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) and e lectronic interax le
d ifferential lock* . ESC is swi tched on all the
time. In certain situat ions when you need less
traction , you can switch off ASR by pressing
the button
[ru <::;> page 196, fig . 178 . Be sure
to switch ASR on again when you no longer
n eed less t raction.
Anti-lock br aking s ystem (ABS)
ABS prevents the wheels from locking up
when braking . The veh icle can still be steered
even during hard braking . Apply steady pres
sure to the brake pedal. Do not pump the ped
a l. A puls ing in the bra ke peda l indicates that
the system is he lping you to brake the vehicle.
Brake assist system
The brake assist system can decrease brak ing
d istance.
It increases braking power when the
driver p resses the brake pedal quic kly in emer
gency situations. You must press and ho ld the
b rake peda l until the situation is over . In
vehicles with adaptive cruise control* , the
brake assist system is more sensitive if the
d istance detected to the vehicle ahead is too
small.
Anti -slip regulation (ASR )
ASR reduces engine power when the d rive
wheels begin to spin and adapts the force to
the road condit ions. This makes it eas ie r to
s tart, accelerate and drive up hills.
El ectronic diffe rential lock (EDL )
The ED L brakes wheels that are spinn ing and
transfers the drive powe r to the other drive
wheel or whee ls if the vehicle is equipped with
all-whee l drive*. This function is available up
t o about 75 mph (120 km/h).
I n extreme cases , ED L automatica lly switches
off to help keep the brake on the braked whee l
from overheating.
E DL wi ll switch on again au
tomatically when conditions have returned to normal.
Int ellig ent technolog y 195
Electronic intera xle differential l ock */
se le ctive wheel torque cont rol *
The electronic interaxle differential lock (front
whee l drive) or the se lective whee l torque
cont rol (all-wheel dr ive) operates when dr iv
ing through curves . The front wheel on the in
s ide of the curve or both wheels on the inside
of the curve are braked selectively as needed .
T his min imizes sliding in the front wheels and
allows for more p recise d riving through
curves . T he applicable system may no t acti
vate when driv ing in wet or snowy conditions.
A WARNING
-- ESC, ABS, ASR, EDL and the electronic in
teraxle diffe rential lock function* cannot
overcome the laws of physics. This is es
pecially important on slippery or wet
roads . If the systems begin acting to sta
bilize your veh icle, you should immedi
ately change yo ur speed to match the
road and traffic cond itions. Do not let
the increased safety provided by these
systems tempt you to take risks. Do ing
so will increase the r isk o f a loss of vehi
cle control, collision and serious personal inju ries.
-Always adapt your speed to road, traffic and weather conditions . The risk of los
ing control of the vehicle increases when
driving too fast, espec ially through
curves and on slippery or wet roads, and
when dr iv ing too close to vehicles up
ahead . ESC, ABS, the brake assist sys
tem, EDL, ASR and the e lectronic inte r
axle d iffe ren tial lock function* cannot
preven t coll is ions.
- Always accelerate with spec ial care on
even, smooth surfaces su ch as those that
are wet or covered with ice and snow.
The drive wheels can spin even with
these assistance systems that cannot al
ways he lp to red uce the risk of loss of ve-
hicle control. .,.
•
•
chains because the vehicle will be ex
tremely low. If you do drive with snow
chains on while the vehicle is at this lev
el, the snow chains might severe ly dam
age the wheelhouse and other parts of
the veh icle .
@ Tips
Where snow cha ins are mandatory oncer
tain roads, this normally also applies to
veh icles with all -wheel dr ive.
Wheel bolts
Wheel bolts mu st always be tigh tened to the
correc t torque .
The design of whee l bolts is matched to the
factory in sta lled r ims. If different rims are fit
ted, the correct wheel bolts with the right
length and correctly shaped bolt heads must
be used . This ensures that wheels are f itted
secure ly and that the brake system f unctions
correctly .
In certain circumstances, you may not use
wheel bolts from a d iffe rent vehicle -even if it
i s the same mode l
¢page 285.
A WARNING
Imprope rly tig hte ned or maintained whee l
bolts can be come loose causin g loss of
contro l, a co llision and serious persona l in
jury .
- Alw ays keep the w heel bolts and the
th reads in the wheel hubs clea n so the
wheel bolts can turn easily and be prop
er ly tightened .
- Never grease or oil the wheel bo lts and
the threads in the w heel h ubs. They can
become loose while driving if greased or
o iled, even if tightened to the specif ied
torque.
- Only use wheel bolts that belong to the rim being installed.
- Never use different whee ls bolts on your
vehicle .
