steering wheel AUDI A4 SEDAN 2013 Owner's Manual

188 Intelligent technology
200 kilometers) of normal city driving.
You can compensate for this by pressing
the brake pedal more firmly. This also applies later when new pads are instal­
led .
- You should perform braking maneuvers
for the purpose of cleaning the brake
system only if road conditions permit.
Other road users must not be put at risk -
you may cause an acc ident!
- Before descending a steep grade, reduce
speed and shift transmission into a lower
gear or lowe r driving range. Do not ride
the brakes or hold the pedal down too
long or too often. This could cause the
brakes to get hot and diminish braking
efficiency.
- Do not "ride the brakes" by resting your
foot on the pedal when you do not intend
to brake . This may cause the brakes to
overheat, premature wear and increased
stopping distance.
- Under certain climatic and operating
conditions such as passing through wa­
ter, driving in heavy rain or after washing
the vehicle, the effectiveness of the
brakes can be reduced. In winter, ice can
accumulate on the brake pads, linings,
discs and drums. Carefully apply brakes
for a test. Brakes will dry and ice coat­
ings will be cleaned off after a few care­
ful brake applications.
- Driving for an extended period of time on
salt-covered roads without using your
brakes can also affect braking efficiency.
Clean off accumulated salt coating from
brake discs and pads with a few careful
brake applications.
- If you damage the front spoiler, or if you
install a different spoiler, be sure the air
flow to the front brakes is not obstruct­
ed . Otherwise the brake system could
overheat reducing the effectiveness of
the entire brake system.
- Failure of one brake c ircuit will impair
the braking capability resulting in an in­
creased stopping distance. Avoid driv ing
the vehicle and have it towed to the near- est authorized Audi dealer or
qualified
workshop.
- Never let the vehicle roll to a stop with
the engine shut off.
- If the brake booster is not working, for
example when towing your vehicle, or
because the brake booster has somehow
been damaged, the brake pedal must be
pressed considerably harder to make up
for the lack of booster assistance.
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 messages
• Steering defective! Do not drive vehicle!
If this indicator light turns on and stays on
and this message appears, the power steering
may have failed.
Do
not continue driving . See your authorized
Audi dealer or other qualified repair facility
for assistance.
E!"4 Dynamic steering: System fault! You can
continue driving
If the indicator light turns on and the mes­
sage appears, the steering may be more diffi­
cult to move or more sensitive than usual. The
steering wheel may also be at an angle when
driving straight .
Drive slowly to your authorized Audi dealer or
qualified workshop to have the malfunction
corrected .
ls!'fl Dynamic steering: initializing
If this driver message appears and the indica­
tor light is flashing on the instrument panel,
dynamic steering* is being reinitialized. Once
you start the engine after this is finished, the ..,..

steering wheel wi ll be easy to move . Re­
initialization might be necessary if the steer ­
ing wheel was moved hard to the left and
right while the vehicle was not moving. The
d isplay goes out as soon as in itializat ion is
comp lete .
A WARNING
Have the dynamic steering* system mal­
function repaired as soon as poss ible by an
authori zed A udi dealer or any qualified
workshop -risk of accident!
@ Tips
- If the . or 1;r,ij indicator light only stays
on for a short t ime, you may continue
driving.
- The dynamic steering * stability systems
are not available in t he event of a system
malfunction.
- Fo r additional informat ion on dynamic
stee ring*, re fer to
c::> page 111.
Driving with your
quattro ®
Applies to vehicles: with all-wheel drive
With oil-wheel drive, oil four wheels ore driv­
en.
General information
W ith all -whee l dr ive, power is dis tributed to
a ll fo ur wheels. This happens automatica lly
depending on yo ur driving sty le and the road
conditions at the time. See also
c::> page 184 .
A center different ial d is tributes the dr iv ing
power var iably to the front and rear axle. It
wo rks together with se lective whee l to rque
contro l, which activates when driving throug h
curves
c::> page 185. With the sport d ifferen­
tial*, power distribution to the rear w heels is
variable and can be adjusted with Audi drive se lect
c::> page 111 .
The all-wheel drive concept is designed for
hi gh engine power. Your vehicle is exception­
ally powerful and has exce llent dr iving charac ­
ter ist ics both under normal d riving conditions
Int ellig ent technolog y 189
and on snow and ice . Always read and follow
safety precautions
c::> & .
