2015 AUDI RS5 COUPE check engine

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q &.. However, we recommend not using a
thawed battery again because the battery casing
can be cracked due to ice formation and can leak
battery acid.
Batt ery chargi ng (Maximum cha rging rate of
30 amp s/14 .8 Volt )
When charging at
low voltages (e.g. with a trickl e
cha rger ), the battery cables do not have to be
d isconnected first. The battery caps shou ld
not
be opened when charg ing a battery.
It is not necessary to remove the battery from
the luggage compartment.
Fast charging th e battery (char ging rat e
above 14 .8 Vo lt s)
For technical reasons do not use a battery charg ­
er that uses voltage greater than 14.8 Volts to
charge your vehicle's battery.
A WARNING
Charging a battery can be dangerous.
- Always follow the operating instructions
provided by the battery charger manufactur­
er when charging your battery.
- Never charge a frozen battery. It may ex­
plode because of gas trapped in the ice. Al­
low a frozen battery to thaw out first.
- Do not reuse batteries which were frozen.
The battery hous ing may have cracked and
weakened when the battery froze.
- Charge the battery in a well ventilated area.
Keep away from open flame or electrical
spark. Do not smoke. Hyd rogen gas generat­
ed by t he battery is explos ive.
- To reduce the danger of explosion, never
co nnect or disconnect cha rger cables while
the cha rger is operating.
- Fast charg ing a battery is dangerous and
should only be attempted by a competent
tec hnician with the p roper equipment.
- Battery acid that may spill du ring charg ing
sho uld be washed off w ith a so lution of
wa rm w ater and baking soda to ne utralize
the acid .
Checking and Fillin g
(D Note
Never use a fast charger as a booster to start
the engine . This will ser iously damage sensi­
tive electronic components, s uch as control
units, relays, radio, etc., as well as the battery
charger.
Battery replacement
The new battery must hove the some specifica­
tions and dimensions as the original equipment
battery.
Intelligent energy management in your vehicle is
responsible for distributing the electrical energy
t h roughout your vehicle
q page 175. The intelli­
gent energy management system w ill keep the
engine battery charged better then vehicles with­
out this system. To make s ure the addit ional elec­
t rical energy is ava ilab le once again afte r yo u
have changed the battery, we recommend that
you install batteries of the same type and man u­
facture on ly (the same as those insta lled at the
t ime yo ur vehicle was delivered). Specifications
are listed on the battery hous ing. Your author­
ized Audi dealer must code the battery in the en­
ergy management system to enab le you to use
the e nergy management fu nctions correctly after
replacing the battery.
If it is not possib le to use a battery of this type,
the new battery must have the same capac ity,
voltage ( 12-volts), amperage, construction and
plug sealing.
When installing the battery, make sure the igni­
t ion and all electr ica l consumers are turned off.
(D Note
Make sure the ventilat ion hose on the side of
the battery is connected, otherwise fumes or
battery acid can leak out.
@ For the sake of the environment
Because of the prob lem of proper disposal of
a battery, we recommend your authorized
Audi dealer change the battery for you. Bat­
teries contain sulfur ic acid and lead and must
a lways be d isposed of properly in compliance ..,.
199

Checking and Fill in g
with all environmental reg ulations. D isposing
of vehicle batteries improperly is
very danger­
ous to the env ironment.
Windshield/headlight*
washer container
F ig . 168 Engin e com partm en t: Cover o n the win d shi eld
and head lig ht• was he r fl ui d co ntainer
The washer flu id container is marked with the
symbo l~ on its cap
~fig . 168 , ~ page 189,
fig . 161.
(") N
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• Before you check anyth ing in the eng ine com ­
partment,
alw ay s re ad and he ed all WARN­
IN GS ~ ,& in Working in the engine compart­
ment on page 187 .
• Lift the fi ller cap tong ue to add w asher fl uid .
You can fill the container to the top.
• Press the cap back onto the filler neck after f ill-
ing the container .
You ca n find the rese rvoir
c apa city in the tab le in
~ page 234.
Clean water sho uld be used when fill ing up . If
possible, use soft water to prevent sca ling on the
washer jets. Always add a glass cleane r solu tion
(with frost protection in the winter) .
@) Note
Do not mix engine coo lant antifree ze or any
other add itives to fi ll up the windshie ld wash­
er reservoir .
