engine coolant AUDI A5 COUPE 2011 Owners Manual

Instruments and warning /indicator lights
Instruments and warning/indicator lights
Instruments
Instrument cluster and controls
The instrument cluster is your central source o f informa ­
tion .
Fig. 2 O ver view of the in strum ent cluster
© Coolant temperature gauge ......... .. .. ... ..... .
@ Tachometer ........ .... .. ... . .. .... ......... . .
® Warning/indicator light s ... .. .... .. . ... ... .. ... .
© [ SET] butto n ..... .. ... ..... ... ... .... ... . .. .. .
© Display
- Drive r information system .. .. .. ...... ........ .
- Time and da te dis play ... .. ... .... .. .. ... . .. .. .
10
11
14
11
20
12
- Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
© Reset button for trip odometer ................. .
0 Speedometer
@ Fu el g auge ...... .. .. ... . .. ... ... . ..... .... .. .
[ i ] Tips
• When swit ch ing the ign ition on, the need les in the instrument
cl uste r sw ing upward briefly . 13
12
•
The illuminat ion for the instrument clu ster light s up whenever
you switch on the ignition with the
vehi cle headlights off . As the
daylight fades, the instrument cluster illum ination likewise dim s
au toma tic ally and w ill go ou t comple tely when the ou tside ligh t is
very low . Th is feature is meant to remi nd you to switch on the head ­
lights wh en outside lig ht conditions b ecom e poor .•
Engine coolant temperature gauge
T he e ngine coo la nt gauge ~ fig. 2 © only works whe n the ignition is
on . To prevent damage to your engine, please note the following
important po ints:
Engine cold
If the needle is a t or cl ose to the bottom of the gauge, the engine h as
not yet reached its operat ing temperature. Avoid high eng ine speeds,
heavy eng ine loads, and heavy th rott le applica tions.
Normal temperature
W hen the eng ine has reached its operati ng tem perature, the needle
w ill move to the midd le of the gauge and rema in there. If the engine
is working ha rd at hig h ou tside temperat ures, the nee dle may move
higher on the gauge. Th is is not a cause for concern as long as the-~­
wa rning lig ht in t he instr ument clus ter display does not i llumina te. _.,,

Warning light in the instrument cluster display-1-
If the _L warning light in the i nstrument clus ter display flashes, this
can mean one of two things: either the coo lant
temperature is too
high, or the coolant
level is too low ~ page 34 .
If the needle is well in the uppe r area of the gauge, the coo lant
temperature is too high.
Stop the vehicle, switch the engine off, and
allow it to cool.
If th e war ning light comes o n ag ain af ter driv ing a
short distance, contact an author ized Aud i dea ler or othe r qualified
wor ksh o p.
& WARNING
• Alway s observe the warn ing in :::} page 267, "Engine compart·
ment ", before opening the hood and checking the engine coolant
level.
• Never open the engine hood if you see or hear steam, or if you
s ee engin e coolant dripping from the engine compartment. You
could burn yourself . Let the engine cool off first so that you cannot
hear or see any steam or engine coolant .
0 Note
• Mounting add ition al lights o r accesso ries in fron t of the a ir inlets
reduces the cooling effect of the radiator . At high outside tempera ­
tur es o r high engine load, the eng ine could ove rhe at.
• The front spo iler has been designed to properly d istribute the
c oo lin g air when the vehicle is moving. If the sp oi ler is d amaged, this
co uld reduce the cooling eff ect and the eng ine could then overheat .
Ask your au thor ized A udi dealer for assis tance .•
Con tro ls a nd e quip ­
m en t Vehicle
OP-eration
Instruments and warning /indicator lights
Tachometer (engine rev counter)
The tachomete r in dic ates t he engine RPM (revoluti ons
pe r mi nutes) .
If engine RPM drops below 1,500, you shou ld downsh ift to the next
lower ge ar. T he red area at the end of the s cale i ndi cates max imum
permissible engine RPM after the brea k-in per iod. Before reaching
t his area, move the sele ctor l eve r to pos ition
D (Dr ive) or ease your
foot off t he accelerator pedal.
0 Note
T he tac hometer needle@~ page 10, fig. 2 s hou ld only briefly be in
t he red zone: yo u co uld damage your eng ine! T he beg inning of the red
zone varies depe nd ing o n the eng ine.
~ For the sake of the environment
Upshifting early saves fuel and redu ces engine noise .•
[S ET] button
You c an per form d iffere nt fu nctions with t his but ton.
Fig . 3 SET butto n in
the instrume nt clu ste r
Th e !SE TI bu tto n performs the fo llow ing f unct io ns:
Vehicle care Do-it-yourselt service iTechnical data

