2013 AUDI A5 CABRIOLET wheel torque

180 Intelligent technology
ESC includes and/or works together with the
anti-lock brake system (ABS), brake assist sys ­
tem, anti-slip regulation (ASR) , e lectronic dif­
ferential lock (EDL), dynamic steering" and
e lectronic interaxle differentia l lock* /selective
wheel torque control* . ESC is switched on all
the t ime. I n certa in s ituations whe n you need
l ess t raction, you can switch off ASR by p ress­
i ng the bu tto n
[ru ¢ fig. 167 or ¢ fig. 168. Be
sure to sw itch ASR on ag ain when you no lon­
ger need less trac tion.
Anti -lock braking system (ABS)
ABS prevents t he wheels from locking up
when braking. The veh icle can still be st eered
even d uring ha rd b rak ing . Apply steady p res­
sure to the br ake pedal. Do no t pu mp the ped­
a l. A puls ing in t he bra ke peda l ind icates that
the system is he lping yo u to b rake the vehicle .
Brake assist system
The brake assist system can decrease bra king
d ista nce. It increases braking powe r w hen the
d river p resses the brake pedal quickl y in eme r­
gency situa tions . You mus t press and ho ld the
brake peda l until the situation is over. In
ve hicles with adaptive cruise contro l", the
brake assist system is more sensit ive if the
d ista nce detected to t he vehicle a head is too
smal l.
Anti-slip regulation (ASR)
ASR reduces engi ne power when the drive
wheels begin to spin and adapts the fo rce to
the road condit ions. This makes it easier to
start, accelerate and drive up hills.
Electronic diffe rential lock (EDL )
The EDL brakes wheels that are spinning and
tra nsfers t he d rive powe r to the other d rive
wheel or whee ls if the vehicle is equipped with
all-wheel drive*. This function is available up
to about 60 mph (100 km/h).
In extreme cases, EDL a utomatica lly switches
off to help keep the bra ke on the braked whee l
from overheating. EDL will switch on aga in au­
tomatically when conditions have returned to
normal.
Dynamic steering*
On vehicles wi th dynam ic s teering *, ESC he lps
sta bilize the steer ing in crit ica l sit uat ions.
Electronic interaxle differential lock*/
selective wheel torque control*
T he ele ctroni c in te raxle di fferentia l lock ( fron t
whee l drive) o r th e se lective whee l torque
control (all -whee l drive) operates when driv­
ing t hro ugh cu rves. The front wheel on the in­
s ide of the c urve or both whee ls on the inside
of the curve are braked selectively as needed .
Th is mi nimizes sliding in the front wheels and
allows for more precise d rivi ng through
cu rves . The a ppl icable syste m may not acti­
vate when dr iv ing in wet o r snowy cond itions.
_&. WARNING
- E SC, A BS, ASR, ED L d ynam ic steering *
a nd the elect roni c in ter ax le d ifferenti al
loc k* /se lective whee l torque control *
cannot ove rcome the laws of physics .
This is especia lly important on slippery
or wet r oads. If the systems beg in acting
to stabilize your veh icle, yo u should im­
mediately change you r speed to match
the road and t raff ic conditions. Do not
let the increased safety prov ided by
t hese systems temp t you to ta ke r is ks.
Doing so will increase the risk of a lo ss of
veh icle cont ro l, col lision an d ser io us per­
sonal injur ies.
- Always adapt your speed to ro ad, traff ic
an d wea ther conditions . The risk of los ­
ing contro l of t he vehicle increases when
driving too fast, es pec ially through
curves and on slippery or wet roads, and
when dr iv ing too close to vehicles up
a head. ESC, ABS, the brake ass ist sys­
t e m, ASR, EDL dynam ic s teer ing* and the
elec tronic inte raxle differe ntia l lock*/se­
lective whee l to rque contr ol* cannot p re­
vent co lli sion s.
- Always accelerate wi th special care on
eve n smooth s urfaces su ch as those that
'
ar e we t or covered w ith i ce and snow.
