engine oil AUDI S3 2016 User Guide

Intelligent Technology
A WARNING
-New brake pads do not achieve their full
braking effect during the first 250 mi
-
(400 km). They must be "broken in" first .
However, you can compensate for the
slightly reduced braking force by pressing
firmly on the brake pedal. Avoid heavy brak­
ing during the break-in period.
- Only apply the brakes for the purpose of
cleaning the brake system when road and
traffic conditions permit. You must not en­
danger other road users. This increases the
risk of an accident.
- On steep slopes, reduce the speed and se­
lect a lower gear or lower selector lever po­
sition. Drive as little as possible while press­
ing the brake pedal and avoid putting your
left foot on the brake pedal while driving.
This could cause the brakes to overheat and
impair the efficiency of the brakes.
- Do not let the brakes "grind" by always
keeping your foot on the brake pedal. This
can cause the brakes to overheat, increase
wear and increase braking distance unneces­
sarily.
- Certain weather and operating conditions
such as driving through water, driving in heavy rain or driving after washing your ve ­
hicle can impair the effectiveness of the
brakes . In the winter, ice may build up on
the brake pads, rotors and drums. Check
these components by braking carefully. Ap­
plying the brakes carefully several times
dries the brakes and removes ice build-up .
- The efficiency of the brakes can also be im­
paired by driving for long stretches on roads
covered with salt without using the brakes.
You can remove salt deposits from the brake rotors and pads by carefully applying
the brakes several times.
- If the front spoiler is damaged or you install
another spoiler, make sure the front wheel brakes are ventilated properly . Otherwise,
the brake system could overheat, which re­
duces their effectiveness .
- Failure of a brake circuit impairs braking
performance, which increases braking dis -
162
tance. Avoid driving the vehicle and have it
towed it to the nearest authorized Audi
dealer or authorized Audi Service Facility.
- Never let the vehicle roll while the engine is
stopped because this increases the risk of an
accident .
- If the brake booster is not working, you will
have to press much harder on the brake
pedal to compensate for the lack of the
booster.
(D Note
- Never let the brakes "rub" by pressing the
pedal lightly when braking is not really nec­
essary. This causes the brakes to overheat
and increases braking distance and causes
wear .
- Before driving on a long stretch with steep
slopes, reduce your speed and shift to the
next lower gear This makes use of the en­
gine braking effect and relieves the brakes.
If you need to brake additionally, brake in
intervals and not continuously.
(D Tips
- If the brake booster is not working, you
must press the brake pedal with much more
force than normal.
- If you retrofit your vehicle with a front spoil­
er, wheel covers or similar items, make su re
that the air flow to the front wheels is not
interrupted. Otherwise the brake system
can become too hot.
Electromechanical
steering
The electromechanical steering supports the
driver's steering movements.
Power steering adapts electronically based on
the vehicle speed .
The vehicle still has full steering functionality if
the power steering fails or when the engine is
stopped (towing) . To steer, you must apply much
more force than usual. .,.

,....,
N
0 > co ,...., -If you are unable to determine whether or
not a particular fuel blend meets the speci­
ficat ions, ask your service station or its fuel
supplier.
- Do not use fuel for which the contents can­
not be identified.
- Fuel system damage and performance prob­
lems resulting from the use of fue ls diffe r­
ent from those specified are not the respon­
s ibility of Audi and are not covered under
the New Veh icle or the Emiss ion Control
System Warrant ies .
- If you experience a loss of fue l economy or
driveability and pe rformance prob lems due
to the use of one of these fuel blends, we r ecommend that you switch to unblended
fuel.
Gasoline additives
A ma jor concern among many auto manufactur­
ers is carbon deposit build-up ca used by the type
of gasoline yo u use.
A lthough gasoline gr ades d iffer from one manu ­
facturer to another, they have cer tain things in
common . A ll gasoline grades contain substances
that can cause deposits to collect on vita l engine
parts, such as fue l injectors and intake valves. Al­
though most gasoline brands include additives to
keep engine and fuel systems clean, they are not
equally effective .
