0.90 m)
T he close r you get to the obstacle, the shorter
the interval between the audible signals . A con­
tinuous tone sounds when the obstacle is less
than approximately 1 foot (0.30 meters) away.
Do not continue driving forward or in reverse
c:::> &. in General information on page 124, c:>(i) in
General information on page 124!
If the distance to an obstacle remains constant,
the volume of the distance warning lowers down
to mute after a few seconds (this does not apply
in the continuous tone range).
If the obstacle
comes closer before the system mutes, the tone
sounds again .
If the obstacle moves farther away
before the system mutes, a tone will not sound.
Pay attention to the vehicle's surroundings when
you start to drive.
125

Parking sy stem s
The new ly selected level is demonstrated briefly
by the sound generator .
View * -switch betwee n an optical d isp lay
(Graphi c) and camera image (Camera ) in the
right area o f the disp lay .
Tr ail er view * -show trailer view
Auto . front /rear camer a change * -the view be­
h ind the veh icle
( Rear mode) is displayed auto­
mat ica lly when you shift into reverse gear . The
view in front of the vehicle
( Fr ont mode) is d is­
p layed automatically whe n you shift into t he for­
ward gea rs. When first activating in a forwar d
gear with the P"'~ button, the front s ide v iew is
disp lay ed
(Co rner view (front) mode).
If yo u do not se t the./, th e view behind the vehi ­
cle
( Re ar mode) is a lways d isplayed and it does
not switch to the
F ront mode when a forward
gear is selected .
{D Tips
-Seve ral menus can be accessed w ith the
right contro l button only when the park ing
aid is active.
- T he volume settings are a utomat ica lly stor­
ed and ass igned to the remote cont ro l key
that is being used.
Error messages
Applies to: vehicles with a rear parking system/parking sys­
tem plus/rearview camera/peripheral cameras
Ill Rear parking aid : malfunction! Ob stacle s
c annot be d etected
Ill Front parking aid : malfunction! Obstacles
cann ot be d etected
Ill Parking aid: mal funct ion! Obstacles cannot
be d etected
When one of these messages appears, there is a
system ma lf u nction. The LED in the P
11.A. button a l­
so blinks when switching it on. The relevant mes­
sage only appears again when you manua lly act i­
vate the parking aid w it h the button .
Ill Rear pa rki ng a id: obstacle detect ion restrict·
ed
132
The rear cross -traffic ass ist* is not ava ilable
¢ page 119 , Rear cross-traffic assist. Either the
ESC is switched off, or the radar sensors may be
covered by a b ike rack, st ickers, leaves, snow or
other objects . Switch the ESC on, or clean the
area in front of the sensors if necessary
¢ page 116, fig. 112 . If this message continues
to be displayed, dr ive immediately to a n author­
iz ed Audi dealer or author ized A udi Se rvice Fa cili­
ty to have the m alfu nction repaired.
Parking system plus*
If a sensor or speaker is faulty, the J¼ symbol
will appear in front of/behind the vehicle in the
Infotai nment system d isplay. If a rear sensor is
faulty, only obstacles that are in areas @and @
a re show n
¢page 125, fig. 119 . If a front senso r
is fau lty, only obsta cles tha t are in a reas © and
@ are shown.
Peripheral cameras*
There is a system malfunction if the % symbol
appears and the co rresponding area of the dis ­
play is show n in bl ack. The c amera is not wo rking
i n th is area.
D rive to an author ized A udi dealer or autho riz ed
A udi Se rvice Facil ity immed iate ly to have the
malfu nction cor rec ted .
Trailer hitch
Applies to: vehicles with a rear parking system/parking sys­
tem plus/rearview camera/peripheral cameras and trailer hitch
When the trailer soc ket is in use, th e parking sys­
tem rear sensors are not act ivated when you sh ift
i nto reverse gear or when you press the p,,1, but­
ton . Th is resu lts in the following restrict ions .
Rear parking system*
There is no distance warning.
Park ing system plus*
There is no distan ce warn ing for the rear. The
front senso rs remain activated. The visu al display
switches to trailer mode . ..,.

<( a, .... N ,....
N .... 0 0
3 a,
Rearview camera* /Peripheral cameras*
There is no distance warning for the rear. The
front sensors remain activated. The visual display
switches to trailer mode. The rearview camera
image will not show the orientation lines and the
blue surfaces.
