2016 AUDI A4 ABS

Safe ty belts
Never rely o n airbags alone for protection . Even
when they deploy, airbags provide only additional
protection. A irbags are not supposed to dep loy in
all kinds of accidents. A lthough your Audi is
equipped w ith airbags, all vehicle occupants, in­
cluding the driver, must wear safety belts cor ­
rectly in order to minimize the risk of severe in­
jury or death in a crash .
Remember too, that airbags will deploy only
once and that your safety belts are a lways there
to offer protect ion in those accidents in wh ic h
airbags are not supposed to deploy or when they
have a lready dep loyed. Unbel ted occupants can
a lso be thrown o ut of the veh icle where eve n
mo re severe or fatal injur ies can occur .
It is also important for the rear pass enge rs to
wear safety belts co rrectly. Unbelted passengers
i n t he rea r seats endanger no t on ly themse lves
but also the drive r and other passengers
~ fig . 145. In a frontal collision they will be
thrown forward violently, where they can hit and
in jure the driver and/or front seat passenger.
Safety belts protect
People think it's possible to use the hands to
brace the body in a minor collision . It's simply
not true!
F ig . 14 6 Driver is correctly restrai ned in a sudde n braking
m aneuver
Safety belts used properly can make a b ig d iffer­
ence. Safety belts help to keep passengers in
their seats, gradually reduce energy levels ap­
plied to the body in an accident, and he lp prevent
the uncont rolled moveme nt that can cause seri­
ous injur ies. In addition, safety belts reduce the
danger of being thrown out of the veh icle .
132
Safety be lts attach passengers to the car an d give
them the benefit of being s lowed down more
gently or "soft ly" thro ugh the "give" in the safety
belts, crush zones and other safety feat ures engi­
neered into today's vehicles. By "absorbing" the
k inet ic energy over a longer per iod of t ime, the
safety belts make the forces on the body more
"tole rab le" and less likely to cause inj ury.
Although these examples are based on a frontal
collision, safety be lts ca n also substantially re ­
duce the r isk o f injury in ot her kinds of crashes.
So, whethe r yo u're on a long trip or just going to
the cor ne r store, a lways b uckle up and make s ure
othe rs do, too. Ac ciden t stat ist ics show that veh i­
cl e o ccupants prope rly wearing safety bel ts have
a lowe r risk of being injured and a m uch better
chance of surviving an acc ident . Properly using
safety be lts also great ly increases the ability of
the supp lemental airbags to do their job in a col­
li sion. For this reason, wearing a safety belt is le­
gally required in most countries including much
of the United States and Canada .
Although your Aud i is equipped with airbags, you
still have to wear the safety belts provided. Front
airbags, for examp le, are activated only in some
frontal collisions. The front airbags are not act i­
vated in all frontal collisions, in side and rear co l­
li sions, in roll overs or in cases where the re is not
eno ugh deceleration throug h impa ct to the front
of the vehicle. The same goes for the other a irbag
systems in your Audi. So, always wear your safety
belt and make sure everybody in your vehicle is
properly rest rained!
Important safety instructions about safety
belts
Safety belts must always be correctly positioned
across the strongest bones of your body.
.,. Always wear safety belts as illustrated and de ­
scribed in this chapter.
.,. Make sure that your safety be lts are always
ready fo r use a nd are not damaged .

Airbag syste m
Front airbags
Description of front airbags
The airbag system can provide supplemental
protection to properly restrained front seat occu­
pants.
Fig. 152 Location of driver airbag: in steering whee l
Fig. 153 Location of front passenger's airbag: in the in­
strument panel
Your veh icle is equipped with an "Advanced Air­
bag System" in compliance with Un ited States
Federa l Motor Vehicle Safety Standard
(FMVSS) 208, as well as Canada Motor Vehicle
Safety Sta ndard (CMVSS) 208 as app licable at
the time your vehicle was manufactured. The
safety belts for the seats have "pretensioners"
that help to take slack out of the belt system.
The pretensioners are also activated by the elec­
tronic control unit for the airbag system.
