check engine AUDI TT COUPE 2017 User Guide

Driving
Avoid full acc ele ra tion
You sho uld rare ly travel at the maximum vehicle
speed . High speeds cause a disp roportionately
high increase in fuel consumption, emissions and
traffic noise . Slower driving saves fuel.
Reduce idling time
It pays off to stop the engi ne, for examp le when
at rai lro ad crossings or tr affic lights with longer
red lights . Stopping the engine for 30 -40 sec ­
onds already saves more fuel than the amount of
extra fuel needed to resta rt the engine.
It t akes a very long time in idle to wa rm the en­
g ine up to operating tempe ra ture . Wear and
emissions are especially high in the warm-up
p hase . Therefore, yo u should begin driving im ­
mediately after starting the engine. Avoid high
RPMs while do ing th is.
Have ma intenanc e performed r egularly
By having maintenance performed regular ly on
your vehicle, yo u can help to reduce f uel con­
sumpt ion before you even start to dr ive. The
maintenance condition of your vehicle not only
affects traffic safety and long-term value but a l­
so impacts
fuel consumpt ion .
A poorly maintained engine can lead to fuel con­
sumpt ion that is 10% higher than normal.
A lso check the
oil le vel when refueling . The o il
consumption
depends large ly on the engine load
and speed. It is normal for the oil consumpt ion
of a new eng ine to reach its lowest point only af­
ter a certain amount of use. Therefore, the oil
consumption can o nly be properly judged after
approx imately 3,000 m i (S,000 km) have been
d riven.
Avoid short trips
The engine and exhaust cleaning system must
reach the ir opt imal
operating temperature to ef­
fectively red uce consumption and em iss ions.
A co ld engine uses a disproportionately h igh
amount of fuel. The engine reaches operating
temperature and consumpt io n normalizes only
afte r approximately
four kilometers.
56
(D Note
Do not leave engine idling unattended after
starting. If warning lights sho uld come on to
i ndicate imprope r operation, they would go
unheeded. Extended idling also produces
h eat, which could result in overheating or
other damage to the vehicle o r other proper­
ty.
(D Note
- Have your ve hicle ma intained properly and
in accordance with the service recommenda­
t ions i n your Warranty
& M aintenance book­
let. La ck of prope r mai nte na nce as we ll as
imp roper use o f the ve hicle will impa ir the
func tion of the emission cont ro l sys tem and
cou ld lead to damage.
- Do not alte r or remove any compone nt of
the Emission Contro l System unless ap ­
proved by the man ufacturer.
- Do not alte r or remove any dev ice, such as
heat shields, switches, ig nition w ires,
valves, which are designed to protect your
vehicle's Emission Contro l System and other
important veh icle components.
(D Tips
The cons umption estimates as publishe d by
ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the r oad, which wi ll vary depending upon vehicle
l oad and speed, road a nd wea ther conditions,
tr ip length, etc.

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The display brightness adjusts automatically to
the brightness of the surroundings, both in the information and in the warning stage. In very
dark or very bright surroundings, the automatic
adjustment will set the display to the minimum
or maximum level. In such cases, you may notice no change when adjusting the brightness, or the
change may only be noticeable once the sur­ roundings change.
Adjust the brightness to a level where the display in the information stage will not disrupt your
view ahead .
If you change the brightness, the dis­
play in the exter ior mirror will briefly show the
brightness level in the information stage. The
brightness of the warning stage is linked to the
brightness in the information stage and is adjust­
ed along with the information stage.
(D Tips
- Side assist is not active while you are ma k­
ing the adjustment.
- Your settings are automatically stored and
assigned to the remote control key being
used.
Messages
Applies to: veh icles with Audi side assist
If the side assist switches off automatically, a
message appears in the Infotainment system dis­
play.
@j Audi side assist : cur rently unavailable.
Sensor vision restricted due to surroundings.
See owner's manual
The radar sensors' vision is affected. Do not cover
the area in front of the sensors with bike wheels,
stickers, dirt or other objects . Clean the area in
front of the sensors, if necessary~
page 77,
fig. 80.
@j Audi side assist: currently unavailable.
See owner's manual
Side assist cannot be switched on at this time be­
cause there is a malfunction (for example, the
battery charge level may be too low).
Assist
@j Audi side assist: malfunction! Please
contact Service
The system cannot guarantee that it will detect
vehicles correct ly and it has switched off. The
sensors have been moved or are faulty . Have the
system checked by an authorized Audi dealer or authorized Audi Service Facility soon .