200

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A WARNING 1=
You or your passengers cou ld be injured while
chang ing a wheel if you do not follow these
safety precautions:
- If you have a flat t ire, move a safe distance
off the road . Turn off the engine, turn the
emergency flashers on and use other warn­
ing devices to alert other motorists.
- Make sure that passengers wait in a safe
place away from the vehicle and well away
from the road and traff ic.
- To help prevent the veh icle from mov ing
sudden ly and possibly slipping off the jac k,
always fully set the pa rking brake and block
the whee l diagona lly opposite the w heel be­
ing changed with the folding chocks or oth ­
er objects. When one front wheel is lifted
off the ground, placing the Automatic Trans­
mission in "P" (Park) will
not prevent the ve ­
hicle from moving.
- Before you change a wheel, be sure the
ground is level and firm. If necessary, use a
sturdy board under the jack.
- Always store the vehicle tool kit, the jack *
and the replaced tire in the luggage com­
partment
c> page 117.
(D Note
If you are changing the wheel on a steep in­
cline, use a rock or sim ilar object to block the
opposite whee l to prevent the vehicle from
mov ing.
{!) Tips
Obey a ll laws.
Changing a wheel
When you change o wheel, follow the sequence
described below step-by-step and in exactly that
order.
1. Remove the wheel bolt caps*. F or more de­
tails see also ¢
page 220 , Wheels with
wheel bolt caps .
2. Loosen the wheel bolts¢ page 220.
Emerge ncy ass is tanc e
3. Locate the proper mounting point for the
jack and alig n the jack below that point
¢ page 221 .
4. Lift the car with the jack¢ page 221.
5. Remove the wheel with th e fla t tire and then
install the other wheel¢
page 222 .
6. Tighten all whee l bolts lightly.
7 .
Lower the vehicle with the jack .
8. Use the wheel bolt wrench and
firmly t ighten
all wheel bo lts in a crisscross pattern
¢page 220.
9. Replace the wheel bolt cap s* .
A WARNING
A lways read and fo llow all WARNINGS and in­
formation
¢ &. in Raising the vehicle on
page221
and ¢page 223.
After changing a wheel
A wheel chonge is not complete without the do­
ing the following.
.. Always store the vehicle tool kit, the jack*, and
the replaced tire in the luggage compartment
¢ page 117.
.. As soon as possib le, have the t ightening tor­
ques
on all wheel bolts checked with a torque
wrench . The correct t ightening to rque is 90 ft
lbs. (120 Nm) .
.. Have the flat tire
replaced as soon as possible .
(D Tips
-If you not ice that the wheel bo lts a re cor­
roded and difficult to tur n while changing a
tire, they should be replaced before you
check the tigh tening torque.
- Dr ive at reduced speed until you have the
tightening to rques che cked.
219

Emerg enc y s it uat ion s
Emergency situations
General
T his c hapt er is inte nded fo r tra ined e merg ency
c rews a nd worki ng p ers onn el w ho h ave the nec­
e ssa ry tool s and equipm ent t o perf orm the se
op era tion s.
Starting by pushing or
towing
CD Note
Vehicl es with an automa tic tra nsmission
c annot be st arted by pushing or towing .
Starting with jumper
cables
If necessary, the engine con be started by con­
necting it to the battery of another vehicle .
If the engine should fail to start because of a d is­
charged or weak battery, the battery can be con­
nected to the battery of
another vehicle, us ing a
p air of j umpe r cables to start the engine.
Jump er c abl es
Use only jumper cab les of sufficiently largec ross
sec tion
to carry the starter current safely. Refer
to the manufacturer's specifications.
Use on ly jumper cables with
insulated term inal
clamps which are d istinctly mar ked:
plus (+ ) cabl e in most cases co lored re d
minu s(-) cable
in most cases colored black .
A WARNING
Batteries contain electricity, ac id, and gas.
Any of these can cause very ser ious or fatal in­
jury . Fo llow the inst ruct ions be low for safe
hand Ling of your veh icle's battery.
- Always shield your eyes and avoid leaning
over the battery whenever possible.
- A discharged battery can freeze at tempera­
tures just below 32 °F (0 °C). Before con­
nect ing a jumper cab le, you must thaw the
228
frozen battery completely, otherwise it
could explode.
- Do not allow battery acid to contact eyes or
skin. Flush any contacted area with water immed iately.
- Improper use of a booster battery to start a
veh icle may cause an explosion.
- Vehicle batteries generate explosive gases .
