2014 AUDI S4 check engine

2 76 Con sum er Inf ormation
comp lexity of today's automobi les, have
steadi ly reduced the scope of maintenance
and repairs which can be carried out by vehicle
owners.
Also, s afety an d e nvir onm ent al con­
cerns place very strict limits on the nature of repairs and adjustments to engine and trans ­
miss ion pa rts which an owner can perform .
Maintenance, adjustments and repa irs usua lly
require special tools, testing devices and oth­
er equipment avai lab le to specially trained
workshop personnel in order to assure proper
performance, reliab ility and safety of the vehi­
cle and its many systems .
Improper ma intenance, adjustments and re ­
pa irs can impair the operation and reliab ility
of your vehicle and even void your vehicle war­ ranty. Therefo re , proof of servici ng in accord­
ance w it h the ma intenance sched ule may be a
condition for upholding a possible warranty
claim made within the warran ty period.
Above all, operational safety can be adve rsely
affected, c reating unnecessary risks for you
and your passengers.
If in doubt about any serv icing, have it done
by your author ized Audi dealer or any properly
equ ipped and qu alified workshop. We strong­
l y urge you to give your authorized Audi dea ler
the opportunity to perform all scheduled maintenance and necessary repairs . Your deal­
er has the facilities, or iginal parts and trained
specialists to keep your veh icle running prop­
erly.
Performing lim it e d m aint en anc e y ourself
The following pages describe a limited num­
ber of procedures which can be performed on
you r vehicle with ordinary tools, should the
need arise and trained personnel be unavaila­
ble. Before performing any of these proce­
dures, always thoroughly read all of the app li­
cable text and ca refully follow the instruc­
tions given. Always rigorously obse rve the
WARNINGS p rovided .
Before you ch eck anything in th e engine
compartm ent, alw ays read an d hee d all WARNINGS
¢ & a
nd ¢ & in Working in the
engine comportment on page 214 .
A WARNING
--Serious personal in jury may occur as a re-
sult of improperly performed mainte­ nance, adjustments or repa irs.
- Always be extremely careful when work­
ing on the vehicle. Always follow com­
monly accepted safety pract ices and gen­
eral common sense. Never r isk personal
in jur y.
- Do not attempt any of the maintenance,
checks or repairs descr ibed o n the fol­
lowing pages if you are not fu lly fam iliar
with these or other procedures with re­ spect to the ve hicl e, or are uncerta in how
to proceed .
- Do not do any work withou t the proper
too ls and equipment . Have the necessary
work done by your authorized A udi deal ­
er or any properly equipped and q ualified
workshop.
- The engine compar tment o f any motor
vehicle is a potentially hazardous area. Never reach into the area around or
touch the rad iator fan. It is temperature
control led and can sw itch on suddenly -
even when the engine is off and the igni­
tion key has been removed. The rad iator
fan switches on automatically when the coo lant reaches a certain tempera ture
and will cont inue to run until the coo lant
temperature drops .
- Always remove the ign ition key befo re
a nyone gets under the veh icle.
- Always suppor t your veh icle with safety
s tands if it is necessary to work under­
neath the vehicle. The jack s upplied with
the vehicle is not adequate for this pur ­
pose and co uld co llapse causing serio us
personal injury.
- If you must work unde rneath the vehicle
with the wheels on the ground, a lways
make sure the vehicle is on leve l ground,
that the wheels are always securely blocked and that the engine cannot be
started.

