2000 AUDI ALLROAD fuel consumption

CONT
ROLS AND EQUIPMENT---------------------
Trip computer
This feature generates much helpful infor­
mation by simple touch control. For the driv­
er's convenience, the computer's memory
display window is integrated in the instru­
ment cluster.
The computer function control
switches are located in the windshield
wiper switch lever.
The switches are functional only when the
ignition is turned on. Depressing the upper
or lower edge of the rocker switch (see ar­
row in illustration) will display functions ei­
ther in forward or reverse order.
14 6 The
"Reset" touch control on the
bottom of the switch serves several
functions.
By depressing "Reset" for 2 seconds, the
"d riving time", "average fuel consump­
ti on", and "average driving speed" can be
reset.
The "miles or kilometres to empty" display
cannot be reset.
By pushing "Reset" briefly, the computer's
alert signal for driving time can be inter­
rupted.
The digital display in the instrument cluster
can be switched on and off by pressing the
"R eset" button briefly.
When the ignition is switched on, the
display shows the function that was last se­
lected.
All the stored values are cancelled if the bat­
tery is disconne cted. The
trip computer has five display modes:
• Instantaneous fuel consumption
• Miles or kilometres to empty
• Driving time (maximum range is
23 hours: 59 minutes)
• Average fuel consump tion
• Avera ge driving speed
The instantaneous fuel consumption is
shown in the illustration by way of an exam­
ple.

---------------------CONTROLS AND
EQUIPMEN T
USA models:
computer calculations are displayed in the
USA measuring system
Canada models:
computer calculations are displayed in the
metric system
1/1 00 km -Instantaneous
(MPG) fuel
consumption
Fuel consumed instantaneously IS mea­
sured every 1 00 feet or 30 meters and dis­
played in units of miles per gallon (MPG) or
liters per 100 kilometres (1/1 OOkm). When
this function is selected right after engine
start -up, the display will show the average
fuel consump tion figure for the first 100
feet or 30 meters. When the vehicle is sta­
tionar y, the last unit measured will be dis­
played.
km -Kilome tres or miles to
{Mi) empty
The displa yed information (indicated in
stages of 5 miles or 1 0 kilometres) is based
on the average fuel consumption computed
during the last 20 miles or 30 kilometers. This
feature informs the driver how many
miles or kilometres of normal and smooth
driving can be covered with whatever
amount of fuel remains in the tank. Fuel
economy is the result of good driving habits.
h Driving time
Driving time elapsed will remain in storage,
even pfter the ignition is turned off. Further
driving time will be added automat ically af­
ter engine restart. Maximum storage and
display range is 23 hours: 59 minutes. To
keep track of driving time between points,
depress "Reset" for zero.
Driving time alert
While driving, the computer will automati­
cally switch to the "driving time" display ev­
ery two hours. The indicator "2:00" (or
"4:00", "6:00", "8:00" etc.) will blink in the
display window to alert the driver to take a
break. The blinker can be turned off briefly
by pushing "Reset'' or either side of the
switch. If the
ignition is off more than ten minu tes,
the driving time alert counter will automati­
cally start again from zero. If the ignition is
off less than ten minutes, the display will
blink again every two hours.
0 I (MPG) -Ave rage fuel
100 km
consumption
The display will show the computed aver­
age since the last "Reset". When the igni­
tion is turned off, the computed average re­
mains in storage. When driving is resumed,
the computation continues automatically.
To delete stored data, push "Reset".
0 km/h -Average driving
(MPH) speed
The display will show the computed aver­
age of driving speed variations since the last
"R eset". When the ignition is turned off,
the computed average remains in stora ge.
When driving is resumed, the computation
continues automatically. To delete stored
data, push "Reset"
147

------------------------VEHICLE
OPERATION
Operate your vehicle economically and
• Do not drive if you are tired.
Make frequent rest stops, at least after ev­
ery two hours of driving.
• Always adapt vehicle speed to
traffic, weather and road condi­
tions.
Remember that especially on smooth, slip­
pery roads, vehicle handling and braking de­
pend a great deal on tire adhesion. On wet
roads, the front wheels can hydroplane es­
pecially at higher speeds. If this happens,
you will then, no longer be able to steer or
brake properly.
• Always observe the posted speed
limits and use common sense. Your
good judgment can mean the differ­
ence between arriving safely at your
destination and having an accident.
Additional information regarding safety can
be found in the individual chapters of this
manual. minimize
pollution
Va rious factors influence fuel consumption:
engine wear, brakes and tires, environmen­
tal impact.
This chapter addresses some of these
points.
Yo ur personal sty!e of driving
wi II determine the economy of your vehicle,
as well as exhaust and noise levels.
«i? Do not let your vehicle stand and
, warm
up.
When the engine is idling, it takes a very
long time to warm up. Moreover, during
warm-up, both engine wear and exhaust
gas emissions are very high. Therefore, be
ready to drive off immediately after starting
the engine and avoid high engine speeds.
«i? Avoid full throttle.
Accelerating gently reduces fuel consump ­
tion, engine wear, and does not disturb the
environment. <£'
Avoid driving at high speed.
Fuel consumption, exhaust emissions and
engine noise increase disproportionately at
high speeds. If you drive at approximately
three quarters of top speed, fuel consump­
tion will be reduced by one half. Never drive
faster than the posted speed limit and
weather conditions permitting.
r.:Cib Drive as smoothly as possible
W5 and keep a lookout ahead.
Unn ecessary accelerating and braking in­
crease fuel consumption and disturb the en­
vironment.
r.:Cib Switch off your engine if you are
W5 caught in a traffic jam. This
saves fuel and reduces emissions.
195

