engine AUDI S4 SEDAN 2013 Manual PDF

212 Fuel supply and filling your fuel tank
Detergent Gasoline, please go to the official
websit e (www.toptiergas .com) .
After an extended period of using inadequate
fuels, built -up carbon deposits can rob your
engine of peak performance.
CD Note
Damage or malfunction due to poor fuel
quality is not covered by the Audi New Ve­
hicle Limited Warranty.
Fuel tank
Fuel filler neck
The fuel filler neck is located on the right rear
side panel behind the fuel fi ller flap.
If the power locking system should fail, you
can st ill open the flap manually -for detailed
instructions see¢
page 214 .
You can find the fuel t ank ca pa city of your ve­
hicle in
Technical Data¢ page 270.
The label on the inside of the fuel filler flap
tells you the correct fuel for your veh icle. For
more inform ation about fuel specifications,
see
¢page 210 .
Your vehicle fuel tank has an on-board refuel­
ling vapor recovery system . This feature helps
to preven t fuel vapors from escaping from the
ta nk and polluting the environment while you
refuel your vehicle . In order to fill the tank
properly while protect ing the env ironment,
p lease follow this refueling procedure careful­
l y .
& WARNING
Under normal operating conditions, never
carry add itiona l fuel containers in your car .
Gas canisters and other containers used to
transport fuel can be dangerous. Such con­
tainers, full or empty, may leak and could
cause a f ire in a collision. If you must
transport fuel to use for your lawn mower,
snow blower, etc ., be very careful and al ­
ways observe local and state laws regard­
ing the use, transportation and storage of such
fuel containers . Make certain the con­
tainer meets industry standards (ANSI/
ASTM F852 -86).
CD Note
Never drive your vehicle until the fue l tank
is completely empty. The irregular supply
of fue l can cause misfir ing. Gasoline could
enter the exhaust system and damage the
catalytic converter .
Refuelling
Fig. 161 Righ t rea r v ehicle s ide: Opening th e fuel filler
flap
Fig . 16 2 Fuel fille r flap wit h at tac hed fuel ca p
When act ivat ing the central locking, the fuel
filler flap is automatically unlocked or locked.
Refuel the vehicle with the ignition turned
off.
Taking the fuel cap off
.,. Turn off the igni tion .
.,. Press the left side of the fuel filler f lap to
open it¢
fig. 161 -arrow -.
.,. Unscrew fue l cap counter-clockwise and
hang it on the fue l filler flap
¢ fig . 162.

Refuelling procedure
"' Inse rt the fue l nozzle from the gasoline
pump into the fue l filler neck as far as it will
go.
"' Se lect a m edium refuelling rate so that the
noz zle switches off automatically when the
tank is full.
Putting the fuel cap back on
"' After filling your tank, twist the fuel cap
clockwise as far as it will go.
"' Close the fuel filler flap.
To avoid fuel spi lling or evaporating from the
fuel tank always close fuel cap properly and
comp letely.
A WARNING
Improper refueling or handling of fuel can
cause fire, explosion and severe burns.
- Fuel is highly flammable and can cause
severe burns and other injuries.
- Failure to shut the engine off while refu ­
eling and/or to insert the pump nozzle
fully into the fuel f iller neck could cause
fuel to spray out of filler neck or to over­
flow. Fuel spray and overflow ing fuel can
cause a fire.
- Never use a cellular telephone wh ile re­
fueling. The electromagnetic radiation
can cause sparks that can ign ite fue l va­
pors and cause a fire.
- Never get back into your vehicle while re­
fueling. If in exceptiona l circumstances
you must get back in your vehicle wh ile
refue ling, make certain that you close
the door and touch me tal to discharge
static electricity before touching the fill­
er nozzle again . Static electricity can
cause sparks that can ignite fuel vapors
released during refueling.
- Never smoke or have an open flame any­
where in or near your vehicle when refu­
eling or filling a portable fuel container.
