check engine light AUDI A5 CABRIOLET 2013 User Guide

24 Driver information d isplay
Driver information
display
Introduction
The Driver information display inside the in ­
strument cluster provides you, the driver ,
with important information.
Fig. 7 Ins trum en t cl uster : ce nter display
Fig. 8 W iper lev er: con trols fo r th e menu disp lay
Center display
W ith the ignition on, the display in the Dr iver
I nformation System shows the following in­
formation :
- CD* inserted or Radio* station set
- Outside temperature* : At temperatures be-
low 41 °F (+5 °C), a snowflake symbol ap­
pears in front of the temperature display
c::> .&_.
-Warning if one of the doors, front lid or en-
gine compartment lid is not closed .
Additional functions
You can open the following functions in the
Driver Information System display by pressing
the
! RESET I button c::> fig. 8 one or more times:
Digital speedometer*
Tire pressure monitoring *
~page245
Trip computer
Efficiency program*
Service interval display
c::>page25
c::> page 27
c::> page 28
--·-
Gearshift selector positions
Automatic transmission
Adaptive cruise control*
Auto Check Control
<::>page 82
Some functions and vehicle components are
scanned for their operating status when you
switch the ignition on and whi le you are driv­
ing. Malfunctions or required service proce­
dures are signaled audibly and indicated by
red and yellow illuminated symbols and re­
minders in the d isplay.
A WARNING
--- Never rely exclusively on the outside
temperature display to determine if a
road surface is icy or not. Keep in mind
that road surfaces, especially br idges
and overpasses, could be ice covered and
slippery even at an outside temperature
above 41 °F (+5 °C).
- Always remember, even if the "snow­
flake" symbol (ice warning) does not ap­
pear in the disp lay, black ice cou ld be on
the road.
- Always reduce your speed and drive with
specia l care in cold weather cond itions
when the chance of encountering icy
road surfaces increases.
¢j) Tips
If the vehicle is stationary, or if you are
driving at a very low speed, the tempera­
ture shown in the display might be s light ly
higher than the actual outs ide tempera­
ture. This i.s caused by the heat being radi­
ated from the engine .

keys. Unguarded access to the keys pro­
vides children the opportunity to start
the engine and/or activate veh icle sys­
tems such as the power windows etc. Un­ supervised operation of any vehicle sys­
tem by ch ildren can result in serious in­
jury.
- Do not remove the key from the ignition
lock until the vehicle has come to a com­
plete stop. Otherw ise the steering col­
umn lock cou ld suddenly engage -caus­
ing the risk of an accident.
(D Tips
- The operation of the remote contro l key
can be temporarily disrupted by interfer­
ence from transmit ters in the vici nity of
the vehicle working in the same frequen ­
cy range (e .g . a ce ll phone, radio equip­
ment).
- Fo r security reasons, replacement keys
are on ly available from Audi dea lers .
- For Decla rat ion of Compliance to United
States FCC and Industry Canada regula­
tions
~page 272.
Removing the mechanical key
0 ....
9 r
. ~
•
Fi g. 18 Remote master key: remov ing the mechanical
key
.,. Press the release button@r=:>fig. 18.
.,. Pull the mechan ical key ® out of the mas­
ter key.
Using the mechan ical key, you can:
- lock and unlock* the glove compartment on
t h e passenger's sider::;,
page 67.
Op enin g an d clos ing 33
- lock and unlock the vehicle manually
r::;, page 36 if this should not be possible
w ith the master key.
- use the ignition key emergency release
r::;, page 34.
Check light and battery in the master
key
Fig . 1 9 Remote master key: removing the battery hold ­
er
Check li ght in the mast er key
The check light @r=:>
fig. 19 in the master key
provides information about different condi­
tions.
.,. The check light turns on briefly once when a
button is pressed, and during an "inquiry"
by the convenience key system.
.,. If the check light does not come on, the
battery is dead a nd has to be replaced. In
add it ion, when the battery is dead
the m
indicator light appea rs in the instrument
cluste r display as we ll as the message
Please cha nge key batte ry .
Ma ster key battery replacement
.,. Remove the mechanica l key
r::;, page 33 .
.,. Press the release button @ r::;, fig. 19on the
bat tery ho lder and a t the same time pull the
battery ho lder out of the master key in the
direction of the arrow .
.,. Insta ll the new battery CR 2032 with the
" + " sign facing down .
.,. Push the battery holder carefully into the
master key.
.,. Install the mechanical key .

