2013 AUDI RS5 CABRIOLET check engine light

Checking and fillin g 209
Engine compartment
Engine compartment
These are the most important items that you can check.
Fig. 177 Typical layout for containers and engine oil filler cap
(D Coolant expansion tank (- L) . . . 214
@ Jump start point(+) under a cov-
er .. .. ... ....... ........ ..
219, 256
@ Engine o il filler cap ( @ Jump start point(-) with hex
head screw ............ .... .
219,256
© Brake flu id reservoi r((())) . . . . . 216
® W indshie ld/headlight* washer
container
(0) . . . . . . . . . . . . . . 221
A WARNING
Before yo u check anything in the engine
compartment, always read and heed all
WARNINGS
q .& in Working in the engine
compartment on page 207.
-
Engine oil
Engine oil specifications
The engine oil used in your Audi needs the
right kind of oil .
The engine 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.

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 with A udi oi l standard
VW 502 00 . Your Limited New Vehicle War ­
ranty does not cover damage or malfunctions
due to fa ilure to fo llow recommended mainte­
nance and use requ irements as set forth in
the Audi Owner's Manual and Warranty
&
Maintenance book let . Your dealer will have to
deny warranty coverage 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
was pe rformed in a t imely manner .
Engine oil consumption
The engine in your vehicle depends on an ade­
quate amount of oil to lubricate and cool all
of its moving parts.
In o rder to provide effective lubrication and
cool ing of internal engine components, a ll in­
ternal combustion eng ines consume a certa in
amo unt of o il. Oil consumption varies from
engine to engine and may change significantly
over the life of the engine. Typ ica lly, engines
with a specified break-in period (see
¢
page 184) consume more oil during the
break-in per iod than they consume after oil
consumption has stabilized .
Under normal 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 ambient
temperature and road condit ions. Furthe r fac­
tors are the amount of o il d ilution from wate r
condensation or fuel residue and the ox ida­
tion level of the oil. As any engine is s ubje ct to
Checkin g and fillin g 211
wear as mi leage 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
shou ld check the oil leve l as soon as possib le
¢
page 212. Top off the oil at your earliest
convenience
¢ page 212.
A WARNING
Before you check anythi ng i n the engine
compartment, always read a nd heed all
WARNINGS¢ .&.
in Working in the engine
c ompartment on page 207.
(D Note
Driving w ith an insufficient o il level is like­
ly to cause severe damage to the engine .
(D Tips
- The oil pressure warning display. is
not an indi cator 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 r efuel, and alway s
before going on a long trip .
-If you have the impression you r engi ne
c ons umes ex cess 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 diagnosed. Keep in mind that the accurate measurement 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.
-
•
•

Before you check anything in the engine com­
partment,
al ways r ead and heed all W ARN­
ING S ¢ A in Working in the engine compart­
ment on page 207.
The "MIN" und "MAX" markings are found on
the bi-level disc in the interior of the coolant
expansion tank
¢ fig . 181.
.,. Park your vehi cle on a level sur face.
.,. Turn off the ignition .
.,. Let the engine coo l down .
.,. Place a thick rag over the coolant expansion
tank and
c a refully turn the cap counter ­
clockwise ¢
.&,.
.,. Read the engin e coolant le vel inside the
coolant expans ion tank ¢
fig. 180,
¢ page 209, fig . 177. With a cold engine,
the coolant leve l should be between the
" M IN" and "MAX" mark ings
¢ fig. 181
-arrows- . When the eng ine is warm, the lev­
el may be slightly above the "MAX" marking.
.,. The MAX marking may be covered with a
maximum of 1 mm of coolant when yo u
fill
coolant .
.,. Twist the cap on again tightly.
The location of the coolant expansion tank
can be seen in the engine compartment illus­
tration
¢ page 209.
To obtain an accurate read ing, the engine
must be switched off .
The expans ion tank in you r vehicle is equipped
with an electric coolant level sensor .
When the coo lant level is too low, the warning
light in the A uto-Check System¢
page 18 wi ll
b lin k until you add coo lant and the level has
been restored to norma l. Even though there is
an electric coolant level sensor, we sti ll rec­
ommend you check the coolant leve l from
time to time.
Coolant loss
Coolant loss may indicate a leak in the coo ling
system . In the event of coolant loss, the cool ­
i n g system should be inspected immediately
by your authorized Audi dealer. It is not
enough merely to add coolant.
Checkin g and fillin g 215
In a sealed system, losses can occur on ly if
the boiling point of the coolant is exceeded as
a resu lt of overheating.
Adding coolant
Rep lacement engine coolant must confo rm to
exact specificat ions¢
page 214, Coolant .
We recommend using only coo lant add itive
Gl2++, Gl3 or i n an emergency Gl 2+ . Do not
use a different add itive. In an emergen cy use
plain water until you can ge t the correct addi­
tive and can restore the correct ra tio. This
sho uld be done as soon as possib le .
If you have lost a cons iderab le amount o f
coolant, then you sho uld add cold ant ifreeze
and co ld water on ly when the engine is cold.
A lways use
new engine coo la nt when refilling.
Do not fill coolant above the "MAX" mark. Ex­
cess coolant will be fo rced out through the
pressure relief valve in the cap when the en­
gine becomes hot.
_& WARNING
- Th e cooling system is un der pressure and
can get very hot. Reduce the risk of
scalding from hot coolant by following
these ste ps.
- Turn off the engine and allow it to coo l
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering
the cap w ith a large, th ic k rag.
- Turn the cap s lowly and very carefully
i n a counter-clockwise direction while
applying light, downward pressure on
the top of the cap.
- To avoid being bu rned, do not spill an­
tifree ze or coolant o n the ex haust sys­
tem o r hot engine p arts. Under ce rtain
con ditio ns, the ethy lene glycol in en­
gine coolant can catch fire.
- Antifreeze i s poisonous. Always s tore an­
tifreeze in its original container an d well
out of the reach of children .
Ill-
•
•