Keep sparks, flame and lighted cigarettes
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 al­
so have a 12-Volt rat ing . The capacity (Ah)
of the booster battery should not be lower
than that of the discharged battery. Use of batter ies of different voltage or substantial­
ly different "Ah" rating may cause an explo­
sion and personal injury .
- Never charge a frozen battery . Gas trapped
in the ice may cause an explosion .
- Never charge or use a battery that has been
frozen . The battery case may have be weak­
ened .
- Use of batter ies of different voltage or sub­
stantially d ifferent capacity (Ah) rating may
cause an explosion and injury. The capacity
(Ah) of the booster battery sho uld not be
lowe r than that of the discharged battery.
- Before you check anything in the engine
compartment, always read and heed a ll
WARNINGS
qpoge 187.
CD Note
-App lying a higher voltage booster battery
wi ll cause expensive damage to sensitive
elec tronic components, such as control
units, re lays, radio, etc.
- T here must be no electrical contact between
the vehicles as otherwise cu rrent cou ld al­
ready start to flow as soon as the positive
(+) termina ls are connected.
@ Tips
The discharged battery must be properly con-
nected to the vehicle's electrical system. .,.

Emergency situation s
-The ba ttery ce ll lockin g screws must be
t ightened securely .
- Before you check anyt hing in the engine
compartment, always read and heed all
WARNINGS
c> page 187.
(D Note
Improper hook -u p of jumper cables can r uin
the generator .
- A lways connect POS ITIV E(+ ) to POS ITIV E
( + ), and NEGATIVE( -) to NEGATIVE( -)
gro und post of the battery manager control
unit .
- Check that a ll screw plugs o n the batte ry
ce lls are screwed in firmly . If not, tighten
pl ugs prior to connect ing clamp on negat ive
battery te rminal.
- Please note that the procedure for connect­
i ng a jumper cable as desc ribed above ap ­
plies specifica lly to the case of yo ur vehicle
being jump started . W hen you a re g iving a
j u mp sta rt to another vehicl e, do
not co n­
ne ct the negative ( -) cab le to the negative
( -) t erminal o n the di scharged battery @
c> fig. 18 8 . In stea d, secure ly co nn ect the
nega tive ( -) cab le to either a solid me tal
com ponent that is f irm ly bolted to the en ­
gine block o r to t he engine bloc k itself. I f
the battery that is being charged does not
vent to the outside , escap ing battery gas
could ignite and exp lode!
Towing with a tow truck
General hints
Y o ur Audi requires special handling for towing.
The fo llow ing information is to be used by com ­
mercia l tow truck operato rs who know how to op­
erate their eq uipment safe ly .
- Never tow your Audi, towing will cause dam­
age to the engine and transmiss ion.
- Never wrap the safety chains or winch cables
around the brake lines .
- To pre vent unnecessary damage, your Audi
must be transported with a flat bed truck.
230
- To load the vehicle on to the flat bed , use the
towing loop found in the vehicle tools and at·
tach to the front or rear anchorage
c> page 230 and c:>page 231.
A WARNING
A veh icle being towed is not safe f or passe n­
gers . Never a llow anyone to ride in a ve hicle
be ing towed, fo r any reason .
Front towing loop
Do not install the front towing loop until it is
needed .
Fig. 18 9 Fro nt b um per: remov ing t he cove r cap
Fig. 190 Front b umper: sc rew ing in t he tow ing loop
The towing loo p fits in to the threade d hole locat­
ed on the right side o f the front bum per and cov ­
e red by a small cover when not in use .
.,. Remove the tow ing loop fr om the vehicle tool­
ki t
c> page 216.
... Take ho ld of the bot tom edge o f the cover cap
and pull it out of the bumpe r
9fig . 189 .
... Sc rew the tow ing loop t ightly into the threaded
hole as far as it will go
c> fig. 190 and t ighten it
with the wheel wrench . ..,.

Emergency situation s
Raising the vehicle
Lifting with workshop hoist and with floor
jack
The v ehicle may only be lifted at the lifting
points illustrated.
F ig . 1 94 Front lift in g po int
F ig . 1 95 Rear l ift ing po int
... Read and heed WARNING c> &_ .
... Locate lifting points c> fig. 194 and c> fig . 195.
... Adjust lift ing arms of workshop hoist or floor
jack to match veh icle lifting points.
... Inse rt a r ubber pad between the floor jack/
workshop hoist and the lifting points .