182 Intelligent technology
You can compensate for this slightly reduced
braking power by pushing harder on the brake
pedal. Avoid heavy braking loads d uring the
break-in per iod.
Operating condition s and d riv ing hab it s
The brakes on today 's automob iles are st ill
subject to wear, depending largely on operat ­
ing conditions and driving habits¢.&. . On
vehicles that are either driven mostly in stop­
and-go city traffic or are driven hard, the brake pads should be checked by your author­
ized Audi dealer more often than specified in
the
Warra nty & Maint enance booklet . Failure
to have your brake pads inspected can result in red uced b rake pe rformance.
On steep slopes, you should use the brak ing
effect of the engine . Th is way, you prevent un­
necessa ry wear on the brake system. If you
must use yo ur brakes, do not hold the brakes
down continuously . P u mp the brakes at inter ­
va ls.
Operating noise
Noises may occur when braking depending on
the speed, braking fo rce and outside condi­
tions s uch as temperature and humidity .
Effect of w ater and ro ad s alt
In certain situat ions, for example after driving
through water, in heavy ra in, after overn ight
condensat ion or after washing your car, the
b rak ing effect can be reduced by moistu re or
ice on the bra ke roto rs and b rake pads . The
b rakes must be dried fi rst with a few caref ul
b rake app lications .
At higher speeds and with the w indshield w ip­
e rs turned on, the brake pads press agains t
the brake rotors for a short amount of time.
This occurs at regular intervals without the
driver noticing and provides for better brake response time under wet condit ions.
The effectiveness of the brakes can be reduced
when the vehicle is driven on a salt-covered road and the brakes are not used. Likewise,
you clean
off accumulated sa lt coating from brake d
iscs and pads with a few cautio us ap­
plications of the brake
Q ,&. .
Corrosion
The re may be a tendency for dirt to bu ild up
o n the brake pads and corros io n to fo rm on
the d iscs if the car is not driven regu la rly or
only for short trips with litt le use of the
brakes.
If the brakes a re not used frequently, o r if cor­
rosion has formed on the discs, it is advisable
to clean
off the pads and discs by braking
firmly a few times from a moderately high
speed
c> &. .
Faults in the brak e syst em
If you shou ld no tice a sudden increase in
brake pedal trave l, then one of the two brake
ci rcuits may have fai led
c> &. .
Lo w brake fluid lev el
Malfunctions can occu r in the bra ke system if
the b rake fluid level is too low. The brake f lu id
level is monitored electronically.
Brake booster
The brake booster increases the pressure that
yo u generate with the brake peda l. It works
o n ly when the engine is running .¢
&
Brake lining we ar status
Brake lining wear may be checked by visual in­
spect ion of the condition of the brake pads
through the open ings in the wheel. If neces­
sary, the wheel may be removed for th is i n­
spect io n ¢
page 249, Changing a wheel.
_&. WARNING
- New brake pads don't have the bes t stop­
p ing power and m ust be "bro ken-in" dur­
ing the initial 100 to 150 miles (150 to
200 kilometers) of normal city driving.
You can compensate for this by pressing
the brake pedal more firmly. Th is also
applies later when new pads are instal­ led.

Trailer towing Driving with a trailer
General information
Your Audi was designed primarily for passen­
ger transportation .
If you plan to tow a tra iler, p lease remember
that the addit ional load will affect durab ility,
economy and performance .
T railer towing not on ly places more stress on
the vehicle, it also calls for more concentra­
tion from the driver.
F or this reason, a lways fo llow the operating
and driving instructions provided and use
common sense.
Technical requirements
Traile r hitch
Use a weight-carrying hitch conforming to the
gross trailer we ight. The hitch must be suita­
b le for your veh icle and trailer and must be
mounted secure ly on t he veh icle's chassis at a
technically sound location . Use only a t railer
h itch w ith a removab le ball moun t. A lways
check with the tr ailer hitch man ufac tur er to
make sure that you are using the correct
hitch.
Do not use a bumper hitch.
T he hitc h must be installed in such a way that
it does not inte rfe re with the impac t-absorb­
i ng b umper syst em. No modifica tions should
be made to the vehicle exhaus t and b rake sys­
tems . From t ime to time, check that a ll hitch
mo unt ing bolt s remain securely fas tened.
W hen you are not tow ing a trailer, remove the
trai le r hi tch ball moun t. T h is prevents the
hi tch from causing damage sho uld your ve hi­
cle be str uck from be hind
¢ &. .
