fuel AUDI ALLROAD 2000 Service Manual

VEHICLE CA
RE----------------------------------------------------
When disconnecting and
connecting the battery ...
When you disconnect the vehicle battery
please note the following:
- some data stored in the driver informa-
tion system are erased,
- the clock goes out,
- the factory installed radio locks up,
- the Engine management system,
- the one-touch-u p and one-touch-down
functions of the power windows no lon­
ger work,
- all stored seat positions in the memory*
are erased.
Af teryou reconnect the battery, you must
reset the clock. � page 118.
You also have to reset the Engine manage­
ment system -see "Starter Switch "
�pa ge 113.
You also have to reset the one-touch-up and
one-touch�down feature on power win­
dows -see "Power windows "
�p age 71.
248 You
have also reset the seat memory* -see
"Seats"
� page 81.
The radio must be re-coded with the correct
radio code - see your radio Operating In­
structions.
Replacement battery
A replacement battery must have the same
specifications and dimensions as the origi­
nal equipment battery. Specifications are
listed on the battery housing.
When installing the battery, make sure the
ignition and all electrical consumers are
switched off.
r.Gb. Because of the problem of �proper di
sposal of a battery, we
recommend that you have your au­
thorized Audi Dealer change the
battery for you. Batteries contain
sulfuric acid and lead and must al­
ways be disp osed of properly ob­
serving all environmental regula­
tions. Air
cleaner
A dir ty air cleaner element not only reduces
the engine output and increases fuel con­
sumption considerably but can also cause
premature engine wear.
Normally, it is not necessary to service the
air cleaner more often than recommended
in the Maintenance booklet. If the vehicle is
driven on very dusty roads, the air cleaner
must be serviced more frequently, even dai­
ly.
If your air cleaner element must be
changed mora frequently, we rec­
ommend that you have the air clean­
er serviced by your authorized Audi
Dealer or a qualified workshop.
The air cleaner element must never
be cleaned or soaked with gasoline,
cleaning solvents or oil.
g Always heed all WARN INGS
t!!3 on page 232.

VEHICLE
CARE-------------------------
Tires I Wheels
Tires are important but often abused parts
of a vehicle. They not only influence comfort
and ride, but perform vital safety functio �s.
This section is intended to provide you w1th
imp ortant information regarding their prop­
er use, care and replacement.
• Be sure to inspect your tires at least ev­
ery 2,000 miles (3 000 kilometres) for wear
and damage.
• Damage to wheels and tires is not always
easy to see. If you believe that a tire or
wheel has been damaged, it is best to have
it replaced as soon as possible. Internal tire
damage can never get better or ': heal" it­
self, it can only get worse over t1me. Tire
damage can lead to tire failure and loss of
vehicle control. See your authonzed Aud1
Dealer for advice and assistance.
• Mark tires before removing them. Re­
mount tires on the same vehicle side be­
cause the rotation direction must stay the
same.
252 •
Store removed tires in a cool, dry and pre­
ferably dark place. Tires which are not on
wheels should be stored standing up.
• New tires may have different tread
depths due to the configuration and des!gn
by the tire manufacturers. When replacing
tires, use ones with matching tread depth.
�W ARNING
• Tires age even if they are not be­
ing used. Tires which are more
than 6 years should be used only in
an emergency and then with cau­
tion.
• Avoid damaging tires and wheel
rims. If you must drive over a curb
or other obstacle, drive slowly and
as nearly as possible at a right
angle. Frequently check tires for
uneven wear and damage. M
WARNIN G continued
• Remove embedded material.
• Replace worn or damaged tires
immediately.
• Replace missing valve dust
caps.
• Keep oil, fuel, brake fluid, etc.
away from tires.
• Keep tires inflated correctly.
New tires
New tires tend to be slippery and cannot of­
ferfull traction until they have been properly
broken in.
�W ARNING
To help avoid loss of control, al­
ways operate a vehicle with new
tires at lower speeds and with spe­
cial caution for the first 300 miles
(480 kilometres).

