2016 AUDI A3 CABRIOLET check engine

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Central locking switch
Fig. 18 Dr ive r's door: cent ral loc king sw itch
.,. To lock the veh icle, press the@! button ¢,&. .
.,. To unlock t he ve hicle, press the~ button
qfig . 18 .
When locking the vehicle with the centra l locking
switch, the follow ing applies :
- Open ing the door and the l uggage compart­
ment lid from the
outside is not possible (for
security such as when stopped at a light) .
- The LED in the central locking switch turns on
when all doors are closed and locked.
- You can open the doors individually from the
inside by pull ing the door handle.
- In the event of a crash with a irbag dep loyment,
the doors un lock automatically to a llow access
to the vehicle.
A WARNING
- The power locking sw itch works w ith the ig­
nition off a nd automatically locks the entire
vehicle wh en the@! button is p ressed.
- The centra l locking switch is inoperative
when the veh icle is locked from the o utside.
- Locked doors make it mo re difficult fo r
eme rgency wor kers to get into the vehicle,
wh ich puts l ives at risk . D o not leave anyone
be hin d in th e veh icl e, especially children .
(!) Tips
Your veh icle w ill lock a utomat ica lly at a speed
of 9 mph (15 km/h)¢
page 27. You can un­
loc k the vehicle again using the ce ntral loc k­
ing ope ning f unct ion .
ll Thi s fun ctio n is not a vail able in all coun tries.
Open ing and closing
Setting central locking
In the MMI, you can set which functions are con­
trolled by the central locking system .
.,. Select: the I CAR ! funct ion button > (Car) Sys ­
t e ms *
control button > Vehicle settings > (Cen­
tral locking)* .
Door unlocking * -
you can decide if All doors or
only the
Driver door shou ld unlock. The luggage
compartment lid also un locks when
All i s select ­
ed . If you se lect
Driver i n a vehicle wi th a conve n­
i ence key*, o nly the doo r whose handle you p ull
will unlock .
Wi th the
Driver settings, all doors a nd the lug ­
gage compartment lid will un lock when yo u press
the ~ button on the remo te contro l key tw ice or
tu rn t he key in the door lo ck cylinde r in the twice
in the ope ning direc tion wi thin two secon ds.
Tone when locking -when checke d off ,/, a tone
will sound wh en yo u loc k the vehicle
1>.
Fold mirrors * -if you select On , the outside m ir­
rors w ill fold in automatically when you press t he
~ but ton on the remote cont ro l key ¢ page 47 .
Electronic immobilizer
The immobilizer prevents unauthorized use of
your v ehicle .
A microchip in the key automatically deactivates
th e e lectron ic immobilizer when the key is locat­
ed in the veh icle. If you remove the key from the
vehicle, the elec tronic im m ob ilizer act iva tes
again au tomatically .
A WARNING
Alw ay s t ake t he key w ith y ou whe never y ou
l e ave y our veh icle. The elec tron ic immo bili zer
c an be deactiv ated wit h th e key, so this c ould
make it possible fo r unauthorized persons to
start the engine an d operate veh icle systems
such as the powe r windows or sunroof. This
can increase the risk of se rious injury.
31

Driving
If you anticipate what you need to do next and
drive economically, you can easily cut your fuel
consumption by 10-15 percent. This section will
give you some tips on how you can help the envi­ ronment and your pocketbook.
(D Tips
The consumption estimates as published by ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the
road, which will 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
erate less. Let the vehicle coast whenever possi ­
ble -for example when you see that the next traf­
fic light is red.
Avoid full throttle
Driving at moderate speeds saves fuel and im­
proves your mileage.
.. Try and keep well below your car's maximum
speed .
Accelerating gently reduces fuel 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 approximately three quarters of
top speed, fuel consumption will be reduced by
one half . Never drive faster than the posted
speed limit and weather conditions permit.
66
· Reducing unnecessary idling
Even when your car is just idling it burns up fuel .
.. Shut the engine off when you are not driving
the vehicle .
.,. Do not warm up the vehicle by letting the en-
gine run at idle .
It is efficient to switch off the engine when stop­
ped at railroad crossings and long red lights.
Turning the engine off for just 30 -40 seconds
saves more fuel than is burned by starting the
engine again .
It takes a long time 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 start the engine and avoid running at high rpms while the engine is still
warming up .
@ Note
Do not leave engine idling unattended after
starting. If warning lights should come on to
indicate improper operation, they would go
unheeded. Extended idling also produces
heat, which could result in overheating or
other damage to the vehicle or other proper­
ty.