- For your safety, we strongly recommend
that you do not travel with a portable
fuel container in your vehicle. The con-
Fuel supply and filling your fuel tank 213
tainer, full or empty may leak and could
cause a fire, especially in a crash.
- If, under exceptional circumstances, you
must transport a portable fuel container,
please observe the following:
- Never fill a portable fuel container
while it is anywhere in or on the vehicle
(for example, in the luggage compart­
ment, or on the trunk) . Static electrici­
ty can build up while filling and can ig­
nite fuel vapors causing a fire.
-Always place a portab le fue l container
on the ground before fi lling .
- Always keep the filler nozzle complete­
l y inside the portab le container befo re
and during filling.
- If filling a portable container made of
metal, the fi ller nozzle must always be
in contact with the container. This will
help prevent static electricity from dis­
charging and cause a fire .
- Never spill fuel inside the vehicle or
luggage compartment . Fuel vapors are
highly flammable .
-Always observe loca l and state/provin­
cial laws regarding the use, storage
and transportation of fuel containers .
- Make certain the fuel container meets
industry standards (ANSI/ ASTM
F852-86) .
(D Note
If any fuel has spi lled onto the car, it
should be removed immediately to prevent
damage to the paint.
@ For the sake of the environment
As soon as the correct ly operated nozzle
switches off automat ically for the first
time, the tank is full. Do not try to add
more fuel because fuel may spill out . In
addition , the expansion space in the fuel
tank w ill be filled -causing the fuel to
overflow when it becomes warm and pol­
l ute the environment. •
•

214 Fuel supply and filling your fuel tank
@ Tips
-Running your engine while refuelling
may cause vapors to escape or even
cause fue l to spill out of the tank. This
would then shut off the fuel nozzle be­
fore the tank is full.
- Do not refuel your vehicle w ith the igni­
tion turned on. The fuel gauge may oth­
erwise not ind icate the correct fuel level
after refuell ing.
- The fuel filler flap of your vehicle is not
locked when you lock the vehicle from
the inside.
Unlocking the fuel filler flap by hand
You can open the fuel filler flap by hand if the
power locking system should fail .
Fig. 163 Luggage compartme nt: opening the side tr im
Fig. 164 Luggage compartment: Emerge ncy open ing
of fuel filler flap
The emergency opening mechanism is located
behind the right side trim panel in the lug­
gage compartment.
Opening the side trim
.,. Insert a too l such as a screwdriver
¢
page 251 or the emergency key into the
right side of the upper gap ¢
fig. 163.
.,. Pry upward to release the trim.
Fuel filler door emergency release
.,. Loosen the strap from its bracket and pull
on it ¢
fig. 164. You can now open the fuel
fi ller flap as usual¢
page 212.

Checking and filling Engine hood
Releasing the engine hood
The engine hood is released from inside the
vehicle .
Fig. 165 Dr iver's s ide footwell: engine hood release
lever
"' Open the driver's door .
"' Pull the release lever on the left under the
instrument panel
r=> fig. 165 in the d irection
of the arrow.
The hood pops up slight ly under spring pres­
sure.
Opening the engine hood
.... ~- ---=-
Fig . 166 Re lease lever under the engine hood
Before opening the engine hood, make sure
that the windshie ld wipers are flat against the
windshie ld. Otherwise, they could damage the
paint on the hood.
"' Pull up on the release under the hood
r::!> fig. 166 . This releases the catch.
"' Open the hood all the way
c::> &,.
Checkin g and fillin g 215
A WARNING
Hot engine coolant can burn you.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coo lant escaping from the eng ine
compartment. Wait unt il no steam or
coolant can be seen or heard before care­
fu lly opening the hood.
Closing the engine hood
"' Pull the hood down un til 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
c;, &, .
A WARNING
--
A hood that is not completely latched
could fly up and b lock your view while dr iv­
ing.
- When you close the engine hood, check it
to make sure the safety catch has p roper­
ly engaged. The hood should be flush
with the surround ing vehicle body parts.