0 Alternator failure => page 33
BRAKE
USA models: =:>page 33
Brake system malfunction

Canada models: =:>page 33
Brake system malfunction
- -
4-
Engine coolant level too =:>page 34
low/engine coolant temperature
too high
~ Engine oil pressure too low =:>page 35
~ II Refill engine oil now =:>page 35
@-e Steering malfunction =:> page 36
©-1 Ignition lock malfunction ::::>poge36
-
Alternator malfunction 0
If the O symbol in the instrument panel display flashes, then there
is a malfunction in the alternator or the vehicle electron ics . A warning
to the driver will appear, too . The driver warning goes out after about
5 seconds, but it can be brought up at any time by pressing the
!SETI
button again.
Usua lly, you can sti ll drive to the next dea lership. Turn off all but the
most necessary e lectr ica l consumers, s ince these dra in the vehicle's
battery.
0 Note
If the the _ f_ warning symbol (coolant system malfunction) a lso
lights up on the instr ument panel during the trip =>
page 34, then
Controls and equip ­
ment Safety first
•
Driver information display
you
have to stop immediately and turn off the engine . The coolant
pump is not work ing anymore--danger of damage to the engine! •
Brake system malfunction
A malfunction in the brake system must be repaired as
soon as possible.
If the warning/indicator light BRAKE (USA models)/((D )
(Canada models) in the instrument cluster flashes, there is a
brake system malfunction . A driver message appears as well
to explain the malfunction in more detail. The driver warning
goes out after about 5 seconds, but it can be brought up at
any time by pressing the
[SET] button again.
Stop the Vehicle and Check the Brake Fluid
-Stop the vehicle .
- Check the brake fluid level=>
page 284.
-Seek professional assistance if necessary .
Warning ! Fault in brake system. Contact
workshop
- Drive carefully to the nearest authorized Audi dealer or
other qualified workshop and have the malfunction
corrected =>
&.
Vehicle care Technical data

