2000 AUDI ALLROAD differential

TABLE OF CO
NTENTS----------------------------------------------
Cigar ette lighter I Socket ....... 181
Storage compartments
Steering wheel with
Audio controls .......••.... 0
Steering wheel with
radio and telephone equipment
in the steering wheel .
Mobile telephones and
CB radios ..
earphone ..•
Roof rack ... ..
I VEHICLE
OPERATION
The first 1,000 miles (1 500 km)-182
18 5
186
189 19 0
191
and afterwa rds ....... ....... .. 193
Operate your vehicle safely . . . . . 194
Operate your vehicle economically
and minimize pollution . . 195
Driving on rough roads or
rugged terrain . . . . . . . . . . 199
Braking . . . . . . . . . . . . . . . . . 201
Ele ctronic differential lock
(EDL) 204
6 Electronic
Stability Program
(ESP) .. .. .. .. .. .. .. .. .. 205
Driving with your quattro® . . . . . . 207
Trailer towing . . . . . . . . _ ... _ . . 208
I VEHICLE
CARE
Cleaning and protection 212
Fuel tank . . . . . . . .
222
Fuel supply . _ .... .. _ . . . . . . . . . . 225
Maintenance ..• •. .
Engine hood .
. . .
Engine compartment
Engine oil ..... ..... .
Engine cooling system
o •• •••
Power steering
Brake fluid ..
Battery ...
Air cleaner
Spark plugs
Belts . . . . .
. __ ..• .. ...
Windshield I
headlight washer container ..... 228
231
232
234
238
241
242
244 248
249
249
250 Wiper
blades
lires I Wheels
Difficult operating
conditions ...... . .
Additional accessories, Modifications and
Parts replacement ...... . .
I DO-IT-YOURSELF
SERVICE
First aid kit ....•.
Emergency
warning triangle . . . . . . . . .
Jack and tools ... .• . _ .. ..• .. ..
Spare wheel .. .. . .. ... . ..
Changing a wheel . . . • . . . . .
Fuses ........ .. . . . .. .. _ .. ..
Replacing bulbs
Installing I
replacing a radio
Emergency starting
Emergency towing with
commercial tow truck
Lifting vehicle .... . 251
252
262
262
263
263
264
266
267 274
277
277
278
281
283

---------------------CONTROLS AND EQUIPMENT
Turn signals and
emergency flasher
Refer to "Turn signal I headlight d1mmer
switch lever and emergency flasher" on
pages 152 and 156 for details.
High beam �D
The indicator light lights up when the high
beams are switched on or when the head­
light flasher is used.
See "Turn signal I headlight dimmer switch
lever" on page 156 for details.
Malfunction Indicator
�
Lamp (MIL) CHECK
The Malfunction Indicator Lamp is part of
the On Board Diagnostic system (OBD).
The lamp comes on when the ignition is
switched on and will go out after the engine
is started and the idle has stabilized. This is
to assure you that the Malfunction Indicator
Lamp is working properly.
For more details, see page 128. Airbag
System AIR
BAG
The ind icator light for the airbag and belt
tensioner system must come on when
the ignition is switched on, and go out after
a few seconds. If the light does not go out,
or if it comes on while you are driving, this
ind icates a fault in the airbag I belt tensioner
syste m.
If the indicator light does not come on when
the ignition is switched on, this also indi­
cates a system malfunction. If any of these
conditions occur, have the air bag system in­
spected immediately by your authorized
Audi Dealer.
For more details, see page 25. Anti-lock
Brake System
USA models:
Canada models: ABS
8
This warn ing light monitors the ABS and
EDL (Electronic Differential Lock,
sys tems.
The light will come on for a few seconds
when the ignition is switched on. The light
will go out after an automatic check se­
quence.
For additional information on the ABS sy­
stem, see page 202.
� WARNING
If the ABS warning light does not
go out, or if it comes on while driv­
ing, the ABS system is not working
properly. The vehicle can then be
stopped only with the standard
brakes (without ABS,. You won't
have the protection ABS provides.
Contact your Audi Dealer as soon
as possible.
125