- Always maintain the co rrect tightening
torq ue for the wheel bo lts to reduce the
Tire s an d wheel s 257
risk of a wheel loss. If the tighte ning tor
que of t he wheel bolts is too low, they
can loosen and come out when the vehi
cle is mov ing . If the tighte ning torque is
too h igh, the wheel bol ts and threads
can be damaged and the whee l can be
come loose.
(I) Note
The specified torque for the whee l bolts is
90 ft lb ( 120 Nm) with a tole ranc e of± 7,4
ft lb(± 10 Nm). Torq ue whee l bolts diago
nally. Afte r cha nging a whee l, the torq ue
must be checked as soon as possible wi th a
torque w rench -prefe rably by an au thor
i z ed Audi dealer or qualif ied workshop .
Low aspect ratio tires
Your Audi is facto ry-eq uipped with low aspect
ratio tires. These tires have been thoro ughly
tested and been se lected specifically for your
model for their superb performance , road fee l
and handling under a variety of driving cond i
tions . Ask your authorized Audi dealer for
more details.
The low aspect ratio of these t ires is ind icated
by a numeral of
55 or less in the tire's size
designation . The numera l rep resents the ratio
of the t ire's sidewall height in relation to its
t read width ex pressed in perce ntage. Conven
tion al tires have a he igh t/w idth ratio of 60 or
more.
The performance of low-aspe ct-ratio tire s is
particularly sensitiv e to improper infla tion
pres sure. It is therefore important that l ow
a spect ratio tires are inflated to the specified
pre ssure and that the inflation pressure is
regularly checked and maintained. Tire pres·
sures should be checked at least once a
month and always before a long trip
¢ page 246, Checking tire pressure .
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be damaged more
easily by impact w it h potholes , curbs, gul lies ..,.
•
•
264 What do I do now?
&_ WARNING
You or your passengers could be injured
while changing a wheel if yo u do n ot fol
low t hese safety precautions:
- If you have a flat t ire, move a safe dis
tance
off the road. Turn off the engine,
turn the emergency flashers on and use other warning dev ices to alert other mo
torists.
- Make sure that passengers wait in a safe
place away from the vehicle and well
away from the road and traff ic.
- T o help p revent the veh icle from mov ing
sudden ly and possibly slipping off the
ja ck, always fully set the parking b rake
and bloc k the whee l diagona lly opposite
the whee l being changed. When one
front whee l is lifted off the gro und, plac
ing the Automat ic Transmiss ion in P
(Park) will
not prevent the vehicle from
moving.
- Before you change a wheel, be sure the
ground is level and firm. If necessary,
use a sturdy board under the jack.
- Always store the vehicle tool kit, the jack
and the replaced t ire i n the luggage com
partment
c> page 134.
Before chang ing the wheel, yo u m ust acti
vate the jacking mode, so that the auto mat ic cont rols for the Adaptive Air S us
pens ion* do not make it more difficult to
lift the vehicle with the jack
c> page 266.
Changing a wheel
When you change a wheel, follow these
quence described below step-by-step and in
exactly that order .
1. Activate the vehicle jack mode*
~page 266.
-
2. Remove the decorative wheel cov er* . For
mo re details see also
c> page 265, Deco
rative wheel covers
or c> page 265,
Wheels with wheel bolt caps.
3 . L oosen the wheel bolt s c> page 265.
4. Locate the proper mounting point for the
jack and alig n the jack below that point
c> page 266 .
5.
Raise the car with the jack c> page 266.
6. Remove the wheel with the flat tire and
then insta ll
the s pare c>page 267.
7. Tighten all whee l bolts lightly.
8 . Lower the vehicle with the jack .
9. Use the wheel bolt wrench and firmly
t igh ten al l w heel bo lts c> page 265.
10. Replace the decora tive wh eel co ver*.
11. Deactivate the vehicle jack mode * in the
MMI:
I CARI f u nction button > (Car )* sys
tems
control button > Se rvicing & chec ks
> A ir susp .: jac k mode > Off .
The vehicle jack mode * switches off automati
ca lly at speeds above
6 mph (1 0 km/h) .
&_ WARNING ,.__
Always read and follow all WARNINGS and
i nformat ion
c> &. in Raising the vehicle on
page 266
and c> page 268.
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 rep laced tire in the luggage com
partment
c> page 134.
.,. Check the tire pressu re on the spare whee l
immed iate ly after mounting it .
.,. As soon as poss ible, have the
tight ening
torques
on all whee l bolts checked with a
t o rque wrenc h. The co rrect tighte ning tor
que is 90 ft lb (120 Nm).
.,. Have the fla t tire
replaced as soon as possi
b le.
(D Tips
- If you not ice th at the wheel bo lts a re
co rroded and difficult to turn while
changing a tire, they should be rep laced
before you check the tightening torque.
