2015 AUDI A5 warning lights

Audi adaptive cruise control and braking guard
You can set any speed between 20 mph and 95
mph (30 and 150 km/h).
I ndicator lamps and messages i n the instrument
cluster display inform you about the current sys­
tem status and settings .
Switching Audi adaptive cruise control on
11-Pull the lever toward you into posit ion (D
¢ fig. 97. ACC standby appears in the instru­
ment cluster display.
Setting the speed and activating regulation
.,.. To set the current speed, press the !SET ! button
¢ page 11, fig. 4. The set speed is shown in the
tachometer @ and is also shown b rief ly in the
display @¢
fig. 98.
Switching Audi adaptive cruise control off
.,.. Push the lever away from you into position @
until it clicks into place. The message
ACC off
appears.
@ Indicator lights
Ill-Adaptive cruise contro l is switched on. No
veh icles are detected up ahead . The stored speed
is mainta ined .
•- A moving vehicle is detected up ahead. The
adaptive cruise control system regu lates the
speed and distance to the moving vehicle ahead
and accelerates/brakes automatically .
•- When automatic braking is not able to keep
enough distance to a previously detected moving
veh icle up ahead, you must take control and
brake ¢
page 94, Request for driver interven­
tion .
© Display
If adaptive cruise control is not shown in the d is­
play, you can call it up with the
!RESET! button
¢page 23.
Based on the symbo ls in the display, you can de­
termine if the system is mainta ining a distance to
the vehicle ahead and what that distance is.
No vehicle -No vehicle ahead was detected .
White vehicle -A vehicle ahead was detected.
92
Red vehicle -Prompt for the driver to take action
¢page 94.
Both arrows on the scale © indicate the d istance
to the vehicle ahead. No arrow appears when the
vehicle is on an open road and there is no object
ahead. If an object is detected ahead, the arrow
moves on the scale .
The green zone on the scale shows the stored dis­
tance . For info rmation on changing the stored
distance, refer to¢
page 93. If the distance se­
l ected is too close or may soon become too close,
the arrows move into the red zone on the scale .
A WARNING
Improper use of the adaptive cruise contro l
can cause collisions, other acc idents and seri­
ous persona l injuries.
- Pressing the
!SET ! button when driving at
speeds below 20 mph (30 km/h), will auto­
matically accelerate the vehicle to 20 mph
(30 km/h), which is the minimum speed
that can be set.
@ Tips
-If you switch the ign it ion or the adaptive
cruise control off, the set speed is erased
from the system memory.
- The electronic stabilizat ion control (ESC)
and the anti-slip-regulation (ASR) are auto­
matically turned on when the adaptive
cruise control is turned on. Both systems
cannot be turned off if the adaptive cruise
control is turned on .
Changing the speed
Applies to veh icles: with Aud i adapt ive cru ise control
0
f
•
0
Fig. 99 Selector lever: ch ang ing th e speed

Driving safety
Driving safety
Basics
Safe driving habits
Please remember -safe ty first!
This chapter contains important information,
tips, instructions and warnings that you need to
read and observe for your own safety, the safety
of your passengers and others. We have summar­ ized here what you need to know about safety
belts, airbags, child restraints as well as child
safety. Your safety is for us
priority number 1. Al­
ways observe the information and warnings in
this section - for your own safety as well as that
of your passengers .
The information in this section applies to all
model versions of your vehicle . Some of the fea­
tures described in this sections may be standard
equipment on some models, or may be optional
equipment on others. If you are not sure, ask
your authorized Audi dealer.
A WARNING
- Always make sure that you follow the in­
structions and heed the WARNINGS in this
Manual.
It is in your interest and in the in­
terest of your passengers.
- Always keep the complete Owner's Litera­
ture in your Audi when you lend or sell your
vehicle so that this important information
will always be available to the driver and
passengers.
-
- Always keep the Owner's literature handy so
that you can find it easily if you have ques­
tions .
Safety equipment
The safety features are part of the occupant re­
straint system and work together to help reduce
the risk of injury in a wide variety of occident sit­
uations.
Your safety and the safety of your passengers
should not be left to chance. Advances in tech­
nology have made a variety of features available
to help reduce the risk of injury in an accident.
112
The following is a list of just a few of the safety
features in your Audi:
-sophisticated safety belts for driver and all pas-
senger seating positions,
- belt force limiters for the front seats,
- belt pretensioners for the seats,
- head restraints for each seating position,
- front airbags,
- side airbags in the front seats,
- side curtain airbags,
- special LATCH anchorages for child restraints,
- adjustable steering column.
