2015 AUDI S3 check engine

38 Openin g and clo sing
• To open the luggage compartment lid, press
and hold the~ button © for at least one
second .
• To tr igger the alarm , press the red
iPANICI
button @. The vehicle horn and emergency
flashers turn on .
• To turn off the alarm, press the red
IPANICI
button @again .
If the vehicle is unlocked and a door or the luggage compartment lid are not opened
within 45 seconds, the vehicle locks aga in au­
tomatically. This feature prevents the vehicle
from being ac cidentally left un locked over a
l ong period of time. This does not apply if you
p ress the
i""' I but ton © button for at least one
second.
F o r vehi cles with
sa fet y c entr al loc king (selec­
tive unlocking) ¢
page 41, only the driver's
door and the fue l filler door are opened by
pressing the~ button @ once, and the ent ire
vehicle unlocks when the button is pressed
twice.
A WARNING
Read and following all WARNINGS. ¢ Lo_ in
Key set on page 35
@ Tips
- Only use the remote control key or con­
venience key w ith in v iew of the veh icle.
- Do not use the remote control when you
are inside the vehicle. Otherwise, you
could unintentionally lock the veh icle. If
you then tried to start the engine or
open a door, the a la rm would be trig­
gered. If this happens, press the un lock
button@.
- The vehicle can on ly be locked whe n the
se lector lever is in the P posit ion .
- Only use the panic function in an emer­
gency .
- For information on add itiona l remote
control key o r convenience key functions,
r efer to¢
page 43, Convenience open­
ing/closing.
Locking and unlocking with the
convenience key
Applies to vehicles: with convenience key
The front doors and the luggage compart­
ment lid can be unlocked and locked without using the remote control key.
F ig . 24 Driver 's doo r: locking the vehicle w it h the co n­
ven ience key
0 0
I
• To unlock the door automatically, grasp the
driver's or front passenger's door handle
¢ fig. 24.
• To open the door, pull the door hand le .
• To unlock or open the luggage compartment
lid, press the handle in the luggage com­
partment lid
¢ page 42, fig. 28 .
• To lock the veh icle, br ing the selector lever
into the P position, close the door and touch
the sensor on the dr iver 's door handle
one
time. Do not hold the door hand le while do­
ing this.
Only the front doors and luggage compart­
ment lid can be unlocked or locked . The re­
mote control key must be w ith in a range of
abo ut 5
ft (1.5 m) from the door o r the rear
li d. It ma kes no d ifference whethe r the re­
mote control key is in your jacket pocket,
purse or briefcase.
If you ho ld the doo r hand le wh ile loc king, th is
c a n p revent the lo ck ing f unct ion.
The door cannot be opened for a brief period directly after locking it . Th is allows you the
oppo rtun ity to check that the driver's door is
locked.
The sett ings in the MMI specify if the entire
vehicle or one of the doors is unlocked when
unlocking the vehicle ¢
page 40.

M N
0 > co ,...., \!) 1.1'1
M 1.1'1 ,....,
moment after re leasi ng the b rake peda l. Dur­
i n g this time, you can easily be gin to move
your veh icle.
A WARNING
- The intelligent technology of Hill Hold
cannot overcome the lim itations im­
posed by natural phys ica l laws . The in­
c reased comfort offered by Hill Hold
sho uld not cause you to ta ke safety risks .
- Hill Hold cannot hold the veh icle in all
hill start situat ions (for examp le, if the
ground is slippery or icy).
- If you do not begin movi ng immediately
after releasing the b rake pedal, the vehi­
cl e could begin to roll backwa rd under
c ertai n circumst ances. Press the bra ke
peda l or set the par king b rake immed i­
ately .
-If the engine "sta lls", p ress the brake
peda l or set the par king b rake immedi ­
ately .
- Star ting on in cli nes in s top-and-go traf­
fic: To hel p prevent the vehicle from roll ­
ing back when starting, press and hold
the brake pedal for several seconds when
the vehicle is stationary.
@ Tips
You can find out if your vehicle is equipped
wit h Hill Hold by check ing at an authorized
Aud i dea le r or q ualified repa ir facility.
Speed warning system
Introduction
The speed warning system helps you to stay
under a specified maximum speed.