216 Check ing and filling
-If you drain the coolant, it must be
caught and safely stored in a proper con­
tainer clearly marked "poison".
(D Note
-Do not add any type of radiator leak seal­
ant to your vehicle's engine coo lant.
Adding rad iator repair fluid may adverse­
ly affect the function and performance of
your cooling system and could result in
damage not covered by your New Vehicle Limited Warranty .
- Coolant pollutes the environment and
could cause an engine fire . Excess cool­
ant wil l be forced out through the pres­
s u re re lief valve in the cap when the en­
gine becomes hot.
- If, in an emergency , only water can be
added, the correct ratio between wate r
and antifreeze
c::> page 214 must be re ­
stored as soon as possib le .
@ For the sake of the environment
Dra ined coolant should not be reused. Al­
ways dispose of used coolant while observ­ ing all environmental regulations.
Radiator fan
The radiator fan switches on automatically by
itself.
The radiator fan is dr iven by the engine via the
V-be lt . T he viscous clutch regulates the speed
of the fan accord ing to the temperature o f the
coolant .
A n auxiliary e lectr ic radiator fan* switches on
and off depending on coolant temperature
and other vehi cle operating conditions.
After you switch the engine off, the auxiliary
fan can cont inue runn ing for up to 10 minutes
- even with the ignition off.
It can even sw itch
on again later by itself
c::> .&. , if
- the temperature of the engine coolant rises
due to the heat bu ild-up from the eng ine in
the engine compartment, or -
the engine compa rtment heats up because
the vehicle is parked in intense sunlight.
.&_ WARNING .........
- To reduce the risk of personal injury nev­
er touch the radiator fan.
- The auxiliary electric fan is temperature
contro lled and can switch on suddenly
even when the engine is not running.
- The auxiliary radiator fan sw itches on au­
tomatically when the engine coo lant
reaches a certain temperature and will
continue to run until the coolant temper ­
ature drops .
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
quick glance.
Fig . 182 Engin e compart men t: Cove r on the b rake flu­
id reservoi r
Before you check anyth ing in the engine com­
partment,
a lwa ys re ad and hee d all WARN­
ING S c::> .&. in Working in the engine compart­
ment on page
207.
~ Read the brake fluid level from the brake
fluid reservoir
c::> fig. 182, c::> page 209,
fig . 177. The brake fluid level must be be­
tween the "MIN" and "MAX" markings .
The brake fluid reservoir is located at the rear
partition of the engine compartment on the
left s ide
c::> page 209.
The fluid level may drop
slightly after some
t ime due to the automatic adjustment of the
brake pads. This is not cause for a larm . .,._