Winter tires
When dr iving in t he winter, yo ur vehicle wi th
a ll -wheel drive h as an adv ant age, even w it h
regular tires. In wi nter road conditions it may
be advisable to mount winter tires (or all -sea ­
son tires) for improved driveability and brak­
ing : these tires must be mounted on
all fou r
wheels .
See also c::> page 245, Winter tires.
Tire chains
Where tire chains a re mandatory on certain
roads, this no rma lly also app lies to veh icles
with all-wheel drive
c::> page 246 , Snow
chains .
Replacing wheels /tires
Vehicles wi th a ll-wheel drive must alw ays
have tires of the same s ize. A lso avoid tires
with different tread depths . For detai ls see
page
c::> page 241, New tires and replacing
tires and wheels.
Off-Road driving?
Your A udi does no t have enough g ro und cle ar­
ance to be used as an off -road vehi cle. It is
therefore best to avoi d rough tracks and un­
even te rrain as much as possib le . Also refer to
c::> page 192.
A WARNING
A lways ad just yo ur dr iv ing to road and traf­
fic conditions. Do not let the extra safety
afforded by all-wheel drive tempt you into
taking extra risks .
-Al tho ugh t he all-wheel driv e is ve ry ef­
fective, always remember that braking
capacity is lim ited by tire t raction. You
should t herefore not d rive a t excessive
speeds on i cy or slippery ro ad s urfa ces.
- On wet road surfa ces, be careful not to
d rive too fast bec ause the fron t whee ls
co uld begin to slide on top of the water
(aquaplani ng) . If th is should occur, yo u •
•

198 Trailer towing
Trailer towing tips
Important to know
Your vehicle hand les different ly when tow ing
a trailer because of the addit ional weight and
different weight distribution . Safety, perform­
ance and economy wi ll greatly depend on how
carefully you load your trailer and operate
your rig.
Before you actually tow your trailer, practice
turning, stopp ing and backing up in an area
away from traffic. Keep practicing until you have become completely familiar with the way
your veh icle-trailer combination behaves and
responds.
Backing up is difficult and requires practice.
Backing up with a trai ler generally requires
steering action opposite to that when backing
up your vehicle without a trailer.
Maintain a greater distance between your ve­
hicle and the one in front of you. You will need
more room to stop. To compensate for the
trailer, you will need a larger than normal
turning radius .
When passing, remember that you cannot ac­
celerate as fast as you normally would be­
cause of the added load. Make sure you have
enough room to pass . After passing, allow
plenty of room for your tra iler before chang­
in g lanes again.
Avoid jerky starts, sharp turns or rapid lane
changes.
(D Tips
- Do not tow a tra iler dur ing the break-in
period of your vehicle.
- If you tow a trailer, your Audi may re­
quire more frequent maintenance due to
the extra load
q page 2 72.
Parking on a slope
Do not park on a slope with a trailer . If it can­
not be avoided, do so only after doing the fol­ lowing :
When parking:
.. App ly the foot brake.
.. Have someone place chocks under both the
vehicle and the trailer wheels .
.,. With chocks in place, slowly release the
brakes until the wheel chocks absorb the
load.
.. Tur n the wheels towards the curb.
.. App ly the parking b rake.
.. Place an automatic transmission* in P, re­
spectively a manual transmission in first or reverse gear.
When restarting after parking:
.. App ly the foot brake .
.. Start the engine.
.. Move the se lector lever to D/S, respectively
a manual transmission in first gear.
.. Release the parking brake and slow ly pu ll
out and away from the wheel chocks.
.. Stop and have someone retr ieve the wheel
chocks .
(D Tips
If you move the selector lever of the auto­
matic transmission* to P before applying
the parking brake and before blocking the
whee ls, you may have to use more force
lat er to move the lever out of the P posi­
tion.

-Never mount used tires on yo ur vehicle if
you are not sure of their "previous histo­
ry." Old used tires may have bee n dam­
aged even though the damage cannot be
seen that can lead to sudden tire failure
and loss of vehicle control.
Glossary of tire and loading terminology
Accessory weight
means the comb ined weight (in excess of
those standard items wh ich may be rep laced)
of automati c transmission, power steering,
power br akes, power wi ndows, power sea ts,
radio, and heater, to the ex tent that these
items are avai lab le as factory -installed equip­
ment (whether installed or not).