- If you notice while driv ing that the hood
is not secured prope rly, stop at once and
close it .
Working in the engine compartment
Be especially careful whenever you work in
the engine compartment.
Whene ver you must perform any wo rk in the
eng ine compartment, for e xample checking
and filling different fluids, th ere is a risk of
injury, burns and accident s. To pr event per­
sonal injury always observe the following
WARNINGS . The engine compartment of an y
vehicle i s a hazardou s area
c;, Lh, .
A WARNING ~
To help avoid injury, befo re yo u check any­
thing under the hood:
- Tu rn off the engi ne.
- Remove the ignition key.

216 Checking and filling
-Apply the parking brake.
- Move selector lever of automatic trans- mission to "P" (Park); put manual trans­
mission in Neutral.
- Always let the engine cool down. Hot
components will burn skin on contact.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment . Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood .
- Keep children away from the engine com­
partment .
- Never spill fluids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxili­ ary electric fan is temperature controlled
and can switch on suddenly.
- Never open the coolant reservoir cap when the engine is still warm. The cool­
ant system is pressurized and hot cool­
ant could spray out .
-Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the coolant reservoir .
- Do not remove the engine cover under
any circumstances. This increases the
risk of burns.
- If work on the fuel system or the electri­
cal system is necessary:
- Always disconnect the battery .
- Never smoke or work near heaters or
open flames. Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and personal in­
jury while the engine is running or being
started, never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repair with the engine running: -
First, fully apply the parking brake,
move selector lever of automatic trans­
mission to "P" (Park); put manual
transmission in Neutral.
- Always use extreme caution to prevent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts
or other moving parts, or from contact­ ing hot parts. Tie back hair before
starting, and do not wear clothing that
will hang or droop into the engine.
- Minimize exposure to emission and
chemical hazards~&, .
.&_ WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de­
fects and reproductive harm. In addition, certain fluids contained in vehicles and
certain products of component wear con­
tain or emit chemicals known to the
State of California to cause cancer and
birth defects or other reproductive harm.
- Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive harms. Wash hands after handling.
(D Note
When adding fluids, always make sure that
they are poured into the proper container
or filler opening, otherwise serious dam­
age to vehicle systems will occur.
@ For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly . If
you see spots from oil or other vehicle flu­ ids, have your vehicle inspected by an au­
thorized Audi dealer.

Checking and fillin g 217
Engine compartment
Engine compartment
These are the most important items that you can check.
Fig. 167 Typical layout for containers and engine oil filler cap
(D Eng ine oi l filler cap ( @ Jump start point(+) under a cov-
er .. .. ... ....... ........ .. 228,263
@ Brake fl uid reservo ir
((0)) . . . . . 224
@ Coolant expansion tank (J-) . . . 223
® Jump start point(-) with hex
head screw ..... .......... .. 228, 263
® Windshie ld/headlight* washer
container
(0) . . . . . . . . . . . . . . 229
The pos ition of the engine o il fi lling hole
¢ fig . 167 (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 215.
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 sophisticated
power p lant that was bu ilt to exacting specifi­
cations . This eng ine needs the right k ind of
engine oil that meets specifications regarding
quality and viscosity so that it can run
smooth ly and reliab ly. Choosing the rig ht o il
and changi ng oil within the t ime and mileage
i n tervals printed in you r vehicle's Warranty
&
Maintenance booklet matters a lot more to ­
day than it did years ago . Audi has developed
a specia 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-
tion. .,..

218 Check ing and filling
Modern engine lubrication has taken a quan­
tum leap in the last few years. Many synthetic
oils ava ilable today provide better engine lu­
brication that can outlast traditional petrole­
um-based oils, making them a smart choice
for use throughout the life of your Audi .