-Always wear gloves and eye protection.
Do not tilt the battery because acid
could leak out of the ventilation open­
ings .
- If you get battery acid in your eyes or
on your skin, immediately rinse with
cold water for several minutes and get
medical attention.
- If you should ingest any battery acid,
seek medical attention immediately.
- Do not expose the battery to an open
flame, electric sparks or an open light .
- Do not smoke.
- Do not interchange the positive and neg-
ative cables .
- When working on the battery, be sure
not to short-circuit the terminals with
tools or other metal objects. This would cause the battery to heat up very quickly,
which could lead to damage or explosion
and personal injury .
- When a battery is charged, it produces
hydrogen gas which is explosive and
could cause personal injury .
- Always keep the battery well out of the
reach of children .
- Before work is done on the electrical sys­
tem, disconnect the negative ground ca­
ble.
- Before performing any work on the elec­ trical system, switch off the engine and
ignition as well as any electrical equip­
ment. The negative cable on the battery
must be disconnected.
If you are just go­
ing to replace a light bulb, then it is
enough to switch off the lights.
- Before disconnecting the battery , switch
off the anti-theft alarm system! Other­
wise you will set off the alarm.
- When disconnecting the battery, first
disconnect the negative cable and then
the positive cable.
- Before reconnecting the battery, make
sure all electrical consumers are switch­
ed off. Reconnect the positive cable first
and then the negative cable. Never inter­
change the cables - this could start a fire!
Checking and filling 219
- Never charge a frozen or a thawed-out
battery . It could explode! If a battery has
frozen, then it must be replaced. A dis­
charged battery can freeze over at 32°F
(ooc).
- Make sure the vent hose is always attach­
ed to the opening on the side of the bat­
tery .
- Never use batteries which are damaged.
There is the danger of an explosion! Al ­
ways replace a damaged battery .
A WARNING
California Proposition 65 Warning:
- 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 problems . Wash hands after han­
dling.
(D Note
- Do not disconnect the vehicle battery
when the ignition is switched on or when
the engine is running, otherwise, you will
damage electronic components in the
electrical system.
- If your vehicle is going to stand for a
long period of time without being driven,
protect the battery from "freezing", oth­
erwise it will be damaged and will then
have to be replaced.
Battery charging
Start ing the engine requires a well charged
battery.
Fig . 183 Eng in e compart ment : Co nnectors fo r charger
and jum per cab les
1111>

Battery replacement
The new battery must have th e sam e specifi­
cations and dim ensions as the original equip­
ment battery.
Intell igent energy management in your vehi­
cle is respons ible for d istr ibuting the e lectr i­
cal energy throughout your vehicle
c::>
pag e 182. The intel ligent e nergy ma nage­
men t system w ill keep the eng ine ba tte ry
ch arged be tte r th en vehicles w ithout t his sys ­
tem . To make sure the additional e lectrica l en ­
e rgy is available once again after you have
changed th e battery, we recommend that you
install batteries of the same type and man u­
facture only (the same as those installed at
the time your vehicle was delivered). Specifi­
cations a re listed on the battery hous ing. Your
author ized Audi d ealer must code the battery
in the energy management system to enable
you to u se the ene rgy man agement func tions
correctly a fter rep lac ing the b att ery.
If it is not poss ible to use a battery of this
type, the new battery must have the same ca­
paci ty, voltage ( 12-volts), ampe rage, con­
s truc tion and pl ug sea ling.
W hen insta lli ng the battery, make sure the ig­
ni tion and all e lectr ical c ons umers a re turned
off.
CD Note
Ma ke s ure the venti lation hose on the s ide
of the bat tery is connected, ot he rwise
fumes or ba ttery a cid c an leak out.
@, For the sake of the environment
Because of the probl em of proper d isposa l
of a batte ry, we recommend your autho r­
i z e d Au di d ealer change the batt ery for
you. Batter ies co ntain s ulfu ric ac id and
lead and m ust always be dis posed of prop ­
erly i n complia nce w ith all environmental
reg ulations. D isposin g of vehicle batteries
improper ly is very dangerous to the envi­
ronment.
Checkin g and fillin g 221
Windshield/headlight*
washer container
Fig. 184 Engine compartment: Cover on th e win d·
s hi eld and headlig ht' washer fluid conta iner
The was her fluid container is marked w ith the
symbol Won its cap c::>
fig. 184, c::> page 209,
fig. 177.
.. Before you check anything in the engine
compartment,
always read and heed all
WARNINGS c::> &. in Working in the engine
compartment on page 207.
.. Lift the fi ller cap tongue to add washer flu­
id. You can fi ll the containe r to t he top .
.. Press the cap back o nto the fi lle r nec k afte r
filling the container.
You can find the reservo ir
capacity in t he table
in c::>
page 263.
Clean water should be used when filling up. If
poss ible, use soft water to prevent scaling on
the washer jets. A lways add a glass cleane r
solution (with frost pro te ction in t he winter).
CD Note
Do not mix engine coo lant antifreez e or
a ny other addit ives to f ill up t he win d­
sh ield washer rese rvo ir.
•
•