Regular maintenance
A badly tuned engine unnecessarily wastes a lot
of fuel.
.. Have your vehicle serviced at regular intervals.
By having your vehicle regularly serviced by an
Audi dealer helps to ensure that it runs properly
and economically. The condition of your vehicle
not only affects its safety and ability to hold its
value, it also affects
fuel consumption.
Check your oil each time you fill your tank.
The amount of oil used is related to engine load
and speed.
It is normal for the oil consumption of a new en­
gine to reach its lowest value after a certain mile -
age has been driven . ..,.

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Emergency braking function
In the event that the conventional brake system
fails or locks.
11-To brake your vehicle in an emergency, pull the
s wi tch (D and hold it¢
page 73, fig. 78.
11-As soon as you release the switch (Dor acceler -
ate , the brak ing stops.
Pulling and holding the switch (D while driving at
a speed of about 2 mph (3 km/h) or higher ini ­
tiates the emergency b raking function . The vehi­
cle brakes at all four whee ls by act ivat ing the
b raking hydrauli cs. The b rake perfo rmance is
sim ilar to heavy braking.¢.&
To reduce the r isk of activating the emergency
braking by mistake, an audible warning tone
(buzzer) so unds when the switch (Dis pulled.
E mergency braking stops as soon as the
switch (Dis released o r the accelerator pedal is
pressed.
A WARNING
Emergency braking should only be used in an
emergency, when the normal brake pedal has
failed or the brake pedal is obstructed. Dur ing
emergency braking, your vehicle will brake
sim ilar to heavy braking . ESC and the associ ­
ated components (ABS, ASR, EDL) cannot
overcome the laws of physics. In corners and
when road o r weathe r cond itions are bad, a
full brake application can cause the vehicle to skid or the rear end to break away, wh ich in ­
creases the risk of an accident.
Hill hold
Appl ies to: ve hicles with hill hold assist
Hill hold makes it easier to start on hills.
Requiremen t: the d river's door must be closed
and the eng ine must be r unning.
The system is act ivated when the brake pedal is
p ressed wh ile the vehicle is stat iona ry .
T o prevent the veh icle from rolling back when
starting , the brake power is held for a brief mo ­
ment afte r releasing the brake pedal. Dur ing this
time, you can eas ily beg in to move you r vehicle.
D riv ing
A WARNING
- The intelligent technology of Hill Hold can­
not overcome the limitat ions imposed by
natural phys ical laws. The increased comfort
offe red by Hi ll Hold shou ld no t cause you to
take safety risks.
- Hill Hold cannot hold the vehicle in a ll hill
start s ituations (for example, if the g round
is slippery or icy) .
- I f you do not beg in moving immediately af­
ter releasing the b rake peda l, the vehi cle
could begin to roll ba ckward under certain
circumstances . Press the bra ke pedal or set
the parking brake immediately .
- If the engine "stalls", press the brake peda l
or set the parking bra ke immed iate ly.
- Stop-and-go traffic on inclines: to help pre­
vent the vehicle from rolling back when con­
tinuing to drive, press and hold the brake
pedal for several seconds when the vehicle
is stationary.
(D Tips
You can find out if your vehicle is eq uipped
with Hill Hold by checking at an authorized
A udi dealer or authorized Audi Service Fac ili­
ty.
75

Automatic transmission
stuck by "rocking" it. The selector lever lock en­
gages if the lever stays in the N position longer
than approximately 2 seconds when the brake
pedal is not pressed .
Interlock button
The interlock button in the selector lever handle
prevents you from moving the selector lever in­
advertently while in some se lector lever posi­
tions. The positions that require the lock button
to be pressed are marked in color in the illustra­
tion
c> fig. 80.
Ignition key safety interlock*
You can only remove the key from the ignition af­
ter switching the ignition off if the selector lever
is in the P position. The selector lever wi ll be
locked in the P position as long as the key is not
in the ignition .
A WARNING
Read and follow all WARNINGS. c> A in Selec­
tor lever positions on page 76.
(D Tips
-If the se lector lever does not engage, there
i s a malfunction . The eng ine is disabled to
prevent the vehicle from driving off unin­
tentiona lly . Press the brake pedal br iefly to
al low the selector lever lock to engage
again .
-If the vehicle does not move forward or in
r everse even though a drive position is se­
lected, proceed as follows:
- >If the vehicle does not move in the desired
direction, the system may not have engaged
the drive position correctly. Press the brake
pedal and select the drive position again.
-> If the vehicle st ill does not move in the de­
sired direction, there is a system malfunc­
tion. See an authorized Audi dealer or au­
thorized Audi Service Facility for assistance
to have the system checked.