Trailer hitches that are not installed at the
factory may cause the parking system to mal­
function or they may restrict its function. Parking
systems
133

Intelligent Technology
Snow chains
If there are snow chain laws, snow chains must
also be used on vehicles with a ll wheel drive
¢ page 332, Snow chains.
Replacing tires
For vehi cles w ith all whee l dr ive, only whee ls with
the same rolling circumferen ce shou ld be used .
Avoid using tires w ith different tread depths
¢ page 324, New tires or wheels .
Offroad vehicle?
Your Audi is not an offroad vehicle - the re is not
e nough g ro und clea rance. For this reason, avo id
d iffi cult terrain .
_& WARNING
-Also, in vehicles with all wheel drive, adapt
yo ur driving style to the current road and
t raffic conditions . Do not let the increased
sa fety provided tempt you into tak ing risks,
because th is increases the r isk of an acci­
dent.
- The brak ing ability of your vehicle is limited
to the traction of the wheels. In this way, it
is not diffe rent from a two whee l dr ive vehi­
cle . Do not be tempted to accelerate to a
high spee d when t he road is slippe ry, be­
ca use this increases the risk of an accident.
- Note that on wet streets, the front wheels
can "hy droplane" if dr iving at speeds that
are too hig h. Unlike front whee l drive
vehicles, the eng ine does no t r ev highe r su d­
denly when the vehicle begins hydroplaning .
For this reason, pay attention to the road
condit ions regar dless of you r speed to re­
duce the r isk o f an accident.
Energy management
The starting ability is optimized
The energy management system manages the
electrical energy distribution and optimizes the
availability of electrical energy for starting the
engine.
When a ve hicle w ith a co nventional e nergy sys ­
tem is not driven for a long time, the battery is
138
dra ined by equipment (for examp le, the immobi l­
izer) . In certain circ umstances, there could may
not be enough ene rgy to sta rt the eng ine.
Yo ur vehicle is equipped wi th an inte lligen t ener ­
gy management system for dist ributing elec trici ­
ty. This significant ly improves the starting ability
and increases the batte ry life.
The ene rgy management sys tem Is m ade up of
batte ry diagnosis , standby current manage­
ment
and dynamic ene rgy management .
Battery diagnosis
The ba ttery diagnos is determines the batte ry
c ha rge level. The sensor s de ter mine the batte ry
vo ltage, the batte ry cu rrent, and the batte ry
tempera ture. The current cha rge level and the
perfo rmance of the battery a re determined base d
on this .
Idling current management
The idling cur rent m an age ment decreases the
energy used while parked . With the engine
switched off, it manages the energy distrib ution
to the different e lectr ica l components. Data from
the battery d iagnosis is taken into account for
th is.
Depend ing on the battery charge leve l, electrical
equipment is switched off one item after the oth ­
er, to prevent the battery from drain ing and to
maintain the sta rting ability.
Dynamic energy management
W hile driv ing, dynam ic energy man agement dis ­
tributes the appropr iate amo unt of energy to the
electrica l eq uipment. It contro ls t he battery
charge level so that mo re energy is not used then
i s be ing generated in order to maintain an opti­
mal battery c harge level.
(D Tips
- Energy management cannot overcome the
laws of physics. Note that the charge level
and length of the battery life are limited.
- When the sta rting ability is endangered, the
(•) indicator light t urns on¢
page 31 .

<( a, .... N ..... N .... 0 0
3 a,
The shoulder belt should lie as close to the center
of the collar bone as possib le and should fit well
on the bod y ¢
A in Safety belt position on
page 249.
.. Push
the loop- around fittings up ¢ fig . 21 8@ ,
or
.. squeeze to gether the@ button, and push the
loop-around fittings
do wn@ .
.. Pull the belt to make sure that the upper at­
tachment is p roperly engaged .
A WARNING
Always read and heed all WARNINGS and oth­
er important informat ion¢
page 247.
With the front seats, the height adjustment
of the seat can also be used to adjust the po­
sition of the safety belts.
Improperly worn safety belts
Incorrectly positioned safety belts can cause se­
vere injuries.
Wearing safety belts improperly can cause seri­
ous injury or death. Safety belts can only work
when they are correctly pos itioned on the body .