Aspect ratio
means the ratio of the height to the w idt h of
the tire in percent. Numbers of 55 or lower in ­
d icate a low sidewall fo r improved s teer ing re­
sponse and better overall handling on dry
pavement.
Bead
means the pa rt of the t ire that is made of
s teel wires, wrapped or re inforced by ply cor ds
and that is shaped to fit the r im.
Bead separation
means a b reakdown of the bond between
components in the bead.
Cord
means the strands forming the plies in the
tire.
Cold t ir e infl ation pr essure
means the tire pressure recommended by the
vehicle manufacturer for a t ire of a designated
size that has not been dr iven for more than a
couple of miles (kilometers) at low speeds in
the three hour period before the tire pressure i s measu red or adjusted.
Tire s an d wheel s 231
-If you notice un usua l vibration or if the
veh icle pulls to one side when driv ing, a l­
ways stop as soon as it is safe to do so and check the wheels and tires for dam­
age.
Curb weight
mea ns the weight of a motor ve hicle w ith
standard equipment includ ing t he maximum
capa city of fuel, o il, and coolant, ai r cond i­
tion ing a nd addi tional weig ht o f optiona l
equipment .
Extra load tire
means a tire design to operate at higher loads
and at higher inflation pressures than the cor­
respondi ng s tanda rd tire. Extra load tires may
be identified as "X L", "xl", "EXTRA LOAD", o r
"R F" on the sidewall .
Gross Axle Weight Rating ( "GAWR ")
mea ns the load-carrying capacity of a single
axle system, measured at the tire-ground in­
te rfaces.
Gross Vehicle Weight Rating ( "GVWR ")
means the maximum total loaded we ight of
t h e ve hicle.
Groo ve
means the space between two adjacent tread
ribs.
Load rating (code )
means the maximum load tha t a t ire is rated
to carry for a given inflation pressure. Yo u
may not find this information on all tires be­
ca use it is not required by law.
Maximum load rating
me ans the load r ating for a tire at the maxi­
mum pe rm issi ble inflat ion pressure for that
ti re .
•
•
...

240 Tires and wheels
Tire service life
The service life of tires depends on a lot of
different things including proper installation
and balancing, correct tire pressure and driv­
ing style.
F ig. 176 Tire tread: tre ad wea r ind icators (TWI)
_____ __,.J)
F ig. 1 77 Rotat ing t ires for more ev en wea r
Tread Wear Indicator (TWI)
The o rigi na l t ires on your veh icle have
1/16 inch (1.6 mm) high "wear indicators"
c::> fig . 176 running across the tread. Depend ­
i ng on the make, there will be six to eight of
them evenly p laced around the t ire. Marks on
the tire sidewa ll (for example "TWI" or other
symbols) indicate the positions of the tread
wear ind icators . Worn t ires must be replaced .
Different fig ures may apply in o ther countries
c::> & .
Tire p ressure
Incorrect tire pressure causes premature wear
a nd can cause sudden t ire blow-out. For th is
reason, tire pressure must be checked at least
once a month
c::> page 236.
Driving style
Driving fast aro und curves, heavy acce leration
and hard braking increase tire wear.
Rotating tires for more even wear
F or all four tires on your ve hicl e to h ave the
same service life, we recommen d that t he
front and rear t ires are rotated according to
the tire manufact urer's suggested tire rota­
tion intervals. Please remember the follow­ ing :
- Tire rotation intervals may differ from the
vehicle service inte rva ls o utlined in your
Ma intenance and Warranty Book let .
- The longer one tire is used in one location
on the vehicle, the more it wears at certain
points; therefore, we recommend that you
follow the tire manufact urer's suggested
tire rotation intervals .
- Vehi cles w ith front-wheel dr ive experience
more tread wear on the fro nt w heels com­
pa red to all wheel d rive (quattro ®).
- Please rotate tires as shown
c::> fig. 177.
-Extra care must be taken when rotating di-
rection-specific tires
c::> page 2 5 7 .
Wheel balancing
The wheels on new ve hicles are balanced .
However, various situations during everyday
driving can cause them to become unba l­
anced, re sulting in vibrat ions you can usually
feel through the steer ing wheel.