78
Driving tips
Applies to: vehicles with automatic transmissions
The transmission shifts up and down automati­
cally when in the driving gears.
Fig. 81 Sect ion of t he ce nter console: se lector lever with
interlock button
The engine will only be able start when the selec­
tor lever is in the P or N pos itions . At low temper ­
atures (below 14 °F (-10 °()), the engine can only
be started when the selector lever is in the P po­
sition.
Starting from a stop
"' Press and hold the brake pedal.
"' Press and hold the interlock button in these­
lector lever handle, select the desired selector
lever position such as D
c> page 76 and release
the lock button.
"' Wait a moment until the transmission shifts.
You will notice a slight movement when the gear engages.
"' Release the brake pedal and press the accelera­
tor pedal
c> .&. -
Stopping temporarily
"'Keep the vehicle stationary using the braking
pedal, for example at traffic lights .
"' Do not press the acce lerator pedal when doing
this.
"' To prevent the vehicle from rolling when you
start driving, set the parking brake when stop­
ping on steep incl ines
c> ,&. .
"'The parking brake will release automat ically
and the vehicle will start moving once you p ress
the acce lera tor pedal. Requirement: the driv­
er's doo r must be closed and the driver's safety
belt must be fastened . ..,.

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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 trailer, please remember that
the additiona l load will affect durability, econo­
my and performance.
T railer tow ing not only p laces more stress on the
vehicle, it a lso calls for more concentration from
the dr iver.
F or this reason, always follow the operating and
driving instructions provided and use common
sense.
Technical requirements
Trailer hitch Use a weight -carrying hitch conforming to the
gross tra iler weig ht. The h itch must be suitab le
for your vehicle and tra iler and must be mo unted
securely on the vehicle's chassis at a technically
sound
location . Use on ly a trailer hitch with a re­
movable ba ll mou nt. Always che ck wit h the t rail­
e r hitch manufac turer to make s ure that you are
usi ng the correct hitch .
Do not u se a bumper hitch .
The hitc h must be installed in such a way t hat it
does not interfere with the impact -absorbing
bumper system . No modifications should be
made to the vehicle exhaust and brake systems .
Fr om time to time, chec k that a ll hitc h mount ing
bo lts rema in securely faste ned.
When you are not towing a trailer,
remove the
tra iler hitch ba ll mount . This prevents the hitch
from ca using damage s hou ld your veh icle be
s truck from beh ind
~ ,&. .
Trailer brakes
If your trailer is equipped with a braking system,
check to be su re that it conforms to all regula­
tions .
Trailer mode
The t rai ler hydra ulic brake sys tem must not be
directly connected to the vehicle's hydra ulic
bra ke system.
Safety chains
Always use safety ch ains be tween your ve hicle
and the trailer.
Trailer lights
T ra ile r ligh ts must meet all regulations . Be sure
to chec k w it h your Aud i dea le r fo r correct wir ing,
swi tches and relays .
Mirrors
If you are unab le to see the traffic behind you us­
i ng the regular outside mir rors, then you
must in­
sta ll extended mirro rs . It i s important that you
always have clear vision to t he rear.
,8. WARNING
Afte r remov ing the tra ile r hi tch , do no t st o re
i t in yo ur vehicle. In ca se of sudden brak ing,
the hitch could fly fo rward and injure you or
your passengers .
Operating instructions
Maximum trailer we ight
A tra iler for your vehicle is lim ited to a typical
class 1 or class 2 trailer.
Trailer load distribution B e sure the load in the tra ile r i s held se curely in
pla ce to p reve nt i t from shifting forward, bac k­
ward or si deways.
Never allow a passenger to ride in a trailer~.&.
in Driving instructions on page 86.
Engine cooling system
Towing a tra iler makes the engine work harder. It
is important that the cooling system's perform ­
ance is up to the additional load . Make sure that
the coo ling syst em has enoug h flu id.
Tire pressure
When towing a trailer, inflate the tires of your
vehicle to the cold tire pressure listed under
"Full ..,.
85

Trailer mod e
load" on the la bel located on the driver's side B ­
pillar (visib le when the door is open) . Inflate
tra iler tires to trailer and tire manufacturers'
specif ications.
Lights
Check to make sure both vehicle and t railer lights
are working p roper ly.
Safety chains
Be sure t railer safety chains are properly connect­
ed from the trai le r to the hi tch on the veh icle.
L eave enough sla ck in the cha ins to permi t turn­
ing corners. When yo u install safety chains, ma ke
sure they wi ll not drag on the road when yo u are
driving .