Whether you use synthetic or petroleum ­
based engine oil, the oil that you use must
conform to Audi 's oil quality standard
VW 502 00 to he lp keep your vehicle's engine
running smoothly and help prevent the for­
mat ion of harmfu l deposits, sometimes called
"sludge ", that ove r time can lead to expensive
repairs .
At the time of print ing , engine o ils available in
the U .S . and Canada that meet the exacting
specifications of Audi oi l standard VW 502 00
a re synthetic engine oils. This does not mean,
however, that every synthetic engine oil will
meet Audi oil standard VW 502 00. So always
be sure that you use an approved oil.
To help prevent the format ion of harmful de ­
posits use only oi l with the fo llowing specifi­
cations printed on the oil container :
Audi oil standard VW 502 00
O il container labe ls may carry the specif ica ­
tion s ingly or in comb inat ion with other des ig­
nations and oil qua lity standards .
Visco sity
Engine oils are graded accord ing to their vis­
cosity. The proper viscosity grade oil for your
engine depends on cl imactic or seasonal con­
d itions where you drive. You can use oil with a
viscosity grade of SA E SW40 across all tem ­
pe ratu re ranges for normal driving conditions .
However, if eng ine o il viscos ity grade SA E
SW40 is not available, you can also use viscos­
ity grade SAE SW -30 or SAE OW-40 as long as
it meets Audi o il quality standard VW 502 00
specif ications .
Because engine oil that meets the Audi oil
standard may not be available everywhere
when you need it, we strongly recommend
that you always carry with you an extra quart (
li ter) of oil that exp ress ly con forms to the
VW 502 00 spec ification, in case you have to
top
off the oil while on the road.
Only if the level of the o il is at or be low the
minimum mark -and no oi l that expressly
conforms to Audi oil standard VW 502 00
specifications is available - may you top
off
with a high quality engine o il, preferab ly syn ­
thet ic-based, tha t mee ts ACEA A3 or API SM
specifications, but even then , only in v iscosity
grades SAE SW-40 , SAE SW-30, or SAE
OW-40. However, dur ing the entire time be­
tween oil change inte rva ls , never top
off with
more than a total of 0.5 q t/ liter engine o il
t h at does not con form to Audi oi l specification
vw 502 00.
For more informa tion about eng ine oi l that
has been approved for your veh icle, please
contact e ither your authorized Aud i dealer or
Audi C ustomer Re lations at 1 (800) 822 -2834
or visit our web site at www .audiusa.com or
www.aud icanada .ca. Here you w ill also find a
current list of oils (manufacturers, brand
names e tc.) tha t conform to Audi oil s tanda rd
vw 502 00 .
Changing the engine oil
The eng ine oi l and oil fi lter must be changed
according to the mileage (kilometers) and
time intervals specified in your ve hicle's War­
ranty
& Maintenance booklet. Do not exceed
these intervals -harmful deposits from old
engine oil can reduce engine performance and
can lead to expensive engine repairs .
Changi ng the oil at the recommended inter­
vals is so very important because the lubricat­ ing proper ties of oil decrease gradually during
normal veh icle use . If you are not sure when
you have your oil changed, ask your author­ ized Audi Serv ice Adv isor.
Under some circumstances the engine oil
should even be changed more frequent ly .
Change oil more often if you drive mostly
short distances, operate the ve hicle in dusty
areas o r most ly unde r stop-and-go t raff ic con-
ditions, o r when you use your vehi cle where .,..

temperatures stay below freezing point for l ong periods.
Detergent add itives in the o il w il l make fresh
oil look dark after the eng ine has been run ­
ning fo r a short time . This is norma l and is not
a reason to change the oi l more often than
recommended.
D am ag e or m alfun ction s due to lack of
ma intenanc e
It is essential that you change your oil at the
r ecommended inte rva ls using only engine o il
t hat complies wi th A udi oi l standard
VW 502 00 . Your Limited New Vehicle War ­
ranty does not cover damage or malfunctions
d ue to fa ilure to fo llow recommended mainte­
nance and use requ irements as set forth in
the Audi Owner's Manua l and Warranty
&
Maintenance book let . Your dea ler will have to
deny warranty coverage u nless you present to
the dea ler p roof in the fo rm of Serv ice or Re­
pa ir Orde rs that all s chedu led maintenance
wa s pe rformed in a t imely manner .