Audi drive select (drive
settings)
Introduction
Applies to : vehicles with Audi drive se lect
Drive select makes it possible to experience dif­
ferent types of vehicle sett ings in one veh icle .
The driver can select from three modes,
Comfort,
Auto
and Dynamic , using the ~t.~, button in the
center console or by using the Infotainment sys­
tem. This allows you to switch between a sporty
and a comfortable driving mode, for example. In
the
Individual mode, the settings can be adjust­
ed to your persona l preferences . This makes it
possible to combine settings such as a sporty en­
gine setting with light steering.
A WARNING
=
Using Audi drive select incorrectly can lead to
collis ions, other accidents and serious inju­
ries .
Description
Applies to: vehicles with Audi drive se lect
The vehicle setup in each mode depends on the
vehicle's features. However, the engine and
steering are always affected .
Engine and automatic transmission
Depending on the mode, the engine and auto­
matic transmission respond more quickly or in a
more ba lanced manner to accelerator pedal
movements.
Adaptive dampers (Audi magnetic ride)*
The adaptive dampers use sensors to record in­
formation regarding steering movements, brak­
ing and acceleration ope rations by the driver,
road surface, driving speed, and load. With d rive .,..
79

Telephone
Telephone Introduction
Applies to: vehicles with telephone
To make phone coils in your vehicle using the
/11/111, connect your cell phone to the /11/111 via
Bluetooth.
Hand sfree
Afte r you have connected you r ce ll phone to the
MMI via Bluetooth , you can use the handsfree
system and operate telephone functions through
your MMI. You can make calls using the antenna
on your cell phone.
A WARNING
-Med ical experts warn that cell phones can
interfere w ith the funct ion of pacemakers .
Always mainta in a m inimum d istance of 20
c ent imeters between the cell phone anten­
na and the pacemaker.
- Do not carry the cell phone in a pocket di­
rectly over the pacemaker when the phone
is switched on.
- Sw itch the cell phone off immediately if
you suspect it may be interfering w ith the
pacemaker.
- Do not use the vo ice recognit ion sys-
tem* c>
page 108 in emergenc ies because
your vo ice may change in stressful situa­
t ions. It may take longe r to dial the number
o r the system may not be able to dial it at
all. Dial the emergency n umbe r manually .
- Switch your cell phone off in areas where
there is a risk of an exp losion . These loca­
tions are not always clea rly mar ked. This
may include gas stations, fuel and chemical
storage facilities or transport vehicles, or lo­ cations where fue l vapors (such as propane
or gaso line vapor in vehicles or bui ld ings),
chemicals or large quantities of dust parti­
cles (such as flour, sawdust or metal) may
be present in the air. This also applies to all
other locations where you would normally
turn yo ur vehicle engine off .
- The demands of traffic requ ire yo ur full at­
tent ion. Always read the chapter c>
page 96,
Traffic safety information.
114
-
(D Tips
- To learn which Bluetooth connections and
wh ich of the funct ions in your cell phone are
supported, check with your cell phone serv­
ice provider or the database for mobile devi­
ces at
www .audiu sa.com /bluetooth .
-The Bluetooth connection range is limited
to inside the vehicle . It can also be affected
by local condit ions and interference with
other devices .
Setup
Connecting a cell phone using Bluetooth
Applies to: vehicles with telephone
Fig. 109 D isp laying the PIN for entering in the cell phone
Requirement
The vehicle must be stationary and the ignition
must be sw itched on.
The Bluetooth funct ion and visibility of the MMI
c>
page 176 and cell phone must be switched on.
The cell phone to be connected must not be ac­
tive ly connected to any othe r Bluetoot h dev ice .
The MMI must not be connected to a cell phone.
Connecting a cell phone
... Select: !MENUI button> Tel ephone > Connect
mob ile d ev ice > Ne xt .
The available Bluetooth
dev ices are shown in the Infotainment system
disp lay .
Or : search for the MMI in your cell
phone through the Bluetooth device search .
... Sele ct and confirm the des ired cell p hone from
the list of d isplayed B luetooth devices.
... The MMI generates a PIN for the connection
setup
c> fig. 109.
... Select and confirm Yes. .,..