The front safety be lts also have load limiters to
help reduce the forces applied to the body in a
crash.
The airbag for the driver is in the steering wheel
hub
<=>fig . 152 and the airbag for the front pas­
senger is in the instrument panel
<=>fig. 153. The
general location of the airbags is marked "AIR­
BAG".
142
There is a lot you need to know about the airbags
in your vehicle . We urge you to read the detailed
i nformation about airbags, safety belts and child
safety in this and the other chapters that make
up the owner's literature. Please be sure to heed
the WARNINGS -they are extremely important
for your safety and the safety of your passengers,
especially infants and small children .
.&_ WARNING -
Never rely on airbags alone for prote ct ion.
- Even when they deploy, airbags provide only supp lemental protection.
- Airbag work most effectively when used with properly worn safety be lts.
- Therefore, always wear your safety belts and make sure that everybody in your veh icle is
properly restrained .
.&_ WARNING
A person on the front passenger seat, espe­
cially infants and small ch ildren, wi ll receive
serious inju ries and can even be killed by be­
ing too close to the airbag when it inf lates.
- Although the Advanced Airbag System in
-
your vehicle is designed to turn off the front passenger airbag i f an infant or a small child
is on the front passenger seat, nobody can
absolutely guarantee that deployment un­
der these special conditions is impossible in
all conceivable situations that may happen
during the useful life of your vehicle.
- The Advanced Airbag System can deploy in
accordance with the "low risk" option under
the U.S. Federal Standard if a child that is
heav ier than the typical one-year old ch ild is
on the front passenger seat and the other
conditions for airbag deployment are met.
- Accident statistics have shown that children are generally safer in the rear seat area than
in the front seat ing pos ition.
- For their own safety, all chi ld ren, especially
12 years and younger, should always ride in
the back proper ly restrained for their age
and size .

Airbag syste m
-a small adu lt or teenager is on the front pas ­
senger seat
- a passenger who is not sitting upright with
their back against a non -reclined backrest with
their feet on the vehicle floor in front of the
seat is on the front passenger seat.
I f the front passenger airbag dep loys, the Feder ­
al Standard requires the airbag to meet the "low
risk" deployment criteria to help reduce the risk
of injury through interaction with the airbag.
"Low risk" deployment occurs in those crashes
that take place at lower decelerations as def ined
in the electronic control unit.¢
page 148
Alway s remember: Even though your vehicle is
equ ipped w ith Advanced Airbags, the safest place
for children is properly restrained on the back
seat . Please be sure to read the important infor­
mat ion in the sections that follow and be sure to
heed a ll of the WARN INGS.
A WARNING
To red uce the risk of inj ury when an ai rbag in­
fla tes, a lways wear safety bel ts p roperly.
- If you are unrestrained, leaning fo rwa rd, s it­
t ing s ideways or o ut of pos ition in any way,
yo ur risk of in jury is much h igher .
- Yo u will also re ceive serious injur ies and
could even be killed if you are up aga inst the
airbag or too close to it when it inflates -
even with an Advanced Airbag
¢page 138.
A WARNING
A child in a rearward-facing chi ld safety seat
installed on the front passenger seat wi ll be
ser iously injured and can be killed if the front
airbag inflates - even w ith an Advanced Airbag
System.
- Although the Advanced A irbag System in
your vehicle is designed to turn off the front
airbag when a rearward-facing child re­
straint has been installed on the front pas­
senger seat, nobody can absolutely g uaran­
tee that deployment is impossible in all con­
ceivable s ituations that may happen during
the useful life of your vehicle .
- The inflating a irbag w il l hit the child safety
seat or infant c arrier with great force and
144
w ill smash the child safety seat and child
aga inst the back rest, center armrest, door,
or roof.
- Always install rearward-facing child re­
straints in the back 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 rea r-facing child safety seat in a rear
seating posi tion and have the ai rbag system
inspected by your au thori zed Au di dealer.
A WARNING
If, in exceptional ci rcums tances, you must in­
stall a forward-facing child res traint on the
front passenger's seat:
- Always make sure the forward-fa cing sea t
has been des igned and certified by its man ­
ufacturer for use on a front seat with a pas­
senger front and side airbag.