Engine oil consumption
The engine in your vehicle dep ends on an ade­
quate amount of oil to lubricate and cool all
of its moving parts.
In o rder to provide effective lubrication and
cool ing of i nternal engine components, a ll in­
ternal comb ustion eng ines consume a cert ain
amo unt of o il. Oil cons umption varies from
engine to engine and may change significantly
over the life of the engine. Typ ica lly, engines
with a specified break-in per iod (see
¢
page 192) consume more oil during the
break-in per iod than they consume after oil
consumption has stabilized .
Under norma l conditions, the rate of oil con ­
sumpt ion depends on the quality and viscosity
of the oil, the RPM (revo lutions per m inute) at
which the engine is operated, the amb ient
temperature and road condit ions. Furthe r fac­
tors ar e the amount of o il d ilution from wate r
condensation or fuel residue and the ox ida­
tion level of the oi l. As any engine is s ubje ct to
Checkin g and fillin g 219
wear as m ileage builds up, the oil consump ­
tion may increase over time until replacement
of worn components may become necessary.
Wi th a ll these variab les coming into p lay, no
standard rate of oil consumpt ion can be es ­
tablished or specified. There is no alternative
to regular and frequent check ing of the o il lev ­
el, see
Note .
If the yellow engine oil leve l warning symbo l
1\1 in the instrument cluster lights up , you
sho uld check the oil leve l as soon as possib le
¢
page 220. Top off the oil at your earliest
convenience ¢
page 220.
A WARNING
Before you check anythi ng i n the engi ne
compartment, always read a nd heed all
WARNINGS¢ .&.
in Working in th e engine
c ompartment on page 215.
(D Note
D riving w ith an insufficient o il level is like­
ly to cause sever e 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 engine at regu lar intervals, pref­
erably ea ch time you refuel, and always
before going on a long trip .
-If you have the impression yo ur engi ne
c ons umes ex ce ss ive amoun ts of o il, we
recommend that you consul t an a uthor­
ized Aud i dea ler to have the cause of
your concern properly d iagnosed. Keep in
mind that the accurate measu rement of
oil consumption requ ires great care and
may take some t ime. An authorized Aud i
dealer has instructions about how to
measu re oil consumption accurately.
-
•
•

220 Checking and filling
Checking the engine oil level
Fig . 168 MMI D isp lay : O il le ve l indic ator
Read oil level
• Park your vehicle so that it is horizontally
level.
.. Shut the engine off when it is at operating
temperature.
.. Switch only the ignition back on.
• Wait approx . two minutes .
> Select: Funct ion button ICARI > Oil level. Or
> Se lect : Funct ion button ICARI > Car systems
control button > Servicing & checks > Oil
level.
• Read the oil leve l in the MMI* Display
c::>fig. 168 . Add eng ine oi l if the bar o f the
oil level indicator is near "Min"
c::> page 220
Depending on the way the vehicle is driven
and the operating conditions, oil consumption
can be up to a 1/2 quart per 600 mi les (0 .5 li­
ter per 1,000 km). Consumption may be high­
er within the first 3,000 mi les (5 ,000 km).
The o il level indicator in the MMI* Display
is only an information display. If the o il
level is too low, a min imum oil warning ap­
pears in the instrument cluster. Add o il
c::> page 220. If the hood has been opened,
the current oil level is shown in the instru­
ment cluster the next time the ign ition is
switched on.
~ Adding engine oil
Fig. 169 En g in e compart ment: Cover on the oil filler
neck
• Before yo u check anything in the engine
compa rtme nt,
always read and heed all
WARNINGS
c::> .A in Working in the engine
compartment on page 215 .