Trailer brakes
If yo ur tra iler is equ ipped w it h a braking sys­
tem, check to be su re that it conforms to a ll
r eg ulat io ns.
Trailer towin g 191
The trailer hyd ra ulic bra ke system must not be
direct ly connected to the vehicle's hydraulic
brake system
¢ &. .
Safety chains
Alw ays use s afety chains between your ve hicle
and t he tra ile r.
Trailer lights
Tra ile r lights m ust meet all reg ulations . Be
su re to check w ith your authorized Audi dealer
fo r c orrec t w iri ng, sw itches, and relays.
Mirrors
If you a re unable to see the traffic behind you
u sing the regula r outside m irrors, then you
must insta ll ext ended mir ro rs. It is important
t h at you
always have clea r vis io n to the rear .
.8, WARNING
- If a trailer has elec trica l br ake s plea se
no te th at t hese bra kes are not activat ed
by the fa ctory -fit ted control unit -risk of
accident!
- After removing the t railer hi tch, do no t
s to re it in yo ur vehicle . In case of sudden
brak ing, the hitch could fly fo rward and
in ju re you or yo ur passenge rs .
Operating instructions
Maximum traile r we ight
-
A trai ler for your vehicle is limited to a typical
class 1 or class 2 tra iler.
Trailer load distribution
Be sure the lo ad in the traile r is h eld secure ly
i n p lace to p reven t it from shifting fo rward,
backward or sideways.
Never allow a passenger to ride in a trailer
¢ &. in Driving instru ctions on page 19 2.
Engine cooling system
Towing a t railer ma kes t he engine wor k hard ­
er . It is impo rta nt that the cooling system's
perfo rman ce is up to the additional load.
Make sure tha t the coo ling sys tem h as enough
f lu id . .,..
•
•

192 Trailer towing
Tire pre ss ure
When towing a trai le r, inflate the t ires of your
vehicle to the co ld tire pressure listed under
"Full load" on the label located on the driver 's
side B-pillar (visible when the door is open).
Inflate trailer tires to trailer and tire manufac ­
turers' specifications.
Light s
The headlight settings should be checked with
the trailer attached before dr iving off. Check
to make sure both vehicle and tra iler lights
are working properly.
Saf ety chains
Be sure tra iler sa fe ty cha ins a re p roperly con­
nected from the trailer to the hitch on the ve ­
hicle. Leave eno ugh slack in the chains to per ­
mit turning corners. When you install safety
cha ins, make sure they w ill not drag on the
road when you are driving.
The chains shou ld cross under the trai ler
tongue to prevent it from dropping in case of
separation from the hitch.
Driving instructions
Driving with a trailer always requires extra
care and consideration.
To obtain the best possible handling o f vehicle
and trai ler, p lease note the following:
.,. Do not tow a loaded tra iler whe n your car it ­
self is no t loaded .
.,. Be especia lly careful when passing other
vehicles .
.,. Observe speed limits .
.,. Do not drive at the maximum permissible
speed.
.,. Always apply brakes early .
.,. Monitor the temperature gauge.
Weigh t di stribution
Towing a loaded trai ler with an empty car re­
sults in a highly unstable distribution of
weight . If this cannot be avo ided, drive at very
low speeds only to avoid the risk of losing
steer ing control. A "ba
lanced' ' rig is easier to operate and con­
trol. This means that the tow vehicle should be loaded to the extent possible and permissi­
ble, while keep ing the trai ler as light as possi­
ble under the c ircumstances. Whenever poss i­
ble, transfer some cargo to the luggage com ­
partment of the tow veh icle while obse rving
tongue load requ irements and vehicle load ing
considerations.
Speed
The higher the speed, the more d iff icu lt it be­
comes for the driver to control the rig. Do not
drive at t he maximum permissible speed. Re­
duce your speed even more if load, weather or
wind conditions are unfavorable -pa rtic ularly
whe n going downhill.
Reduce veh icle speed
immediately if the trail­
er shows the slightest s ign of sway ing.
Do n ot
try to sto p th e swaying by acc elerating .
Observe speed limits. In some areas, speeds
fo r vehicles tow ing tra ile rs a re lower than for
regular veh icles .
Always apply brakes early. When driving downh ill, shift into a lower gear to use the en ­
gine braking effect to slow the vehicle . U se of
the brakes alone can cause them to overheat
and fail.
Coolant tempe rature
The coo lant temperature gauge c> page 10
must be observed carefu lly. If the needle
moves close to the upper end of the scale, re­
duce speed immediately and/or turn off the
air conditioner.