VE
HICLE OPERATION------------------------
The external conditions
in which you drive also affect your fuel con­
sumption.
The following conditions increase fuel con­
sumption:
• Heavy traffic, especially in large cities
with many traffic lights.
• Stop-and-go driving, especially short dis­
tances so that the engine never warms up
as it should.
• Driving in heavy, slow moving traffic in
low gear so that the engine speed is rela­
tively high when compared to the distance
driven.
� Plan your trips ahaad of time. Or­
� ganizs your trips to include sev­
sral errands and to avoid heavy traf­
fi c.
Of course, there are some conditions that
will affect fuel consumption that you can't
control.
For example, fuel consumption increases in
the winter or under difficult conditions (bad
roads, towing a trailer, etc.).
19 6 The
technical requirements
for optimum fuel consumption and eco­
nomy were ''built" intoyourvehicle. Special
attention was paid to the environment. To
reta in and make use of these characteris­
tics, please note the following points:
riJ Use only unleaded gasoline.
Leaded gasoline causes damage to the cat­
alytic converter and other components of
the emission system.
t:Gh Have your vehicle serviced by an
� Audi Dealar at the specified in­
tervals -see page 228 and your
Main tenance booklet.
Having your vehicle regularly serviced by an
Audi Dealer helps ensure that it runs prop­
erly and economical ly, that it does not dis­
turb the environment, and that it has a long
service life. t:Gh
Check
your tire pressure once a
W month.
Low tire pressure increases fuel consump­
tion and tire wear, and impair s vehicle han­
dling.
�W ARNING
Underinflation and overloading of
tires can lead to tire failure. Sud­
den failur e on the road could cause
a serious or fata l accident. See
page 253 for inflation informa­
tion.
� Do not carry unnecessary items
in the luggage compartment.
Particularly in city traffic where you must
often accelerate, weight influences fuel
consumption.

----------------------VEHICLE
OPERATION
,:lib Remove
supplementary roof
� rack components when not In
use.
At high road speeds, the increased air �e­
sistance caused by the cross bars also In­
creases fuel consumption.
,:lib Switch oH any electrical equip­
� ment when no longer needed.
The more electricity you consume, the
higher the fuel consumption.
,:lib Check your vehicle 's fuel co?­'l!�Sr sumption regularly. Keep a writ­
ten record or use the trip odometer .
Check your fuel consumption ea?h time you
refu el. By doing this, you can d1scov �r a �y
inc onsistencies which could result 1n In­
creased fuel consumption and have these
checked before other problems appear. •
Check your oil each time you fill
your tank
The amount of oil used is related to engine
load and speed.
It is normal for the oil consumption of a new
engine to reach its lowest value after a cer­
tain mileage has been driven.
You must drive your vehicle about 3,000
miles (5 000 kilome tres) before you can
properly assess oil consumption.
This also applies to fuel consumption and
engine output.
• The published ENVIRONME NTAL
PROTECTION AGENCY (EPA) and
Tr ansport Canada consumption esti­
mates may not correspond to your
actual consumption on the road.
which will vary depending upon ve­
hicle load and speed. road and
weather conditions. trip length. etc. The
catalytic converter is an efficient
"clean-up" device built into the exhaust
system of the vehicle. The catalyttc convert­
er burns many of the pollutants in the ex­
haust gas before they are released into the
atmosphere.
The exclusive use of unleaded fuel is
critically important fo.r the life of
the catalytic converter and proper
functioning of the engine - see
page 225.
The catalytic converter will be per­
manently damaged by:
• Exc eeding the correct engine oil
level - see page 236;
• Driving until the fuel tank be­
comes completely empty. The en­
gine could misfire. Unburned fuel
could also get into the exhaust sys­
tem and this could cause the catalyt­
ic converter to overheat;
197

Engine
oil consumption
The rate of the oil consumption depends on
the quality and viscosity of oil, the speed at
which the engine is operated, the climate,
and road conditions as well as amount of
dilution and oxidation of the lubricant.
Because of these variables, no standard
rate of oil consumption can be established,
but drivers should expect higher oil con­
sumption at high speeds and when the en­
gine is new.
Therefore, we recommend that you check
the oil level at regular intervals (for example,
each time you are refuelling, or before going
on a long trip).
If the oil level should go below the minimal
level, the check engine oil level warn­
ing light* in the instrument cluster will
come on. See page 144. You should check
the oil level using the oil dip stick as soon as
possible, and then top off the oil as neces­
sary. Notes
• The engine in your vehicle de­
pends on oil to lubricate and cool all
of its moving parts. Therefore the
engine oil should be checked regu­
larly and kept at the required level.
• Lack of sufficient engine oil may
lead to severe engine damage.
• The oil pressure warning light is
not an oil level indicator.
A Always
heed all WAR NINGS
� on page 232.
Checking the engine oil level
The best time to check the engine oil level
is when the oil is warm.
To get a true reading, the vehicle must be on
level ground.
A Always heed all WAR NINGS
� on page 232.
• After turning off the engine, wait a few
minu tes for the oil to return to the oil pan. VE
HICLE CARE
• Pull out dipstick (arrow) and wipe it clean
with a rag.
• Reinsert dipstick; push it all the way in.
• Pull dipstick out again and read the level:
a - Yo u must not add oil.
b- You can add oil. The oil level may go
into the a range, but riot above the a
range
c - You must add oil.
After filling in oil, make sure that the oil
level is somewhere within the b range.
• After checking the oil level, please make
sure that the dipstick is pushed back in all
the way.
235

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