The cha ins s hou ld cross under the trailer tongue
t o prevent it from dropping in case of separation
from the h itch .
Driving instructions
Driving with a trailer always requires extra care
and consideration .
To obtain t he best poss ible handling of vehicle
and traile r, please note the fo llow ing :
.,. Do not tow a loaded trailer when your car itself
is not loaded.
.. Be especi ally ca ref ul when pass ing othe r
vehicles.
.. Observe speed limi ts .
.. Do not d rive at the maximum permissible
speed.
.. Always apply brakes early.
.. Monitor the temperature gauge .
Weight distribution
Towing a loaded t railer w ith an empty car res ults
in a high ly unstable distribution of weight . If this
cannot be avoided, drive at very low speeds on ly
to avoid the risk of losing steering control.
A "balanced" rig is easie r to operate and cont rol.
This means that the tow vehi cle should be loaded
to the extent possible and permissible, while
keep ing the tra iler as light as possib le under the
circumstances. Whenever possible, transfer
some cargo to the l uggage compartment of the
86
tow veh icle wh ile observing tong ue load require ­
ments and vehicle loading considerations.
Speed
The higher the speed, the mo re diff icu lt i t be­
comes for the driver to con trol the r ig. Do not
drive at t he maxim um permissible speed. Reduce
you r speed even more if load, weather or wind
con dit ions are unfavorab le - partic ularly when
go ing downh ill.
Reduce vehicle speed
immediately if the trailer
shows the slightest sign of swaying.
Do not try
to stop the swaying by accelerating.
Observe speed limi ts. In some areas, s peeds fo r
vehicles towing trailers are lower than for regular
vehicles .
A lways apply bra kes early. Whe n driving down­
hill, shift in to a lower gea r to use the engine
b raki ng effect to slow the vehi cle. Use of the
brakes alone ca n cause them to over heat and fai l.
Coolant temperature
The coolant temperature gauge 9 page 12 must
be obse rved caref ully. The coolant temperature
c a n incre ase if yo u drive o n long incl ines in a low
gear a t high engine speeds . Red uce your speed
immediately if the LE Ds in the top part of the dis­
play turn on .
Fo r more info rm ation abou t indicator lights, re­
fer to .
¢ page 16 .
A WARNING
-
Anyone not prope rly restrai ned in a moving
vehicle is at a much greate r risk in an acci ­
dent. Never let anyone ride in your car who is
not properly wear ing the restraints provided
by Aud i.
Trailer mode notes
Important to know
Your vehicle handles differen tly when towing a
trailer because o f the additiona l weight and di f­
ferent weight distribution. Safety, performance
and economy will g reatly depend on how caref ul-
l y you load your trai ler and operate you r rig. ..,_

Ass is t
- Your settings are automatically stored and
assigned to the remote control key being
used .
Driver messages
Applies to: ve hicles w ith Audi side assist
If the side assist switches off automatically, a
message appears in the instrument cluster dis­
play.
(ij Audi side a ssi st : cur rentl y un ava ilable No
s en so r v isi on
The radar sensors' vision is affected. Do not cover
the area in front of the sensors with bike wheels,
stickers, dirt or other objects . Clean the area in
front of the sensors, if necessary~
page 104,
fig. 105.
@j Audi side assist : cur rently un available
Side assist cannot be switched on temporar ily be­
cause there is a malfunction (for example, the
battery charge level may be too low).
@j Audi side a ssi st : S ystem fau lt!
The system cannot guarantee that it will detect
veh icles correctly and it is switched off. The sen­
sors have been d isplaced or are faulty . Have the
system checked by an authorized Audi dealer or
author ized Audi Service Facility soon .
Audi drive select (drive
settings)
Introduction
App lies to: vehicles with Aud i drive select
Audi drive select makes it possible to experience
d ifferent types of vehicle settings in o ne veh icle .
The drive r can select from three
Comfort , Auto
and D ynam ic modes us ing the te'i:.1 button in the
center console or the MMI to switch between a
sporty and a comfortable driving mode, for ex ­
ample. In the
Ind ividu al* mode, the settings can
be adjusted to your personal preferences. This
makes it poss ible to combine settings such as a
sporty eng ine setting w ith smooth steering.
106
A WARNING ,_
Using Aud i drive select incorrectly can lead to
coll is ions, other accidents and serious inju­
ries.
Description
App lies to: vehicles with Aud i drive se lect
The vehicle setup in each mode depends on the
vehicle's features. However, the engine a nd
steering are a lways affected.