Aud i recommends using TOP TIER Detergent Gas­
oline. For more informat ion on TOP TIER Dete r­
gent Gasoline, please go to the official website (www.toptiergas .com) .
After an extended period of using inadequate
fuels, carbon deposit build-ups can rob your en­
g ine of peak performance.
(D Note
Damage o r malfunction due to poo r fuel q ual­
ity is not covered by the Aud i New Vehicle
Limited Warranty.
Ch eck ing and Filling
Diesel fuel
Applies to vehicles: wi th diesel engine
Always use U LSD (Ultra Low Sul fur Diesel) No. 2 .
The ULSD No . 2 meets the ASTM D97S.
D iesel f ue l w it h con cen tratio ns of b iod iesel h igh­
er than 5% such as B11, B2 0 or B100 are strictly
prohib ited .
Se rvice station fuel pumps are labe led with the
correct f uel info rmation for easy recog nition by
the user. If the d iesel f uel pump is no t labeled
ask the station operator wha t fu el is being dis ­
pensed before filling up your vehicle .
UL SD No. 2 m ay not be available outside the USA
and Can ada . Be s ure to che ck before traveling to
other countries .
UL SD No . 2 can become thic ke r i n ve ry co ld tem­
peratures, and th is can imp air the engine's s tart ­
ing and running. Depend ing on the season, gas
stations provide ULS D No . 2 that flows be tter in
cold temperatures so that you can continue oper­
at ing your vehicle as usual.
(D Note
- Your vehicle's diese l engine was designed
soley for use w ith ULSD No . 2 . Therefo re,
neve r use gasoline, heating oil, other fuels
or flow imp rovers. These contain substances
that will severely damage the fuel system and the engine . Such damage will not be
covered by yo ur New Vehicle Limi ted War­
ranty .
- If you put a ny amo unt of incorrect fuel in
the fuel tank, do not sta rt the eng ine under
any circumstances. Immed iately contact the
nea res t author ized A udi dealer or author­
ize d Aud i Serv ice Facili ty fo r ass ist ance.
T hese f uels conta in su bstances tha t can se­
verely damage the fuel system an d the en­
gine if the engine is started.
- If the diese l fuel quality is poo r, it may be
necessary to have the wate r drained from
the water sepa rato r in the
fuel filter more
often t han spec ified in the maintenance
schedule. This can help reduce engine mal­
functions <=>
page 24.
229

,....,
N
0 > co ,...., ~ Never put too much motor oil in your engine
¢ page 242, Adding engine oil ~ Never try to push-or tow-start your vehicle.
The cata lytic converter is an efficient "clean -up"
device bui lt into the exhaust system of the vehi­
cle. The catalytic converter burns many of the
pollutants in the exhaust gas before they are re­
leased into the atmosphere.
The exclusive use of unleaded fue l is critica lly im­
portant for the life of the catalytic converter and
proper functioning of the engine.
A WARNING
The temperature of the exhaust system is
high, both when driving and after stopping
the engine.
- Never touch the exhaust tail pipes once they
have become hot. This could result i n burns .
- Do not park or operate the vehicle in areas
where the hot exhaust system may come in
contact with dry grass, brush, fuel spill or
other material which can cause a fire .
-Do not apply additional undercoating or
rustproofing o n or near the exhaust mani­
fold, exhaust pipes, catalytic converte r o r
heat s hields. During dr iving, t he substance
used for under coati ng could ove rheat and
c ause a fire.
(D Note
- Be aware that just one tank filling with
leaded fue l wi ll al ready ser iously degrade
the pe rformance of the ca talytic converter.
- Do not ex ceed the correct eng ine o il level
~page 242.
- Do not d rive until the fuel tank becomes
complete ly empty. The engine co uld m is­
fire. Unburned fuel could also get in to the
exhaust system and this co uld cause t he
cata lytic converter to overheat .
- Do no t sw itch off t he igni tion while t he vehi­
cle is moving.
- Do no t continue to operate your vehicle un­
der these cond it ions, as othe rwise fue l can
reach the catalytic converter. This cou ld re ­
su lt in overheating of the converter, req uir­
i ng its replacement.
