2010 AUDI A5 CABRIOLET radiator

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 29.
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 272, "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 t he selector lever to po sition "D (Dr ive)" or ease yo ur
foot off t he accelerator pedal.
0 Note
T he tachometer needle @~ page 8, fig. 2 should o nly br iefly 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

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 2 72, "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 P 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 (Ci)) and the ABS
warning light come on together, the rear wheels could lock up
Controls and equip ­
ment Safety first
Driver information display
&, 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 _t_
A malfunction in the engine cooling system must be
repaired as soon as possible .
If the -~- 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 287.
-Add coolant if necessary==> page 288.
- Continue driving only after the engine coolant
warning/indicator light goes out .
- Contact your authorized Audi dealer for assistance if
necessary .
If t he engine coolant level is correct, then the radiator fan may be the
cause of the malfunction .
~
Vehicle care Technical data

_________________________________________________ O_ n_t_ h _ e_ ro_ a_d __ ffl'II
& WARNING (co ntinued )
• Never remo ve the ignition key from the ignition look while the
vehicle is moving. Otherwi se, the steering lock could suddenly
engage and you would not be able to steer the vehicle.
0 Note
• In the event of a malfunction in the electronic ignit ion lock a
symbo l in th e instr umen t cluster flashes with the message
Ignition
lock defective .
• Avoid h igh eng ine speeds, fast acce lerat ion or heavy eng ine loads
whi le the engine is still co ld. This cou ld damage the engine .
<£> For the sake of the environment
To avoid unnecessary engine wear and to reduce exhaust emiss ions,
do not let your vehicle s tand and w arm up. Be re ady to dr ive off i mme­
diately after starting your ve hicle. Mai ntain mode rate speed until the
eng ine is complete ly w arm . R emembe r, the eng ine per forms best at
operat ing temperature.
[I) Tips
• If the key ca nnot be removed from the ignition lock , yo u have to
pull the mec hanica l key o ut o f the maste r key in o rde r to be able to
lock the ve hicle Th e veh icle can be locked with the mec han ical key
=> page 39.
• If you open the driver's door with the ig nit io n switched on, a
buzze r soun ds and the message
Ignition is on appea rs in the instru ­
ment cl uster d is p lay . Switch t he ig nitio n off .•
Stopping the engine
- Bring the vehic le to a fu ll s top.
Controls and equip ­
ment Safety first
M
ove the select or lever to the P or N po sit ion .
- Press on t he igni tion key. The engi ne is tu rned of f.
Emergency off
If it is necessary in unusual circ umstances, the engine can be
switched off while the vehicle is mov ing . The eng ine will be switched
off if you press on the key for an extended period.
& 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 ha ve to apply more
force when steering or braking. Since you cannot steer and stop
normally, this can lead to accident s and serious injuries.
• The radiator fan can continue to run for up to 10 minute s even
after you have turned of f the engine and removed the ignition key.
The radiator fan can also turn on a gain if the engine coolant heats
up becau se of intense sunlight or heat build-up in the engine
compartment.
0 Note
Do not stop the engine immediately after har d or extended dr iving.
Keep the eng ine runni ng fo r approx imately two m in utes to p revent
excessive heat b uild -up. •
Vehicle care Technical data