- Never put the fo rward -facing child restraint
up against or very nea r the instrument pan ·
el.
-Always move the passenge r seat into its
rearmost position in the seat's fo re and aft
ad justment range, as far away from the a ir­
bag as poss ible, before install ing the for­
ward-facing chi ld restraint. The backrest
m ust be adjusted to an upr ight position.
- Make sure that the
PASSENGER AIR BAG
OFF
li ght comes on and stays on all t he time
wheneve r the ign it ion is switched on.
Advanced Airbag System components
The fro nt passenge r seat i n your veh icle has a lot
of ve ry important parts of the Advanced A irbag
System i n it. These parts incl ude t he weight­
sens ing mat, senso rs, wir ing, bracke ts, and
more . The f unction o f the system in the front
passenger seat is checked by the electro nic con­
tro l unit when the ignition is on . The control unit
monitors the Advanced Airbag System and turns
the airbag ind icator light on when a malfunction
i n the system components is detected. The func-
tion of the a irbag ind icator light is described in .,_

Airbag system
@ For the sake of the environment
Undeployed airbag modu les and pretension­
ers might be classified as Perchlorate Materi­
al -special handling may apply, see
www.dtsc.ca.gov/hazardouswaste/perchlo­ rate . When the vehicle or parts of the re­
straint system including airbag modules safe­
ty belts with pretens ioners are scrapped, all
applicable laws and regulat ions must be ob­
served. Your authorized Audi dealer is familiar
with these requirements and we recommend
that you have your dealer perform this service
for you.
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
cha nge the way that the Advanced Airbag System
pe rforms in a crash. For example, using tire-r im
comb inat ions not approved by Audi, lower ing the
veh icle, changing the stiffness of the suspens ion,
including the spr ings, suspension struts, shock
absorbers etc . can change the forces that are
measured by the airbag sensors and sent to the
electronic control unit . Some suspens ion changes
can, for example, increase the force levels meas­
ured by the sensors and make the airbag system
deploy in crashes in wh ich it would not deploy if
the changes had not been made. Other ki nds of
changes may reduce the force levels measured by
the sensors and preven t the airbag from deploy­
ing when it should .
A WARNING
Changing the vehicle's suspension including
use of unapproved tire-rim combinations can
change Advanced A irbag performance and in ­
crease the risk of serious personal injury in a
crash.
- Never install suspension components that
do not have the same performance charac­
teristics as the components originally insta l­
led on your veh icle.
- Never use tire-rim comb inations that have
not been approved by Audi.
152
A WARNING
Items stored between the safety belt buckle
and the center console can cause the sensors in the buckle to send the wrong information
to the electronic control module and prevent
the Advanced A irbag System from working
properly.
- Always make sure that nothing can inte rfe re
w ith the safety belt buckles and that they
are not obstructed.
Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained occupants.
Fig. 156 S ide ai rbag locatio n in the dr ive r's seat
The side airbags are located in the sides of the
front seat backrests
¢ fig . 156 and the rear back­
rest facing the doors. They are identified by the
word "AIRBAG".
The side airbag system basically consists of:
-the electronic control module and external side
impact sensors
- the two airbags located in the sides of the front
backrests and the two airbags" located in the
rear backrest
- the airbag warning light in the instrument clus-
ter.
The airbag system is monitored electronica lly to
make certain that it is functioning proper ly at all
times. Each time you turn on the ignition, the air­
bag system indicator light will come on for a few
seconds (self diagnostics). .,,.

Child safety
BAG OFF light does not stay on whenever
the ignition is switched on.
Booster seats and safety belts
Properly used booster seats can help protect
children weighing between about 40 lbs. and 80
lbs. (18 kg and 36 kg) who ore less than 4 ft .
9
in. (57 inches/1.45 meters) tall.
Fig. 164 Rear seat: child properly restra ined in a booster
seat
The vehicle's safety belts alone will not fit most
children until they are at least 4
ft. 9 in. (57 in­
ches/1.45 meters) tall and weigh about 80 lbs.