T he drive whee ls can spin even w ith
-
these assistance systems that can not ~

184 Intelligent technology
_& WARNING
Have the dynamic steering* system mal­
function repaired as soon as possible by an
authorized Audi dealer or any qualified
workshop -risk of accident!
(D Tips
- If the . or
'-r,ij indicator light only stays
on for a short time, you may continue
driving.
- The dynamic steering* stability systems
are not available in the event of a system
malfunction.
- For additional information on dynamic
steering*, refer to¢
page 107.
Driving with your
quattro®
App lies to vehicles: with all-wheel dr ive
-
With all-wheel drive, all four wheels are driv­
en.
General information
With all-wheel drive, power is distributed to
all four wheels. This happens automatically
depending on your driving style and the road
conditions at the time . See also
¢ page 179.
A center differential distributes the driving
power variably to the front and rear axle . It
works together with selective wheel torque control, which activates when driving through
curves
c> page 180. With the sport differen­
tial*, power distribution to the rear wheels is
variable and can be adjusted with drive select
c:>page 107.
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 conditions
and on snow and ice. Always read and follow
safety precautions ¢
&.
Winter tires
When driving in the winter , your vehicle with
all-wheel drive has an advantage, even with
regular tires. In winter 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 four
wheels. See also ¢ page 242, Winter tires.
Tire chains
Where tire chains are mandatory on certain
roads, this normally also applies to vehicles
with all-wheel drive¢
page 243, Snow
chains .
Replacing wheels/tires
Vehicles with all-wheel drive must always
have tires of the same size. Also avoid tires
with different tread depths. For details see
page
c> page 238, New tires and replacing
tires and wheels.
Off·Road driving?
Your Audi does not have enough ground clear­
ance to be used as an off-road vehicle.
It is
therefore best to avoid rough tracks and un­
even terrain as much as possible. Also refer to
c:> page 187.
_& WARNING
-Always adjust your driving to road and traf-
fic conditions. Do not let the extra safety
afforded by all-wheel drive tempt you into
taking extra risks .
- Although the all-wheel drive is very ef­
fective, always remember that braking
capacity is limited by tire traction. You
should therefore not drive at excessive
speeds on icy or slippery road surfaces.
- On wet road surfaces, be careful not to
drive too fast because the front wheels
could begin to slide on top of the water
(aquaplaning). If this should occur, you
will have no warning from a sudden in­
crease in engine speed as with a front­
wheel drive vehicle. Always drive at speeds which are suited to the road con­
ditions - risk of crash .

24 4 T ire s and wheel s
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of wheel bolts is matched to the
factory installed rims. If differen t rims are fit­
ted, the correct wheel bolts with the r ight
length and correctly shaped bolt heads must
be used. This ensures that wheels are fitted
secure ly and that the brake system funct ions
correctly .
In ce rtain circumstances, you may not use
wheel bolts from a different vehicle -even if it
i s the same model~
page 2 71.
_& WARNING
Improperly tig htened o r maintained whee l
bolts can become loose ca using loss of
contro l, a co llision and serious persona l in­
jury.
- Always keep the wheel bolts and the
threads in the wheel hubs clean so the
wheel bolts can turn easily and be prop­
erly t ightened.
- Never grease or oil the wheel bo lts and
the threads in the wheel hubs. They can
become loose while driving if greased or
oiled, even if tightened to the specif ied
torque .
- Only use wheel bolts that belong to the
rim being installed .
- Never use different wheels bolts on your
vehicle .
-Always maintain the correct tighten ing
torque for the wheel bo lts to reduce the
risk of a wheel loss. If the tightening tor ­
que of the wheel bolts is too low, they
can loosen and com e out when the veh i­
cl e is moving. If the tightening torque is
too high, the whee l bolts and threads
can be damaged and the wheel can be­
come loose.
@ Note
The spec ified torq ue fo r the wheel bo lts is
90 ft lbs. (120 Nm) wi th a toler ance of
± 7,4 ft lbs. (± 10 Nm). Torque wheel bo lts diagonally. After changing a wheel, the
torque m
ust be checked as soon as possi­
ble with a torque wrench -preferably by an
a uthori zed Audi dea ler or q ua lified work­
shop .
