Trip computer
Introduction
The trip computer gives you information on
current and average fuel mileage, average
speed, fuel range and driving time .
Fig. 8 T rip comp ute r 1
The fo llow ing informa tion is cont inuo usly
eva luated by the trip compu ter and can be dis
p layed sequentia lly in the instrument cl uster
d isplay:
Fuel range
The estimated c ruising ra nge in miles (km)
appears in the d isplay . The disp lay changes in
increments of 6 miles (10 km) .
Average fuel mileage
The average fue l economy in MPG (l/ 100 km)
since you last clea red the memory appears in
t his display .
Current fuel mileage
The instantaneous fuel consumption in miles
pe r gallon (l/ 100 km) is shown in this d isp lay .
When the ve hicle is stationary, the most re
cent fuel consumpt io n is displayed.
Average speed
The average speed in mph (km/h) since the
last time the display was reset appears i n the
d isp lay.
Elap sed t ime
The length of time that you have been driving
since you las t reset the memory appears in
this display . The maximum t ime period that
can be recorded is 999 ho urs and 59 minutes .
Driver in formation system 23
Distance
The elapsed dis tance sin ce the las t time the
memory was cleared appears in the d isp lay .
T he maxim um distance that can be recorded
is 9 ,999.9 miles (9,999 .9 k ilometers) .
(D Tips
- Fuel consump tions (average and cur
rent), range and speed are disp layed in
metric un its on Canadian mode ls.
- All sto red val ues wil l be lost if t he vehi
cle battery is d isconnected .
' . Memories
The trip computer is equipped with two fully
automatic memories as well as on efficiency
progrom.
Fi g. 9 Trip co mputer d isplay: memo ry level 1
You can switch between the trip computer 1
and 2 and the efficiency program* by pressing
the
I R ES ET I button @ c::> page 24, fig . 10 .
You can tell wh ich memory leve l is currently
active by the number or the sign in the display
c::> fig . 9. The data from the single-trip memo
ry (memo ry level 1) is being displayed if a
1
appea rs i n t he display . If a 2 is shown, then
the data from the total- trip memory is being
displayed (memory level 2). The f ue l pump
nozzle
ii indicates the efficiency program *
c::>poge 27.
Single-trip memory (Trip computer 1 )
The sing le -t rip memory stores the tr ip info r
ma tion from the time the ig nition is tu rned on
u nt il it is tur ned off. If the tr ip is cont inued
within 2 hour s from the time the ignit ion was
turned off, the new data will be included in ..,.
24 Driver information system
the calculation of the current trip informa
t ion. If the trip is interrupted for
more than 2
hours
the memory is reset automatica lly.
Total -trip memory (Trip computer 2)
Unlike the sing le-trip memory, the total-trip
memory is not reset automatically. This per
mits you to evaluate your dr iving data for the
entire period between manual resets.
Efficiency program*
The effic ien cy program can help you to use
less fuel
~ page 2 7.
Operation
The trip computer is controlled by two
switches on the windshield wiper lever.
-----------< @
Fig. 10 W iper arm/w iper lever: con tro ls for t he trip
compute r
Selecting the trip computer
"Tap the I Reset I button @ until the trip com
puter (memory level 1 or 2) appears in the
display ¢
page 23, fig . 8.
Selecting the functions
" Push in the upper (lower) protrusion on the
function selector switch @
q fig. 10. The
functions for the trip computer are d is
played in succession on the respective mem
ory levels.
Resetting the function to zero
" Push the I Reset I button @ for at least two
seconds.
You can reset the fo llowing values to zero us
ing the
I Reset I button :
- driving time -
distance
- average f uel mileage
- average speed
The t rip computer only operates when the ig
nition is on. When you turn on the ignition,
the function that was in use when you last
turned the ignition off will be displayed .
(D Tips
-You can also set the values for the func
tions to zero in the menu display
(Reset )
qpage24 .
-All stored values will be lost if the vehi
cle battery is disconnected .
- The driving information in the efficiency
program is a lso reset to zero with the
single-trip memory.
Menu display
Introduction
Display Type
•set
iF'Cf t -,,., ==
Menu off
Fig. 11 D isplay: Sta rt men u
Some funct ions in yo ur vehicle can be set , ac
t ivated, and controlled by
Menus (e.g. Acous
tic park assist *). With these menus you can al
so select the information shown in the driver
information system, which operates only with
the ignition switched on. Operation is control
led by the
! Reset I button and the rocker switch
on the wiper lever
q page 25, fig . 12.
The Start menu shows you the different dis
play types:
Set
Check
Menu off
28 Driver information system
Fue l economy messages are displayed when
fuel consumption is increased by certain con
ditions. If you follow these fuel economy mes
sages, you can reduce your vehicle's consump
t ion of fuel. The messages appear automati
cally and are only displayed in the efficiency
program . The fuel economy messages turn off
automatically after a certain period of time .