Un balanced whee ls must be rebalanced to
avoid excessive wear on steering, suspension
and t ires. A whee l m ust also be reba lanced
when a new tire is insta lled.
Incorrect wheel alignment
Incor rect wheel alig nment can cause exces ­
sive tire wear, impairing the safety of the veh i­
cle . If tires show excessive wear, have the
whee l alignment checked by an aut hori zed
Audi dealer or qualif ied workshop .
All wheel drive
Vehicles with q uattro ® mus t always have tires
of the same size, construction and tread type .
For details see
c::> page 189. ..,.

A
Accessories . . . . . . . . . . . . . . . . . . . . 60, 274
AC (automatic climate control) ... .. .. .. 69
adaptive cruise control Vehicles with manual transmission 99
Adaptive cruise control ...... .. .. .. .. .. 97
C leaning sensors/camera ... ... .. .. . 201
Messages .. ................ ... ... 105
Request for driver intervention . . . . . . . 103
Setting the driving program .. .. .. .. . 102
Adaptive dampers .......... .. .. .. .. . 111
Adaptive light ................ ... ... . 44
Adaptive Light (defective) ......... .. .. 22
Adding Engine coolant ........... .. .. .. .. .
Engine oil .. ................ ... .. .
Windshield washer fluid ......... .. .
Additional accessories
Additives 223
220
229
274
Engine oil .. ............. .... .. .. . 220
Adjustable steering column ... ... .. .. .. 72
Adjusting Air distribution (automatic climate con-
trol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
I nstrument illumination ... .. .. .. .. .. 47
Steering column .................... 72
Temperature (automatic climate control) 70
Airbag Warning/indicator lights ... .. .. .. .. .. 20
Airbag system . . . . . . . . . . . . . . . . . 144 , 161
Advanced Airbag System ....... ... .. 148
Advanced Airbag System components . 151
Care . .. ... . .... ... ..... ..... .. ... 157
Children . .. ............. .... .. .. . 166
Child restraints ........... .. .. .. ... 167
Components (front airbags) . . . . . . . . . 151
Danger of fitting a child safety seat on
the front passenger seat . . . . . . . . . . . . 145
Disposal . .. .. ........... .. .. .. ... 157
Front airbags . . . . . . . . . . . . . . . . 148, 149
How do the front airbags work? . . . . . . 153
How many airbags does my vehicle
have? 151
How the Advanced Airbag System com-
ponents work together .... .. .. .. .. . 152
Important things to know .. .. .. .. .. . 144
Index 277
Indicator light ..... ............... 155
Monitoring . ... .... ............... 155
PASSENGER AIR BAG OFF light ....... 155
Repairs ... .. .. .. ................. 157
Safety instructions ................. 157
Side airbags ..... .. ............... 159
Side curtain airbags .. .... .. .... .... 162
Weight-sensing mat ............... 166
When must the system be inspected? . 155
all-wheel drive .. .. ................. 189
Alloy wheels .. .... .. ............... 204
All wheel drive Winter tires . .. .. .... ........... .. 245
Anti-free ze
refer to Engine coolant system ... .. .. 222
Anti-lock braking system ............ . 184
Warning/indicator lights ............ . 19
Anti-slip regulation ................. 184
Anti-theft alarm warning system ... .. .. . 32
Anti-theft systems Electronic immobilizer ............... 38
Armrest .. .. .. .. .. .. . ... ...... ... .. . 56
Ashtray ...... .. .. .................. 59
Asterisk What does it mean when something is
marked with an asterisk? . . . . . . . . . . . . . . 6
Audi braking guard
refer to braking guard . ........... .. . 97
Audi drive select . . . . . . . . . . . . . . . . . . . . 111
Adaptive dampers .. .............. . 111
Description . . . . . . . . . . . . . . . . . . . . . . . 111
Dynamic steering . .... ......... .. .. 111
Setting the driving mode ........ .. .. 112
Sport differential . .... ............. 111
Audi Service Repair Manuals and Litera-
ture 272
AU TO
Automatic climate control . . . . . . . . . . . . 70
Automatic headlights . ...... ... .. .. . 44
Auto Lock ... ... .... ................ 32