Low aspect ratio tires
Your Audi is factory -equ ipped w ith low aspect
ratio tires . T hese tires have been thoroughly
tested and been se lected specifically fo r your
model for their superb perfo rmance, road fee l
and hand ling under a variety o f driv ing condi ­
t ions . As k your authorized A udi dealer for
more details .
T he low aspect ratio of these tires is ind icated
by a numera l of
55 or l ess in the tire's s ize
designation. The numeral represents the ratio
of the tire's sidewa ll height in relation to its
tread width exp ressed in percentage . Conven­
tiona l tires have a he ight/w idth ratio of 60 or
more .
The performance of low-a spect-r atio tire s is
pa rt icul arly s ens itive to imp ro per i nfl ation
pressure. It is therefore import ant that low
aspect ratio tires are inflated to the specified pre ssure and that the inflation pressure is
r e gularly checked and maintained . Tire pres­
sur es should be checked at l east once a
month and always before a long trip
~ page 233, Checking tire pressure.
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be damaged mo re
easily by impact w it h potholes, c urbs, g ull ies
o r ridges on the road, pa rticul arly if the tire is
u nderinfla ted .
In orde r to minimize the occurrence of impact
damage to t he tires of your vehi cle, we recom­
mend tha t you observe the following preca u­
tions:
- Always ma inta in recommended inflation
pressu res. Check your tire pressure eve ry
2 ,000 miles (3,000 km) and add air if neces -
sary. ..,.

250 What do I do n ow ?
jack, always fully set the parking brake
and block the wheel diagonally opposite the wheel being changed with the fold­
ing chocks or other objects . When one
front wheel is lifted off the ground, plac­
ing the Automatic Transmiss ion in "P"
(Park) will
not prevent the vehicle from
moving.
- Before yo u change a wheel, be su re the
ground is leve l and firm. If necessa ry,
use a st urdy board under the jack.
- Always store the vehicle tool kit, the
jack * and the replaced ti re in the l uggage
compartment
r=>page 12 7.
(D Note
If you are chang ing the wheel on a steep
incline, use a rock or s imilar object to
bloc k the opposite wheel to prevent the
veh icle from mov ing.
@ Tips
Obey a ll laws.
Changing a wheel
When you change a wheel, follow these­
quence described below step-by-step and in
exactly tha t order .
1. Remove the decorativ e wheel c over* or
the
wheel bol t cap s* . Fo r more details see
a lso
r=> page 250, Decorative wheel cov­
ers
or ¢ page 251, Wheels with wheel
bolt caps.
2 . Loosen the wheel bo lts r=> page 251.
3 . Locate the proper mount ing point for the
jack and align the jack below that point
r=> page 252.
4 . Lift the car with the jack r=> page 252.
5. Remove the wheel with th e flat tire and
then i nstall the
spar e tire r=> page 253 .
6. Tighten all wheel bo lts light ly .
7 .
Low er the ve hicle w it h the jack.
8 . Use the wheel bolt wrench an d
firmly
tighte n all whee l bolts in a crisscross pa t­
tern
r=> page 251.
9. Replace the decorative wheel c over* or
the
wheel bolt cap s*.
A WARNING
A lways read and follow all WARNINGS and
i nformation
r=> .& in Raising the vehicle on
page 252
and r=> page 254.
After changing a wheel
A wheel change is not complete without the
doing the following.
.. Always store the vehicle tool kit, the jack*,
and the replaced tire in the luggage com­
partment
r=> page 127.
.,. Check the tire pressure of the spare tire as
soon as possible .
"' As soon as poss ible, have the
tighteni ng
torqu es
on all wheel bolts checked w ith a
t orque wrenc h. The correct tig hte ning tor­
que is
90 ft lbs. (120 Nm).
.,. Have the flat tire
repl aced as soon as possi­
b le.