-
The speed warning system warns you if you
are exceeding the max imum speed that you
h ave set . Yo u will hea r a warn ing tone when
your speed exceeds the stored va lue by ap­
p rox imately 3 mph (3 km/ h). The . (USA
models)/ . (Canad a mo dels) indicator l igh t
and the message
Speed limit e xceeded! ap­
pear in the instr ument cluster disp lay at the
same time. The./. indicator light turns
Drivin g 83
off when the speed dec reases be low the stor ­
ed maximum speed .
Setting a t hreshold is recommended if you
would like to be rem inded when you reach a
ce rtain maxim um speed. S ituations whe re you
may want to do so incl ude driving in a co untry
with a genera l speed limit o r if the re is a
specified maximum speed for winter tires .
(D Tips
Regardless of the speed warning system,
you should a lways monitor your speed us­
i ng the speedometer and make sure yo u
are follow ing the lega l speed limit .
Setting the threshold
You can set, change and delete the threshold
in the MMI.
.,.. Select: the
I MENU I button > Car > Systems*
cont ro l button > Driver assistance > Speed
warning .
You can set any threshold between 20 mph
(30 km/h) and 150 mph (240 km/h) . Settings
can each be adj usted in increments of 6 mph
(10 km/h).
Cruise control system
Description
Applies to veh icles: w ith c ruise control system
The cru ise con trol system makes it poss ib le to
drive at a cons tant speed start ing at 15 mph
(20 km/h).
T he speed is kept const ant by modifying en­
gine powe r or throug h an ac tive brake inte r­
vention .
.&_ WARNING
-Always pay attention to the t raffic
around you when the cruise contro l is in
operation. You are always responsible for
your speed and the distance between
your veh icle and other vehicles .
llll-
•

....,
N
ci > co
rl I.O
"' ....,
"' rl
position longer than approximately 2 seconds
when the brake pedal is not pressed.
Interlock button
The interlock button in the selector lever han­
dle prevents you from moving the selector
l eve r inadvertently while in some selecto r lev­
er positions. The positions that require the in­
terlock button to be pressed are marked in
color in the illustration
c::;, fig. 97.
Ignition key safety interlock*
You can only remove the key from the ignition
after switching the ignition off if the se lector
lever is in the P position. The selector lever
will be locked in the P position as long as the
key is not in the ignition .
A WARNING
Read and following all WARNINGS. c::;, &. in
Selector lever positions on page 109.
{D) Tips
- If the selector lever does not engage,
there is a malfunction. The engine is dis­
abled to prevent the vehicle from driving
off unintentionally . Press the brake pedal
briefly to allow the selector lever lock to
engage again.
- If the vehicle does not move forward or
i n reverse even though a drive position is
se lected, proceed as follows:
- > If the veh icle does not move in the de­
sired direction, the system may not have
engaged the dr ive position correctly.
Press the brake pedal and select the
drive position again.
- >If the vehicle still does not move in the
desired direction, there is a system mal­
function. See an authorized Aud i dea ler
or authorized Audi Service Facility for as ­
sistance to have the system checked.
Autom atic transm ission 111
Driving tips
Applies to veh icles: w it h S tronic transm iss ion
T he transmission shifts up and down auto­
matically when in the driving gears.
Fig. 98 Section of the center co nsole: Selector lever
w ith interlock b utto n
The engine will only be able start when these­
lector lever is in the P or N positions. At low
temperatures (below 14 °F (-10 °C)), the en ­
gine can only be started when the selector
lever is in the P position.
Starting from a stop
.,. Press and hold the brake pedal.
.,. Press and hold the interlock button in the
selector lever handle, select the desired se ­
lector lever position such as D
c::;, page 109
and re lease the lock button.
.,. Wait a moment until the transmission
shifts . Yo u will notice a slight movement
when the gear engages.
... Release the brake peda l and press the accel ­
erator pedal
c::;, .&_ .
Stopping temporarily
.,. Keep the vehicle stationary using the brak­
ing pedal, for example at traffic lights.
.,. Do not press the accelerator peda l when do­
ing this.
.,. To prevent the vehicle from ro lling when you
start driving, set the parking brake when
stopping on steep inclines
c::;, .&_ .
.,. The parking brake will release automat ically
and the vehicle will start moving once you
press the acce lerator pedal. Requ irement:
The driver's safety belt must fastened and
the driver's door must be closed.
IJll,,

200 Driving and the environment
Vehicles use the most fuel when they are ac­
celerati ng. If you anticipate what is going to
happen next, you will need to brake less and,
thus, accelerate less. let the vehicle coast
whenever poss ible -for example when you see
that the next traffic light is red.
Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage.
.. Try and keep well be low your car's max imum
speed.