- Drive at reduced speed until you have the
tightening torques checked .
ll-
268 What do I do no w?
P uttin g on the spare wheel
.. Lift the spare wheel and ca refully slide it
over the alignment pin to guide it in place
¢ (D .
.. Use the hexagonal socket in the screwdriver
handle to screw in and tighten all wheel
bolts
slightly.
.. Remove the alignment pin and insert and
t ighten the remaining wheel bolt slightly
l ike the rest .
.. Turn the jack handle counte r-clockw ise to
lower the vehicle unt il the jac k is fully re
leased.
.. Use the wheel bolt wrench to tighten all
wheel bolts firmly¢
page 265 . Tighten
them
crosswise, from one bolt to the (ap
proximately) opposite one, to keep the
wheel centered.
When removing or installing the wheel,
the rim could hit the brake rotor and dam
age the rotor. Work carefully and have a
second person help you .
(j) Tips
Never use the hexagonal socket in the han
dle of the screwdriver to loosen or t ighten
the wheel bolts .
- Pull the reversible blade from the screw
driver before you use the hexagonal
socket in the handle to turn the wheel bo lts.
- When mounting tires with
unid ir ec tional
tread design
make su re the tread pat
tern is pointed the right way
¢ page 268.
-The wheel bolts should be clean and easy
to tu rn . Check for d irt and corrosion on
t h e mat ing s urfaces of both the whee l
and the h ub. Remove al l dirt from these
s ur faces before remo unting the wheel.
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in the right direction .
Using a sp are t ire w ith a tre ad pattern
intended for use in a specific direction
When using a spare t ire with a tread patter n
intended for use in a spec ific d irection , please
note the following :
- The direct ion of rotation is marked by an ar
row on the side of the ti re .
- If the spare tire has to be installed in the in
correct direct ion, use the spare tire only
temporarily s ince the tire will not be able to
achieve its optim um performance cha racte r
is tic s wit h regard to aquap la ni ng, no ise and
wear .
- We recommend that you pay part icu la r at
t en tion to th is fact d uring wet wea ther and
t ha t you adjust you r speed to match road
conditions .
- Replace the fl at tir e with a new o ne an d
have it insta lled on you r vehicle as soon as
possible to resto re the handling advantages
of a u nidirectional tire .
Notes on wheel changing
Please read the information¢ page 251, New
tires and replacing tires and wheels
if you a re
going to use a spare tire which is different
from the ti res on your vehicle .
After you change a tire:
- Check the tire pre ssure on the spare imme
diately after install ation.
- Have th e whe el bolt tightening torque
c hecked with a torque wrench as soon a s
possible by your author ized Audi dealer or
a qualified service stat ion.
- With steel and alloy wheel rims, the wheel
bolt s are cor re ctl y tightened at a torque of
90 ft lb (120 Nm ).
- If you noti ce that the wheel bolts are cor
roded and diffi cult to turn while changing
a ti re , they should be replaced before you
check the t ightening torque. .,..
282 Technical data
Gasoline engines
A6 2.0, 4 cylinder
Maximum output SAE net hp@rpm 220 @ 4450 - 6000
Max imum torque SAE net lb-ft@ rpm 259@ 1500
-4300
Displacement CID (cm
3
) 121 (1984)
Engine oil with filter change quarts (liters)
4.9 (4.6)
Fuel
Premium unleaded (91 AKI), ¢page 215, Gasoline
A6 3.0, 6 cylinder
Maximum output SAE net hp@rpm 310@ 5500 - 6500
Maximum torque SAE net lb -ft@ rpm 325 @ 2900 -4500
Displacement CID (cm
3
) 182 (2995)
Engine oil with filter change quarts
(liters) 7.2 (6.8)
Fuel
Premium unleaded (91 AKI), ¢page 215, Gasoline
56 4.0, 8 cylinder
Maximum output SAE net hp@rpm 420@ 5500 -6400
Maximum torque SAE net lb -ft@ rpm 406@ 1400 -5200
Displacement CID (cm3
)
243.67 (3993)
Engine oil with filter change q
uarts (liters) 8.8 (8 .3)
Fuel
Premium unleaded (91 AKI), ¢page 215, Gasoline
Diesel engine
A6 3.0 TOI, 6 cylinder
Maximum output SAE net hp@rpm 240@ 3500 -3750
Maximum torque SAE net lb-ft@ rpm 428@ 1750 - 2250
Displacement CID
(cm
3
) 181 (2967)
Engine oil with filter change quarts (liters) 6.8 (6.4)
Fuel
ULSD-Diesel No. 2 , ¢ page 216, Diesel fuel