(D Tips
- If
you not ice that the wheel bo lts ar e
corroded and difficult to turn while
changing a tire, they shou ld be rep laced
before you check the tightening torque.
- Dr ive at reduced speed until you have the
tightening torques checked .
Decorative wheel covers
Applies to vehicles: w ith decorative w hee l covers
The decorative wheel covers must be removed
first to access the wheel bolts .
Fig. 19 0 Cha nging a whee l: removing t he w heel cove r Ill>

254 What do I do now? Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in the right direction .
Using a spare tire w ith a tread pattern
intended for use in a specific direction
When using a spa re tire w ith a t read patte rn
i n tended fo r use in a specific direction, please
n ote t he followi ng:
- The direction of rotation is marked by a n
ar­
row on the side of the tire .
-If the spare t ire has to be installed in the in­
correct direction, use the spare tire only
tempora rily si nce the t ire will not be able to
achi eve its optimum perfo rma nce cha racter­
i st ics w ith reg ard t o aquaplani ng, noise and
we ar.
- W e reco mmend t hat you pay pa rticular at­
ten tion t o this fact during wet we ather and
t h at you a dju st you r spee d to m atc h ro ad
con ditions.
- R epl ace the fla t tire w ith a n ew one an d
have it ins talled o n your ve hicle as soon as
p oss ible to restore the handlin g ad vantages
of a uni direct io na l tire .
Notes on wheel changing
Please rea d the information c> page 238 , New
t ires and replacing tires and wheels
if you are
go ing t o use a spare tire which is d ifferent
from the tires on your ve hicle.
Afte r you chan ge a t ire :
-Check the tire pressure on the spare imme­
diately after installation.
- Have the wheel bolt tightening torque
checked with a torque wrench as soon as possible by your authorized Audi dealer or
a qualified workshop .
- With steel and alloy wheel rims , the wheel
bolts are correctly tightened at a torque of
90 ft lbs . (120 Nm) .
- If you notice that the wheel bolts are cor­
roded and difficult to turn while changing
a tire, they should be replaced before you
check the tightening torque . -
Replace the flat tire with a new one and
have it installed on your vehicle as soon as
possible. Remount the wheel cover .
Until then , drive with extra care and at re­
duced speeds.
_& WARNING
-
- If yo u are going to e quip your ve hicl e
with tires o r rims which differ from those
which were facto ry installed, then be
sure to read the informati on
¢ page 238,
New tir es and replacing tires and
w he els .
- Always ma ke sure the damaged wheel o r
even a flat tire a nd the jack a nd tool kit
a re pro pe rly s ecu red in the luggage co m­
p artm ent and are not lo ose in the pas ­
s en ger c ompa rtm en t.
- I n an acci dent or sudde n man euve r they
co uld fly forwa rd, inju ring anyone in the
ve hicl e.
- Always s to re damaged wh ee l, j ack and
t oo ls se cur ely in the l uggage co mpa rt­
ment. Otherwise, in an accident or su d­
de n maneuve r they co uld fly forwa rd,
causing inj ury to passe ngers in the ve hi­
cle.
(D Note
Do not use comm erc ia lly availabl e tire
sea lants. O therwise, t he e lectr ical co mpo ­
n ents of t he ti re pressu re mo nitoring sys­
tem * w ill no longe r work proper ly an d the
sensor fo r the tire pressure mo nitor ing
system* will have t o be replaced by a
q ualified wor ks ho p.