lira
service life
The service life of your tires depends for the
most part on the following factors:
lire pressure
Requir ed cold tire inflation pressures are
listed on a sticker inside the fuel filler flap or
on the rear passenger's door pillar (right
side) -depending on the model.
�W ARNING
• Incorrect tire pressures can lead
to a serious or fatal accident:
• Incorrect tire pressures cause
increased tire wear and can affect
handling of the vehicle.
• Incorrect pressures can also
lead to sudden tire failure and
deflati on, causing loss of vehicle
contr ol.
c£' Low tire pressures increase fuel
consumption, which is detri­
mental to the environment. Tire
pressures should be checked at least
once a month and always before a long trip.
Tire pressures are very important,
particularly when the vehicle is driv­
en at higher speeds.
If you are going to be driving at higher
speeds (a lot of expressway driving), then it
is rec ommended to increase the tire pres­
sure by 5 psi (0.3 bar).
Always check tire pressures when the tires
are cold. When the tires are warm, the pres­
sure will be highe r. Do not reduce the
pressure of warm tires.
Don't forget to check the spare wheel. The
inflation pressure is marked on the tire side­
wall.
Use an accurate tire pressure gauge when
checking inflation pressures. Never exceed
the maximum tire inflation pressure listed
on the tire sidewall. Cold tire inflation pres­
sure means: the vehicle has been standing
for at least 3 hours or driven for less than
1 mile (1 km).
Do not forget to replace the valve stem caps
after checking tire pressure. VE
HICL E CA RE
Driving habits
Fast cornering, heavy acceleration and hard
braking all increase tire wear.
Wheel balancing
The wheels on new vehicles are balanced.
When driving, however, various conditions
can cause a wheel to become unbalanced.
This may be noticed as vibrations in the
steering.
Since tire imbalance can cause wear on the
steeri ng, suspension and tires, you should
have your wheels re-balanced. A wheel
should always be balanced if a new tire has
been mounted or a tire was repaired.
Incorrect wheel alignment
Incorrect wheel alignment causes exces­
sive and uneven tire wear, impairing the
safety ofth e veh ide. If you notice excessive
tire wear, contact your authorized Audi
Dealer.
253

Only
when tires show unusual wear such as
feather-e dging should they be rotated diag­
� nall y. Yo ur vehicle may be equipped with
trres which have a specified rotation direc­
tion. The rotation direction is identified by
arrow markings on the sides of the tires.
The rotation direction must not be revers ed.
Therefore, these tires cannot be switched
diagonally. If in doubt, discuss any unusual
tire wear with your authorized Audi Dealer's
service department.
After rotation adjust tire pressure and
torque wheel bolts diagonally to 90 tt lb
(120 Nm). Refer to "Changing a wheel" on
page 267 for details. Tire
replacement
Wheels and tires approved by the manu fac­
turer have been specially matched to your
vehicle and contribute greatly to the road­
holding, driving characteristics and safety of
the vehicle.
Make sure that the new tires also meet the
specifications listed on the label located on
the inside of the fuel filler flap or on the driv­
er's door lock jamb.
It's �mporta nt to remember that in spite of
h �vrng the same tire designation, the actual
s1ze of a tire can vary from tire man ufacturer
to tire man ufacturer. Using different tire and
wheel rim combinations can result in re­
duced clearance between the tire and the
vehicle body.
Therefore, never mount tires that
are of a different designation or
have different dimensions from
those of the factory supplied tires
which came equipped on your ve­
hicle. VE
HICLE CARE
• If you must replace tires different from
those which were originally factory supplied
on your vehicle, always use the specific
brands, specifications and dimensions
which were specified by Audi for your ve­
hicle.
Yo ur authorized Audi dealer or Audi Client
Relations have information regarding the
t1res and wheel rims specified for your car,
and can tell you which tires and tire
man ufacturers were approved by the fac­
tory for original equipment installation.
• We recommend that you have your tires
changed by an authorized Audi Dealer, be­
cause they have the special tools and nec­
essary expertis e.
Furthermore, your authorized Audi Dealer
stocks a range of tires and wheels.
• If the spare tire is different from the tires
that you have mounted on your vehicle (for
example winter tires or wide profile tires),
then use the spare tire for a short period of
time only and drive with extra care. Replace
the flat tire with a tire matching the others
on your vehicle as soon as possible.
255