Check ing and F illing
Engine compartment
Working in the engine compartment
Special care is required if you are working in the
engine compartment
Fo r wo rk in th e engine compa rtmen t su ch as
c h ec kin g and filli ng flu id s, th ere is a risk of in ­
j u ry, sc aldin g, ac cide nts, a nd b urn s. For this
rea son, foll ow all the warning s and gener al
s a fe ty p recaution s pr ov ided in the f ollow ing in·
f o rm ation . Th e en gine c omp artmen t is a dan ­
ger ous are a.
¢ ,&.
_& WARNING
- T urn the engine off.
- Switch the ign ition off .
- Set the parking brake .
- Place the selector lever in the P pos ition.
- let the engine cool down.
- Never open the hood when there is steam or coolant escaping from the engine compart­
ment, because there is a risk that you could
be burned . Wait until no steam or coolant is
escaping .
- Keep ch ildren away from the engine com­
partment .
- Never spill flu ids on a hot engine. These flu­
ids (such as the freeze protection contained
in the coolant) can catch fire .
- Avoid short circu its in the electrical system,
especially to the battery .
- When working in the engine compartment,
remember that the rad iator fan can sw itch
on even if the ign ition is switched off, which
increases the risk of pe rsonal injury .
- Never open the cap on the coolant expan­ sion tank when the eng ine is warm. The
cooling system is under pressu re .
- To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
large cloth when opening.
- Do not remove the engine cover under any
circumstances. This increases the risk of
burns.
- If tests need to be performed w ith the en­
gine running, there is additional danger d ue
244
to moving components (such as the ribbed
be lt, alternator and rad iator fan) and from
the high voltage ignition system.
- Do not press the acce lerator pedal inadver­
tently if a gear is selected when the vehicle
is stationary and the engine is running. Oth­
erwise, the vehicle will start to move imme ­
diately and this could result in an accident .
- Pay attent ion to the following warnings list­
ed when work on the fuel system or on the
electrical equipment is required.
- Do not smoke .
- Never work near open flames .
- Always have a working fire extinguisher
nearby
- All work on the battery or elect rical system
in your vehicle can result in injuries, chemi­
cal b urns, acc idents or burns . Because of
this, all work must be performed
onl y by an
authorized Audi dealer or authorized Audi
Service Facility.
- To reduce the risk o f electric shock and in ­
jury, never touch the following components
when the engine is running or is being start•
ed:
- Ign ition cable
- Other components in the electronic high -
vo ltage ign ition system
- If you must check or perform work on the
engine while it is running:
- Set the parking brake and place the selec­
tor lever in the P (park) position first .
- Always proceed w ith extreme caution so
that clothing, jewelry or long hair do not
become caught in the radiator fan, fan
belt or other moving components or do
not come into contact with hot compo­
nents. Tie back long hair before beginn ing
work and do not wear clothing that can hang down into the engine .
- Lim it your exposure to exhaust and chemi­
cals to as short a time as possible
¢ .&. .
A WARNING
California Proposition 65 Warning:

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-Engine exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and
reproductive harm. In addition, certain flu­
ids contained in vehicles and certain prod­
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
- Battery posts , terminals and related acces­
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms.
Wash hands after handling.
(D Note
When filling fluids, be sure not to mix the flu­
ids up. Otherwise severe ma lfunctions and en­
gine damage will occur.
@ For the sake of the environment
You shou ld regularly check the ground under
your vehicle in order to detect leaks quickly. If
there are visible spots from oil or other fluids, bring your vehicle to an authorized Audi deal­
er or author ized Audi Service Facility to be
checked.
Opening/closing the hood
The hood is released from inside the vehicle.
Fig. 187 Sect ion from the driver 's side footwell: release
lever
Checking and Filling
Fig. 188 Unlocked hood : lever
Make sure the wiper arms are not raised up from
the windshield. Otherwise the paint could be
damaged .
Opening the engine compartment lid
"With the driver's doo r open, pull the lever be-
low the instrument panel in the direction of the
arrow
q fig. 187.
" Raise the hood slightly ¢.&_ .
" Press the lever
qfig. 188 in the direct ion of the
arrow. This releases the hooks .
"O pen the hood .
Closing the engine compartment lid
" Push the hood down until you override the
force of the struts.
" Let the hood fall lightly into the latch .
Do not
press it in. ¢.&_ .
A WARNING ,..___
-Never open the hood when there is steam or
coo lant escaping from the engine compart ­
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
- For safety reasons, the hood must always be
closed securely while driving. Because of
this, always check the hood after closing it
to make sure it is latched correctly. The
hood is latched if the front corners cannot
be lifted.
- If you notice that the hood is not latched
while you are driving, stop immediately and
close it, because this increases the risk of an
accident .