Driver information display
Parking brake Please get to a repair shop
-If this symbol appears when the vehicle is stationary or
after the ignition is turned on, check to see if the parking
brake can be released. Drive to an authorized Audi dealer
or other qualified workshop as soon as possible and have
the malfunction corrected. If the parking brake cannot be
opened, then take it to an expert at an authorized Audi
dealer.
- If the symbol appears while you are driving, it is possible
that the traction control or the emergency brake has malfunctioned. It is possible that the parking brake
cannot be applied. It is also possible that the parking
brake cannot be released after it has been applied. Drive
to an authorized Audi dealer or other qualified workshop
to have the malfunction corrected.
If the ABS system malfunctions, the ABS warning/indicator light illu­
minates together with the brake system malfunction warning/indi­
cator light~ & .
& WARNING
• Always observe the warnings in~ page 267, "Engine compart­
ment", before opening the hood and checking the brake fluid.
• Driving with low brake fluid is a safety hazard. Stop the car and
get professional assistance.
• USA models: If the BRAKE warning light and the ' warning
light come on together, the rear wheels could lock up first under
hard braking. Rear wheel lock-up can cause loss of vehicle control
and an accident. Have your vehicle repaired immediately by your
authorized Audi dealer or a qualified workshop. Drive slowly and
avoid sudden, hard brake applications.
• Canada models: If the brake warning light (Q)} and the ABS
warning light come on together, the rear wheels could lock up
& WARNING (continued)
first under hard braking. Rear wheel lock-up can cause loss of
vehicle control and an accident. Have your vehicle repaired imme­
diately by your authorized Audi dealer or a qualified workshop.
Drive slowly and avoid sudden, hard brake applications. •
Engine cooling system malfunction _L
A malfunction in the engine cooling system must be
repaired as soon as possible.
If the _ r_ symbol flashes in the display, either the engine
coolant
temperature is too high or the engine coolant level is
too low. A driver message appears as well to explain the
malfunction in more detail. The driver warning goes out after
about 5 seconds, but it can be brought up at any time by pressing the
(SET) button again .
Switch off engine and check coolant level
- Pull off the road.
- Stop the vehicle.
- Turn off the engine .
- Check coolant level==>
page 282.
-Add coolant if necessary==> page 283.
Continue driving only after the engine coolant
warning/indicator light goes out .
- Contact your authorized Audi dealer for assistance if
necessary .
If the engine coolant leve l is correct, then the radiator fan may be the
cause of the malfunction. ...

& WARNING
• If your vehicle should break down for mechan ical or oth er
rea sons , park at a safe di stan ce fr om moving traffi c, turn off the
e ngine and turn on the hazard warning lights=>
page 62, "Emer­
gency flashers A".
• Never open the hood if you s ee or hear steam or coolant
esc aping from the engine compartment -you ri sk being scalded.
Wa it until you can no longer see or hear steam or coolant
escaping.
• The engine compartment of any vehicle is a dangerou s area .
Before you perform any work in the engine compartment, turn of
the engine and allow it to cool. Follow the warning sti ckers
=> page 267 , "Engine compartment ".
0 Note
Do not cont in ue dr iving if the J_ symbol ill uminates. There is a
ma lfunct io n in the engine coo ling system -yo u could damage your
engine .•
Engine oil pressure malfunction ~
The red e ngi ne oil pressure warni ng symbol requires
immediate servic e or repair. Driving with a low oil pres ­
sur e indication is likely to caus e severe engine damage.
If the ~ symbol on t he disp lay flashes , the engi ne oil pres­
s u re is too low . A dr iver message appears as we ll to explain
t h e ma lfun ction in mo re detail. The driver wa rning goes out
a fte r about 5 seco nds, but it can be brought up at any tim e by
press ing t he
[SET] but ton aga in .
Switch off engine ! Oil pressure too low
- Sto p the veh icle .
Controls and equip ­
ment Safety first
Driver information display
- Tu rn the engine off .
- Check t he eng ine oi l level=>
page 279 .
-Contact your authorized Aud i dea ler if necessa ry.
Engine oil level too low
If the eng ine oil leve l is too low, add e ngine oil=> page 2 79.
Engine oil level correct
If the symbo l~ flashes even though the engi ne oil level is cor rect,
please seek professional assistance. Do not continue driv ing. Do not
leave t he eng ine runn ing
idle, either .
[I) Tips
• The engine oil pres sure symbol ~ is not an indi cator for a low
engine oil level. Do not rely on it . Instead , check the oil level in your
engine at regular intervals , preferably each time you refuel, and
always before going on a long trip.
• The yellow oil level warning indication.,.... requires oil refill or
workshop service without delay. Do not wait until the red oil pres­
s ure warning ~ starts to flash before you re spond to the low oil
level warning . By then, your engine may already have suffered
serious damage. •
Fill engine oil now~
~-Plea se replenish oil now
If the ~ .. symbo l lights up, then t he oil has to be replen is hed right
now =>
page 279. •
Vehicle care Technical data