(36 kg). Booster seats raise these children up so
that the safety belt will pass properly over the
stronger parts of their bodies and the safety belt
can help protec t them in a crash.
• Do not use the convertible locking retractor
when using the vehicle's safety belt to restrain
a child on a booster seat.
• The shoulder be lt must lie as close to the cen­
ter of the child's collar bone as possible and
must lie flat and snug on the upper body. It
must never lie across the throat or neck. The
lap belt must lie across the pelvis and never
across the stomach or abdomen. Make sure the
belt lies flat and snug. Pull on the belt to tight­
en if necessary .
• If you must transport an older child in a boos­
ter seat on the front passenger seat, you can use the safety belt he ight adjustmen t to help
adjust the sho ulder portion properly .
• Secu re unu sed safety belts on the rear seat
~page 163.
Children up to about 40 lbs. ( 18 kg) are best pro­
tected in ch ild safety seats designed for their age
166
and weight. Experts say that the skeletal struc­
ture, particularly the pelvis, of these children is
not fully developed, and they must not use the
vehicle safety be lts without a suitable child re­
straint.
It is usually best to put these children in appro­
priate booster seats. Be sure the booster seat
meets all applicable safety standards.
Booster seats raise the seating position of the
child and reposition both the lap and shoulder
parts of the safety belt so that they pass across
the chi ld's body in the right places. The routing of
the belt over the child's body is very important
for the child's protection, whether or not a boos­
ter seat is used. C hil dre n age 12 and u nder must
always ride in the rear seat.
Children who are at least 4 ft. 9 in. (57 inches/
1.45 meters) tall can generally use the vehicle's
three point lap and shoulder belts. Never use the
l ap belt portion of the vehicle's safety belt a lone
to restrain any child, regard less of how big the
child is . Always remember that children do not
have the pronounced pelvic structure required for
the proper function of lap be lt portion of the ve­
hicle's three point lap and shoulder belts. The
ch ild's safety absolutely requires that a lap belt
portion of the safety belt be fastened snugly and
as low as possible around the pelvis. Never let
the lap belt portion of the safety be lt pass over
the chi ld's stomach or abdomen.
In
a crash, airbags must inflate w ithin a blink of
an eye and with considerable force. In order to do its job, the airbag needs room to inflate so that it
will be there to protect the occupant as the occu­
pant moves forwa rd into the airbag.
A vehicle occupant who is out of pos it ion and too
close to the airbag gets in the way of an inflating
airbag. When an occupant is too close, he or she
will be struck vio lent ly and will receive serious or
possibly even fatal injury.
In order for the airbag to offer protect ion, it is
i mporta nt that all vehicle occupants, especially
any ch ildren, who must be in the fron t seat be­
cause of exceptional circumstances, be properly
restrained and as far away from the airbag as
possible. By keeping room between the child's ..,_

..... N
0 ::..:: co ..... ..... shared, please see your contract with the
wireless telecommunications provider and the
"About Aud i connect" tab in your vehicle's
MMI*:
IMENU I button> Audi connect > About
Audi conn ect.
Electronic Stabilization
Control (ESC)
Description
ESC helps to improve road ho ld ing and vehicle
dynamics to help reduce the probability of skid­
d ing and loss of veh icle control. It works only
when the engine is runn ing . E SC detects certain
d ifficult dr iving sit uat ions, including when t he
ve hicl e is begin ning to spin (yaw) out of co ntro l
a nd helps you to ge t the veh icle back under con­
tro l by se lective ly bra king the wheels, and/or re ­
d ucing engine powe r and provid ing steering as­
sistance to help hold the vehicle on the dr iver's
intended course. The indicator light
GJ in the in­
strument cluster blinks when ESC is taking action
to help you co ntro l the vehicle.