245

Checking and Filling
Engine compartment overview
The most important check points.
Fig. 189 Typ ical l ayout of the reservoir and the engine o il filler opening
(D Coolant expansion tank (- t) ¢ page 250
@ Engine oil dipstick¢ page 248
® Engine oil filler opening ( @ Engine oil label* with VW standard
¢ page246
® Brake fluid reservoir ((0)) ¢ page 251
@ Jump start point( +) un der a cover, (-) body
ground point ¢page 293
0 Fuse housing ¢ page 289
@ Washer fluid reservoir (W) ¢ page 253
The engine oil dipstick and the engine oil filling
opening ¢ fig. 189 (items@and @) may be lo­
cated in different places depending on the engine
design.
A WARNING
Read and follow all WARNINGS before check­
ing anything in the engine compartment
¢page 244.
246
Engine oil
Engine oil specifications
The engine ail used must conform to exact speci­
fications.
The serv ice interval d isplay in the instrument
cluster of your vehicle will inform you when it is
time for an oil change. We recommend that you
have your oil changed by an authorized Audi Serv­
ice Adv isor.
If you must add oil between oil changes, use an
oil that matches the Audi oi l quality standard
listed on the sticker. The sticker is located at the
front of the eng ine compartment¢ page 246,
fig. 189 .
Audi recommends
~Castrol J@t@fkl!t ?llw..::~c:1£;,'lAl.
Audi recommends Longlife high performance
engine oil from Audi Genuine Parts .,..

Using the proper engine oil is important for the
functionality and s ervice life of the engine. Your
engine was factory-filled with a high -quality oil
which can usually be used throughout the entire
year .
Note
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 Warranty & Maintenance booklet .
- Use only a high quality engine oil that ex-
pressly complies with the Aud i oil quality
standard specified for your vehicle's engine.
Using any o ther oil can cause serious engine
damage.
- Do not mix any lubricants o r other additives
into the engine oil. Doing so can cause en­
gine damage.
@ Tips
If you need to add oil and there is none availa­
ble that meets the Audi o il quality standard
your eng ine requ ires, you may add a total of
no more than 0 .5 qt (0,5 l) of a h igh-quali ty
"synthet ic"oil that meets the following speci ­
fications.
- ACEA A3 or API SM with a v iscosity grade o f
SAE OW-30, SAE SW -30 or SAE SW-40.
- Fo r more information abou t engine o il t ha t
has been approved for your vehicle, please
contact either your authorized Audi dea ler
or Audi Custome r Relat ions at
1 (800) 822-2834 or visit our web site at
www.audiusa.com or www.audican ada.ca .
Engine oil consumption
T he engine in your vehicle depends on an ade­
qua te amoun t of oil to lubricate and cool all of
i t s moving par ts.
In order to provide effective lub rication and coo l­
ing of in te rnal engine components, a ll internal
~ combustion engines consume a cer tain amount
;:::: of oil. Oil consumption varies from engine to en-
" ~ gine and may change sign ificantly over the life of 0
~ the eng ine . Typically, eng ines with a spec ified c:o
Ch eck ing and Filling
break-in period (see ¢ page 55) consume more
oi l during th e break-in period than they consume
after oil consumption has stabilized.
Under normal cond itions, the rate of oil con­
sumption depends on the q uality and viscos ity o f
the oil , the RPM (revolutions per minut e) at
which the engine is operated, the amb ient tem­
perature and road condit ions. Further factors are
the amount of oil dilution from w ater condensa­
tion or fuel resid ue and the oxidation level of the
o il. As any engine is subject to wear as mileage
builds up, the oi l consumption may increase ove r
t ime unt il repla cement of worn components may
become necessary.
With al l these variables coming into play, no
standard rate of o il consumption can be estab­
l ished or spec ified . T he re is no alte rnative to reg­
u la r and fre quent chec king of the o il level , see
Note .
If the yellow engine oil level warning symbo l II
in the instrument cluster lights up , you sho uld
check the o il level as soon as possible
¢
page 248 . Top off the o il at your earliest con­
venience ¢
page 248.
A WARNING
Before you check anything in the engine com­
partment, always read and heed all WARN­
INGS¢
page 244 .
(D Note
Driving with an insufficient oil level is likely to
cause severe damage to the engine.
(D Tips
- The oil pressure warning display. is not
an indicator of the oil le vel. Do not rely on
it . Instead, check the oil level in your en·
gine at regular intervals , preferabl y each
time you refuel, and always befo re going
on a long trip.