Warm and cold
Deluxe automatic climate control
Applies to vehicles : wit h deluxe automat ic climat e cont ro l
Description
The climate control system can be used to set a comfort­
able temperature inside the vehicle.
The climate control system is a combination of a heating and ventila­
tion system as well a cooling system responsible for dehumidifying
and cooling the air inside the vehicle.
Th e automatic climate control system automatically maintains a
temperature once it has been set. The temperature of the air from
the vents, fan speed (air volume) and air distribution are a lso auto­
matically adjusted. The system also takes into account strong
sunlight so that manual adjustment is not necessary . So in almost all
cases,
automatic mode offers the best conditions for the comfort of
the occupants at all times of the year=>
page 97.
Please note the following :
The cooling mode lowers the humid ity level inside the vehicle. This
prevents fogging up of the windows.
In the case of high outside humidity and temperatures,
condensation
can drip from the air conditioning system evaporator and form a pool
under the vehicle . This is normal and not an indication of leaks!
At low outside temperatures, the fan automatically switches to a
higher speed when the coo lant reaches a sufficient temperature
except in the defroster position .
When starting with fu ll thrott le, the compressor of the automatic
climate control system is temporarily switched off to achieve full
eng ine power .
T o ensure engine cooling when the engine is under an extreme load,
the compressor is switched off at high coolant temperatures.
Controls and equip ­
ment Safety first
Warm and cold
Pollutant filter
The pollutant fi
lter (particle filter) ensures that impurities in the
outs ide air (e.g. dust, pollen) and odors are significantly reduced or
stopped . The air is also filtered in recirculation mode.
T he pollutant filter e lement must be changed at the intervals speci­
fied in the service plan so that the performance of the automatic
climate contro l system is not impaired.
If the effectiveness of the filter dec reases prematurely due to opera­
tion of the vehicle in areas with significant pollution, the filter
element must be changed between the specified service dates.
Key recognition
Th e cur rent automatic clima te control settings are automatically
stored and assigned to the master key.
Energy management
To prevent the battery from being discharged and to restore the
balance of energy, components which require large amounts of
energy are temporarily cut back or switched off=>
page 243. Heating
systems in particular require a great deal of energy. If you notice , for
example, that the rear window heater is not heating, then it has been
temporarily reduced or switched off by
energy management . These
systems are available again as soon as the energy balance has been
restored.
& WARNING
Traffic safety requires all window s to be clear of ic e, snow, and
condensation. Only then can good visibility be ensured . Famil­
iarize yourself with the correct operation of the automatic climate
control system as well as the proper procedure for defog-
ging/defrosting the windows. _,.
Vehicle care Technical data