ESC has limitations. It is important to remember
that ESC cannot overcome the laws of physics. It
will not a lways be able to help out under all con­
d itions you may come up aga inst. For example,
ESC may not always be able to help you master
situations where there is a sudde n change in the
coeff icient of friction of the road surface. When
there is a section of dry road that is sudde nly cov­
e red with wate r, slush o r snow, ESC cannot pe r­
form the same way i t wo uld on the dry s urface . If
the vehicle hydrop lanes (rides on a cushion of wa­
ter i nstead of t he road su rface), ESC wi ll not be
ab le to he lp you steer the ve hicle because contact
with the pavement has been interrupted and the
ve hicle cannot be b raked or steered. Dur ing fast
cornering, pa rticula rly on w inding roads, ESC
cannot always deal as effect ively w it h difficult
d riving si tuations tha n at lowe r speeds. When
tow ing a t raile r, ESC is no t able to help you re­
g ai n con trol as it would if you we re not towing a
tra iler .
A lways adjust yo ur speed and driving sty le to
road, traffic and weathe r co nd itions. ESC canno t
override the vehicle's physical lim its, increase the
Intellig ent Technology
available t ract ion, or keep a vehicle on the road if
road depart ure is a resu lt of driver inattention .
Instead, ESC improves the possib ility o f keeping
the vehicle under contro l and on the road d uring
extreme maneuvers by us ing the driver's steer ing
i nputs to help keep the veh icle go ing in the in ­
tended direction.
If you are traveling at a speed
that causes you to run off the road before ESC
c an p rovide any assistan ce, you may not exper i­
en ce the benefi ts of ESC.
ESC is swi tched o n all the time . In certa in s itua­
t ions when you need less tract ion, you can sw itch
off AS R by press ing the button
11) c:> page 178,
fig. 173 o r c:> page 178, fig . 174. Be s ure to
swi tch ASR on again w hen you no longe r need
l ess trac tion.
T he following systems are integ ra ted in the ESC:
Anti-lock brak ing system (ABS)
ABS prevents the wheels from locking up w hen
braking. The vehicle can still be steered even d ur­
i ng hard braking. Apply steady p ressure to the
brake pedal. Do not pump the peda l. A p uls ing in
t h e br ake peda l indicates that the system is help­
i ng yo u to b rake the vehi cle.
Brake assist system
T he brake assist system can decrease braking dis­
tance . It increases b raking powe r when the dr iver
presses the b rake peda l quickly in emergency sit­
u at io ns. You mus t press and ho ld the br ake pedal
u nt il t he s ituat ion is ove r. In vehicles wi th adap­
tive cru ise control *, the brake assist system is
more sensitive if the distance detected to the ve ­
hicle ahead is too sma ll.
Anti-slip regulation (ASR )
ASR reduces engine powe r whe n the dr ive whee ls
begi n to spin and adapts the fo rce to the road
co ndit ions . Thi s makes it easier to start, acce ler ­
ate and d rive up hills .
Electronic differential lock (EDL)
T he ED L brakes wheels t hat are spi nning and
transfe rs the dr ive power to the o ther dr ive
whee l or wheels if the vehicle is equ ip p ed with
all -wheel drive*. This function is not ava ilab le at
higher speeds. .,.
177

Inte llig ent Techn olo gy
In extreme cases, EDL automatically switches off
to help keep the brake on the braked wheel from
overheating. EDL will switch on aga in automati­
cally when conditions have returned to normal.
St eer ing r ecomm endation
The ESC helps to stabilize the vehicle by chang ing
the steering torque .
I n vehicles with dynamic steering*, ESC also
helps to stabilize the stee ring in critical situa­
tions.
Electron ic inter axle differential lock*/
sel ective whe el t orque control *
The electronic interaxle differentia l lock (front
wheel drive) or the selective wheel torque control
(a ll whee l drive) operates when driving through
curves . The front wheel on the inside of the curve
or both wheels on the inside of the curve are
braked selectively as needed. This allows more
precise driving in curves. The applicable system
may not activate when driving in wet or snowy
conditions.
.,&. WARNING
- The ESC and its in tegrated systems canno t
overcome the laws of phys ics. This is espe­
c ially important on slippery or wet roads.