.,. To turn a fuel economy message off immedi
ately after it appears, press the
! R ESET I but
ton
¢ page 24 , fig . 1 O @, or
.,. Press the function selection switch
¢page 24, fig.10 @.
(D Tips
-Once you have turned a fuel economy
message off, it will only appear again af
ter you turn the ignition on aga in.
- The fuel economy messages are not dis
played in every instance, but rather in in
tervals over a period of ti me.
Service interval display
The service interval display reminds you when
your next service is due.
Fig. 20 Sectio n of inst rume nt cl uster : Serv ice interv al
d isplay
The schedule for the next oil change or inspec
tion is calculated automatically and displayed
according ly . The display works in two stages :
Service reminder
30 days before the next service is due, a serv
ice rem inder appears in the display when you
turn on the ignition.
After about 5 seconds the display sw itches
back to normal. The d istance and time re- maining are
updated each time the ignition is
turned on until the date due for service is
reached.
Service due
When the due date for service is reached, th e
message
Service due! appears in the instru
ment cluster immediately after you turn on
the ignition . Additionally, a warning tone
sounds. After about 5 seconds the disp lay
switches back to normal.
Calling up the service schedules
If or when an oil change or inspection is due,
can be shown in the instrument cluster by se
lecting the service interval display . Select
Chec k > Service > Oil change or Service by us
ing the
I RESET I button and the rocker switch
r:::> page 25, fig. 12 .
Resetting the service interval display
Your authorized Audi dealer will reset the cor
responding service schedule after performing
the appropriate service on you r vehicle. You
also have the possibility to reset the oil
change schedule after having performed an
o il change according to Audi specif ications.
- Switch the ignition on.
- Pull the knob
r:::> fig. 20. The message. Serv-
ice due!
appears.
- Pull the knob until the display
Oil change in
-----mi (km)--- days appears . If the I RESET I
button is not pulled within 5 seconds, the
display reset mode closes.
(D Note
If you disconnect the battery terminals, no
calculations can be made for the service
interval display dur ing this time and no
serv ice reminder will appear. Remember
that observing the proper service intervals
i s vitally important to extending the life of
your vehicle, pa rticularly the engine, and
maintaining its value. Even if the mileage
driven is low, the maximum period of one
year from one service to the next m ust not
be exceeded.
II>-
Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage.
""Try and keep well below your car's maximum
speed.
Accelerating gently reduces fuel consump
tion, engine wear, and does not disturb the
environment.
Fu el consumption, exhaust emissions and en
g ine noise increase disproportionately at high
speeds. If you drive at approximately three
quarters of top speed, fuel consumption will
be reduced by one half. Never drive faster
than the posted speed limit and weather con
ditions permit .
Reducing unnecessary idling
Even when your car is just idling it burns up
fuel.
""Shut the engine off when you are not driving
the vehicle.
""Do not warm up the vehicle by letting the
engine run at idle .
It makes sense to shut
off the engine in traff ic
jams, when waiting for trains to pass at ra il
road crossings, or at traffic lights that have
l ong wa its on red. Turning the engine
off for
just
30-40 seconds saves more fue l than is
burned starting the engine again .
It takes a long time for the engine to warm up
fully when it is running at idle. However, wear
and noxious emissions are especially high
when the engine is warming up. So you should
drive away as soon as you start the engine and
avoid running at high RPMs whi le the engine
is sti ll warming up .
(D Note
Do not leave engine idling unattended af
ter starting . If warning lights should come
on to indicate improper operation, they
would go unheeded. Extended idling also
produces heat, which could result in over-
Driving and environment 153
'
heating or othe r damage to the vehicle or
other property.
Regular maintenance
A badly tuned engine unnecessarily wastes a
lot of fuel.
""H ave your veh icle serviced at regular inter-
vals.
By having your vehicle regu larly serviced by an
Audi dealer helps to ensu re that it runs prop
erly and economically. The condition of your
vehicle not only affects its safety and ability to
hold its value, it also affects
fuel consump
tion.
Check your oil each time you fill your tank.
The amount of o il 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 certain
mileage has been driven.
You must drive your vehicle about 3,000 miles
(5,000 kilometres) before you can properly
assess oil consumpt ion.
This also app lies to fue l consumption and en
gine output.
(U) Note
- Have your vehicle maintained properly
and in accordance with the service rec
ommendations in your Warranty
& Main
tenance booklet. Lack of proper mainte
nance as well as improper use of the ve
hicle will impair the function of the
emission control system and could lead
to damage.