T hese individual safety features, can work to­
gether as a system to help protect you and your
passengers in a wide range of accidents . These
features cannot work as a system if they are not
always correctly adjusted and correctly used.
Safety is everybody's responsibility!
Important things to do before driving
Safety is everybody's job! Vehicle and occupant
safety always depends on the informed and care­
ful driver.
For your safety and the safety of your passen­
gers,
before driving always:
.,. Make sure that all lights and signals are operat­
ing correctly .
.,. Make sure that the tire pressure is correct.
.,. Make sure that all windows are clean and afford
good visibility to the outside .
.,. Secure all luggage and other items carefully
Q page 60.
.,. Make sure that nothing can interfere with the
pedals .
.,. Adjust front seat, head restraint and mirrors
correctly for your height.
.,. Instruct rear seat passengers to adjust the
head restraints according to their height.
.,. Make sure to use the right child restraint cor­
rectly to protect ch ildren
c> page 151 , Child
safety .
.,. Sit properly in your seat and make sure that
your passengers do the same
Q page 54, Seats
and storage.

Safety belts
General information
Always wear safety belts!
Wearing safety belts correctly saves lives !
This chapter exp lains why safety be lts are neces­
sary, how they work and how to adjust and wear
them correctly .
~ Read all the informat ion that fo llows and heed
all of the instructions and WARNINGS .
A WARNING
Not wearing safety belts or wearing them im­
properly increases the r isk of serious personal
injury and death.
- Safety belts are the sing le most effective
means availab le to reduce the r isk of serious
injury and death in automobile accide nts .
For yo ur protection and tha t of your passen­
gers, always correct ly wear safety belts
when the veh icle is moving.
- Preg nant wome n, injured, or physically im­
paired pe rsons mu st also use safety belts .
Lik e all ve hicle occu pants, t hey are more
likely to be seriously injured if they do not
wea r safety belts . The best way to protect a
fetus is to protect the mother -th rougho ut
the enti re pregnancy.
Number of seats
Your Audi has a total of four seating positions:
t wo in the fron t and two in the rear. Each seating
position has a safety belt.
A WARNING
N ot wea ring safety belts or wea ring them im­
prope rly i ncreases the r is k of se rious personal
injury and death.
- Never st rap more than one pe rson, includ­
ing small children, into any belt. It is espe­
ci ally d angerous t o place a safe ty belt over a
c hild sitting on you r lap.
- Never le t mo re people ride in t he ve hicle
t han there are s afety be lts availab le.
Safety bel ts
- Be s ure everyone riding in the vehicle is
properly restrained w ith a separate safety
belt or chi ld restraint.
Safety belt warning light
Your vehicle hos o warning system for the driver
and (on USA models onl y) front seat passenger
to remind you abou t the importance of buckling­
up .
Fig. 1 22 Safety bel t warni ng lig ht in the instr um ent clu s­
te r -enlarged
Before driving off, alway s:
.. Fas ten yo ur sa fe ty belt and make sure you are
wearing it pr operly.
.,, N
"' 0 ..:, ., m
~ Make sure that your passengers also buck le up
and properly wear the ir safety be lts .
~ Protect your children w it h a child rest raint sys­
t em app rop riate for the s ize and age of the chil­
d ren.
The . warn ing light in the instrument cluster
lights up when the ignit ion is switched on as a re­
minde r to fasten the safety be lts. In addition,
yo u w ill hea r a warn ing tone for a ce rtai n period
of time.
Fast en your safety belt now and make sure that
your passenger s also properly put on their safe­
ty belt s.
121

Smart Technology
The following situations are exceptions where it
may be usefu l to switch on sport mode to allow
the wheels to spin : -
Rocking the vehicle to free it when it is stuck
- Driv ing in deep snow or on loose ground
- Dr iv ing with snow chains
Sport mode on ESC/ASR off Sport mode off or
ESC /ASRon
Behavior
The ESC and ASR stabiliza- The stabilization funct ion is The full stabilization func-
tion fu nct ions are limited not
available¢ ,&.. ESC and
tion of the ESC and ASR is
¢ ,&. .
ASR are switched
off. available again.
Operation Press the I!> OF F! button Press and hold the I!> OF FI Press the I!> OF F! button
briefly . button longer than 3 sec-again.
onds .
Indicator II turns on. JI and lf'lii•li~ turn on. II turns off or II and
lights lf'lii•l~~ turn off.