___________________________________________________ O_ n_ t_h _e_ r_o _a_ d __ _
position, otherwise the vehicle is not secured aga inst rolling away.
Y ou also ca n not lock t he vehi cle using th e locking button on the door
hand le or us ing the remote key .
Convenience key defe ctive ! Use ignition lock
T hi s message appears if t he veh icle has to be sta rted not w ith the
! STAR T EN GINE STO PJ bu tton bu t with the ig nition key.
& WARNING
• Never allow the engine to run in confined spaces -danger of
asphyxiation.
• 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.
0 Note
• Avoid high engine rpm, full throttle and heavy engine loa ds until
t he e ngi ne h as r eache d op erat ing temperat ure -oth erwi se you ri sk
eng ine damage.
• Th e en gine ca nnot be sta rted by p us hi ng or tow ing t he veh icle.
• If the eng ine has bee n un der h eavy load for a n ex tended per iod,
heat b uilds up i n the engin e compartmen t after the engine is
switched off- there is a risk o f damag ing the engine. Allow the engine
t o r un at idle for abou t 2 min utes before sw itc hing it off.
[I) Tips
If y ou open t he dr iver 's door wi th th e ig nit io n sw itche d on, a bu zzer
so unds and the message
Ignition is on appears in the instrument
clu ster displa y. Swi tch t he ig nition o ff.•
Controls and equip ­
ment Safety first
App
lies to vehicles : w ith con venience key
Sw itching engine off with the
[ START ENGINE S TOP] button
- Bring yo ur ve hic le to a co mplete sto p.
- Aut omat ic tra nsmissi on*: Mo ve the select or l eve r to the P
o r N posit ion.
- Press the !ST ART EN GI NE STO P] but to n => page 108,
fig . 109 .
Emergency OFF function
If necessary, the eng ine ca n be switched off with the se lecto r lever in
t he R, Dor S* po sitio ns. To d o so, step o n the b rake pedal and pr ess
and ho ld the
! ST ART ENGINE STOPJ button (vehicle speed must be
les s than 6 mph / 10 km /h.
& 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 .
• For safety reasons, you should always park your vehicle with
the selector lever in P . Otherwise, the vehicle could inadvertently
roll away .
• After the engine has been switched off , the radiator fan can
continue to run for up to 10 minutes -even with the ignition
switched off. It can also switch on again after some time if the
coolant temperature rises as the result of a heat buildup or if the
engine is hot and the engine compartment is additionally heated
by the sun's rays.
~
Vehicle care Technical data

HomeLink® -_______________ __.
Applies to veh icles : w ith Home link® un iversa l remote cont rol
Programming the Homelink ® transmitter
The transmitter is programmed in two phases . For rolling
code transmitters, a third phase is also necessary .
Fig. 175 Overhead
console: Homelink ®
k eypa d
Fig. 176 Radiator
grille
Phase 1: programming the overhead keypad
1. Make sure your vehicle is within operating range of the
remote controlled garage door opener .
2. Set the parking brake=>
& in "General information" on
page 172 .
3. Turn the ignition on . Do not start the engine!
Con tro ls a nd e quip ­
m en t Vehicle
OP-eration
4. Press and hold the two outside Homelink ® buttons G)and
@ for approximately 20 seconds until indicator light@
=> fig. 175 begins to flash . Then release both buttons. Do
not hold the buttons for longer than
30 seconds .
- This procedure only needs to be performed
once. It erases
the factory-set default codes and does not have to be
repeated to program additional remote controls.
5. Press and hold the Homelink ® button G), @ or@ until
the indicator light @starts flashing
slowly . Release the
button.
- The system will remain in programming mode for 5
minutes. Co to the front of the vehicle and proceed with
phase
2.
Phase 2: at the radiator grille
6. Point the original remote control to the m iddle of the
radiator grille of your vehicle=> fig.
176.
7. Hold the original remote control at a distance between O­
S in. (0-13 cm) (use the shortest distance possible) .
8 . Press and hold the activation button on the remote
control.
- May be different in Canada . If so, press and re-press
(cycle) the activation button on your remote control every
two seconds.
9. The emergency flashers will flash
three times (after about
15-60 seconds) when the programming is successful.
Release the button on the remote control.
- To program more devices , repeat steps 4 to 9.
Vehicle care Do-it-yourselt service iTechnical data

