2015 AUDI A3 CABRIOLET power steering

....,
N
r--. > co
rl I.O
"' rl
"' rl
Stee ring re comm endat ion
The ESC helps to stabilize the vehicle by
changing the steering torque.
Selective wheel torqu e control
Select ive wheel torque control is used when
driving on curves . The front wheel on the in­
side of the curve or both wheels on the inside
of the curve are braked selective ly as needed.
This a llows more precise driving in curves.
Automatic post -collisi on brakin g system
The "Automatic post-collision braking system "
can help to reduce the risk of slidi ng and of
other coll is ions afte r an accident. I f the airbag
con tro l modu le detects a collision above ace r­
tain vehicle speed, the vehicle is braked by the
ESC.
The vehicle does not brake automatically if:
- the driver presses the accelerator pedal, or
- the braking force generated by the pressed
brake pedal is greater than the braking force
that would be initiated by the system, or
- the ESC, the brake system or the vehicle
electrical system are not functioning.
A WARNING
-The ESC and its integrated systems can­
not overcome the limits posed by natura l
physical laws. This is especially impor ­
tant on s lippery or wet roads. If the sys-
Switching on/off
Sm art Te chnol og y 189
terns beg in acting to stabilize your vehi­
cle, you should immediately alter your
speed to match the road and traffic con­
ditions . Do not let the increased safety
provided tempt you into taking r isks .
This could increase your risk of a co lli­
SIOn.
- Please note the r isk of a coll is ion increas­
es when driving fast, especially through
curves and on slippery or wet roads, and
when dr iv ing too close to objects ahead.
The ESC and its integrated systems can ­
not a lways prevent collisions -there is
still a risk of accidents!
- Press the accelerator pedal caref ully
when acce lerating on even, slippery sur­
faces such as ice and snow. The drive
wheels can spin even when these control systems are installed and this can affect
driving stability and increase the r isk of a
coll is ion.
@ Tips
-ABS and ASR only function correctly
when all four wheels are equipped w ith
identical tires. Different t ire sizes can
lead to a reduct ion in engine power.
- You may hear noises when the systems
descr ibed are working.
- If the
Bl or [I] indicator light appears,
there may be a malfunction
¢ page 21.
ESC turns on automatically when you start the engine .
gi
Fig. 159 Upper c ente r conso le: ESC button
The ESC is designed to funct ion in levels . De­
pend ing on the level that is selected, the sta­
bilization funct ion of the ESC is lim ited or
swi tched off . The amoun t of stabilization con­
trol wi ll differ depending on the level.
In the follow ing unusual situations it may
make sense to switch the ESC sport mode on
to allow the wheels to sp in:
- Rocking the vehicle to free it when it is stuck
- Driving in deep snow or on loose ground
IJJ-

192 Smart Technology
the brakes. If you need to brake addition­
ally, brake in intervals and not continu­
ously.
(D Tips
- If the brake booster is not working, you
must press the brake pedal with much
more force then norma l.
- If you retrofit your vehicle with a front
spoiler, wheel covers or similar items,
make sure that the air flow to the front
wheels is not interrupted. Otherwise the
brake system can become too hot.
Electromechanical
steering
The electromechanical steering supports the
driver's steering movements .
Power steering adapts electronically based on
the vehicle speed.
The vehicle still has full steering functionality if the power steering fai ls or when the engine
is stopped (towing). To steer, you must apply
much more force than usual.
Indicator lights and messages
• Do not drive vehicle: steering defective
If this indicator light turns on and stays on
and this message appears, the power steering may have failed.
Do
not continue driving. See an authorized
Audi dea ler or authorized Audi Service Facility
for assistance.
• Do not drive vehicle: steering defective
There is a malfunct ion in the electron ic steer­
ing lock. You cannot turn the ign ition on.
Do
not tow your vehicle because it cannot be
steered. See an authorized Aud i dealer or au­
thor ized Audi Serv ice Facility for ass istance.
'I j Steering malfunction: you can continue
driving
If the indicator light turns on, the steering
wheel may be more difficult to move or more sensitive than usual.
The stee ring wheel may
also be at an angle when driving straight.
Drive slowly to your authorized Audi dealer or
qualified wo rkshop to have the malf u nct ion
corrected.
II Steering lock : system fault! Please con­
tact Service
There is a malfunction in the electronic steer­
ing lock .
Drive to an authorized Audi dealer or author­
ized Audi Service Facility immediately to have
the malfunction corrected.
A WARNING ,___
Have the system malfunction corrected as
soon as possible by an authorized Aud i
dealer or authorized Audi Service Facility,
as this increases the risk o f an accident.
@ Tips
If the . or ,~ n ind icator light only stays
on for a short tim e, you may continue dr iv­
in g.
All wheel drive
(quattro)
Applies to vehicles: with all wheel drive
In all wheel drive, all four wheels are pow­
ered.
General information
In all whee l drive, the driving power is divided
between a ll four wheels . This happens auto­
matically depending on your driving behavior
as well as the current road conditions. Refer
to
¢ page 188, Electronic stabilization con­
trol (£SC) .
The all wheel drive concept is designed for
high engine power. Your vehicle is exception­
ally powerful and has excellent driving charac­
teristics both under normal driving cond itions
and on snow and ice . Always read and follow
safety p recaut ions
Q ,& . .,.