Ch eck ing and Filling
-To ass ure eff icient operat ion of the Emis ­
sion Contro l System:
- Have yo ur vehicle maintained p roperly and
i n accordance with the serv ice recommen­
dat ions in yo ur War ranty
& Ma intenance
booklet.
- L ack of proper ma intenance as well as im­
p roper use of the ve hicle will impa ir the
f u nction of t he emission control system
a nd could lead to damage.
~ For the sake of the environment
Eve n when the Em iss ion Control System is op­
era ting properly, t he exhaus t gas can have a
su lf ur -li ke exhaus t gas sme ll under some op­
erating s tates . This depends on the sul fur
content of the fuel being used. Using a differ­
ent brand of fuel may help, or fi lling the tank
with lead-free super grade gasoline.
Diesel particulate filter
Appl ies to vehicles: wit h diesel eng ine
The diese l particu late filter filte rs nearly all of
the soot part icles out of the exhaust. The filter
cleans itself automatically under norma l driving
condit ions. If the filter cannot clean itself (for ex­
amp le, because yo u are o nly dr iving short distan ­
ces), the filte r becomes clogged with soot and
the
II symbol fo r the diese l par ticu late filter il­
l u minates
¢page 23.
A WARNING
-Do not park your veh icle over flammab le
materia ls such as grass or leaves because
the high temperature of the diesel particu ­
late filte r cou ld start a fi re.
-
- Do not app ly an underbody protectant in the
exhaust system area or a fire could start .
233

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.... I.Cl U"I
.... I.Cl ....
to moving components (such as the ribbed belt, alternator and radiator fan) and from
the high-voltage ignition system.
- Never reach into the radiator fan. The elec­
tric auxiliary fan is controlled by tempera­
ture and can switch on suddenly.
- Pay attention to the following warnings list­ ed when work on the fuel system or on the
electrical equipment is required.
- Always d isconnect the vehicle battery
from the vehicle electrical system
- Do not smoke
- Never work near open flames
- Always have a working fire extinguisher nearby
- To reduce the risk of electric shock and in­
jury, never touch the following components when the eng ine is running or is being start­
ed:
- Ignition cable
- Other components in the electronic h igh -
voltage ignition 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 with extreme caution so
that clothing, jewelry or long ha ir do not
become caught in the radiator fan, fan
be lt or other moving components or do
not come into contact with hot compo­
nents. Tie back long hair before beginning
work and do not wear cloth ing that can
hang down into the engine.
- L imit your exposure to exhaust and chemi­
cals to as short a time as possible~&.
_& WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain or
em it chem icals 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
C hecki ng an d Fill in g
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 f lu­
i ds up. Otherwise severe malfunctions and en­
gine damage will occur.
@ For the sa ke of the environment
You should 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 veh icle to an authorized Audi deal­
er or authorized Aud i Serv ice Facility to be
checked.
Opening the hood
The hood is released from the interior .
Fig. 191 Sectio n from t he driver 's side footwell: release
lever
Fig. 192 Rocker switch under the hood
237

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.... I.Cl U"I
.... I.Cl ....
Checking and Filling
Gasoline engine compartment overview
The most important check points .
Fig. 193 Typical location of the rese rvoir , engine oil dipst ick, and engine oil filler opening
CD
@
®
©
®
©
(J)
®
Coolant expansion tank (-L) .... .
Engine oil dipstick ............ .
Engine oil filler opening(~) .. .
Brake fluid reservoir (0))
Battery(+) under a cover ..... . .
Body ground point(-)
Washer fluid reservoir
(O) ..... .
Fuse housing . .... .... ....... .
245
242
242
246
248
251 291
The engine oil filler opening and the dipstick
(items ® and @)
q fig. 193 may be located in a
different area depending on engine version .
_& WARNING
=
Read and follow all WARNINGS before check-
i ng anything in the engine compartment
¢page 236.
(D Tips
Plug-in hybrid drive*: read the information re­
garding the coolant expansion tank under
¢page 108 and the battery(+) under
¢ page 108 .