Improper seating positions reduce the effect ive­
n ess of safety be lts and will even inc rease the
ris k of injury and death by mov ing the safety bel t
to cr it ica l areas of the body. Imp roper seating
positions also increase the risk of serious inj ury
and death when an airbag deploys and strikes an
occ upant who is not in the co rrect seat ing posi­
tion. A driver is respons ible for the safety of all
vehicle occupants and espec ia lly for children.
Therefore:
.. Never permit anyone to ass ume an incorrect
s itting position in the veh icle wh ile traveling
¢ &, .
A WARNING
Improperly worn safety belts i ncrease the risk
of serious personal injury and death wheneve r
a vehicle is be ing used.
S afet y be lts
- Always make sure that all veh icle occupants
are correctly restrained and stay in a correct
seating position whenever the vehicle is be­
ing used.
- Always read and heed all WARNINGS and
other important informat ion¢
page 247.
Belt tensioner
How safety belt pretensioners work
Reversible safety belt pr etensioners
T he safety belts on the front seats are equ ipped
wi th reve rsible safe ty belt pretensioners. The fol­
l owing func tions a re available when the dr iver's/
front passenge r's safety belts are fastened:
- I n ce rtain driving situations, the safety bel ts
may tig hten w it h a reve rsib le tensioning func ­
t ion
¢ page 107 .
-The s afe ty be lts may also tighten with thi s re-
versible tens ion ing f unct ion in m inor collisions.
Pyrotechnic safety belt pretens ioners
All safety belts except for the safety belt in the
center seat position of the rea r seat are equipped
with safety belt pretensioners. The sys tem is acti­
va ted by sensors in front, side and rear-end co lli­
s ions of great severity and in a rollover. Th is
t ightens the belt and takes up belt slack¢&.
in
Service and disposal of safety belt pretensioner
on page 252.
Taking up the slack helps to re­
duce forward occupant movement during a co lli­
s io n.
(!) Tips
The pyrotechn ic safety belt pretensioners can
on ly be act ivated once.
- The safety belt pretensione rs do not deploy
in minor frontal, side and rear-end colli­
sions.
- When the pyrotechn ic safety belt preten­
sioners are activated, a fine dust is released.
Th is is normal and is not caused by a fire in
the vehicle .
- The relevant safety requirements must be
observed when the vehicle or components
of the sys tem are scrapped. An authorized
Audi dealer or qua lified wor kshop is fami lia r .,.
251

switched on and turns the airbag indicator light
on when a malfunction in the one of the system
components is detected
c::> page 265. Because
the front passenger seat contains important
parts of the Advanced Airbag System, you must
take care to prevent it from being damaged .
Damage to the seat may p revent the Advanced
Airbag System for the front passenger seat from
doing its job in a crash.
The f ront Ad vanc ed Airb ag Sy stem con sist s
of the following:
- Crash sensors in the front of the vehicle that
measu re vehicle accelerat ion/ decelerat ion to
provide information to the Advanced Airbag
System about the severity of the crash.
- An electronic cont rol unit, with integrated
c rash sensors for front and side impacts. The
contro l unit "decides" whether to fire the front
airbags based on the information received from
the crash sensors . The contro l unit also "de­
cides" whether the safety be lt pretensioners
should be activated .
- An Advanced Airbag with gas generator and
contro l valve for the driver ins ide the steer ing
wheel hub.
- An Advanced Airbag with gas generator and
contro l valve inside the instrument panel for
the front passenger.
- A capac itive passenger detect ion system under­
neath the front passenger seat cover. This sys­
tem measures the electrical capac itance of the
person in the seat . The information registered
i s sent conti nuously to the electron ic cont rol
unit to regulate deployment of the front Ad­
vanced Airbag on the passenge r side.
- An airbag monitoring system and indicator
li ght
mi n the instrument cluster.
- A sensor in each front seat registers the dis­
tance between the respective seat and the
stee ring wheel or instrument panel. The info r­
mation reg istered is sent contin uous ly to the
electronic control unit to regulate deployment
of the front Adv a need Airbags.
- T he
PASSE NGER AIR BAG OFF~; ON @ light
; comes on in the headliner
c:> page 265,
~ fig. 222 and te lls you the status of the Ad-
8 vanced Airbag on the passenger side. 0
3 Airb ag sys tem
-A sensor in the safety belt latch for the driver
and for the front seat passenger that senses
whether that safety be lt is latched or not and
transmits this information to the electronic control un it.