_________________________________________________ w __ a _r _m __ a_n _d_ c_ o_ ld __ _
affected . To keep the time the climate control system is on as
short as possible, you should do the following:
- To save fuel, turn off cooling mode by pressing the
[AC)
button (indicator light goes out) .
- In addition, if you open the window or the
panorama/tilting sunroof* while driving, turn off cooling
mode by pressing the
[AC) button (indicator light goes
out).
- If the vehicle is extremely hot due to the heat of the sun,
briefly open doors and windows.
~ For the sake of th e environm ent
When you save fuel, you reduce emissions from the vehicle .•
Deluxe automatic climate control
plus
App lies to veh icles: w ith De luxe automatic climate control plus
Description
The air conditioner is fully automatic and is designed to
maintain a comfortable and uniform climate inside the
vehicle.
We recommend the following settings:
- Set the temperature to 75 °F (+23 °C).
- Press the
[AUTO) button.
With this setting, you attain maximum comfort in the least amount
of time. Change this setting, as desired, to meet your personal needs.
Controls and equip­
ment Safety first
The climate controls are a combination
of heating, ventilation and
coo ling systems, which automatically red uce humidity and cool the
air inside your vehicle .
The climate control automatically maintains a temperature once it
has been set. The temperature of the air from the vents, fan speed
(air volume) and air distribution are also automatically adjusted. The
system a lso takes into account strong sunsh ine so that man ual
adjustment is not necessary. So in almost all cases,
automa tic mo de
offers the best condit ions for the comfort of the occupants at all
times of the year~
page 104.
Please note the following:
T urn on the a ir cond itioner to reduce humidity in the vehicle. This also
prevents the windows from fogging up.
When the outside temperature is high and the air is very humid,
condensati on from the evaporator may drip under the vehicle. This is
normal and does not indicate a leak .
If the outside temperature is low, the fan normally only switches to a
higher speed once the engine coolant has warmed up sufficiently.
T he air conditioner temporari ly switches off when you drive off from
a standstill using full throttle to save engine power.
T he compressor also switches off if the coolant temperature is too
high, so that the engine can be adequately cooled under extreme
loads.
Du st a nd p ollen filt er
The dust and pollen filter (a combined particle fi lter and activated
charcoal filter) reduces or prevents outside a ir po llution (dust, or
pollen) from entering the vehicle.
T he dust and pollen filter must be changed at the intervals specified
in your Maintenance booklet, so that the air conditioner can properly
work.
If you drive your vehicle in an area with a high degree of air pollution,
the filter may need to be changed more frequently than specified in .,.
Vehicle care Technical data

On the road -
----------------
& WARNING (co ntinued )
• Never leave children or per sons requiring a ssistan ce unat­
tended in the vehicle. The doors can be locked using the remote transmitter, p reventing people from escaping from the vehicle on
their own in the event of an emergency. Depending on the time of
year , people inside the vehicle can be e xposed to very high or very
low t emperatures .
• Never remove the ignition key from the ignition look while the
vehicle is moving. Otherw ise, the steering lock could suddenly
engage and you would not be able to steer the vehicle.
0 Note
• In the event of a malfunct ion in the electronic ignit ion lock a
symbo l in th e i nstr umen t cluster flashes wi th the message
Ignition
lock defective .
• Avoid high eng ine spee ds, fast a cce le ra ti on or heavy eng ine load s
whi le the engine is still cold. This cou ld damage t he eng ine .
To avoid unnecessary engine wear and to reduce exhaust emiss ions,
do no t let your vehicle s tand and w arm up. Be re ady to dr ive off i mme ­
diately after starting your ve hicle . Maintain moderate speed unt il the
engine is complete ly warm . R emember, the engine per forms best at
operati ng temperature .
[I) Tips
• If the key ca nnot be removed from the ignition loc k, yo u have to
pull the mec hanical key o ut of t he maste r key in orde r to be able to
loc k the ve hicle The ve hicle can b e loc ked wi th the mec hani ca l key
=> page 44.
• If you open the driver's doo r wi th the ig nit io n switched on, a
buzzer soun ds an d the message
Ignition is on appea rs in the instru ­
m ent cl uster d isplay. Swit ch the ig nitio n off. •
Controls and equip ­
ment Safety first
Stopping the engine
-
Bring th e v ehicle t o a f ull s to p.
- Automatic transmission*: Move th e selector lever to t he P
or N position .
-Press on the igni tion key. The e ngi ne is tu rned off .
Emergency off
If it i s n ecess ary in unusu al circum stances, the eng ine can be
switched of f while the vehicle is mov ing. The engine will be switched
o ff if you pres s on t he key fo r an e xtende d peri od.
& WARNING
• Never turn off the engine until the vehicle has come to a
complete stop.
• The brake booster and servotronic only work when the engine
is running. With the ignition turned off , you have to apply more
force when steering or braking. Since you cannot steer and stop
normally , this can lead to accidents and serious injuries .
• The radiator fan can continue to run for up to 10 minutes even
after you have turned off the engine and removed the ignition key.
The radiator fan can also turn on again if the engine coolant heat s
up because of intense sunlight or heat build-up in the engine
c ompartment.
0 Note
Do no t stop the engine im medi ately a fter hard or ex tended dr iv ing.
Keep the eng ine running for approx imately two m in utes to prevent
exces sive he at build- up. •
Vehicle care Technical data