If the coolant temperature warning light •
i n t he i nstrument cluster starts flashing, pull
off the road, stop and let the engine
idle for
abo ut two min utes to prevent he at build-up .
_& WARNING
Anyone not proper ly restra ined in a mov ­
i ng vehicle is a t a much greater risk in an
accident . Never let anyone ride in yo ur car
who is not p roperly wea ring the rest raints
prov ided by Audi.
-

(D Note
- Never use chemical solvents (e.g . lighter
flu id, turpentine), waxes, shoe polish or
s imilar products on Alcantara ® surfaces.
- To avoid damage, have stubborn stains
removed by a commercia l cleaning spe­
cialist.
- Do not use brushes, stiff sponges or sim­
ilarly abrasive cleaning aids.
Safety belts
Only well-maintained safety belts work relia­
bly when needed.
.. Keep belts clean .
.. For cleaning, use a mi ld soap and water sol­
ution . Let be lts dry thoroughly and away
from direct sunlight.
.,. Do not allow inertia reel safety belts to re­
tract before they are completely dry.
.,. Check the condition of your safety belts
reg­
ularly .
Heavily soiled safety belts may not retract
properly .
A WARNING
Damaged safety belts can break in a crash.
- Anything that might damage your safety
belts could mean that you and your pas­
sengers wou ld not be adequately pro­
tected in an acc ident.
- Safety belt performance depends on cor­
rect installation. Never remove belts
from the vehicle to clean them.
- Do not use chemical cleaning agents,
bleach o r dyes. They have corros ive prop­
erties whi ch weaken the webbing.
- When cleaning your safety belts, inspect
them for damage.
If you discover dam­
age, see your a uthorized Audi dea ler.
- Always read and heed all WARN INGS and
other information
Qpage 194.
l) Use o nly the correct cleaning sol utions. Neve r use gas­
oline or d iese l fuel.
Cleaning and protec tion
Engine compartment
Be especially careful when cleaning the en­
gine compartment.
A lw ays switch o ff the ign it ion before cle an ­
i ng the eng ine
c> ,& .
Plenum pan el
Remove leaves from the plenum panel in front
of the windshield under the engine hood. This
prevents the water drain holes from becoming
blocked, and it prevents debris from enter ing
the vehicle interior through the heating and
vent ilat ion ducts.
Co rro sio n protect ion
The engine compartment and transmission
have been corrosion-protected at the factory.
Good anti -corrosion treatment is very impor­
tant, partic ularly in the winter.
If the vehicle
is frequently driven on salt treated roads, the
entire engine compartment and p lenum panel
should be thoroughly cleaned at the end of
winter and retreated to prevent salt damage.
At the same time, the underside of the vehicle
shou ld be washed as well.
If the engine compartment is cleaned at any
time with grease remov ing solutions
1> , or if
you have the engine washed, the anti-corro­
s ion treatment is almost always removed as
well.
It i s therefo re essentia l to have a long­
lasti ng cor rosion pro tect ion reapplied to all
surfaces, seams, joints and components in the
engine compartment .
A WARNING
Be aware: The engine compartment of any
motor vehicle is a potentially hazardous
area.
- Before work ing in the engine compart­
ment, be sure to read the information
c> page 212.
- Before reaching into the front plenum
panel, a lways remove the ignit ion key.
205
•
•

212 Checking and filling
Checking and filling
Engine hood
Releasing and opening the engine hood
The engine hood is released from inside the
vehicle .
Fig . 173 D river' s side footwe ll: e ngin e hood re lease
lever
F ig. 1 74 Re lease lever u nde r the eng ine hood
Before openin g the engine hood, ma ke s ure
that the windshie ld w ipers are flat against the
windshield. Otherwise, they co uld damage the
pa int on the hood .
... Pull the release lever on the left under the
inst rument panel in the direction of the ar­
row
c;, fig . 173.
... Raise t he hood s lightly r::;, &,
... Press the rocke r swi tc h under the hood up­
ward
c;, fig . 174 . This re leases the catch .
... Ope n the hood.
A WARNING
Hot engi ne co olan t ca n bur n you .
- T o redu ce the r is k o f being burned, never
op en t he ho od if yo u see or hea r ste am
or cool an t esc aping from the engine
c ompartment. Wait unti l no steam or co
olant can be seen or heard before care ­
fu lly opening the hood.
Closing the engine hood
... Pull the hood down until the pressure from
the struts is reduced .
... Let the hood
drop down and latch in p lace .