If you must lift your vehicle with a floor jack to
work underneath, be sure th e vehicle is safely
supported on stands intended for this purpo se.
F ront l ifting point
The lifting point is located on the floor pan rein­
forcement about at the same leve l as the jack
mount ing po int
c> fig . 194 . Do not lift the vehi­
cle at the vertical sill reinforcement .
Rear lift ing point
The lifting point is located on the vertical rein ­
forcement of the lower sill fo r the on board jack
c>fig. 195.
232
Lifting with vehicle jack
Refer to c::> page 221.
A WARNING
- To reduce t he risk of serious injury and vehi­
cle damage .
- Always lift the vehicle only at the specia l
workshop hoist and f loor jack lift points il­
l ustrat ed
c::> fig . 194 and c> fig. 195.
-Failure to lift the veh icle a t these points
could cause the veh icle to tilt o r fall from
a lift if th ere is a cha nge in vehi cle we ight
dis tribu tio n and balance. T his m ight hap­
p en, for example, whe n he avy compone nts
s uch as the en gine block or tran smission
are removed .
- W hen removing he avy componen ts like
these, anchor vehicle to hoist or ad d corre ­
spond ing weights to ma intain the center of
grav ity . Otherwise, the vehicle might ti lt o r
slip off the ho ist , causing se rious persona l
in jury .
(D Note
-Be aware of the following points before lift ­
ing the vehicle:
- The veh icle should never be lifted or
jacked up from underneath the engine oil pan, the transmis sion housing, the front
or rear axle or the body side members .
This could lead to serious damage .
- To avoid damage to the underbody or
chas sis frame , a rubber pad must be in­
serted between the floor ja ck and the lift
points.
- Before driving over a workshop hoist,
check that the vehicle weight doe s not
exceed the permissible lifting capacity of
the hoist.
- Before driving over a work shop hoist , en­
sure that the re is sufficient clearance be­
tween the hoist and low parts of the ve­
h icle.

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Technical data
Vehicle identification
F ig. 196 Ve hicle Identificat io n Number (VlN) plate: loca·
t io n on d river 's s id e dash pane l
XXXXX XX -X -XXXX XXX XX
CD+ ~t :1:: xxxxxxxx xx x xx xxx xxx
T VP /fffl XXX XXX
XX XXXXXXX XX X X xx
XXX KW XXX
®i ~:J·f lfils~~ XXXX XXX XXX
®-+ ~N:a=i~ l xxxx ; xxxx xxx ; xx
II.· AUSS, I OPTIONS
,__ __
EO A 7D5
2EH JOZ
3FC
FOA
TL6 3KA
lX W
7T6 CV 7
3L4 lSA
4UB 6XM 5SG
llB l AS
S MU 7Xl
9G3 0G7 0YH
8EH Ul A X 98
803 908 824
7K0 4X3
2 K2
4KC 3Y0 413
7GB
01 A
5R W
18A
OJF
QZ7
020
502
4G0
XX . X XX X XX X XXXX
Fig. 197 T he veh icle identi fica tion label: ins ide the l ug·
ga ge compart men t
Vehicle Identification Number (VlN )
The Veh icle Iden tifica tion Number is located in
d iffe rent p laces:
- under the w indshield on the dr iver's side
c> fig . 196.
-in the radio or in the MM I*: Select : I CARI func­
t ion button
> V ehicle ID numb er (VIN ) or se·
Leet :
I CARI funct ion button > Car sy stem s* con­
tro l bu tton >
Servicing & checks > VIN num­
ber .
-on the vehicle identification la bel.
Technical d ata
Vehicle id entification label
T he veh icle identification label is lo cated in the
lu ggage compartment near the battery.
T he labe l c>
fig. 197 shows the fo llowing vehicle
da ta:
(D Vehicle Ident ificat ion Number (VIN)
@ Vehicle type, engine o utp ut, transmission
® Engine and transm iss ion code
@ Pa int number and interior
® Optional equipment numbers
T he information of the veh icle identification label
c a n a lso be fo und in you r W arranty
& Mai nte­
nance booklet.
Safety compliance sticker
T he safety compliance sticker is you r assurance
that your new vehi cle complies w ith all applicable
Federa l Mo tor Vehi cle Safety Sta ndards which
were in effec t at the time the vehicle w as m anu ­
fac tured. Yo u can find this sticker on the door
jamb on the driver 's side. It shows the month and
year of production and the vehicle identification number of your vehicle (perforation) as we ll as
the Gross Veh icle Weight Rating (GVWR) and the
Gross Axle Weight Rating (GAWR).