If
the systems begin acting to stabilize your
Switching on /off
vehicle, you should immediately change
your speed to match the road and traffic
conditions. Do not let the increased safety
provided by these systems tempt you to
take risks. Doing so will increase the risk of
a loss of vehicle control, collision and seri­
ous personal injuries.
- Always adapt your speed to road, traffic and
weather conditions. The risk of los ing con­
trol of the vehicle increases when driving
too fast, espec ially through curves and on
slippery o r wet roads, and when driving too
close to vehicles up ahead . The ESC and its
integrated systems cannot always prevent
collisions -there is still a risk of accidents!
- Always accelerate with specia l care on even,
smooth surfaces such as those that are wet
or covered with ice and snow. The drive
wheels can spin even with these assistance
systems that cannot always help to reduce
the risk of loss of vehicle control.
@ Tips
- ABS and ASR only work correct ly when all
four wheels are equipped with identical
t ires. Different tire sizes can lead to a reduc­
t ion in engine power.
- You may hear noises when the systems de­
scribed are working.
ESC turns on automatically when you start the engine .
Fig. 173 Version A: lower center console,~ OFF button
The ESC is des igned to function in levels. Depend­
i n g on the level tha t is selected, the stabilization
function of the ESC is limited or switched off. The
178
Fig. 174 Version B: upper center console,~ OFF button
amount of stabilization contro l w ill diffe r de­
pending on the level.
"' N N N ~ 0:, m

Trailer mod e
Trailer mode
Driving with a trailer
General information
Your Audi was designed primarily for passenger
transportation.
If you plan to tow a trailer, please remember that
the additional load will affect durability, econo­
my and performance.
Trailer towing not only places more stress on the
vehicle, it also calls for more concentration from
the driver.
F or this reason, always follow the operating and
driving instructions provided and use common
sense.
Technical requirements
Tr aile r hitch
Use a weight-carrying hitch conforming to the
gross trailer weight. The hitch must be suitable
for your veh icle and trailer and must be mounted
securely on the vehicle's chassis at a technically
sound
location . Use only a trailer hitch with a re­
movable ball mount . Always check w ith the t rail­
er hitch man ufact urer to make su re that you are
using the co rrect hitch .
Do not use a bump er hit ch .
The hitch must be installed in such a way that it
does not interfere with the impact -absorbing
bumper system. No mod ificat ions should be
made to the vehicle exhaust and brake systems .
From t ime to t ime, check that a ll hitch mount ing
bolts rema in securely fastened.
When you are not tow ing a tra iler, remove the
tra iler hitch ba ll mount . This prevents the hitch
from caus ing damage shou ld your veh icle be
s truck from be hind ¢
,&..
Trailer brakes
If your trailer is equipped with a brak ing system,
check to be sure that it conforms to all regula­
tions .
190
The trailer hydraulic brake system must not be
directly connected to the vehicle's hydraulic
brake system ¢&. .
Safety chains
Always use safety chains between you r vehicle
and the trailer.
Trailer lights
Traile r lights must meet all regulations . Be sure
to check w ith your author ized Audi dealer for cor­
r ec t wiring , switches, and relays.
M irrors
If you are unable to see the traffic behind you us­
ing the regular outs ide mirrors, then you
must in­
stall extended mirrors . It is important that you
always have clear vision to the rear.
.&_ WARNING
- If a tra ile r has e lectr ica l brakes p lease no te
t hat these brakes are not activated by the
factory-fit ted contro l unit -risk of accident!
'
- After removing the trai ler hitch, do not
store it in your vehicle. In case of sudden
braking, the hitch co uld fly forward and in ­
jure you or yo ur passengers.
Operating instructions
Ma ximum traile r we ight
A trailer for your vehicle is limited to a typical
class 1 or class 2 trailer.
Trailer load distribution
Be sure the load in the trai ler is held securely in
place to p revent i t from shifting forward, back ­
ward or sideways.
Nev er allow a pa ssen ger to rid e in a trailer ¢ &.
in Driving instructions on page 191.
Engine cooling system
Towing a tra iler makes the engine work harder . It
i s important that the cooling system's perform ­
ance is up to the additional load. Make sure that
the cool ing system has enoug h fluid.