VE
HICLE CARE
Difficult operating
conditions
Driving under difficult
conditions
Yo ur Audi has been designed and equipped
for normal operating conditions. This also
applies to the freq uency and the extent of
service requirements as stated in the Main­
tenance brochure.
If you are planning to drive your vehicle un­
der difficult operating conditions (for exam­
ple, continuous trailer towing, very hot or
cold weather, very dusty conditions, poor
fuel quality, etc.) you may want to make
special preparations such as changing to an
appropriate oil viscosity, having your vehicle
thoroughly inspected, etc. Furthermore, the
main tenance should always be matched to
the operating conditions (see page 228).
262 Additional
accessories, Modifications and
Parts replacement
Yo ur vehicle incorporates the latest safety
design features ensuring a high standard of
active and passive safety. This safety could
be compromised by non-approved changes
to the original new-vehicle condition. For
this reason, if parts have to be replaced or
if any modifications are made to the vehicle,
please observe the following points when
installing additional accessories:
• Always cons�lt an author ized Audi
Dealer before purchasing accessories and
before any modifications are carried out. Cl
In your own interest, we advise
you to use only expressly approved
Audi accessories and genuine Audi
spare parts.
These parts and accessories have
been specially designed to be used
on your vehicle.
• Approved Audi accessories and genuine
Audi parts are available from authorized
Audi Dealers.
These dealers also have the necessary facil­
ities, tools and trained specialists to install
the parts and accessories properly.

DO-IT-YOURSELF
SERVICE----------------------
No.
A11 No.
A 11 Automatic
circuit breakers
26 -Rear window defogger,
air recirculation . . . . . . . .
30
27 -Heated steering wheel,
rear window wiper , . . . . . 15
28 -Fuel pump . . . . . . . , . . . . 20
29 - Engine timing . . . . . . . . . .
30
30 -Power roof . . . . . .
. ... 20
31 -Back-up lights, cruise control,
Automatic Transmission,
data link connector for
On Board Diagnostic,
automatic dimmng inside mirror
15
32 -Engine timing . . . . . . . . . . . . . . . . . 20
33 -Ciga rette lighter 15
34 - Engine timing
1l Amps
276 15 35
-Va cant
36 -Front fog lights,
rear fog light ...... .
37 -Radio ........... .
38 - Luggage compartment light, . . .
15
. . ... 20
power locking system . . . . . . . . . . 20
39 -Emergency flasher system ....... 15
40 -Horn . . . . . . . . . . . . . . . . . . . . . . . 25
41 -Anti-lock brake system (ABS) .. .. 25
42 -Electronic Stability Programm .... 25
43 -$-contact (radio) . . . . . . . . . . . . . . 5
44 -Seat heating . ... ... . ... ... ..... 30 The
electric power windows and the elec­
tric seat adjusters are protected with circuit
breakers which reset automatically after
the circuit overload has been correcte d.