239

Checking and Filling
Diesel engine compartment overview
The most important check points.
Fig. 194 Typical location of the rese rvoir, engine o il dipstick, and engine oil fille r opening
(D Coolant expansion tank (- L) .. ...
@
®
©
®
®
0
®
Engine oil dipstick ............ .
Engine oil filler opening
(9=:r.) .. .
Brake fluid reservoir ((0))
Battery(+) under a cover
Body ground point( -)
Washer fluid reservoir
(q) ..... .
Fuse housing .. .............. .
245
242
242
246
248
251 291
The engine oil fi ller opening and the dipstick
(items @ and @)¢
fig. 194 may be located in a
different area depending on engine version.
,& WARNING
Read and follow all WARNINGS before check­
ing anything in the engine compartment
¢page 236.
240
Engine oil
Engine oil specifications
The engine oil used must conform to exact speci­
fications.
The service interval display in the instrumen t
cluster of your vehicle will inform you when it is
time for an oi l change. We recommend that you
have your oi l changed by an authorized Audi Serv­
ice Advisor.
If you have to top off the oil between oil changes,
use the Audi oil quality standard specified in the
table .
Audi oil quality standard
Gasoline
VW 502 00 or
engine vw 504 00
Diesel vw 507 00
engine

Using the proper engine oil is important for the
functionality and service life of the engine. Your
engine was factory-filled with a high -quality oil
which can usually be used throughout the entire
yea r.
Note
Your Limited New Vehicle Warranty does not
cover damage or malfunctions d ue to failure
to follow rec ommended maintenance and use
requireme nts as s et forth in the Audi Owner's
Manual and Warranty & Maintenance booklet.
- Use only a high quality engine oi l that ex-
pressly complies with the Au di 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 quart/li ter of a h igh-quality
"synthet ic"oil that meets the following speci ­
fications.
- Vehicles with gasoline eng ine: ACEA A3 o r
API SM with a viscosity grade of SAE OW-30,
SAE SW-30 or SAE SW-40.
- Vehicles with diesel eng ine: ACEA C3 or
API CF with a viscosity grade of SAE OW-30
or SAE SW -30.
- For more information about engine oil that
has been approved for your vehicle, please
contact e ither your authorized Audi dea ler
or Audi Customer Relat ions at
1 (800) 822-2834 or visit our web site at
www.audiusa.com or www.aud icanada.ca.
Engine oil consumption
The engine in your vehicle depends on an ode-
;::: quote amount of oil to lubricate and cool all of
~ its moving parts . co ,....,
~ In order to provide effective lubr ication and cool-,....,
:=: ing of internal engine components, all internal
Ch eck ing and Filling
combustion engines consume a certain amo unt
of oil. Oil consumption varies from engine to en­
gine and may change s ignificantly over the life of
the engine. Typ ically, engines w ith a specified
break-in period (see¢
page 77) consume more
o il during the break-in per iod than they consume
after o il consumption has stab il ized.
Under normal cond itions, the rate of oil con ­
sumption depends on the quality and viscos ity of
the oil, the RPM (revolutions per minute) at
wh ich the engine is operated, the amb ient tem­
perature and road co ndit ions. Further facto rs a re
the amount of oi l di lution from wate r condensa­
tion or fuel resid ue and the oxidat ion level of the
o il. As any engine is subject to wear as mileage
builds up, the oil consumption may increase over
time unti l replacement of worn components may
become necessary.
With a ll these variab les coming into play, no
standard rate of oil consumption can be estab ­
li shed or specified. There is no alternative to reg­
u lar and frequent checking of the oi l level, see
Note .
If the yellow engine oil leve l warning symbo l l!I
in the instrument cluster lights up, you should
check the oi l level as soon as possible
¢
page 242. Top off the o il at your earliest con­
venience ¢
page 242.
A WARNING
-Before you check anyt hing in the engine com-
partment, always read and heed all WARN­
INGS
¢page 236.
(D Note
Driving wit h an insufficient oil level is likely to
cause severe damage to the eng ine.