Automatic belt retractor ............. 139
Automatic car wash
refer to Washing . .. ........... .... 200
Automatic climate control Air vents . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 69
Setup ........ .. .. . ............... 71
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-----------------------------~I~ n~d~ e~x 285
Parking system (rear, with rea r view cam ­
era) Park ing mode 1 ......... ... .. .. .. . 1 18
Park ing mode 2 .......... .... .. ... 119
Safety precautions ........ .. .. .. .. . 116
Sw itching on/off .............. .... 117
Sw itching rear view camera on/off ... . 120
Parts rep lacement . ..... ... .. .. .. .. . 274
P ass-t hrough . . . . . . . . . . . . . . . . . . . . . . . . 66
PASSENGER AIR BAG OFF light . . . . . . . . 155
P assive safety system .... ... .. .. .. .. . 126
P eda ls .. .. ... ...... ............. .. 13 1
Phys ica l pr inc iples of a frontal coll is ion . 137
P olishing .. .. ............. .. .. .. .. . 20 1
Pollutant filter (automatic AC system) . .. 68
Powe r
seat adjustment . . . . . . . . . . . . . . . . . . . . 56
P ower locking sys tem ....... .. .. .. .. .. 3 2
E mergency locking . . . . . . . . . . . . . . . . . . 3 7
Power windows ... .... ... .. .. .. .... 41
Rear lid .... .... .. .... ... .. .. .. .... 39
Selective unlock feat ure ... .. .. .. .. .. 37
Sett ings . .. ............. .... .. .... 37
Sliding/tilting sunroof ..... .. .. .. .. .. 41
P owe r steering
refer to Electro-mechanical power as­
sist
. .. ... . .... ............. .. .. .
Powe r window 188
Conven ien ce opening/ closing . .. .. .. .. 41
Powe r windows ......... ...... .... ... 40
C hi ld safety locks ............ .... ... 40
M alf unct io ns ............ .... .. .. .. 42
Pregnant women Special cons iderations when weari ng a
safety belt . . . . . . . . . . . . . . . . . . . . . . . 141
Proper occupa nt seating positions .. .. . 127
P rope r safe ty belt pos it ion ... .. .. .. .. . 14 0
Proper seat ing pos ition
Front passenger . ............. ... .. 128
Occupa nts ..... ........... ... ... .. 127
Rear passengers ............... .... 129
Q
Quartz clock ............... ... ... ... 12
quattro ®
refer to all-whee l dr ive
189 Question
What happens to unbe lted occupants? 137
Why safety belts? . . . . . . . . . . . . . . . . . 136
R
Radiator fan 224
Rain/ light sensor
H ead ligh ts .. .. .. ................. . 44
Inte rmit ten t (w indshie ld w ipers) . .. .. . SO
Senso r defec tive . . . . . . . . . . . . . . . . . . . . 22
Read ing lights . .. .... ... ....... ...... 47
Rear door su n shade . .. ... .... ... .. .. . 49
Rea r fog lights .. .. ................. . 44
Rear lid
Emergency re lease .. .............. .. 39
E scape handle ... .. . .. .. .. ... ... .. . 40
Open ing and closing ... ..... ... .... . 39
Rear light
Defective . . . . . . . . . . . . . . . . . . . . . . . . . 21
Rea r view came ra
118
119
Pa
rking mode 1
Parking mode 2
Rea r view m irror
· · · · · .. ......... .. .. . 48
Rear window heat ing 70
Rear window sun shade .. ..... ... .. .. . 49
Recircu lation mode (automat ic cl imat e
control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Refuel ling .. .. .. .. ................. 212
Re lease lever for hood
Remote control 215
Homel in k ... .. .. ................. 121
Remote contro l key. . . . . . . . . . . . . . . . . . . 33
Pe rsonalizing .. .. .. . .. .. ..... ... .. . 33
unlocking/locking .. .............. .. 35
Remote rear lid re lease .. ..... ... .. .. . 39
Repair ma nuals .. .. ... ............ .. 272
Repairs Airbag system ... .. . .. .. .. ... ... .. 157
Rep lacement key .... . .. ..... ... .. .. . 33
Rep lac ing
Windsh ie ld wiper b lades ........ ..... 51
Rep lacing bu lbs . .. ................. 261
Rep lacing tires and wheels ..... ... .. . .
Repo rting Saf ety Defects ............ .
Reset button
. ... .. .. . ...............
Retr actor ... .. .. .. .. .. ........... ..
242
134
12
139
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