CONTROLS
AND EQUIPMENT---------------------
If there is an ABS problem:
o The ABS warning light to come
on. The vehicle can still be braked,
however, the ABS will not work. See
your authorized Audl Dealer as soon
as possible.
• The ABS warning light and the
brake warning light come on to­
gether. The ABS will not work and
you will notice a change in braking
characteristics and performance.
�W ARNING
If both warning lights (ABS and
BRAKE warning light) come on at
the same time, the rear wheels
could lock up first under hard
braking. Rear wheel brake lock-up
can cause loss of vehicle control
and an accident. Have your vehicle
repaired immediately by your au­
thorized Audi Dealer or a qualified
workshop. Drive slowly and avoid
sudden, hard brake application.
12 6 If
the ABS fails, the ESP warning light will
come on. See page and pages 202 -205.
Electronic differential lock (EDL)
The electronic differential lock works in con­
junction with the ABS system. A fault in the
ABS causes therefore a malfunction of the
electr onic differential lock.
For more details on how the EDL works, go
to page 204.
Brake
USA models:
BRAKE
Canada models:
(Q))
The light comes on while the engine is
cranking. It goes out after the engine has
been started and the parking brake is fully
released. This is your assurance that the
brake warning light is functioning properly. A If the brake warning light does ¥ not light up when the engine is
cra nking or the parking brake is ap­
plied, there may be a malfunction in
the electrical system. In this case,
contact your Audi Dealer.
When the light comes on, an audible warn­
ing signal is also given.
�W ARNING
• If both warning lights (ABS and
BRAKE warning light) come on at
the same time, the rear wheels
could lock up first under hard
braking. Rear wheel brake lock-up
can cause loss of vehicle control
and an accident. Have your vehicle
repaired immediately by your au­
thorized Audi Dealer or a qualified
workshop. Drive slowly and avoid
sudden, hard brake application.

VE
HICL E OPERA TION-----------------------
'4 WARN ING continued
• Before descending a steep
grade, reduce speed and shift
transmission into a lower gear or
lower driving position. Do not ride
the brakes or hold the pedal down
too long or too often. This could
cause the brakes to get hot and di­
minish braking efficiency.
• If you damage the front spoiler,
or if you install a different spoiler,
be sure the air flow to the front
brakes is not obstructed. Other­
wise the brake system could over­
heat reducing the effective ness of
the entire brake system.
• Failure of one brake circuit will
impair the braking capability re­
sulting in an increased stopping
distance.
Avoid driving the vehicle and have
it towed to the nearest Audi Dealer
or qualified workshop.
204 Electronic differential lock
(EDL)
The EDL operates in conjunction with the
ABS. The EDL acts automatically, i.e. with­
out the driver's intervention.
With the aid of the ABS sensors, this sy­
stem monitors the speed of the driven
wheels up to about 50 mph, 80 km/h .
Within the speed range at which this sy­
stem operates, if the wheels spin (e.g. on
slippery surfaces) they are braked in a con­
trolled manner , and more of the engine's
power is directed to whiche ver wheels
achieve greater traction.
Please note:
• When driving off, always be sure to keep
road conditions in mind as you accelerate.
If a drive wheel spins because it's on a slip­
perier surface, gradually increase the pres­
sure on the accelerator pedal until the car
starts to move. •
When accelerating on slippery surfaces,
such as on ice or snow, always be careful
when depressing the accelerator pedal.
Even with the EDL working, the drive
wheels can spin and reduce your ability to
control your car.
• To prevent the disc brake of the braked
wheel from overheating, if subjected to ex­
cessive loads the EDL cuts out temporarily.
The vehicle remains operational and be­
haves in the same way as a vehicle without
EDL
If a fault occurs in the ABS the EDL is also
not functioning. This is ind icated by the ABS
warning light-see page 125.
ftl WARNING
The increased safety afforded by
EDL does not mean that you can
take safety risks. Always adapt
your driving style to the road con­
ditions and traffic situation.