Transmission ... .... .... ... .. .. .. .... 86
multitronic . . . . . . . . . . . . . . . . . . . . . . . . 86
S tron ic . ... .... ...... ... .. .. .. .. .. 86
tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Transm iss ion ma lf u nct ion (ind icator light) 92
Transport Canada . . . . . . . . . . . . . . . . . . . 129
Travel mode . . . . . . . . . . . . . . . . . . . . . . . . 54
T read Wear Indica to r (TWI) .. .. .. .. .. . 237
Trip computer Fue l consumption . . . . . . . . . . . . . . . . . . 25
M ileage . ... ... .. .. ...... .. .. .. .. .. 25
Sing le-tr ip memory .......... .... ... 25
Total-t rip memo ry . . . . . . . . . . . . . . . . . . 25
Trip odometer ............. .... .. .... 12
Trunk
refer to L u ggage compartment. . . 68, 127
T runk escape hand le . . . . . . . . . . . . . . . . . . 38
Trunk lid
refer to Rear lid .......... .. .. .. .. .. 37
Turn signa ls . ... .... .... ... .. .. .. .... 53
Warning/indicator lights ... .. .. .. .. .. 23
u
Undercoat ing . .... ..... ... .. .. .. ... 201
Unfasten ing safety belts .... .. .. .. .. . 138
Unid irect iona l tires ......... .. .. .. .. . 227
Uniform t ire q uality grading . .. .. .. .. . 24 1
Unlock ing
Rear lid ...... ................ .... . 37
Unlocking/ locking
at the lock cylinder ........ .. .. .. .. .. 36
by remote contro l . . . . . . . . . . . . . . . . . . 34
with the central locking switch .. .. .. .. 35
with the convenience key ........ .... . 35
Upper cabin heating . . . . . . . . . . . . . . . . . . 73
Use of jumper cab les ....... .. .. .. .. . 260
V
Valet park ing ............... ... ... ... 40
Vanity mirrors ............. .... .. .. .. 57
Ve hicle-c are prod ucts ....... .. .. .. .. . 194
Vehicle e lectrical system . . . . . . . . . . . . . . 17
Vehicle Identification Number (VIN) ... . 26 5
Vehicle jack .. .... ... ..... ..... .. ... 25 2
Vehicle key .. ............. .... .. .... 32
Inde x 285
Vehicle literatu re .... . .. .. ..... ... .. .. 5
Vehicle tool kit .. ... ................ 248
Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . 70
w
Warning/indicator lights . . . . . . . . . . 10, 13
Airbag system . . . . . . . . . . . . . . . . . . . . . 20
Anti- lock braking system (ABS) ... .. .. . 19
Brake system .. .. ................. . 15
E lectromechanical parking brake . ..... 16
El ectronic power control . . . . . . . . . . . . . 20
El ectronic Stab ilization Contro l (E5C) .. . 19
Generator . . . . . . . . . . . . . . . . . . . . . . . . . 17
Malfunction Ind icator Lamp (M IL) .. .. . 21
Sa fety be lt . . . . . . . . . . . . . . . . . . . . . . . . 17
Safety systems . . . . . . . . . . . . . . . . . . . . . 20
Turn signals ....... . .. .. ..... ... .. . 23
Wa rranty coverages ............. .. .. 269
Washer reservo ir ...... ............. 226
Washing ... .. .... .. . .. .. ..... ... .. 194
Automatic car wash .. .. ..... ... .. .. 195
by hand ... .. .. .... . ... ...... ... .. 195
General information ........... .... 194
Matte finish paint ................. 197
Power top clean ing . ... ..... ... .. .. 197
with a power washer ............... 196
Waxing . ... .. .... ... .. .. ..... ... .. 198
Wea r indica to r .. .. ............... .. 237
Weights .. .. .. .. .. .. ............... 26S
Wha t happens if yo u wear your safety belt
too loose? . ....... .. . .. .. ..... ... .. 137
What happe ns to unbe lted occupants? .. 133
What impairs driving safety? ...... .. .. 122
Wha t shou ld I do after changing a
whee l? ... .. .. .... .. . .. .. ..... ... .. 234
What shou ld I do after replac ing whee ls? 234
Wheel bolts Torque ...... .. ...... ............. 244
Whee ls . ... .. .... .. . .. .. ..... ... .. 2 27
Cast alloy ....... ... .. .. ..... ... .. 200
Checking tire pressure ... .... ... .. .. 233
Co ld tire inflation pressure ...... .. .. 231
General notes .. .. ................. 227
G lossary of tire and loading term inolo-
gy .......... ... .. ............... 228
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