230 Tires and wheels
-If you notice unusual vibra­
tion or if the vehicle pulls to
one side when driving, al­
ways stop as soon as it is
safe to do so and check the
wheels and tires for dam­
age.
0 Note
-Please note that summer and winter tires are de­
signed for the conditions
that are typical in those sea­
sons. Audi recommends us­
ing winter tires during the
winter months. Low tem­ peratures significantly de­
crease the elasticity of
summer tires, which affects
traction and braking ability. If summer tires are used
in
very cold temperatures, cracks can form on the tread
bars, resulting in perma­
nent tire damage that can
cause loud driving noise and
unbalanced tires. Audi is not
responsible for this type of
damage.
-Burnished, polished or chromed rims must not be used in winter road condi­
tions. The surface of the
rims does not have suffi­
cient corrosion protection
for this and could be perma­
nently damaged by road salt
or similar substances.
Glossary of tire and loading terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto­ matic transmission, power
steering, power brakes, power
windows, power seats, radio, and heater, to the extent that
these items are available as fac­
tory-installed equipment (whether installed or not).
Aspect ratio
means the ratio of the height to
the width of the tire in percent.
Numbers of 55 or lower indi­
cate a low sidewall for im­
proved steering response and
better overall handling on dry
pavement.
...

2 70 Fuses and bulbs
Interior fuse assignment
No. Equipment Ampere
Fl 3 Adaptive dampers contro
l
20
module
Fl4 Climate
control system
30
blower
Fl S E
lectronic steering column
10
lock
Fl6 MM I area 7.5
Fl7 Instrument cluster 5
Fl8 Rearview camera
7.5
F l9 Convince key
system control
7.5
module, tank system
F20 Tank system
7.5
F23 E
xterior lighti ng, heated
40
washe r fl ui d nozzles
Panorama sunroof/ power
F24 top control module, power 20/30
Fig. 192 Vehicle inter ior : fuse assignment top latch (Cabriolet)
No. Equipment Ampere
F25 Door/dr
iver's side doors (for
30
example power windows)
Fl Engine components 30 F26 Seat heat
ing 30
F2 Seat adjustment 10 F27
Sound-amplif
ier
30
F3 Hydraulic pump
cover (Cab-
40
riolet) F28
Power top control module,
5
elect ro ni cs (Cabr io let)
F4 M
M co ntrols, M MI-compo-
7.5
nents F29
Inte
rior lights
7.5
F3 1 E xterior lighting
40
F5 Gateway
5
F32 Driver ass istance systems 7.5
F 6 Anti-theft a
larm system
s F33 Airbag 5
Climate/heating control, se-
Button illumination, coils
lector lever (automatic
for upper cab in heating relay
F7 transmission), park ing heat- 10
er, rear window heater re lay F34 (Cabriolet) and socket relay,
7.5
in ter ior sound, back-up light
coil switch, temperature sensor,
Diagnosis, electrical parking oil level sensor
F 8 brake
switch, light switch,
10
rain/ light sensor, interior
light ing Diagnosis, headlight range
F35 co
ntrol system, a ir quality
10
sensor, a utomat ic dimming
F9 Steering column
switch
1
module
Fl0 D isp lay 5 rearview mir
ror
F36 Right
corner ing light/ right
15
LED-headlight
Fll Reversible driver's
side safe-
25
ty belt tensioners F37
Left corner
ing light/ left
15
L E D- headlight
Fl 2 M MI area 15/20