Accelerating gently reduces fuel consump­
tion, engine wear, and does not disturb the
environment. F ue l consumption, exhaust emissions and en ­
gine noise increase disproportionately at hig h
speeds . If you drive at approximately three
quarters of top speed, fue l consumption will
be reduced by one half. Never dr ive faster
tha n the posted speed limit and weather con­
d itions permit.
Reducing unnecessary idling
Even when your car is just idling it burns up
fuel.
.. Sh ut the engine off when you are not dr iving
the vehicle.
.. Do not warm up the vehicle by letting the
engine run at idle.
It is efficient to switc h off the engine when
stopped at railroad crossings and long red
lights. Turning the engine off for just 30-40
seconds saves mo re fuel than is burned by
start ing the eng in e again.
It takes a long time for the engine to warm up
fu lly when it is running at idle. However, wear
and nox ious em issions are especially high
when the engine is warming up. So you should
d rive away as soon as you sta rt the eng ine and
avoid ru nning a t high RPM wh ile the engine is
still warming up .
(D Note
Do not leave engine i dling unattended af­
ter start ing. If wa rning lights sho uld come
on to indicate improper operation, they
would go unheeded. Extended idling also
produces heat , w hich could result in over­
hea ting o r othe r damage to the veh icle or
othe r property.
Regular maintenance
A badly tuned engine unnecessarily wastes a
lot of fuel.
.. Have your ve hicle serviced at regu lar inter-
vals.
Having your veh icle regu larly serviced by an
authorized Aud i dealer helps to ensure that it
runs properly and econom ica lly. The cond it io n
of your veh icle not on ly affects its safety and
ability to ho ld its va lue, i t also affects
fuel
c onsumption .
Check your oil each t ime you fill your tank.
The amount of oi l used is re lated to engine
l oad and speed.
It is normal for the oil consump tion of a new
engine to reach its lowest value after a certain
mileage has been driven .
You m ust drive your ve hicle abou t 3,000 m iles
(5,000 kilometers) before you can properly
assess oil consumpt ion .
T his also ap plies to fue l consumption and en ­
gine o utp ut.
(D Note
- Have your veh icle ma inta in ed properly
and i n acco rdance with the service rec­
ommendations in you r W arranty
& Main­
t enance boo klet. l ack of proper ma inte ­
nance as well as im proper use of the ve­
hicle will impair the function of the
em iss ion cont ro l system and cou ld lead
to damage.

202 Trailer towing
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, always fo llow the operating
and drivi ng i nstr uctions 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 mu st be
mounted secure ly on the ve hicle's chassis at a
technically sound location . Use only a trailer
h itch with a removab le ball mount. A lways
check with the tr ailer hitch manu fac tur er to
make sure tha t you are using t he cor rect
hitch.
Do not us e a bumper hitch .
The hitch must be installed in such a way t hat
it does not interfe re with t he impact-absorb­
ing bumper syst em . No mod ifications should
be made to the vehi cle exhaust and brake sys ­
tems . From time to time, check th at a ll hit ch
mo unt ing bo lts remain secure ly fastened.
When you are not towing a trail er, remove the
tra iler hitch ba ll mount. This prevents the
hi tch from causing d amage sho uld your ve hi­
cle be str uck from be hind
¢ A .
Trailer brakes
If you r tra ile r is eq uipped w ith a braking sys­
tem, check to be su re that it conforms to a ll
r egulat ions . T
he trailer hyd raulic brake system mus t not be
direct ly connected to the vehicle's hydraulic
brake system .
Safety chains
Always use s afety chains be tween your ve hicle
and t he tra ile r.
Trailer lights
Tra ile r li ghts must meet all regulations. Be
su re to c hec k w ith your Audi dea le r fo r cor rect
wiring, swi tches and relays.
Mirrors
If you are unable to see the traffic behind you
u sing the regular o utside m irrors, then you
must insta ll ext ended mirro rs . It is important
t h at you
always have clea r vis io n to the rea r.
,8. WARNING
-
Afte r removing t he trailer hit ch, d o no t
s tore it in yo ur vehicle . In case of sudden
br aking, t he h itch cou ld fly forward an d in­
j ur e you or yo ur passengers .
Operating instructions
Maximum traile r weight
A trai le r fo r you r vehicle is limited to a typi cal
class 1 or class 2 trai le r.
Trailer load distribution
B e sure the load in the t ra ile r is held secure ly
i n p lace to p reven t it from shift ing forw ard,
backw ard or sideways.