TE
CHNICAL DAT
A-------------------------
Engine data
Maximum output SAE net
Maximum torque SAE net
No. of cylinders
Displacement
Stroke
Bore Compression ratio
Fuel1l
11 For further details see "Fuel supply" on
page 225.
286 250
hp at 5800 rpm
258 ft. lbs. at 1850 rpm
6
16 3 CID (2671 cm3)
3.40 in (86,4 mm)
3.19 in (81 .0 mm)
9.3 : 1
Premium unleaded

Capacities
Capacities (approx.)
Fuel tank
••••••• •••••••••• ••••••••••••••••• 0 ••• 0 ••
18.5 gal
Reserve (of total capacity) ............
..............
2.4 gal
Windshield and headlight washer container ..
5.0 quarts
Engine oil
with filter change .......................... •
The oil level should be checked while topping up.
Do not overf ill -see page 235.
Always head all WA RNINGS
on page 232. .
. 6.0 quarts TECHNICA
L DAT A
(70 liters)
(9 liters)
(4.7 liters)
(5.7 liters)
287

Weights
The Gross Vehicle Weight Rating (GVWR),
and the Gross Axle Weight Rating (GAWR)
for front and rear are listed on a sticker on
the left door jamb.
The Gross Vehicle Weight Rating in­
cludes the weight of the basic vehicle plus
full fuel tank, oil and coolant, plus maximum
load, which combines passenger weight
(150 lbs/68 kg per designated seating posi­
tion) and luggage weight.
Luggage weight is not increased by the use
of a roof rack, unless the passenger capac­
ity is reduced accordingly.
The Gross Axle Weight Rating is the
maximum load that can be applied at each
axle of the vehicle. �W
ARNIN G
• The actual Gross Axle Weight
Rating at the front and rear axles
should not exceed the permissible
weights, and their combination
must nbt exceed the Gross Vehicle
Weight Rating.
• Exceeding permissible weight
ratings can result in vehicle dam­
age, accidents and personal injury.
The vehicle capacity weight (max.
load) is listed inside the fuel filler flap. TECHNICAL
DATA
Notes
• The vehicle capacity weight fig­
ures apply when the load is distrib­
uted evenly in the vehicle (passengers
and luggage). When transporting a
heavy load in the luggage compart·
ment, carry the load as near to the
rear axle as possible so that the ve­
hicle's handling is not impaired.
• Do not exceed the maximum per­
missible axle loads or the maximum
Gross Vehicle Weight.
Always remember that the vehicle's
handling will be affected by the ex­
tra load. Therefore, adjust your
speed accordingly.
• Always observe local regulations.
289

CONSUMER
INFORMAnON-------------------------------------------
Reporting safety defects
(Applicable to U.S. only)
If you believe that your vehicle has a defect
which could cause a crash or could cause in­
jury or death, you should immediately in­
form the National Highway Traffic Safety
Admin istration (NHTSA) in addition to noti­
fying Audi of America, Inc.
If NHTSA receives similar complaints, it
may open an investigation, and if it finds
that a safety defects exists in a group of ve­
hicles, it may order a recall and remedy cam­
paign. However, NHTSA cannot become in­
volved in individual problems between you,
your dealer, or Audi of America, Inc.
To contact NHTSA. you may either call the
Auto Safety Hotline toll-free at:
1- 800-424-9393
(or 366- 0123 in Washington, D.C. area)
or write to:
NHTSA, U.S. Depar tmentofT ransportat ion,
washin gton, D.C. 20590.
Yo u can also obtain other information about
motor vehicle safety from the Hotline.
292 Outside the
U.S.A. or Canada
Operating your vehicle outside
the U.S.A. or Canada
Government regulations in the United
States and Canada require that automobiles
meet specific emission regulations and
safety standards. Therefore, vehicles built
for·the U.S.A. and Canada differ from ve­
hicles sold in other countries.
If you plan to take your vehicle outside the
continental limits of the United States or
Canada, there is the possibility that
• unleaded fuels for vehicles with catalytic
converter may not be available;
• fuel may have a considerably lower oc­
tane rating. Improper fuel may cause engine
damage; •
service may be inadequate due to lack of
proper service facilities, tools or testing
equipment;
• replacement parts may not be readily
available.
Audi cannot be responsible for me­
chanical damage that could result
from inadequate fuel, service or
parts availability.