Observe speed limits. In some areas, speeds for vehicles towing
t railers are lowe r than for regular veh icles.
Always apply brakes early. When dr iv ing downh ill, sh ift in to a lower
gear to use the engine braking effect to slow the vehicle. Use of the
brakes alone can cause them to overheat and fail.
Coolant temperature
The coolant temperature gauge~ page 10 must be observed care­
fully. If the needle moves close to the upper end of the scale, reduce
speed immediately and/or turn off the air conditione r.
If the coolant temperature warning light in the instrument cluster
star ts flashing
-t- , pull off the road, stop and let the engine idle for
about two minutes to prevent heat bu ild-up.
& WARNING
Anyone not properly restrained in a moving vehicle is at a much
greater risk in an accident. Never let anyone ride in your car who is
not properly wearing the restraints provided by Audi. u
Trailer towing tips
Important to know
------------
Your vehicle handles differently when tow ing a tra iler because of the
additiona l weight and different weight distribution. Safety, perfor ­
mance and economy will greatly depend on how carefu lly you load
your trailer and operate your rig .
Before you actua lly tow your trailer, practice turning, stopp ing and
backing up in an area away from traffic. Keep pract icing until you have
become completely familiar with the way your vehicle-t railer combi­
nation behaves and responds.
Controls and equip­ ment Safety first Vehicle operation
Backing up
is d iff icult and requ ires practice . Backing up with a trailer
generally requires steer ing action opposite to that when backing up
your vehicle without a trailer.
Maintain a greater distance between your vehicle and the one in front
of you. You will need more room to stop . To compensate fo r the
trailer, you will need a larger than norma l turning radius.
When passing, remember that you cannot accelerate as fast as you
normally would because of the added load. Make sure you have
enough room to pass. After passing, allow plenty of room for you r
trailer before changing lanes again.
Avoid jerky starts, sharp turns or rapid lane changes .
[I) Tips
• Do not tow a trai ler during the break-in per iod of your vehicle.
• If you tow a tra iler, your Audi may requi re more frequent mainte­
nance due to the extra toad~
page 340. •
Parking on a slope
Do not park on a slope with a trailer. If it cannot be
avoided, do so only after doing the following:
When parking:
-Apply the foot brake.
- Have someone place chocks under both the vehicle and the
trailer wheels.
- With chocks in place, slowly release the brakes until the
wheel chocks absorb the load.
- Turn the wheels towards the curb.
- Apply the parking brake .
Vehicle care Do-it-yourself service Technical data

___ C_h_ e_c _k _i_n -=g :a,__ a_n_ d_ f_ i_ l _li _n _,g;._ __________________________________________ _
Checking and filling
Engine hood
Releasing the engine hood
The engine hood is released from inside the vehicle.
- Open the dr iver's door.
F ig . 20 3 Driver 's sid e
f oo twell : e ng in e ho od
r elease leve r
-Pull the re lease lever on the left under the instrument
panel ~ fig. 203 in the directio n of the arrow.
The hood pops up slightly under spring press ure. •
Opening the engine hood
Fig. 204 Rel ease le ver
unde r th e eng in e hood
Before opening the eng ine hood, make sure that the wi nd­
shield wipers are flat against the win dshiel d. Otherwise, they
cou ld damage the paint on the hood .
Pull up on t he release under the hood~ fig. 20 4. T his
releases the catch.
- Open t he hood all the way~& .
& WARNING
Hot eng ine coolant can burn you.
• To redu ce the r isk o f be ing burned, never open the hood if you
see or hear steam or coolant escaping from the engine compa rt­
ment. Wait until no ste am or co olant can be seen or heard before
carefully opening the hood .•