Driver mes- Stabilization control (ESC): Stabilization control (ESC): Stabilization control
sages Sport. Warning! Re stricted off. Warning! Restricted (ESC):
On
stability stability
It is only possible to turn off the ASR up to 30
mph (SO km/h) for veh icles wi th front whee l
drive . At about
45 mph (70 km/h) it automatica l­
ly turns on again. It is possible to turn
off the
ASR at any speed for vehicles with all whee l
drive.
A WARNING
-
You should only sw itch sport mode on or
switch ESC/ASR
off if your driving ab ilities and
road condit io ns perm it .
- The stabilization function is limited when
sport mode is switched on. The dr iv ing
wheels could spin and the veh icle cou ld
swerve, especially on slick or slippery road
surfaces.
- There is no vehicle stabilization when ESC/
ASR are switched
off.
(D Tips
ESC/ASR cannot be switched off or sport
mode cannot be switched on when cruise con­
trol or adaptive cru ise control* is sw itched on .
172
Braking
What affects broking efficiency?
New brake pads
During the first 250 miles (400 km), new brake
pads do not possess their full braking effect, they
have to be "broken in" first¢,&. . You can com­
pensate for this slightly reduced braking power
by pushing harder on the brake pedal. Avoid
heavy braking loads during the break-in period.
Operating conditions and driving habits
The brakes on today's automobiles are still sub­
ject to wear, depending largely on operating con­
ditions and driving habits~,&. . On vehicles that
are either driven most ly in stop-and -go city traf­
fic or are driven hard, the brake pads should be
checked by your authorized Audi dealer more of­
ten than specified in the
Warranty & Mainte­
nance booklet .
Failure to have your brake pads
i nspected can result in reduced brake perform­
ance .
On steep slopes, you should use the braking ef­
fect of the engine . This way, you prevent unnec­
essary wear on the brake system. If you must use
your brakes, do not hold the brakes down contin­
uously. Pump the brakes at intervals.

Smart Technolog y
Clean off accumulated salt coating from
brake discs and pads w ith a few carefu l
brake applications .
- If you damage the front spoiler, or if you in­
stall a d ifferent spoiler, be sure the air flow
to the front brakes is not obstructed. Other­
wise the brake system could overheat reduc ­
ing the effectiveness of the entire brake sys­
tem.
- Failure of one brake c ircuit will impair the
braking capab ility result ing in an increased
stopp ing distance. Avoid driving the veh icle
and have it towed to the nearest autho rized
Audi dealer or qualified workshop.
- Never let the vehicle ro ll to a stop with the
engine shut off .
- If the brake booster is not work ing, the
brake pedal must be pressed considerably
harder to make up for the lack of booste r as­
sistance .
Electro-mechanical
power assist, dynamic
steering
The electro-mechanical power assist helps the
driver when steering.
Power steering adapts electronically based on
the vehicle speed .
Indicator lights and me ssages
• Stee ring defe cti ve! D o not dr ive vehicle!
If this indicator light tu rns on and stays on and
this message appears, the power steering may
have fai led .
Do
not contin ue driving. See yo ur authorized
Aud i dealer o r a qua lified repair facility for assis­
tance.
l ;r- ij Dynami c steering : S ys te m fault! You can
c on tinu e dr iving
If the indicator light turns on and the message
appears, the steer ing may be more difficult to
move or mo re sensitive than us ual. The steer ing
wheel may also be at an ang le when dr iv ing
straight.
174
Drive slowly to your authorized Audi dea ler or
qualified workshop to have the ma lf u nction cor­
rected.
' -r, ij Dynamic ste ering: i nitializing
If this driver message appears and the indicator
li ght is flashing on the i nstrume nt pane l, dynam­
i c steer ing* is being rein it ia lized . After sta rting
the engine, the steer ing whee l w ill move sligh tly.
Re-initialization might be necessary if the steer ­
ing whee l was moved hard to th e left and right
whi le the vehicle was not moving . The display
goe s out as soon as initiali zation is comp lete.
A WARNING
,-
H ave the dynamic steering* system malfunc-
tion repaired as soon as possible by an author ­
ized Audi dealer or qualified workshop - r isk
of accid ent!
@ Tips
- If the . or 'T fl indicator light only stays on
for a short time, you may cont inue driving.
- The dynamic steering* stab ility system s are
not availab le in the event of a system mal­
function .
- For add itional information on dynamic
steering*, refer to<=> page 102 .
Driving with your quattro
Applies to vehicles : wit h all -w hee l drive
With all-wheel drive , all four wheels are driven .
General information
With a ll-wheel drive, power is distrib uted to a ll
fo ur wheels . This happens automatica lly depend­
i ng on your driving style and the road conditions
at the t ime . See also <=> page 1 70 .