(D Tips
- The oil pressu re wa rning display. is not
an indicator of the oi l le vel. Do not rely on
i t. In stead , check th e oil level in your en­
gine at regular intervals, preferably each
time you refuel, and alway s before goi ng
on a long trip .
241

Checking and Filling
-If you have the impression your engine con ­
sumes excessive amounts of oil, we recom­
mend that you consult an authorized Aud i
dealer to have the cause of your concern
properly diagnosed. Keep in mind that the
accurate measurement of oil consumpt ion
requires great care and may take some
time. An authorized Audi dealer has instruc­
tions about how to measure oil consump­
tion acc urately.
Checking the engine oil level
Fig . 19 5 Gasol ine eng ine oil dipstick: guide for measuring
the oil level (example)
Fig . 1 96 Diesel engine oil dipstick: guide for meas uring the
oil level (example)
Read and follow the W ARN INGS before check­
i n g anyth ing in the eng ine compartmen t
¢ page 236, Working in the engine compart­
ment.
Determining the oil level
• Park your vehicle on a level surface .
• Let the engine run in id le br iefly whi le it is at
operating temperature and the n shut the e n­
gine off .
• Wai t approx imately two m inutes .
242
• Remove the oil dipstick. Wipe off the oil dip­
stick with a clean cloth and insert it all the way
in aga in .
• Remove the dipstick again and then read the o il
level
¢ fig. 195 or ¢fig. 196.
• Evaluate the oil level¢ table on page 242. Add
eng ine oi l if necessary ¢
page 242.
~ You must add oi l. After adding oil, the level
shou ld be in the
0 area .
® You may add oil. After adding oil, the level
shou ld be in the
Cs) area.
0 Do not add any oil.
@ Do not add any oil. You may con tinue driv-
ing .
0 Do not add any oil. Drive to an authorized
Audi dealer or authorized Audi Service Fa-
cility immediately.
Applies to vehicles with a d iesel eng ine: fuel can
get into the engine o il if you run your vehicle with
biodiesel. This raises the o il level in the eng ine. It
also decreases the quality of the engine oil
¢page 24.
The oil consumption o f the engine may be up to
1/2 qua rt per 600 miles (0.5 l ite r per 1,000 km),
depending on d riving style and cond itions. Con­
sumption may be highe r during the firs t
3,000 miles (5,000 km) . Bec ause of this, the en­
gine o il level must be checked regularly.
It would
be best to check each time you refuel your veh icle
and before long drives .
Adding engine oil~
Fig. 19 7 Eng ine compartment: engine oil filler open ing
cove r
0
N
-N ' "" CD m

,....,
N
0 > co ,...., Read and follow the WARNINGS before check­
ing anything in the engine compartment
c::> page 236, Working in the engine compart­
ment.
.. Turn the engine off.
.. Unscrew the engine oil filler opening cap~
c::>fig.197, c::>page239, fig.193 .
.. Carefully add 0.5 quart (0.5 liter) of the appro­
priate oil
c::> page 240.
.. Check the oil level again after two minutes
c::> page 242, Checking the engine oil level .
.,. Add o il, if necessary.
.. Close the engine oil filler cap and push the dip­
stick all the way in .
A WARNING ,--
- When adding oil, do not let oil drip onto hot
engine components . There could be risk of a
fire.
- You must secure the cap on the oi l filler
opening correctly so that oil does not leak
out onto the hot engine and exhaust system
when the eng ine is running, because this is
a fire hazard.
- Always clean skin thoroughly if it comes into contact with engine oil.
(D Note
-Applies to vehicles with a gasoline engine:
the oil level cannot be above the
0 range
c> page 242, fig. 195 or else yo u risk dam­
aging the catalytic converter and the en­
gine . Contact an authorized Audi dealer or
authorized Audi Serv ice Facility to have ex­
cess oil extracted if necessary .
-Applies to vehicles with a diesel eng ine: the
oil level must not be in the
G) range
c::>page 242, fig. 196-The oil must not be
extracted or else you risk damaging the en­
gine. Drive to an authorized Aud i dealer or
authorized Audi Service Facility immediate­
l y.