Never allow a passenger to ride in a trailer
¢ A in Driving instru ctions on page 203.
Engine cooling system
Towing a trailer makes the engine work hard­
er . It is impo rtant that the cooling system 's
performance is up to the additional load .
Make su re that the coo ling system has enough
fl uid .
Tire pressure
When towing a trailer, inflate the tires of your
vehicle to t he cold tire pressure listed under
ll>

M N
0 > co ,...., \!) 1.1'1
M 1.1'1 ,....,
"Full load" on the label located on the driver's
side B-pillar (visible when the door is open).
Inflate trailer t ires to tra iler and t ire manufac­
turers' specifications.
Lights
Check to make sure both vehicle and trailer
lights are working properly.
Safety chains
Be sure tra iler safety cha ins are properly con­
nected from the trailer to the hitch on the ve­
hicle. Leave enough slack in the chains to per­
mit turning corners. When you install safety
chains, make su re they wi ll not drag on the
road when you are driving.
The chains should cross under the tra ile r
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 poss ible handling of vehicle
and traile r, p lease note the following:
~ Do not tow a loaded tra iler when your car it­
self is not 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.
Weight distribution
Towing a loaded trai ler with an empty car re­
sults in a highly unstable distribution of
weight. If this cannot be avoided, drive at very
low speeds only to avoid the risk of losing
steering control.
A "balanced" rig is easier to operate and con ­
trol. This means that the tow vehicle should be loaded to the extent poss ible and permiss i­
ble, wh ile keeping the trailer as light as poss i­
ble under the circumstances . Whenever possi-
Trailer towing 203
ble, transfer some cargo to the luggage com­
partment of the tow vehicle while observing
tongue load requirements and vehicle load ing
considerations.
Speed
T he higher the speed, the mo re difficult it be­
comes for the driver to control the rig. Do not
drive at the maximum permissib le speed. Re­
duce your speed even more if load, weather or
wind conditions are unfavorable -particularly
when going downhill.
Reduce veh icle speed
immediately if the trail­
er shows the slightest sign of swaying .
Do not
try to stop the swaying by accelerating.
Observe speed limits . In some areas, speeds
for vehicles towing trai lers are lower than for
regular vehicles .
Always apply brakes early. When driving
downhi ll, shift into a lower gear to use the en ­
gine braking effect to s low the vehicle. Use of
the brakes alone can cause them to overheat
and fail.
Coolant temperature
The coolant temperatu re gauge <=> page 12
must be observed carefu lly. The coolant tem ­
perature can increase if you drive on long in­
clines in a low gear at high engine speeds. Re­
duce your speed immediately if the LEDs in
the top part of the display turn on.
For more information about indicator lights,
refer to .<=>
page 20.
A WARNING
Anyone not properly restrained in a mov­
ing vehicle is at a much greater risk in an
accident. Never let anyone ride in your car
who is not properly wearing the restraints
provided by Audi.
Trailer towing tips
Important to know
Your vehicle handles d ifferently when towing
a trailer because of the additional weight and ..,.
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210 Checking and Filling
Checking and Filling
Gasoline
Fuel supply
Applies to vehicles: with gasoline engine
Using the right fuel helps keep the environ­
ment clean and prevents engine damage .
Fuel recommendation
The fuel recommended for your vehicle is un­
leaded premium
grade gasoline . Audi recom­
mends using TOP TIER Detergent Gasoline
with a minimum octane rating of91 AKI (95
RON) . For more information on TOP TIER De ­
tergent Gasol ine, please go to the official
website (www .toptiergas.com).
The recommended gasoline octane rating for
your engine can also be found on a label locat­
ed on the ins ide of the fuel filler flap. This rat­
ing may be specified as AKI or RON .
Your vehicle may also be operated using un­
leaded regular gasoline with a minimum oc ­
tane rating of 87 AKI/91 RON . However, using
87 AKI/91 RON octane fuel w ill slightly re­
duce engine performance.
Use unleaded gasoline only. Unleaded gaso­
line is available throughout the USA, Canada,
and in most European countries. We recom­
mend that you do not take your vehicle to
areas or countries where unleaded gasoline
may not be available.
For more information on refueling your vehi­
cle, see
~ page 212.
Octane rating
Octane rating ind icates a gasoline's ability to
res ist engine damaging "knock" caused by
premature ign ition and detonation . Therefore,
buying the correct grade of gasoline is very
important to help prevent possible engine
damage and a loss of engine performance.