A center d ifferential distributes the driving power
variab ly to the front and rear ax le. It works to­
gether w ith select ive whee l torque control , which
activates when drivi ng throug h curves
¢ page 171 . W ith the sport diffe rential*, power
distribution to the rear wheels is var iable and can
be ad justed with d rive select ¢ page 102 .
1111-

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N 1.1'1 ,....,
on necessary precautions e.g. corrosion preven­
tion, maintenance and storage. Pay attention to
addit ional information concern ing the battery.
Refer to
c> page 200.
Economical and environ­
mentally-friendly driving
General
Your personal style of driving will determine the
economy of your vehicle, as well as exhaust and
noise levels.
Fu el economy, environmental impact , and wear
on your engine, brakes and tires largely depend
on three factors:
- your persona l dr iving style
- operating conditions
- technical limitations
If you anticipate what you need to do next and
drive economically, you can easily cut your fuel
consumption by 10-15 percen t. This sec tion will
give you some tips on how you can help the envi ­
ronment and your pocketbook .
(!) Tips
The consumpt ion estimates as published by
ENVIRONMENTAL PROTECTION AGENCY (EPA)
and Transport Canada may not correspond to
your actual consumption on the road, which
w ill vary depending upon vehicle load and
speed, road and weather conditions, trip
length, etc.
Drive smoothly and keep a lookout ahead
Vehicles use the most fuel when they are acceler­
ating.
" Avoid unnecessary accelerating and braking.
Vehicles use the most fuel when they are acceler ­
ating . If you anticipate what is going to happen
next, you will need to brake less and, thus, accel­
e rate less. Let the vehicle coast whenever possi­
ble - for example when yo u see that the next traf­
fic light is red .
Driving and the environment
Avoid full throttle
Driving at moderate speeds saves fuel and im­
proves your mileage .
"Try and keep well below your car's maximum
speed.
Acce lerat ing gently reduces fue l consumption,
engine wear, and does not disturb the environ­
ment .
Fuel consumption, exhaust emissions and engine
noise increase disproportionately at high speeds.
If you drive at approximate ly three quarters of
top speed, fuel consump tion will be reduced by
one half. Never drive faster than the posted
speed l imit and weather cond itions permit .
Reducing unnecessary idling
Even when your car is jus t idling it burns up fuel.
" Shut the eng ine off when you are not driving
the vehicle.
" Do not warm up the vehicle by lett ing the en-
gine run at idle.
It makes sense to shut off the engine in traffic
jams, when wa iting for tra ins to pass a t railroad
crossings, or at traffic lights that have long waits
on red . Turning the engine
off for just 30-40 sec ­
onds saves more fue l than is burned starting the
. . engine again.
It takes a long t ime for the engine to warm up
fully when it is running at idle. However, wear
and noxious emissions are especially high when
the engine is warming up. So you should drive
away as soon as you sta rt the engine and avoid
running at high rpms wh ile the engine is st ill
warming up.
(D Note
Do not leave engine idling unatt ended afte r
starting .
If warning lights should come on to
indicate improper operation, they would go
un heeded . Extended idling also produces
heat, which could result in overheating or oth­
er damage to the vehicle or other property.
179

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Trailer mode Driving with a trailer
General information
Your Audi was designed primarily for passenger
transportation.
If you plan to tow a tra iler, p lease remember that
the additiona l load will affect durability, econo­
my and performance .
T railer towing not on ly places more stress on the
vehicle, it also calls for more concentrat ion from
the driver .
F or this reason, a lways fo llow the operating and
d riving instructions provided and use common
sense.
Technical requirements
Traile r hitch
Use a weight-carrying hitch conforming to the
gross trailer weight. The hitch must be suitable
for your vehicle and trailer and must be mounted
securely on the veh icle 's chassis at a technically
sound
location . Use on ly a tra iler hitc h with a re­
movable ba ll mou nt. Always chec k w ith the t ra il­
e r hitch m anu fac tur er to make sure that you a re
using the co rrec t hitch.
Do not use a bumper hitch .
The hitch must be installed in such a way that it
does not in terfere with the impact-absorbi ng
bumper system. No mod ificat ions should b e
mad e to the vehicle exhaust and brake systems .
Fr om time to t ime, c hec k t hat a ll h itch mou nti ng
bo lts remain sec urely fastened .
When you are no t tow ing a trailer,
remove the
trai ler hitch ball mount . Th is prevents the hitc h
fr om caus ing damage should you r vehicle be
s truck from behind¢,&. .