- Do not alter or remove any component of
the Emission Control System unless ap
proved by the manufacturer.
- Do not alter or remove any device, such
as heat shields, switches, ignition wires,
valves, which are designed to protect
your vehicle's Emission Control System
and other important vehicle compo
nents .
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154 Driving and environment
Fewer short trips
Fuel consumption will always be relatively
high on short trips .
.,. Try to avo id driving short distances with a
cold eng ine.
The engine and catalyt ic converte r have to
reac h their optimal
operating temperature to
reduce fuel consumption and noxious emis
sions effect ively .
- Just after starting, a co ld engine in a m id
s iz e car burns the fuel at a poor rate of 6-8
miles per gallon (30-40 l/l00km). Half a
mile dow n the road, the m ileage imp roves
to 12 M PG (20 l/100 km) . It will take t he
engi ne no less than
two and a half mil es
(4 km) of driving to warm up to its prope r
oper ating tempe ra tur e and ope rate at an
e conomi c mileage. This explains w hy taking
t h e car for s hort tr ips is a rat her wastef ul
co nvenience.
- T he
outside temperature is also cr itica l in
t h is regard. Yo ur car consumes more fuel in
t h e winter than in t he summer .
Trailer towing
General information
Your Audi TT Roadster is not designed to tow
a trailer .
Towing a tra iler with yo ur Audi n Roadster is
n ot recommended and can ca use damage to
the car . Damaged caused by towing a t railer is
n ot cove red by your Aud i Warran ty .
Checking and fillin g 167
Eng ine compartment
These are the most important items that you can check .
•
Fig. 130 Typ ical layout for containers and eng ine oil filler cap
(D Coolant expansion tank (-L) . . . 173
@ Eng ine oi l dipstick . . . . . . . . . . . 170
@ Engine oil filler cap (
® Jump start points(+) under a
cover,(-) bolt head . . . . . . . . . . 218
® Windshield/headlight washer
t . (ffi) con amer *
...... ....... . 180
The position of the engine o il dipstick and the
engine oil filling hole
i::> fig. 130 (items @and
@) can differ depending on the engine de
sign.
_&. WARNING
Before yo u check anything in the engine
compartment, always read and heed all
WARN INGS
i::> &. in Working in the engine
compartment on page 165.
Engine oil
Engine oil specifications
The engine in your Audi needs the right kind
of oil.
The eng ine in your Aud i is a sophist icated
powerplant that was built to exacti ng spec ifi
cations . T his eng ine needs t he right k ind of
engine oil that meets specifications regarding
quality and viscosity so that it can run
smoot hly and reliably . Choosing the right o il
and changing oil within the time and mileage
intervals printed in your vehicle's Warranty
&
Maintenance booklet matters a lot more to
day than it did years ago. Audi has developed
a specia l quality standard for engine oil t hat
will help assu re that you r vehicle's engine w ill
get the l ubr ication i t needs fo r proper opera
tion.
Modern engine lubr ication has taken a q uan
tum leap in the last few years. Many synt het ic
IJI,,
168 Checking and filling
oils available today provide better engine lu
brication that can outlast traditional petrole
um-based oils, making them a smart choice
for use throughout the life of your Audi.
Whether you use synthetic or petroleum
based engine oil, the oil that you use must
conform to Audi's oil quality standard
VW 502 00 to help keep your vehicle's engine
running smoothly and help prevent the for
mation of harmful deposits, sometimes called
"sludge," that over t ime can lead to expensive
repairs .
At the time of printing, engine oils available in
the U .S . and Canada that meet the exacting
specifications of Audi oil standard VW 502 00
are synthetic engine oils. This does not mean, however, that every synthetic engine oil will
meet Audi oil standard VW 502 00. So always
be sure that you use an approved oil.
To help prevent the formation of harmful de posits use only oil with the following specifi
cations printed on the oil container:
Audi oil standard VW 502 00
Oil container labels may carry the specifica
tion singly or in combination with other desig
nations and oil quality standards .
Viscosity
Engine oils are graded according to their vis
cosity. The proper viscosity grade oil for your
engine depends on climactic or seasonal con
ditions where you drive. You can use oil with a
viscosity grade of SAE 5W40 across all tem
perature ranges for normal driving conditions.
However, if engine oil viscosity grade SAE
5W40 is not available, you can also use viscos
ity grade SAE 5W-30 or SAE OW-40 as long as
it meets Audi oil quality standard VW 502 00
specifications .
Because engine oil that meets the Audi oil
standard may not be available everywhere
when you need it, we strongly recommend
that you always carry with you an extra quart (liter) of oil that expressly conforms to the VW 502 00 specification, in case you have to
top
off the oil while on the road.