VEHICLE
OPER ATION----------------------
Operation
The Anti-Lock Brake System (ABS) and the
Electronic Differential Lock (EDU are inte­
grat _ed in the Electronic Stability Progr am. In
a _ddrtron to the data provided by these func­
tions, the ESP control unit requires addition­
al measurement data provided by hig h-per­
forman ?e sensors. The rotat ional speed of
the veh1cle about its vertical axis, vehicle lat­
eral acceleration, brake pressure and the
steering angle are measured.
The direction in which the driverwishes to
travel is determined with the aid of the
stee �ing angle and the vehicle speed and is
contmually compared with the actual be­
havior of the vehicle.
If the data do not match - for example when
a vehrcle is beginning to spin out of control
- the ESP applies the brakes to the appropri­
ate wheels for the given situation and, if
necessar y, changes the vehicle traction
forces so as to reduce the slipping of individ­
ual wheels (ASR anti-slip regulation).
206 The
vehicle is then stabilized by the forces
a ?tin � on the wheel during braking. If the ve­
hicle IS overstee ring (rear tends to skid out
of the turn), the brakes are mainly applied on
the wheel that is on the outside ofthe curve.
In the case of a vehicle that is und ersteering
(tendency to slide out of the curve). the
brakes are applied at the rear wheel that is
on the inside of the curve. An audible signal
�rll accompany the brake application func­
tion.
All �SP senso rs a�e monitored continuously
wh1le the vehicle IS being driven. However,
when the vehicle is driven at low speed on
ex tremely rugged terrain, it is not always
possrble to monrtor the ESP sensors contin­
uously. Thus, in rare and exceptional cases
the ESP itself can deactivate (ESP and ABS
ind icator lights will be lit continuously).
In this case. the ride level adjustment sys­
tem lowers the vehicle to the normal level
If this happens, you may need to select th�
ride level again (see page 153).
Operation of the ESP and ABS is restored
whenever you restart the engine. m
WAR NING
! he Electronic Stability Program
•• nevertheless subject to the laws
of physics. It is particularly impor­
tant to pay attention to this fact on
wet and slippery roads.
It is therefore important that you
always adapt your driving to the
condition of the road and traffic
conditions. Do not allow the in­
creased safety provided by the
Electro nic Stability Program sys­
tem to lull you into accepting addi­
tional safety risks.

AL
PHABET ICAL INDEX----------------
Dust filter . . . . . . . . . . . . . . . . . . . 167
Dynamic headlight dimmer
control .
144
E
Electric adjustable seats . . . . . . . . . 78
Electrical socket....... . 181
Electrical socket in the luggage
compartment . . . . . . . . . . . . . . 181
Electrically heated seats. . . . . . . 150
Electromagnetic interference
compliance . . . . . . . . . . . . . . . . 291
Electronic differential lock . . . . . . 204
Electronic immobilizer . . . . . 57, 124
Electronic speed limiter . . . . . . . . 129
Electronic Stability Program
(ESP) . . . . .
. . 124, 152, 205
Emergency
· - Flasher
-K ey ... 12
5, 152
. 56
- Starting . _. • • • • . . . • • ... .
-T owing . . . . _ .... .. _ .. ... .
- Unlocking fuel tank flap .... .
298 278
281
224 -W
arning triangle ....... .... 263
Emission control system . . . . . . . 197
- Malfunction Indicator Lamp 125
Engine
- Compartment .
. . . • • • • . 232
- Cooling . . . .
. . . . • . • . • . . 238
-D ata .......•• •.... ..•. ... 286
-H ood .... .. ... ... .. •... ... 231
-O il .... ..•• .... . , • 234
- Oil level . . . . . . . . . . . • . . . . . 144
- Oil pressure . . . . . . . 143
-O il sensor defective . . . . . . . 14 4
.E ngine oil
- Adding . . . . . . . . . . . . . . . . . . • . 236
- Additives . . • • • • • . . . . • • 234
- Changing . • • . . . . 236
- Checking ... _ . _ ... ... _ .. _ . . 235
- Grades . .
234
- Te mperature gauge 117
Entering selections into the
menu . . . . . . . . . . . . . . . . . . . . .
132
c£' Envir onment
- Brake fluid . . . . . . . . . . . • . . . 243
-C leaning and protection .... . 212 -C
oolant ...... .... ... ... ... 240
- Driving to minimi ze pollution
and noise . . . .
195
- Engine oil . . . . . . . . . . . . . .
237
-F uel. ............ . •. . . . 223
- Mai ntenance . . . . . . . . . . . . 228
-S tarting procedures .... :. . . 114
- Tire pressure . . . . 253
- Unleaded fuel . . . . . • • . . . . . . 225
-W ashing .. . ... ... ...... . _ 213
Exhaust system .. , .. , • . • • . . 19
7
Expansion tank
. . • . . .. • . . .
239
F
Fan speed ...... ...... ....... . 164
Fastening eyes ...... .....•.. •. _ 89
Fas tening the safety belt 20
Filler cap . . . . . . . . . . . 223
First aid kit . . . . . . . . . . • .
263
Floor jack . . . . . . . . . . . . • 283
Floor mat fasteners . . . • 1 02
Fluid
- Brake
242