Trailer brakes
If yo ur tra iler is equipped w it h a braking system,
check to be s ure that it conforms to all regu la­
tions.
Trailer mode
T he trailer hyd raulic brake system must not be di ­
rect ly connected to the ve hicle's hydraulic b rake
system ¢.&. .
Safety chains
Alw ays use s afety ch ains be tween your ve hicle
and t he tra ile r.
Trailer lights
Tra ile r li ghts must meet all regulations. Be sure
to check w it h your author ized Audi deal er for cor­
r e ct w iring, sw itches, and relays.
Mirrors
If you are unable to see the traffic behind you us­
i ng the regular o uts ide mirrors, then you
must in ­
sta ll extended mirrors .
It is importa nt that you
always have clea r vision to the rea r.
_&. WARNING
- I f a trai ler has elec trical brake s please note
th at these b ra kes are not acti va ted by the
factory -fitted contro l unit -ris k of acci dent!
- After removing the t railer hi tch, do n ot store
it in your vehicle . In case o f su dden braking,
the hi tch could fly forward and injure you or
your passe ngers.
Operating instructions
Maximum traile r weight
A trai ler for you r vehicle is limited to a typical
class 1 or class 2 trailer.
Trailer load distribution
B e sure the load in the t ra iler i s held secure ly in
pla ce to prevent it from sh ifting forw ard , back ­
war d or sideways .
Never allow a passenger to ride in a trailer¢.&.
in Driving in struc tion s on page 182.
Engine cooling system
Towing a trailer makes the engine work harder . It
is important that the cooling system's pe rform­
ance is up to the additional load . Ma ke s ure that
t h e coo ling system has enoug h fluid.
IIJJ,
181

Trailer mode
Tire pressure
When tow ing a trailer, inflate the tires of your ve­
hicle to the cold tire pressure listed under " Full
load" on the label located on the driver's side B ­
pillar (visible when the door is open). Inflate
trailer tires to trailer and tire manufacturers'
specifications.
Lights
The headlight settings should be checked with
the trailer attached before driving off . Check to
make sure both vehicle and trailer lights are
working properly.
Safety chains
Be su re trailer safety chains are properly connect­
ed from the trailer to the hitch on the vehicle.
Leave enough slack in the chains to permit turn­
ing corners. When you install safety chains, make
sure they will not drag on the road when you are
driving.
The chains shou ld cross under the trai ler tongue
to prevent it from dropping in case of separation
from the hitch.
Driving instructions
Driving with a trailer always requires extra care
and consideration.
To obtain the best possible handling of vehicle
and trai ler, please note the following:
.. Do not tow a loaded trailer when your car itself
is not loaded .
.. Be especia lly careful when passing other
vehicles.
.. Observe speed limits.
.. Do not drive at the maximum permissible
speed .
.. Always apply brakes early.
.. Monitor the temperature gauge.
Weight distribution
Towing a loaded trai ler with an empty car results
in a highly unstable distribution of weight. If this
cannot be avoided, drive at very low speeds only
to avoid the risk of losing steering control.
182
A "balanced" rig is easier to operate and contro l.
This means that the tow vehicle shou ld be loaded
to the extent possible and permissib le, wh ile
keep ing the trailer as light as possible under the
c ir cumstances. Whenever poss ible, transfer
some cargo to the luggage compartment of the
tow veh icle while observing tongue load require­
ments and vehicle load ing considerat ions .
Speed
The higher the speed, the more difficult it be­
comes for the driver to control the rig. Do not
drive at the maximum permissible speed. Reduce
your speed even more if load, weather or w ind
cond it ions are unfavorab le - particularly when
go ing downh ill.
Reduce veh icle speed
immediately if the trailer
shows the slightest sign of swaying.
Do not try
to stop the swaying by accelerating.
Observe speed limits. In some areas, speeds for
vehicles towing tra ilers are lower than for regular
vehicles.
Always apply brakes early. When dr iving down­
hill, shift into a lower gear to use the engine
braking effect to slow the vehicle. Use of the
brakes alone can cause them to overheat and fail.
Coolant temperature
The coolant temperature gauge¢ page 10 must
be observed carefully. If the needle moves close
to the upper end of the scale, reduce speed im­
med iately and/or turn off the air conditioner .
If the coolant temperature warning light . in
the instrument cluster starts flashing, pull off
the road, stop and let the engine
idle for about
two m inutes to prevent heat build-up .
&_ WARNING
Anyone not properly restrained in a moving
vehicle is at a much greater risk in an acci­
dent. Never let anyone ride in your car who is
not properly wearing the restraints provided
by Audi.
-