Gasoline most commonly used in the United
States and Canada has the following octane
r atings that can usually be found on the filler
pump : - Premium Grade: 91
-96 AKI
- Regular Grade: 87 -90 AKI
Explanation of the abbreviations:
AKI= Anti Knock Index= (R+M)/2 = (RON
+MON)/2
RON= Research Octane Number
MON = Motor Octane Number .
@ Note
-Do not use any fuel w ith octane ratings
lower than 87 AKI or 91 RON otherwise
expensive engine damage w ill occur.
- Do
not use leaded gasoline. The use of
leaded gasoline will severely damage
your vehicle's catalytic converter and its
ability to control exhaust emissions.
Blended gasoline
Applies to vehicles: with gasoline engine
Use of gasoline containing alcohol or
MTBE (methyl tertiary butyl ether)
You may use unleaded gasoline blended with
alcohol or MTBE (commonly referred to as
oxygenates) if the blended mixture meets the
following criteria:
Blend of gasoline methanol (wood alcohol or
methyl alcohol)
-Anti-knock index must be 87 AK I or higher.
- Blend must contain no more than 3% meth-
anol.
- Blend must contain more than 2% co-sol-
vents.
Blend of gasoline and ethanol (grain alcohol
or ethyl alcohol)
-Anti-knock index must be 87 AKI or higher.
- Blend must not contain more than 15%
ethanol.
Blend of gasoline and MTBE
-Anti-knoc k index must be 87 AK I or higher.
- Blend must contain not more than 15%
MTBE.
Seasonally adjusted gasoline

Many gasoline grades are blended to perform
especially well for winter or summer driving. During seasonal change-over, we suggest that
you fill up at busy gas stations where the sea­ sonal adjustment is more likely to be made in
time.
Q;) Note
- Methanol fuels which do not meet these requirements may cause corrosion and
damage to plastic and rubber compo­ nents in the fuel system .
- Do not use fuels that fail to meet the
specified criteria in this chapter .
- If you are unable to determine whether
or not a particular fuel blend meets the
specificat ions, ask your service station or
i ts fuel supp lier.
- Do not use fuel for which the contents cannot be identified.
- Fuel system damage and performance
problems resulting from the use of fuels
different from those specified are not
the responsibility of Audi and are not
covered under the New Vehicle or the
Emission Control System Warranties.
- If you experience a loss of fuel economy
or driveability and performance prob­
lems due to the use of one of these fuel
blends, we recommend that you switch
to unblended fuel.
Gasoline additives
A major concern among many auto manufac­
turers is carbon deposit build-up caused by
the type of gasoline you use .
Although gasoline grades differ from one manufacturer to another, they have certain
things in common. All gasoline grades contain substances that can cause deposits to collect
on vital engine parts, such as fuel injectors
and intake valves. Although most gasoline
brands include additives to keep engine and
M
N fuel systems clean, they are not equally effec-o
iii tive. ,...., \!) ..,.,
M ..,., ,....,
Checking and Filling 211
Audi recommends using TOP TIER Detergent
Gasoline . For more information on TOP TIER
Detergent 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 engine of peak performance.
CJ) Note
Damage or malfunction due to poor fuel
quality is not covered by the Audi New Ve­
hicle Limited Warranty.
Diesel fuel
App lies to vehicles : wit h diese l eng ine
Always use ULSD (Ultra Low Sulfur Diesel)
No. 2 . The ULSD No. 2 meets the ASTM D975.
Diesel fuel with concentrations of biodiesel
higher than 5
% such as B11, B2O or B1OO are
strictly prohibited.
Service station fuel pumps are labeled with
the correct fuel information for easy recogni­
tion by the user.
If the diesel fuel pump is not
labeled ask the station operator what fuel is
being dispensed before filling up your vehicle.
ULSD No. 2 may not be available outside the
USA and Canada. Be sure to check before trav­
eling to other countries.
ULSD No. 2 can become thicker in very cold
temperatures, and this can impair the en­
gine's starting and running. Depending on the
season, gas stations provide ULSD No . 2 that
flows better in cold temperatures so that you
can continue operating your vehicle as usual.
(D Note
- Your vehicle's diesel engine was de­
signed solely for use with ULSD No. 2.
Therefore, never use gasoline, heating
oil, other fuels or flow improvers. These
contain substances that will severely
damage the fuel system and the engine.
Such damage will not be covered by your
New Vehicle Limited Warranty.
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