Only if the level of the oil is at or below the
minimum mark on the oil dipstick - and no oi l
that expressly conforms to Audi oil standard
VW 502 00 specifications is available -may
you top
off with a high quality engine oil, pref
erably synthetic-based, that meets ACEA A3
or API SM specifications, but even then, only
in viscosity grades SAE SW-40, SAE 5W-30, or
SAE OW-40 . However, during the entire time
between oil change intervals, never top
off
with more than a total of 0.5 qt/liter engine
oil that does not conform to Audi oil specifica
tion VW 502 00.
For more information about engine oil that
has been approved for your vehicle, please
contact either your authorized Audi dealer o r
Audi Customer Relations at 1 (800) 822-2834
or visit our web site at www.audiusa.com or
www.audicanada.ca . Here you will also find a
current list of oils (manufacturers, brand
names etc.) that conform to Audi oil standard
vw 502 00.
Changing the engine oil
The engine oil and oil filter must be changed
according to the mileage (kilometers) and
time intervals specified in your vehicle's War
ranty
& Maintenance booklet. Do not exceed
these intervals -harmful deposits from old
engine oil can reduce engine performance and
can lead to expensive engine repairs.
Changing the oil at the recommended inter
vals is so very important because the lubricat
ing properties of oil decrease gradually during
normal vehicle use. If you are not sure when
you have your oil changed, ask your author
ized Audi Service Advisor.
Under some circumstances the engine oil
should even be changed more frequently. Change oil more often if you drive mostly
short distances, operate the vehicle in dusty
areas or mostly under stop-and-go traffic con
ditions, or when you use your vehicle where
temperatures stay below freezing point for
long periods.
Detergent additives in the oil will make fresh
oil look dark after the engine has been run
n ing for a short time . This is norma l and is not
a reason to change the o il more often than
recommended.
D amage o r m alfu nctions due to lac k of
m ainten ance
It is essen tial that yo u change your oil at the
recommended inte rva ls using only engine oil
that complies with A udi oil standard
VW 502 00 . Your Lim ited New Vehicle War
ranty does not cover damage or malfunctions
due to failure to follow recommended mainte nance and use requ ireme nts as set forth in
the Audi Owner 's Manual and Warranty
&
Maintenance book let . Your dea ler will have to
deny warranty coverage u nless you p resent to
the dea ler proof in the form of Serv ice or Re
pa ir Orde rs that all scheduled maintenance
was performed in a timely manner.
Engine oil consumption
The engine in your vehicle depends on an ade
quate amount of oil to lubricate and cool all
of its moving ports.
I n o rder to prov ide effective l ubr ication and
cooling of internal engine components, a ll in
ternal comb ustion engines consume a certain
amo unt of oi l. Oi l cons umption varies from
engine to engine and may change significantly
over the life of the eng ine . Typ ically, eng ines
with a specified break-in per iod (see
¢ page 150) consume more o il during the
break-in per iod than they consume after oil
consumption has stab ilized .
Under normal conditions, the rate of oil con
sumpt io n depends on the quality and viscosity
of the oil, the RPM (revolutions per m inute) at
which the engine is ope rated, the ambient
temperature and road condi tions. Furt her fac
tors are the amo unt of oil d ilution from wate r
condensation or fuel residue and the oxida
tion level of the oi l. As any engine is subject to
wear as mileage bui lds up, the oil consump
tion may increase over time until rep lacement
of worn components may become necessary.
Checkin g and fillin g 169
With a ll these variab les coming into p lay, no
standard rate of oil consumption can be es
tab lished or spec ified . There is no alte rnative
to regular and frequent check ing of the o il lev
el, see
Note .
If the yellow engine oil leve l warning symbo l
in the instrument cluster
Ill li ghts up, you
sho uld check the oil leve l as soon as possib le
with the oil dipstick¢ page 170. Top off the
o il at your earliest convenience ¢
page 170 .
A WARNING
Before you check anything i n the engine
compartment, always read and heed a ll
WAR NINGS ¢
& in Working in the engine
compor tment on page 165.
(D Note
D riving w it h an insufficient o il level is like
l y to cause severe damage to the engine.
© Tips
- The oil pr essur e warn ing display. is
not an indicator of th e oil level. Do not
rely on it . Instead, che ck the oil level in
your engine at regu lar int ervals, pr ef
erably e ach time you r efuel, and always
before going on a long trip .
-If you have the impression yo ur engi ne
cons umes excess ive amoun ts of oil, we
recommend that you consu lt your Aud i
dea ler to have the cause of your concern
properly d iagnosed. Keep in mind that
the accurate meas urement of o il con
sumption requires great care and may
take some t ime . Your Audi dea ler has in
st ruct ions about how to measure oil con
sumption acc urately.
-
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