- If you have the impression your engine con­
sumes excessive amounts of oil, we recom­
mend that you consult an author ized Audi
dea ler to have the cause of your concern
prope rly diagnosed . Keep in mind that the .,,.
247

Checking and Filling
accurate measurement of oil consumption
requires great care and may take some
time. An author ized Audi dealer has instruc­
tions about how to measure oil consump­
tion accurately.
Checking the engine oil level and adding
engine oil
F ig. 190 O il d ipstick (example): c heck ing the eng ine o il
l evel
Fig . 191 Engine compartment: eng ine oi l fille r opening
cove r
Observe the safety precautions¢.& in Working
in the engine compartment on page 244 .
Check ing th e engin e oil l evel
-Park the vehicle on a level surface .
- Shut the engine off when it is warm. Wait ap-
0 N
-~
"' a, co
proximately two minutes so that the engine oil
can flow back into the oi l pan .
- Open the hood¢
page 245.
-Remove the oi l dipstick¢ page 246, fig. 189,
wipe it off with a clean cloth and insert it all the
way in again.
- Remove the oi l dipstick again and then read the
oi l level ¢
table on page 248.
- Add engine oil if necessary .
248
Area on oil dipstick ¢ fig. 190.
(D If the engine oil leve l is just before the
marking
(D , then engine oil must be added .
See¢ @.
@ Do no
t add engine oil.
Adding engine oil
- Unscrew the cap 't'::71 ¢ fig. 191 for the engine
oil fil ling open ing¢
page 246, fig . 189.
- Carefully add 0 .5 quart (0.5 liter) of the correct
oil ¢
page 246.
-Check the oil level again after two minutes .
- Add a smaller amount of engine oil if necessa-
ry . The marking @¢ fig. 190 must not be ex­
ceeded ¢Cl).
- Screw the engine oil filler cap
't'::71 and slide the
dipstick all the way in .
.&, WARNING
-When adding eng ine oi l, do not let o il d rip
on to hot engine components. Th is increases
t he risk of a fire.
- You must sea l the cap on the oi l filler open­
ing correct ly so that oi l does not leak out
onto the hot engine and exha ust system
when the engine is running, beca use this is
a fire hazard .
- Always clean skin thoroughly if it comes into
contact with engine oi l.
(D Note
- The engine o il level mus t not be under the
marking
(D ¢ fig. 190, because th is increas­
es the risk of engine dam age .
- After add ing engi ne oil, the oil leve l must
not be above the marking @¢
fig. 190, be­
cause this increases the risk of catalytic con­
verter and/or engine damage. Do not start
the engine. Contact an authorized Audi dealer or authorized Audi Service Facility to
have excess engine oil extracted if necessa­
ry.
- Do not mix any add itional lubr icants into
the engine oil. Damage caused by such add i-
t ives is not covered by the warranty.
Ill>

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@ For the sa ke of the env ironment
- Engine oi l should never enter the sewer sys­
tem or come into contact with the ground
under any circumstances.
- Pay attention to legal requirements when
disposing of empty oil containers.
The engine oil consumption may be up to 0.5 quart/600 m iles (0.5 liter/1,000 km), de­
pending on driving style and operating condi­
tions. Consumption may be higher during the
first 3,000 miles (5,000 km). Because of this,
the engine oil level must be checked regular­ ly.
It would be best to check each time you re­
fue l your vehicle and before long dr ives.
Changing the engine oil
We recommend that have your oil changed by an
authorized Audi dealer or a qualified service sta­
tion.
Before you check anyth ing in the eng ine compart­
ment,
alw ays r ea d and heed all WARNINGS Q .&.
in Working in the engine compartment on
page 244.
The engine oil must be changed according to the
intervals specified in your Warranty
& Mainte­
n ance booklet. This is very important because the
l ubri cat ing propert ies of o il diminish gradually
d ur ing normal vehicle use.
Under some c ircumstances the eng ine o il should
be changed more frequently . Change oil more of­
ten if you d rive mostly short distances, ope rate
the vehicle in dusty areas or under predominant ly
stop-and -go traffic conditions, or have your vehi­
cle where temperatures remain below freezing
for extended periods.
Detergent additives in the oil will make fresh oil
l ook da rk 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.
Because of the problem of p roper disposal, along
with the special tools and necessa ry expertise re­
qu ired, we strong ly recommend that you have
Ch eck ing and Filling
your oi l changed by an authorized Audi dealer or
a qualified service station .