Do not try to push it shut; it may fail to en­
gage
r::;, &, .
A WARNING
-
A ho od th at is not co mpletely latched
could fly u p an d block your view while driv­
in g.
- Wh en you cl ose the engi ne ho od, ch ec k it
t o make sure the sa fe ty ca tch has prope r­
ly engaged . The hood s hould be flush
wit h the surroun ding vehicle body pa rts .
-If you notice while driv in g that t he hood
is not secured prope rly, sto p at once and
close it.
Working in the engine compartment
Be especially ca reful whenever you work in
the engine compartment.
Whenever you must perform any work in the
engine compartment, for example checking
and filling different fluid s, there is a ri sk of
injury , burns and accidents . To prevent per­
sonal injury always observe the following
WARNINGS. The engine compartment of any
vehicle is a hazardous area
r::;, ,&. .
A WARNING
-To help avo id injury, before yo u check any-
thing unde r the hoo d:
- Turn off the eng ine.
- Remove the ignition key.
- Ap ply the park ing brake .
- Move selector leve r of automatic t rans -
miss io n to "P" (Par k).
- Alway s le t the eng ine cool d own. Ho t
components w ill bur n skin on contact .

214 Checking and filling
Engine compartment
Engine compartment
These are the most important items that you can check.
Fig. 175 Typical layout for containers and eng ine o il filler cap
(D Eng ine o il filler cap ("1::::r.) . . . . . 21 7
@ Jump start point(+) under a cov-
er .. .. .... ... ....... .... ..
225, 260
@ Bra ke fluid reservo ir (0)) . . . . . 221
@ Coolant expansion tank (-L) . . . 220
® Jump start point(-) with hex
head sc rew ..... .......... ..
225, 260
® W indshield/headlight* washer
. (" ') container o ....... . ... .. . 226
The pos ition o f the engine o il fi lling hole
¢ fig . 175 (item @) can differ depending on
the eng ine design.
A WARNING
Before yo u check anything in the engine
compartment, always read and heed all
WARNINGS ¢.&. in Working in the engine
compartment on page 212.
-
Engine oil
· Engine oil specifications
The engine oil used in your Audi needs the
right kind of oil.
The eng ine in your Audi is a sophist icated
power plant that was b uilt to exacting specifi­
cations . Th is engine needs the right k ind of
engi ne oil that meets specifica tions regard ing
quality a nd v iscosity so that it can run
smooth ly and reliab ly. Choosing the rig ht o il
and changing oil within the t ime and mile age
i n tervals prin ted in you r vehicle's Warr anty
&
Maintenance booklet matters a lot more to ­
day tha n it did years ago . Aud i has deve loped
a spec ia l quality standard for engine oil that
will help assure that your vehicle 's engine w ill
get the lubr ication it needs for proper opera-
t ion . ..,_

216 Check ing and filling
temperatures stay below freezing point for
long periods.
Detergent addit ives in the o il w il l make fresh
oil look dark after the eng ine has been run­
ning for a short time . This is norma l and is not
a reason to change the oi l more often than
recommended.
D am age or m alfunc tions du e to lack of
m ainten ance
It
is essential that you change your oil at the
recommended in tervals using only engine o il
that complies with Audi oi l standard
VW 502 00. Your Limited New Vehicle War­
ranty does not cover damage or malfunctions
due to fail ure to fo llow recommended mainte­
nance and use requ irements as set forth in
the Audi Owner's Manual and Warranty
&
Maintenance book let . Your dealer will have to
deny warranty coverage unless you present to
the dea ler proof in the form of Service or Re­
pa ir Orders that all scheduled ma intenance
was performed in a t imely manner.
Eng ine oil consumption
The engine in your vehicle depends on an ade­
quate amount of oil to lubricate and cool all
of its moving parts.
In order to provide effective lubrication and
cool ing of internal engine components, a ll in­
ternal combustion eng ines consume a certa in
amount of oil. O il consumption varies from
engine to engine and may change significantly
over the life of the engine. Typica lly, engines
with a specif ied break-in period (see
¢
page 187) consume more oil during the
break-in period than they consume after oil
consumption has stabilized.
Under norma l conditions, the rate of oil con­
sumption depends on the quality and viscosity
of the oil, the RPM (revolutions per minute) at
which the engine is operated, the ambient
temperature and road condit ions . Further fac­
tors are the amount of oil d ilution from water
condensat ion or fuel residue and the ox ida­
tion level of the oi l. As any engine is subject to wear as mi
leage builds up, the oil consump­
tion may increase over time until replacement
of worn components may become necessary.