290 Index
E
ECO mode (automatic climate control sys -
tem) . ..... .. ................ ..... ..
72
Efficiency program . . . . . . . . . . . . . . . . . . . 28
Description .............. .... .. .. .. 28
Fu el economy messages . . . . . . . . . . . . . 29
Other equipment . . . . . . . . . . . . . . . . . . . 29
Electrical accessor ies
refer to Socket . . . . . . . . . . . . . . . . . . . . . 64
Electromechanical parking brake
refer to Parking brake ......... .... .. 82
Electromechanical steering ....... ... . 192
Indicator lights ................... 192
Electronic diffe rent ial loc k ... .. .. .. .. . 188
Indicator light . . . . . . . . . . . . . . . . . . . . . 21
Electronic immobilizer ...... .... .... .. 36
also refer to Immobilizer . . . . . . . . . . . . 31
Electronic speed limiter . . . . . . . . . . . . . . . 30
Electronic stabilization control (ESC)
I ndicator light . . . . . . . . . . . . . . . . . . . . .
21
Sport mode ................ ..... . 189
Electronic Stabilization Control (ESC) . . . 188
Emergency assistance ....... ... .... . 261
Emergency flasher . . . . . . . . . . . . . . . . . . . 50
Emergency flashers
Indicator light . . . . . . . . . . . . . . . . . . . . .
25
Emergency operation
Emergency braking function .... .... ..
84
Front passenger's door ...... .. .. .. . . 37
Luggage compartment lid .. .... .... . 261
Power top . . . . . . . . . . . . . . . . . . . . . . . . . 45
·th ' k
w1 convenience ey . . . . . . . . . . . . . . . . 80
Emergency release
Fuel filler door ........... .........
213
Selector lever . . . . . . . . . . . . . . . . . . . . . 117
Emergency starting ......... ... .... . 273
Emergency towing ... .. .... .. .. .. .. . 275
Energy management ....... .. .. .. .. . 193
Indicator light . . . . . . . . . . . . . . . . . . . . . 20
Engine
Coolant
.. .. ................ ..... . 220
Starting with jumper cables . ..... .. . 273
starting (button) ............. .... .. 78
Starting (driver messages with conven-
ience key) .. ........ ..... .. ........
81
start ing (key) . .. ...... .... ... .. .. .. 76
stopping (button) ............. ..... 79
stopping (key) ... ................ .. 78
Engine compartment
Closing the hood .............. .. ..
216
Open ing the hood ................. 215
Overview . ..... .. ................ . 216
Safety precautions ............. .... 214
Engine control (indicator light) ...... .. . 22
Engine coolant .. .. ............. .... 220
Radiator fan ... .. ... .......... .... 221
Engine oil . ..... .. ................ . 217
adding ....... .. ................ . 218
Changing ........................ 219
Checking the oil level ............... 218
Dipstick. .. .. .. .. ............ 216, 218
Indicator light . .. ... ......... ... .. . 20
Oil consumption .. ..... ..... ... .. .. 217
Specification and viscosity ... .. .. .. .. 217
Use ...... .... ................... 218
Engine speed limitation (indicator light) . 23
Environment
Break-in period . . . . . . . . . . . . . . . . . . . .
196
Catalytic converter ............. .. .. 197
Disposing of your vehicle battery . .. .. 226
Driving at high speeds ............ .. 198
Driving to minimize pollution and noise 198
Fuel economy . ... ....... ...... .. .. 198
Letting the vehicle stand and warm up. 199
Proper disposal of drained brake fluid . 222
Proper disposal of drained eng ine oil .. 219
Unleaded fuel .... ................ . 210
What should I do with an o ld battery? . 226
EPC (engine contro l) . . . . . . . . . . . . . . . . . . 22
ESC
Automatic post-collision braking sys-
tem .. ... ... .. .. .. ...... ....... ..
189
Electronic stabilizat ion control . .. .. .. 188
Sport mode . .. .. ... ....... ... .. .. 189
Event Data Recorder (EDR) . . . . . . . . . . . . 194
Exterior lighting . .. ... .......... ..... 49
Exterior m irrors
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . .
55
D. . 1mming .. .. ...... .. ... ... ... ..... 56
folding ... ................... ..... 55
Heating . .. ................... .... . 55