If yo u choo se to ch ange yo ur oil your self, please
note the follow ing important info rmation:
A WARNING
=
To reduce the risk of persona l injury if you
must change the engine oil in your vehicle
yourself:
- Wear eye protect ion .
-
-To redu ce the r is k of burns from hot eng ine
oil, let the engine cool down to the touch.
- W hen remov ing the oil d rain plug w ith your
fingers, stay as far away as possib le. Always
keep your forearm parallel to the ground to
he lp prevent hot oil from running down your
arm.
- Drain the oil into a container designed for
this purpose, one la rge enough to hold at
least the tota l amount of oil in yo ur engine.
- Engine oil is poisonous. Keep it well out of
the reach of children.
- Continuous contact with used engine oil is
harmful to your skin. Always protect your
skin by washing oil off thoroughly with soap
and water.
(D Note
Never mix oil additives with your engine oil.
These additives can damage your engine and
adverse ly affect yo ur Audi Limited New Vehi­
cle Warranty.
@ For the sake of the environment
- Before chang ing yo ur oi l, first make sure
you know where you can properly d ispose of
the used oil.
- Always dispose of used engine o il properly.
Do not dump it on garden soil, wooded
areas, into open streams or down sewage
drains.
- Recycle used engine o il by tak ing it to a used
eng ine oil collection fac ility in your area, or
contact a service station .
249

Check ing and F illing
Cooling system
Coolant
The engine coo ling system is filled with a mixture
of pur ified wate r and coolan t addit ive at the fa c­
t ory . T his coo la nt must not be not changed .
The coolant leve l is monito red throug h the . in­
d icator light
c::> page 12. Howeve r, we do recom­
mend occasionally chec king the coo la nt level
manually.
If you must add coolant, use a m ixt ure of wa ter
a nd coo lant add it ive. Mixing the coolant additive
with d istilled water is recommended.
Coolant additive
The coolant additive is made of ant i-freezing and
corros ion protection agents. Only use the fo llow­
ing coolant add it ives. These addit ives may be
m ixed w it h each other.
Coolant additive Specification
G13
TL 774 J
G12++ TL 774 G
The amount of coo lant add itive that needs to be
mixed wit h water depends on the climate where
the vehicle will be operated . If the coolant addi ­
tive percentage is too low, the coolant can free ze
and damage the engine.
Coolant addi- Freeze protec-
tive tion
Warm regions min . 40%, m in. -13 °F
max . 45% (
- 25 °C)
Co ld regions min. 50%, max. -40 °F
max. 55% (-40 °C)
CJ) Note
-Befo re the start of winter, have your author ­
i zed Audi dealer or authorized A udi Service
Fac ility check if the coolant additive in yo ur
vehicle matc hes the percentage approp riate
for the climate . Th is is especially important
whe n driving in co lde r clima tes.
- If the approp riate coolant additive is not
available in an emergency, do no t add any
other addi tive . You cou ld damage the en-
250
gine . If this h appens, on ly use wa ter and re ­
store the correct m ixt ure ratio with t he
specified coo lant ad ditive as soon as poss i­
ble.
- Only refill w ith new coolant .
- Radiator sealant mus t not be mixed wi th
the coolant .
Adding coolant
Fig. 192 En gine co mpar tm ent: coo la nt expans io n ta nk
cove r
-"' -"' •
"" co a,
Observe the safety precautions c::> A in Working
in the engine compartment on page 244 .
Checking the eng ine coolant level
.,. Park your veh icle on a level s urface .
.,. Switch the ignit ion off.
.,. Read the coolant level on the coolant expansion
tank
c::> page 246, fig. 189. The coolant leve l
must be betwee n the markings when the en­
gi ne i n cold . When t he e ng ine is warm it can be
slightly above the uppe r mar king .
Adding coolant
Requirement: there must be a residual amount of
coolant in the expansion ta nk
c::> (D .
.,. Let the engine coo l down.
.,. Place a clot h over the coolant expansion tan k
cap and unscrew the cap counterclockw ise
¢ .&, .
.,. Add coo lant m ixed in the cor rect rat io
c;, page 250 up to t he up per ma rk ing .
.,. Make sure that the fluid level remains stab le.
Add mo re coolan t if necess ary.
.,. Close the cap sec urely .
Coo lant loss usually ind icates there is a lea k. Im-
med iate ly dr ive you r ve hicl e to a n author ized .,.