.. Unscrew the cap hole
q fig . 169, qpage 217, fig. 167 .
.. Carefully top off with the appropriate oil in
0.5 liter doses.
.. Check the oil level again after two minutes
qpage220 .
• To p off the o il aga in, if necessary.
• Screw the cap back on the filling hole.
.8_ WARNING
- While topping off, the oil must not come
in contact with hot engine parts - fire
hazard!
- The oil filter cap must be properly se­
cured to prevent oil from being sprayed
on the hot engine and exhaust system
when the engine is running - fire hazard!
- If your skin has come in contact with the
engine oi l, you must subsequently
cleanse it thoroughly.
(D Note
- Check the oil level using the radio or
M Ml*.
If the message Please reduce oil
level
appears, contact your authorized
Audi dealer or other qualified workshop
to have excess oil extracted if necessary.
- Audi does not recommend the use of oil
additives . They may damage the engine
and adversely affect your New Vehicle
Warranty. ..,

@ For the sake of the environment
-Under no circ umstances can the oil come
i n contact w ith the sewage network or
the soil.
- Observe and follow lega l regu lations
when disposing of empty oil containers.
Changing the engine oil
We r ecommend that hove your oil changed by
on authorized Audi dealer or a qualified serv­
ice station .
Before you check anything i n the engine com­
pa rtment,
alwa ys read and heed all WARN­
INGS c:> &. in Working in the engine comport­
men t on page 215.
The engine oil must be changed according to
the intervals specified in your Warranty
&
Maintenance book let . T his is very important
because the l ubricating proper ties of oil di­
minish gradua lly dur ing no rmal veh icle use.
Under some circ umstances the engine o il
should be changed more frequently . Change
oil more often if you drive most ly short dis­
tances, operate the vehicle in dusty areas or
under predominantly stop-and -go traff ic con ­
d itions, or have your ve hicle where tempera­
tures remain below free zing fo r extended pe­
ri ods.
Detergent addi tives in the o il w ill make fresh
oil look dark after the eng ine has been run­
n ing fo r a short time. This is norma l and is not
a reason to change the o il mo re often tha n
recommen ded.
Because of the problem of prope r disposal,
a long w ith the special tools and necessary ex­
p e rti se require d, we strong ly recommend tha t
you have you r o il change d by an author ized
Audi dealer or a q ualified service sta tion.
If you choo se to change your oil yourself ,
please note the following importa nt informa ­
tion :
Checkin g and fillin g 221
A WARNING
To reduce the risk of personal inj ury if you
must change the eng ine oil in your vehicle
yourself:
- Wear eye protect io n.
- To reduce the risk of burns from hot en- gi ne oil, let the engi ne cool down to the
touch.
- When removing the o il dra in p lug with
your fi ngers, stay as far away as possible.
Always keep you r fo rearm parallel to the
grou nd to help p revent hot o il from run­
ning down yo ur arm.
- Dra in the oil into a containe r designed
for this purpose, one la rge enough to
hold at least the tota l am ou nt of oi l in
your eng ine .
- E ngine oil is poisonous . Keep it we ll out
of the rea ch of childre n.
- Con tinuous contact wit h used eng ine o il
is harmful to yo ur ski n. A lways p rote ct
your skin by w ashing oil off tho ro ughly
wit h soap and wate r.
@ Note
N eve r mix oil addi tiv es with yo ur engine
oi l. These additives can damage your e n­
g ine and adver se ly affec t yo u r A udi L imit­
ed New Veh icle Warran ty.
@ For the sake of the environment
- B efore changi ng your oil, first make su re
yo u k now where yo u can prope rly dispose
o f t he used oil.
- Always dispose of used eng ine o il proper ­
ly. Do not dump it on garden soil, wood­
ed are as, into open streams o r down
sewage drains .
- Re cy cl e used engine oil by taking i t to a
used engi ne oil col lect ion facility in your
area, or contact a service station .
•
•