- Do not mix any additional l ubricants into
the engine o il. Damage cause by such addi­
tives is not covered by the warranty.
Checking and Filling
{® For the sake of the environment
-Oil shou ld never enter the sewer system or
come into contact with the ground.
- Pay attention to lega l requirements when
disposing of empty oil containers .
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 anything in the engine compart­
ment,
always read and heed all WARNINGS
c::> page 236.
The engine o il must be changed according to the
intervals specified in your Warranty
& Mainte­
nance book let. This is very important because the
lubricating properties of oil diminish gradua lly
during norma l vehicle use.
Under some circumstances the engine oil shou ld
be changed more frequent ly. Change oil more of­
ten if you drive mostly short distances, operate
the vehicle in dusty areas or under predominantly
stop-and-go traff ic conditions, or have your vehi­
cle where temperatures remain below freezing
for extended periods.
Detergent additives in the oi l will make fresh oil
look dark after the engine has been running for a
short time. This is normal and is not a reason to
change the oil more often than recommended.
Because of the problem of proper disposal, along
with the special tools and necessary expertise re­
quired, we strongly recommend that you have
your o il changed by an authorized
Audi dealer or
a qualified service stat ion.
If you choose to change your oil yourself, please
note the following important information:
A WARNING ,-~
To reduce the risk of personal injury if you
must change the engine oil in your vehicle
yourself:
- Wear eye protection.
243

Checking and Filling
-To reduce the risk of burns from hot engine
oil, let the engine cool down to the touch.
- When removing the oil drain plug with your
fingers, stay as far away as possible. Always
keep your forearm parallel to the ground to
help prevent hot oil from running down your
arm.
- Drain the oil into a container designed for
this purpose, one large enough to hold at least the total amount of oil in your 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 .
CD Note
Never mix oil additives with your engine oil.
These additives can damage your engine and
adversely affect your Audi Limited New Vehi­
cle Warranty.
@ For the sake of the environment
-Before changing your oil, first make sure
you know where you can properly dispose of
the used oil.
- Always dispose of used engine oil properly.
Do not dump it on garden soil, wooded
areas, into open streams or down sewage
drains.
- Recycle used engine oil by taking it to a used
engine oil collection facility in your area, or
contact a service station.
Cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro­ tects the engine from freezing in the winter.
The cooling system is sealed and generally re­
quires little attention.
The cooling system has been filled at the factory
with a permanent coolant which does not need to
be changed. The coolant consists of a mixture of
244
specially conditioned water and the manufactur­
er's glycol-based coolant additive Gl3 antifreeze
with anticorrosion additives (50% for USA mod­ els; 60% for Canadian models). This mixture
both assures the necessary frost protection and
protects metal components in the engine's cool­
ing system from corrosion and scaling. It also
raises the boiling point of the coolant.
Do not reduce the concentration of the coolant in
the summer by adding plain water.
The propor­
tion of coolant additive must be at least 50%
but not more than 60%
to maintain antifreeze
protection and cooling efficiency. If the coolant
frost protection is too low, the coolant could
freeze and damage the vehicle heating and en­
gine cooling system.
For year-round driving, antifreeze is added at the
factory for temperatures down to:
--31°F(-35°C)USA
- - 40 °F ( - 40 °C) Canada.
If you must add coolant, use a mixture of water
and coolant additive. Mixing the coolant additive
with distilled water is recommended.
A WARNING
Before you check anything in the engine com­
partment, always read and heed all WARN­
INGS
~ page 236.
CD Note
- Before winter sets in, have the coolant
checked to see if the coolant additive in your
vehicle is sufficient to meet the climate con­ ditions. This is especially important if you
live in a region where the winter is extreme­
ly cold.
If necessary, increase the proportion
of coolant additive to 60%.
- When adding coolant additive to your cool­
ing system, remember:
- We recommend using only coolant addi­
tive Gl2++ or G13 (check the label) for
your vehicle. This coolant additive is avail­
able at authorized Audi dealers. Other
types of antifreeze can significantly re­
duce corrosion protection. The resulting