Engine and automatic tr ansmiss ion
Depending on the mode, the engine and auto­
matic transmission* respond more qu ickly or in a
more ba lanced manner to accelerator pedal
movements.
Adapt ive damper s (Audi magneti c ride )*
The adaptive dampers use sensors to record in­
format ion regarding steering movements, brak­
i ng and acceleration operations by the driver,
road surface, driving speed, and load . W ith Aud i
drive select you can adjust the adaptive dampers
spo rty (dynamic), comfortable (comfort) o r bal­
anced (auto).
Ste ering
The steering adapts in terms of steering ass is­
tance. There are d ifferent modes
~page 107.
Ind irect steering that moves easi ly as in comfort
mode is espec ially suited to long d rives on a h igh­
way. The dynamic mode provides sporty, direct
steering.
Fo r vehicles with p rogress ive steering* the steer­
i ng perfo rmance is more agile.
Corn ering light*
The cornering light adjusts when driv ing on
curves at speeds between 6 mph (10 km/h) and 68 mp h (1 10 km/h) . The pivoting act ion and the
li ght ing are also adapted to the mode.
Adapt ive cruise cont rol*
The behavior whe n accelerating can be adjusted
from comfortable to sporty, depending on the
Audi drive select mode . Adaptive cruise control ..,.

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-On steep slopes, reduce the speed and se­
lect a lower gear or lower selector lever po­
sition. Dr ive as little as possible while press­
ing the brake pedal and avoid putt ing your
left foot on the brake pedal while driving.
Th is co uld cause the brakes to overheat and
impai r the efficiency of the brakes.
- Do not let the brakes "g rind " by a lways
keeping your foot on the brake pedal. This
can cause the br akes to overhea t, i ncrease
wea r and incre ase braking dis tance unneces­
sari ly.
- Certa in wea ther an d operat ing co ndi tio ns
s u ch as dr iving through wate r, d riving in
heavy ra in or d riving after washing your ve ­
hicle can impair the effectiveness of the
brakes . In the w inte r, ice may b uild up on
the brake pads, rotors and drums. Check
these components by braking ca refu lly . Ap­
plying the brakes carefu lly severa l times
dr ies the brakes and removes ice bu ild-up .
- The effic iency of the brakes can also be im­
paired by driving for long st retches on roads
cove red w ith salt without using the b rakes .
Yo u can remove sa lt deposits from the
bra ke rotors and pads by caref ully app lying
the brakes severa l t imes .
-If the front spoiler is damaged or you ins tall
ano ther spoiler, m ake sure the front wheel
bra kes are vent ilated p roper ly. O therwise,
the b rake system could overheat, whic h re ­
duces the ir effectiveness.
- Failure of a brake circuit impai rs b raking
performance, which increases braking dis­
tance . Avoid driving the vehicle . Have it tow ­
ed to the nearest authorized Aud i dealer or
authorized Audi Service Fac ility .
- Never let the vehicle roll while the engine is
stopped because this increases the risk of an
acc ident.
- If the brake booster is not working, you will
have to press m uch ha rder on the brake
peda l to compensate for the lack o f the
booster .
0 Note
-Never let the bra kes " rub" by pressing the
pedal lightly when braking is not really nee-
Intellig ent Technology
essary . This causes the b rakes to overheat
and increases braking distance and causes
wear .
- Before driving on a long st retch with steep
slopes, reduce your speed and shift to the
next lower gear Th is makes use of the en­
gine braking effect and relieves the brakes.
If you need to brake additionally, brake in
intervals and not continuously .
(D Tips
-If the brake booster is not work ing, you
must press the brake peda l with much more
force than normal.
- If you retrof it your vehicle with a front spo il­
er, wheel covers or sim ilar items, make sure
that the air flow to the fro nt wheels is not
inter rupted . Otherwise the b rake system
can become too hot.
Electromechanical
steering
The electromechanical steering supports the
driver's steering movement s.
Power steering adapts electronically based on
the ve hicle speed .
T he veh icle st ill has f ull s teer ing f unct iona lity if
t h e power steering fails or when the engine is
stopped (towing) . To steer, you must app ly m uch
more force than usual.
Indicator lights and messages
• Do not driv e vehicle : steering defective
If this indicator light turns on and stays on and
t hi s message appears , the power steering may
have failed .
Do
not continue dr iv ing . See an author ized Audi
dealer or authorized A udi Se rvice Fac ility for as ­
s istance .
• Do not dr ive vehicle: steering defecti ve
There is a ma lfunction in the e lectronic steering
l ock. You cannot turn the ignition on. ..,.
119