H igh vo ltage warning lab el
T he hig h voltage warning label is located in the
engine compartment ne xt to the eng ine hood re­
lease. The spark ign ition system complies with
the Canadian standard ICES-002 .
Weights
Gross Vehicle Weight Rating
The Gross Vehicle Weight Rat ing (GVWR), and
the Gross Axle Weight Rating (GAWR) for front
and rear are listed on a st icker on the door jamb
on the dr iver's side.
T he Gross Vehicle Weight Rat ing includes the
weight of the basic vehicle plus fu ll fuel tank, oil
and coolant, p lus maxim um load, which includes
passenger weigh t (150 lbs/68 kg per designated
seat ing pos ition) and luggage we ight
c> .&, . ..,,.
233

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today's automobiles, have steadily reduced the
scope of maintenance and repairs which can be
carried out by vehicle owners .
Also , s afety a nd
en viro nm enta l
concerns place very strict limits
on the nature of repairs and adjustments to en­
g ine and transmission parts which an owner can
perform.
Maintenance, adjustments and repa irs usua lly re­
qu ire spec ial tools, testing devices and other
equ ipment available to specially trained work­
shop perso nnel in order to assure proper per­
formance, reliab ility and safety of the vehicle and
its many systems.
Improper ma intenance, adjustments and repairs
can impair the operation and reliability of your
vehicle and even void your vehicle warranty .
Therefore, proof of se rv icing in accordance with
the m aintenance schedule may be a condi tion for
upho ld ing a possib le warranty cla im made w ith in
the warranty period .
Above all, operational safety can be adversely af­
fected, creating unnecessary r isks fo r you and
your passengers.
I f in doubt about any servicing, have it done by
your author ized Audi dealer or any prope rly
equ ipped and qua lified workshop. We st rongly
urge you to give your authorized Audi dealer the
opport unity to perform all sched uled mainte­
nance and necessary repairs. Your dealer has the
fac ilities, origina l parts and trained specia lists to
keep yo ur vehicle runn ing properly.
P e rforming lim it e d ma inten anc e y ours elf
The fo llowing pages describe a limited number of
proced ures which can be performed on yo ur vehi­
cle with ordinary tools, should the need arise and
trained personne l be unavailable. Before per­
forming any of these procedures, always thor­
oughly read all of the applicable text and careful­
ly follow the instructions g iven . Always rigorously
observe the
W ARNINGS prov ided .
Before you check an ything in the engine com ­
partm ent, always r ead and h eed all WARNING S
c:> .&. and c:> .&. in Working in the engine comport­
ment on page 187.
C o nsum er information
A WARNING
- Ser ious personal injury may occur as a result
of improperly performed maintenance, ad­
justments or repairs.
- Always be extremely careful when work ing
on the vehicle. Always follow commonly ac­
cepted safety practices and general com­ mon sense. Never ris k personal injury.
- Do not attempt any of the maintenance,
checks or repairs descr ibed on the following
pages if you are not fully familia r wi th these
or other procedures w ith respect to the vehi­
cle, or a re unce rtain how to proceed .
- Do not do any work without the proper tools
a nd eq uipment. Have the necessary work
done by your authorized Audi dealer or any
properly equipped and qualified workshop.
- The engine compa rtment o f any motor vehi­
cle is a potentially hazardous area. Neve r
reach into the area around or touch the radi­
ator fan. It is temperature controlled and
can switch on suddenly - even when the en­
g ine is off and the ign ition key has been re­
moved. The rad iator fan switches on auto­
mat ically when the coo lant reaches a certain
temperature and will continue to run unt il
the coolant temperature d rops.
- Always remove the ign ition key befo re any­
one gets under the vehicle.
- Always support your veh icle with safety
stands if it is necessary to work underneath
the vehicle. The jack supplied w ith the vehi ­
cle is no t adequ ate for this purpose and
could collapse caus ing serious personal in­
jury.
- If you m ust wor k underneath t he vehicle
with the wheels on the ground, a lways make
sure the vehicle is on level ground, that the
wheels are a lways secure ly blocked and that
the engine cannot be started.
- Always make sure the transmission se lector
lever (automatic transmiss ion) is in "P"
(Park position) and the park brake is firmly
applied.
2 37