air filter AUDI A4 AVANT 2008 Owners Manual

Warm and cold -
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Warm and cold
Climate controls
Description
The air conditioner is fully automatic and is designed to
maintain a comfortable and uniform climate inside the
vehicle.
We recommend the fo llowing settings:
- Select and set a temperature between 71 °F (+22 °C) and
84 °F (+29 °C).
- Press the [AUTO
I button.
With this setting, you attain maximum comfort in the least amount
of time . C hange this sett ing, as des ired, to meet your personal
needs .
The climate contro ls are a combination of heating, ventilation and
cool ing systems, which automatica lly reduce humidity and coo l the
air inside your vehicle .
The air temperature, air flow and air distribution are automatically
regu lated to achieve and maintain the desired passenger compart ­
ment temperatu re as quickly as possible.
The system automatically compensates for changes in the outside
temperature and for the intensity of the sunlight entering the
veh ic le. We recommend you use the
Automati c mode=> page 127
for year-round comfort.
Please note the follow ing :
Turn on the air conditioner to reduce hum idity in the veh ic le. This
a lso prevent the windows from fogging up.
Controls and equip ­
ment
When the outside temperature is high and the air is very humid,
c o ndensat ion from the evaporator may drip under the vehicle. This
is normal and does not ind icate a leak.
If the outside temperature is low, the fan norma lly on ly switches to
a higher speed once the engine coolant has warmed up suff iciently .
The air conditioner temporarily switches off when you drive off from a standstill using ful l throttle to save engine power.
The compressor also switches off if the coolant temperature is too
high so that the engine can be adequate ly cooled under extreme
loads .
Air p ollut ants filt er
The air po llutants fi lter (a combined part ic le filter and activated
charcoal filter) reduces or e liminates outside air pol lution (dust, or
pollen) from enter ing the vehic le .
The air po llutants filter must be changed at the intervals specified
in you r Maintenance
& Wa rranty booklet, so that the air cond itioner
can proper ly work.
If you drive your vehic le in an area with high air pol lution, the filter
may need to be changed more frequently than speci fied in your
Audi Maintenance
& Warranty book let. If in doubt, ask your autho­
ri zed Aud i Service Adv isor fo r advice .
& WARNING
Reduced vi sibility i s da ng erou s and can cause accident s.
• For safe driving it is very important that all windows be free of
ice , snow and cond ensa tion .
• Fully familiarize yourself with the proper us e and function of
the heating and ventilation sy stem and e speci ally how to defog
and defrost the window s.
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Moreover, the a ir conditioning switches on again whenever you
press the fan speed or temperature buttons. •
Automatic air recirculation [@, I
If outside air is polluted, an air quality sensor in the
vehicle will automatically switch on the air recirculation .
Switching on air re circul ation
-Press[ ~)~ page 126, fig. 137 .
Swit ching off air r ecircul ati on
-Press~ again, or
- press [AUTO), or
-
press[ ®].
The automat ic air recirculation mode should normally be left
switched on at a ll times.
The system is ready to operate approximately 30 seconds after you
tu rn on the ignition or start the vehicle . Fresh air enters the vehicle
only during this initialization period .
If the
a ir quality sen sor in the air condit ion ing system detects
exhaust fumes in the outside air, the contro l unit wil l either pass the
incom ing a ir throug h the pol lution filter, or automat ical ly switch on
the air recirculation.
The air conditioning system wi ll automatically switch on the air
recirculation if it senses that the outside air is very po lluted . At the
same time, it will not allow any outside air to enter the vehic le until
the air quality has improved .
The air recircula tion opera tes for a maximum of
12 minu tes. If th e
windows start to fog up whi le the a ir rec irculation is on, press
[ @1
Under certain operating conditions (for example, if [@ ) or [Qi] are
pressed) the air recircu lation automatically switches off. If "ECON"
Controls and equip ­
ment
is pressed, or if the temperature is below 18° F (-8 °C), the air recir­
culat ion will operate only for
1 2 seco nds .•
Adjusting the fan speed 8 G
The automatically selected fan speed can be increased or
decreased.
D
D
D
D
D
D
F ig . 138 Fa n sp ee d
but tons a nd di spl ay
indi cation
- Press the 8 or G b uttons in the center of the contr ol
pane l~ fi g. 1 38 to adjus t the fa n speed to yo ur comfor t.