HomeLink® -
----------------
Applies to vehicles : w ith Home link® un iversa l remote cont rol
Reprogramming a single button
A HomeLink ® button con be reprogrammed individually
without affecting the other button allocations .
Programming the overhead keypad
Press the appropriate Homelink® button until the indi ­
cator light begins flashing slowly.
At the radiator grille
1. Point the original remote control to the middle of the
radiator grille of your vehicle~
page 173, fig. 176.
2. Hold the original r emote control at a distance between O­
S in . (0 -13 cm) (use the shortest distance poss ible) .
3 . Press and hold the activation button on the remote
control.
4. The emergency flashers will flash three times (after about
15-60 seconds) when the programming is successful.
Now release the button on the remote control.
- If the device utilizes a rolling code, please follow phase 3
of ~
page 173 , "Programming the Homelink® trans­
mitter" for rolling code programming.
This procedure will cause the existing programming on the
Homelink ® button to be erased! •
Controls and equip ­
ment Safety first
App
lies to vehicles : w ith Home link® un iversa l remote cont rol
Erasing the programming of the
Homelink ® transmitter
When you erase the programming, the programming on
all three of the transmitter channels with be lost!
- Perform steps 1 to 4 as described on ::::;, page 173, "Phase
1: programming the overhead keypad" .
When completed, the Homelink® system will be in the programming
mode and is then ready to learn the codes for remote controlled
devices.
[I] Tips
• Programm ed buttons canno t be e ras ed ind iv idually.
• For security reasons you are adv ised to erase the programming of
the Horne Link ® system befo re you sell your vehicle. •
Vehicle care Technical data

Cleaning and protection Ill
---------------=---------=----
& WARNING
Be aware: The engine compartment of any motor vehicle is a
potentially hazardous area.
• Before working in the engine compartment, be sure to read the
information =:>
page 272.
• Before reaching into the front plenum panel, always remove
the ignition key. Otherwise, the windshield wiper system could unintentionally be switched on, possibly causing personal injury
from the moving wiper linkage.
• Never reach into the area around or touch the radiator fan. The
auxiliary fan is temperature controlled and can switch on suddenly
- even when the ignition is off.
• Do not wash, wax or dry the engine with the engine running.
Moving or hot parts could injure you.
• Do not clean the underside of the chassis, fenders, wheel
covers, or other hard to reach parts without protecting your hands
and arms. You may cut yourself on sharp-edged metal parts.
• Always read and heed all WARNINGS and other information
=:>
page 260. •
Safety first Vehicle care Technical data

-Checking and filling
-------=------=---------------------------------------------------
Closing the engine hood
-Pull the hood down until the pressure from the struts is
reduced.
- Let the hood
drop down and latch in place . Do not try to
push it shut;
it may fail to engage=> &.
& WARNING
A hood that is not completely latched could fly up and block your
view while driving.
• When you close the engine hood, check it to make sure the
safety catch has properly engaged. The hood should be flush with
the surrounding vehicle body parts.
• If you notice while driving that the hood is not secured prop­
erly, stop at once and close it. •
Working in the engine compartment
Be especially careful whenever you work in the engine
compartment.
Whenever you must perform any work in the engine compartment,
for example checking and filling different fluids, there is a risk of
injury, burns and accidents. To prevent personal injury always
observe the following WARNINGS. The engine compartment of any
vehicle is a hazardous area
=> & .
& WARNING
To help avoid injury, before you check anything under the hood :
• Turn off the engine.
• Remove the ignition key.
• Apply the parking brake.
& WARNING (continued)
• Move selector lever of automatic transmission to "P" (Park).
• Always let the engine cool down. Hot components will burn
skin on contact.
• To reduce the risk of being burned, never open the hood if you
see or hear steam or coolant escaping from the engine compart­
ment. Wait until no steam or coolant can be seen or heard before
carefully opening the hood.
• Keep children away from the engine compartment.
• Never spill fluids on hot engine components. They can cause a
fire.
• Never touch the radiator fan. The auxiliary electric fan is
temperature controlled and can switch on suddenly.
• Never open the coolant reservoir cap when the engine is still
warm. The coolant system is pressurized and hot coolant could
spray out.
• Protect your face, hands and arm from steam or hot engine
coolant by placing a thick rag over the cap when you open the
coolant reservoir.
• If work on the fuel system or the electrical system is necessary:
-Always disconnect the battery.
- Never smoke or work near heaters or open flames. Fluids in
the engine compartment could start a fire.
- Keep an approved fire extinguisher immediately available.
• To avoid electrical shock and personal injury while the engine is
running or being started, never touch: -Ignition cables
- Other components of the high voltage electronic ignition system.
• If you must perform a check or repair with the engine running: -First, fully apply the parking brake, move selector lever of
automatic transmission to "P" (Park). ..,