With a ll these variab les coming into play, no
standard rate of oil consumption can be es­
tablished or specified. There is no alternative
to regu lar and frequent check ing of the o il lev ­
el, see
Note .
If
the yellow engine oil leve l warning symbo l
I! in the instrument cluster lights up, you
shou ld check the oil leve l as soon as possib le
¢
page 217. Top off the oil at your earliest
convenience ¢
page 217.
A WARNING '"---
Before you check anythi ng in the engine
compartment, always read and heed all
WARNINGS¢
A in Working in the engine
compartment on page 212.
(D Note
Driving w ith an insufficient o il level is like­
ly to cause severe damage to the engine .
(D Tips
-The oil pressu re warn ing display . is
not an indic ator of the oil l evel. Do not
r el y on it . In stea d, check th e oil l eve l in
y our engin e at regular inter val s, pref ­
erably ea ch time you r efu el, and alwa ys
before go ing on a long trip .
-If you have t he impression yo ur engine
consumes excessive amoun ts of o il, we
recommend that you consu lt an author­
ized Aud i dea ler to have the cause of
your concern properly diagnosed. Keep in m ind that the accurate measu rement of
oil consumption requ ires great care and
may take some time. An authorized Aud i
dealer has instructions about how to
measu re oil consumption accurately.
-

Engine cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro ­
te cts the engine from freezing in the winter .
The cooling system is sealed and generally re­
qu ires little attention .
The cooling system has been filled at the fac­
tory with a permanent coolant which does not need to be changed. The coolant consists of a
mixture of water and the manufacturer's gly ­
col-based coolant additive G 13 antifreeze with
anticor ros ion add itives (50% for USA mode ls;
60% for Canadian mode ls). This mixtu re both
assures the ne cessa ry frost prote cti on and
p rotec ts metal components in the engine's
coo ling system from cor ros io n an d scaling. It
a lso raises the boiling point of the coolant.
D o not red uce the con cent ration o f th e coo l­
ant in the summe r by adding plain water .
The
proportion of coolant additive must be at least 50% but not more than 60%
to ma in­
tain antifreeze protection and cooling efficien­
cy. If the coolant frost protect ion is too low,
the coolant cou ld freeze and damage the veh i­
cle heating and eng ine cooling system .
For yea r-round driving, antifreeze is added at
the factory for temperatures down to:
- -3 1 °F (-35°C)USA
- -4 0 ° F ( - 40 °C) Canada.
A WARNING
Before yo u check any thing in the engine
compartment, always read and hee d all
W AR NIN GS
¢ .&. in Working in the engine
compartment on page 212.
(D Note
- Before win ter se ts in, have the coolan t
checked to see if t he coolant ad dit ive i n
your vehicle is suffic ient to meet the cli­
mate cond itions . T hi s is especially imp or­
tant if you live in a regi on whe re the w in­
te r is e xtremely cold. If necessary, in -
Checking and fillin g 219
crease the propo rtion of coo lant add itive
to 60%.
- When adding coolant additive to yo ur
coolin g system , remembe r:
- We reco mmend us ing o nly coola nt ad­
d itive G12++ or G13 for your vehicle .
This coolan t ad ditive is availab le at a u­
thor ized Audi dealers. O ther types of
ant ifree ze can s ignific antly red uce cor­
rosion pro tec tion . The result ing corro­
sion can ca use a loss o f coolan t and se ­
rio us en gine damage.
- D o not add any ty pe of rad iator leak seal­
ant to yo ur vehicle 's engine coolan t.
Adding radiator repair fl uid may adverse ­
ly affect the function and performance of
your cooling system and co uld resu lt in
damage not covered by you r New Ve hicle
Limited War ran ty.
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance.
Fig . 1 78 Eng in e co mpa rtm ent : Cover o n the coo la nt
expans io n t an k
-... ;;; ,; a, m
.. Before yo u check anything in the engine
compartment,
always read and heed all
WARNINGS ¢ & in Working in the engine
compartment on page 212 .
"' Park yo ur vehicle on a lev el su rface .
"' Turn off the ignition .
"' Read t he e ngine coolant level from the
coo lant expan sio n ta nk ¢
fig. 178 ,
¢ fig. 175. With a cold engine, the coolant
level sho uld be between the "MIN " and
"MAX" markings . When the engine is warm,
the level may be slightly above the "MAX"
marking.
Iii>