24 6 What do I do no w?
• Engage the par king br ake to prevent your
vehicle from rolling unintentionally
c> _&..
• Move the sel ector le ver to the P po sition.
• Take the jack c> page 243 out of the luggage
compartment.
A WARNING
You or your passengers could be injured
wh ile cha nging a wheel if you do not fol­
low these safety precautions:
- If you have a flat t i re, move a safe dis­
tance off the road . Turn off the engine,
tu rn the emergen cy flashers on and use
other wa rning dev ices to alert other mo­
torists.
- Make su re that passengers wait i n a safe
pla ce away from the vehicle and well
away from the road and traff ic.
- T o help prevent the veh icle from mov ing
sudden ly and possibly slipping off the
jack, a lways fully set the parking brake
and block the whee l diagona lly opposite
the whee l being changed with the fo ld­
ing chocks or other objects. When one
front whee l is lifted off the ground, plac­
ing the Automat ic Transmiss ion in "P"
(Pa rk) w ill
not prevent the vehicle from
moving.
- Before you change a wheel, be sure the ground is level and firm . If necessary,
use a sturdy board unde r the jack.
- Always store the vehicle tool kit, the
jack* and the replaced tire in the luggage
compartment
c> page 124.
(D Note
If you are chang ing the wheel on a steep
incline, use a rock or similar object to
b loc k the opposite wheel to prevent the
veh icle from mov ing.
Obey all laws.
-
Changing a wheel
When you change a wheel, follow these­
quence described below step-by-step and in
exactly that order .
l. Remove the wheel bolt caps* . For more
details see also
c> page 247, Wheels with
wheel bolt caps.
2. Loosen the wh eel bolts c>page 247.
3. Locate the p roper mounting point fo r the
ja ck a nd align the jack below that point
c>page248 .
4. Lift the car with the jack c> page 248 .
5. Remove the wheel with the flat tire and
then insta ll the other wheel
c> page 249.
6. Tighten all wheel bolts lightly.
7.
Lower the vehicle with the jack .
8. Use the wheel bolt w rench and
firmly
t ighten all wheel bolts in a crisscross pat­
te rn
c> page 247.
9. Replace the wheel bolt cap s*.
A WARNING
Always read and fo llow all WARN INGS and
informat ion c> .&. in Raising the vehicle on
page 248
and c> page 250 .
After changing a wheel
A wheel change is not comple te without the
doing the following .
• Always store the vehicle tool kit, the jack*,
and the rep laced tire in the luggage com ­
partment
c> page 124.
• As soon as possib le, have the t ightening
torque s
on all whee l bolts checked with a
torque wrench. The correct tightening tor­
que is 90 ft lbs. (120 Nm).
• Have the flat tire
re plac ed as soon as possi­
ble.
(D Tips
- If you not ice that the wheel bolts are
corroded and difficult to turn while
chang ing a tire, they should be replaced
before you check the tightening torque .

Emergency situations
General
This chapter is intended for trained emer­
gency crews and working personnel who have the necessary tools and equipment to
perform these operations.
Starting by pushing or
towing
(D Note
Vehicles with an automatic transmission
cannot be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine can be started by
connecting it to the battery of another vehi­
cle.
If the engine should fail to start because of a
discharged or weak battery, the battery can be
connected to the battery of
another vehicle,
using a
pair of jumper cables to start the en­
gine.
Jumper cables
Use only jumper cables of sufficiently
largecross section to carry the starter current
safely. Refer to the manufacturer's specifica­
tions.
Use only jumper cables with
insulated termi­
nal clamps which are distinctly marked:
plus(+) cable in most cases colored red
minus(-) cable
in most cases colored black .
A WARNING
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal
injury. Follow the instructions below for
safe handling of your vehicle's battery.
- Always shield your eyes and avoid lean­
ing over the battery whenever possible.
Emergency situations 255
-A discharged battery can freeze at tem­
peratures just below 32 °F (0 °C). Before
connecting a jumper cable, you must
thaw the frozen battery completely, oth­
erwise it could explode.
- Do not allow battery acid to contact eyes
or skin . Flush any contacted area with
water immediately .
- Improper use of a booster battery to
start a vehicle may cause an explosion.
- Vehicle batteries generate explosive gas­
es. Keep sparks, flame and lighted ciga­
rettes away from batteries.
- Do not try to jump start any vehicle with
a low acid level in the battery.
- The voltage of the booster battery must
also have a 12-Volt rating. The capacity
(Ah) of the booster battery should not be
lower than that of the discharged bat­
tery. Use of batteries of different voltage
or substantially different "Ah" rating
may cause an explosion and personal in­
jury.
- Never charge a frozen battery. Gas trap­
ped in the ice may cause an explosion.
- Never charge or use a battery that has
been frozen. The battery case may have
be weakened.
- Use of batteries of different voltage or
substantially different capacity (Ah) rat­
ing may cause an explosion and injury.
The ca pa city (Ah) of the booster battery
should not be lower than that of the dis­
charged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS¢
page 200, Engine com­
partment.
(D Note
- Applying a higher voltage booster bat­
tery will cause expensive damage to sen­
sitive electronic components, such as
control units, relays, radio, etc .
- There must be no electrical contact be­
tween the vehicles as otherwise current
could already start to flow as soon as the
positive(+) terminals are connected. ..,. •
•