A WARNING ,.__
Damage to the front passenger seat can pre­
vent the front airbag from working properly .
- Improper repair or disassembly of the front
passenger and driver seat will prevent the
Advanced Airbag System from funct ion ing
p roperly.
- Repairs to the front passenger seat must be
pe rformed by qualified and properly trained
wo rkshop personne l.
- Never remove the front passenger or driver
seat from the vehicle .
- Never remove the upholstery from the front
passe nger seat.
- Never d isassemble or remove parts from the
seat or disconnect w ires from it.
- Never carry sharp objects in your pockets or
put them on the seat. The capacit ive pas­
senger detect ion mat in the front passenger
seat will not function p roperly if it is punc­
tured.
- Never carry things on your lap or carry ob­
jects on the front passenge r seat. Such ob ­
jects ca n infl uence the capacitance reg is­
tered by the capacitive passenger detection
system, so that incorrect information is pro­
vided to the airbag control unit.
- Never store items unde r the front passenger
seat . Parts of the Advanced Airbag System
under the passenger seat could be dam­
aged, preventing them and the airbag sys­
tem from working properly.
- Never p lace seat covers or replacement up­
holstery that have not been specifically ap­
proved by Audi on the front seats.
- Seat covers can prevent the Advanced A ir­
bag System from recognizing child re­
stra ints or occupants on the front passenger
seat and prevent the side airbag in the seat
backrest from deploying properly .
- If a seat heater has been retrofitted or oth- erwise added to the front passenger seat ,
~
261

Airbag system
A WARNING
A child in a rearward-facing child safety seat
installed on the front passenger seat will be
seriously injured and can be killed if the front
airbag inflates - even with an Advanced Airbag
System.
- The inflating airbag will hit the child safety
seat or infant carrier with great force and
will smash the child safety seat and child against the backrest, center armrest, door
or roof.
- 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 be­ cause of 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 airbag system inspected by your authorized Audi dealer .
A WARNING
Objects between you and the airbag will in­
crease the risk of injury in a crash by interfer ­
ing with the way the airbag unfolds or by be­
ing pushed into you as the airbag inflates.
- Never hold things in your hands or on your
lap when the vehicle is in use .
- Never transport items on or in the area of
the front passenger seat . Objects could
move into the area of the front airbags dur­
ing braking or other sudden maneuvers and
become dangerous projectiles that can
cause serious personal injury if the airbags
inflate.
- Never place or attach accessories or other
objects (such as cupholders, telephone
brackets, large, heavy or bulky objects) on
the doors, over or near the area marked
"AIRBAG" on the steering wheel, instru­
ment panel, seat backrests or between
those areas and yourself . These objects
could cause injury in a crash, especially
when the airbags inflate .
- Never recline the front passenger's seat to
transport objects. Items can also move into
264
the area of the side airbag or the front air­
bag during braking or in a sudden maneu­
ver. Objects near the airbags can become projectiles and cause injury, particularly
when the seat is reclined .
- Never place or transport objects on the
front passenger seat. Objects on the front
passenger seat could cause the capacitive
sensor in the seat to signal to airbag system
that the seat is occupied by a person when it
in fact is not, or that the person on the seat
is heavier than he or she actually is. The
change in electric capacitance because of
such objects can cause the passenger front
airbag to be turned on when it should be
off, or can cause the airbag to work in a way
that is different from the way it would have
worked without objects on the seat .
- Always make sure that there is nothing on
the front passenger seat that will cause the
capacitive passenger detection system in
the seat to signal to the Airbag System that the seat is occupied by a person when it is
not , or to signal that it is occupied by some ­
one who is heavier than the person actually
sitting on the seat. The presence of an ob­
ject could cause the passenger front airbag
to be turned on when it should be off, or
could cause the airbag to work in a way that is different from the way it would have
worked without the object on the seat .
A WARNING
The fine dust created when airbags deploy can
cause breathing problems for people with a
history of asthma or other breathing condi­
tions .
- To reduce the risk of breathing problems,
those with asthma or other respiratory con­
ditions should get fresh air right away by
getting out of the vehicle or opening win­
dows or doors.
- If you are in a collision in which airbags de­
ploy , wash your hands and face with mild
soap and water before eating.
- Be careful not to get the dust into your eyes,
or into any cuts or scratches. ..,_