The air condit ioning system automa tica lly regu lates the fan speed
in response to the interior tempera ture . However, you can also
adjust the fan speed manua lly . A lin e of sma ll bars in the center
display above the fan control buttons will retreat or extend to reflect
your adjustments to the fan speed. •

___ C_ h_ e_c _k _ i_n ~g _ a_n_ d_ f_il _li _n_ g~--------------------------------------------
prevent the formation of harmful deposits, sometimes called
"sludge", that over time 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 deposits use only oil with
the following specifications printed on the oil container:
Audi oil standard VW 502 00
Oil container labels may carry the specification singly or in combi­
nation with other designations and oil quality standards.
Viscosity
Engine oils are graded according to their viscosity. The proper
viscosity grade oil for your engine depends on climactic or seasonal
condi tions where you drive. You can use oil wi th a viscosity grade of
SAE 5W40 across all temperature ranges for normal driving condi­
tions .
However, if engine oil viscosity grade SAE 5W40 is not available, you
can also use viscosity grade SAE 5W-30 or SAE 0W-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 oil that expressly conforms to Audi oil standard
VW 502 00 specifications is available - may you top off with a high
quality engine oil, preferably synthetic -based , that meets ACEA A3,
ACEA A5 or ACEA B5, API SL or ILSAC GF -3 specifications, but even
then, only in viscosity grades SAE 5W -40, SAE 5W -30, or SAE 0W -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 specification VW 502 00.
For more information about engine oil that has been approved for
your vehicle, please contact either your authorized Audi dealer or
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
Maintenance & Warranty booklet. Do not exceed these intervals -
harmful deposits from old engine oil can reduce engine perfor­
mance and can lead to expensive engine repairs.
Changing the oil at the recommended intervals is so very important
because the lubricating properties of oil decrease gradually during
normal vehicle use. If you are not sure when you have your oil
changed, ask your authorized 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 conditions, 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 running for a short time. This is normal and is not
a reason to change the oil more often than recommended.
Damage or malfunctions due to lack of maintenance
It is essential that you change your oil at the recommended intervals
using only engine oil that complies with Audi oil standard
VW 502 00. Your Limited New Vehicle Warranty does not cover
damage or malfunctions due to failure to follow recommended
maintenance and use requirements as set forth in the Audi Owner's
Manual and Maintenance & Warranty booklet. Your dealer will have
to deny warranty coverage unless you present to the dealer proof in
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lffl __ C_ o_n_ s_ u_m _ e_ r_ ln_ f_
o _r _m _ a_ t_ i_o _n ______________________________________________ _
For additional road safety information, please visit the Road Safety
website at:
http://www.tc.gc.ca/roadsafety/menu.htm
•
Operating your vehicle outside the U.S.A. or Canada
Government regu lations in the United States and Canada require
that automob iles meet specif ic em ission regulations and safety
standards. Therefore, vehic les bui lt for the U.S.A . and Canada differ
from veh icles sold in ot her countries.
I f you p lan to take your vehic le outside the continental limits of the
Un ited States or Canada, there is the possib ility tha t
• unleaded fue ls for vehicles with cata lytic converter may not be
avai lable;
• fuel may have a considerably lower octane rating. Improper fuel
may cause engine damage;
• service may be inadequate due to lack of proper service faci lities,
t ools or test ing equ ipment;
• replacement parts may not be readily avai lable .
• Navigation syste ms for vehicles bu ilt for the U.S.A . and Canada
wi ll not necessarily work in Europe, and may not work in other coun ­
tries outside of Nort h America .
0 Note
Audi cann ot be responsible fo r mechan ical damage t hat cou ld
result from inadequate fuel, service or parts avai lab ility. •
Audi Service Repair Manuals and
Literature
Audi Official Factory Service Manuals are published as soon as
possible after model introduction Serv ice manuals are available
from :
Audi Technical Literature Ordering Center Ca ll tol l-free:
Tel. : 1 (800) 544-8021
(from 8:00 AM to 8:00 PM, EST, Monday through Friday)
or access their website www.audi .ddsltd .com on the Internet to
order repair manua ls and ot her Audi literature. •
Maintenance
General
Your vehicle has been des igne d to help keep main tenance requ ire ­
ments to a minimum. However, a certain amount of regu lar mainte ­
n ance is st ill necessary to assu re y ou r veh ic le's safety, ec onomy and
reliabi lity. For detai led vehic le maintenance consu lt your Mainte ­
nance
& Warran ty booklet.
Under difficult operating condition s, for example at extreme ly low
outside temperatures, in very dusty regions, when towing a trailer
very frequently, etc ., some service work sho uld be perfo rme d
between the intervals specified. This applies particu lar ly to :
• oil ch anges, and
• cleaning or replacing the air filter.