248 Tire s and whee ls
Where snow chains are mandatory oncer
tain roads, this normally also applies to ve
hicles with a ll-wheel drive.
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of whee l bolts is matched to the
factory insta lled rims . If different 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
securely and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bolts from a different vehicle -even if it
is the same model
r=> page 275.
A WARNING
Improperly tightened or maintained wheel
bolts can become loose caus ing loss of
cont ro 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
er ly t ightened .
- Never grease or oil the wheel bo lts and
the threads in the wheel hubs. They can
become loose while d riving if greased or
oiled, even if tightened to the specified
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 tighten ing
torq ue fo r the wheel bo lts to reduce the
risk of a wheel loss . If the tightening tor
que of the wheel bo lts is too low, they
can loosen and come out w hen the veh i
cle is moving. If the tighteni ng torque is
too high, the whee l bolts and threads can be damaged and the whee
l can be
come loose.
@ Note
The specified torque for the whee l bolts is
90 ft lb (120 Nm) with a tolerance of± 7,4
ft lb(± 10 Nm) . Torque whee l bolts diago
nally. After changing a whee l, the torque
must be checked as soon as possible with a
torque wrench -preferably by an author
i zed Audi dealer or qualified workshop .
Low aspect ratio tires
Your Audi is factory-eq uipped w it h low aspect
ratio tires. These tires have been tho roughly
tested and been se lected specifically fo r your
model for their superb perfo rmance, road fee l
and handling under a variety of driving condi
t ions . Ask your author ized A udi dealer for
more details.
T he low aspect ratio of these tires is ind icated
by a numera l of
55 or less in the tire's s ize
designation. The numera l represents the ratio
of the tire's sidewa ll height in relation to its
tread width expressed in percentage. Conven
t iona l tires have a he ight/w idth ratio of 60 or
more .
The performance of low-aspect -ratio tires is
particularly sens iti ve to imp roper inflation
pre ssure. It is therefore important that low
a spect ratio tires ar e inflat ed to the specified
pre ssure and that the inflation pressure i s
r e gularly ch ecked and maintain ed. Tire pre s·
sure s should be checked at lea st once a
m onth and alw ays bef ore a long trip
r=> page 237, Checking tire pressure .
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be d amaged more
easily by impact with potholes, curbs, gull ies
or ridges on t he road, particularly if the tire is
u nd eri nflated.
272 Data
Data
310 hp, 3.0 liter 6-cylinder engine
Applies to vehicles: with 3 .0 liter 6-cylinder engine and all-wheel drive
Engine data
Ma ximum output SAE ne t
M aximum torque SAE net
No . of cylinders
Displacement
Stroke
Bo re
C ompress ion ratio
Fuel
Dimensions (approx .)
Leng th (w it h li cense pl ate bracket)
Width (across mirrors) He igh t (unloaded) hp@rp
m
lb-ft@ rpm
CID (cm
3 )
in (mm)
in (mm)
__ _, ,
310@ 5500 -6500
325 @ 2900- 4500
6
182 (2995)
3.50 (89 .0)
3 .33 (84.5)
10 .3: 1
Premium unleaded (91 AKI) Recommended for maxi
mum engine performance. Further details¢
page 211,
Gasoline
in (mm) 1 95 .6 (4 969)
in (mm) 84.2 (2139)
in (mm) 55.9 (1 420)
Turning circle diameter (curb to curb) ft. (m) 39.0 (11.9)
Capacities (appro x.)
Fuel tank
- Total capacity
- Reserve (o f to tal capacity)
Windshield fluid container
Windshield and headlight wa sher
fluid container *
Engine oil with filter c hange gal (li
ters)
19 .8 (75 .0)
ga l (li ters) 2.6 (1 0 .0 )
quarts (liters) 3.7 (3 .5)
qu arts ( li1ters) 5 .2 (4 .9)
quarts (li ters) 7 .2 (6 .8)