-Always make sure the transm ission se­
lector lever (automatic transmiss ion) is
in "P" (Park position) or Neutral (manual
transmission) and the park brake is firm­
ly appl ied .
® For the sake of the environment
-Changing the eng ine settings w ill ad­
versely affect em ission levels. This is det­
rimental to the environment and increas­
es fuel consumption .
- Always observe env ironmental regula­
tions when d ispos ing of old engine oil,
used brake fluid, dirty engine coolant,
spent batter ies or worn out t ires.
- Undeployed airbag modules and p reten­
s ioners might be classified as Perchlo­
rate Material -special handling may ap ­
ply, see www.dtsc.ca .gov/hazardous­
waste/perch lorate . When the veh icle or
parts of the restraint system including
airbag modules safety belts with preten­
s ioners are scrapped, all applicable laws
and regulations must be observed. Your
authorized Audi dealer is familiar w ith
these requirements and we recommend
that you have your dealer perform this
serv ice for you .
Additional accessories,
modifications and
parts replacement
Additional accessories and parts
replacement
Always consult on authorized Audi dealer be­
fore purchasing accessories.
Your veh icle incorporates the latest safety de­
sign featu res ensu ring a high standard of ac­
tive and passive safety.
This safety could be compromised by non-ap­
proved changes to the veh icle. For this reason ,
if parts have to be replaced, p lease observe
the following points when installing addition­
al accessories:
Con sumer In formation 2 77
Approved Audi accessories and genuine Audi
parts are available from authorized Audi deal­
er.
T hese dea lers a lso have the necessary facili­
ties, tools and trained specialists to install the
parts and accessories proper ly.
A WARNING
Using the wrong spare parts or using non­
approved accessories can cause damage to
the vehicle and serious persona l injury.
- Use on ly accessories express ly approved
by Audi and genuine Audi spare parts
- These parts and accessories have been
specially designed to be used on your ve­
hicle.
- Never install accessories such as tele­
phone cradles or beverage holders on air­
bag covers or within the airbag deploy­
ment zones . Do ing so will increase the
risk of injury if a irbags are triggered in an
accident!
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS ~
page 214.
(D Note
-If items other than genuine Audi spare
parts, add-on equipment and accessory
items are used or if repair work is not
performed accord ing to specified meth­
ods, this can result in severe damage to
your vehicle's engine and body (such as
corrosion) and adversely affect your vehi ­
cle's warranty .
- If emergency repairs must be performed
elsewhere, have the vehicle examined by
an authorized Audi dealer as soon as
possible.
- The manufacturer cannot be held liable
for damage wh ich occurs due to failure
to comply with these stipulations.
•
•

Automatic climate control Air vents ... .... .. .... ... .. .. .. .... 78
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 77
Setup ... .. ................. .. .... 79
Automatic S hift Lock (ASL) . . . . . . . . . . . . 93
Automatic transmission ......... ... ... 91
Automatic S hift Lock (ASL) . . . . . . . . . . . 93
D riving .. .. ............. .... .. .. .. 9 3
E mergency mode . . . . . . . . . . . . . . . . . . . 97
E me rgency release . . . . . . . . . . . . . . . . . . 98
Kick -down . . . . . . . . . . . . . . . . . . . . . . . . . 96
M anual shift program .. ... .. .. .. .. .. 96
Remova l lock (ignition key) ... .. .. .. .. 80
Selector lever . . . . . . . . . . . . . . . . . . . . . . 92
Automatic wipe rs . . . . . . . . . . . . . . . . . . . . 53
Auto Safety Hotline ............. .... 136
Average speed . . . . . . . . . . . . . . . . . . . . . . . 25
Avoid damag ing the vehi cle .. .. .. .. .. . 195
B
Bag hooks . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Battery . . . . . . . . . . . . . . . . . . . . . . . 17,225
Battery location inside the luggage com -
partment .. .. ........... .. .. .. ... 225
Charging . ................ ... ... .. 227
Important war nings when wo rking on
the battery . ................ ... ... 225
J ump starti ng ............ .... .. .. . 266
L ow . .. .. .. .. .. ........... .. .. ... 193
Replacing the ba ttery .. ... .. .. .. .. . 228
State of charge . ....... ... .. .. .. ... 193
Winter operation . ..... ... .. .. .. .. . 225
Working on the battery .... .. .. .. .. . 225
B efore dr iving ............. .... .. .. . 128
Bio-ethanol (Fuel) ..... ..... .. .. .. .. . 210
Blended gasoline ... .... ... .. .. .. .. . 209
B lower (automatic climate cont rol) . . . . . . 78
Booster seats ............. .... .. .. . 175
B rake fl uid
C hanging the brake fl uid ... .. .. .. .. . 224
Chec king the brake fluid level ... .. .. . 224
Reservoir .. ............. .... .. ... 224
What is the correct brake flu id leve l? . . 224
What should I do if the brake fluid warn-
i ng light comes o n? .. ..... .. .. .. .. . 224
Inde x 281
Brake system . ..... ... .. .. ..... ... .. 224
Anti- lock b raking system ..... ... .. .. . 19
B rake assist system .. .. ..... ... .. .. 186
Brake fluid .. .. .. ................. 224
Brake fluid specifications for refill and re-
placement ...... .. ............... 224
B rake light defective ... .. .. ... ... .. . 21
B ra ke powe r ass ist unit ............ . 189
Br akes .. .. .. .. .. .. . .............. 189
Ce ram ic bra kes . .. .... ........... .. 189
El ec tromechanica l parking brake ... .. . 85
Warning/indicator lights ..... ... .. .. . 15
Wor n brake pads symbo l . . . . . . . . . . . . . 20
B ra kin g
E mergency b ra ki ng f unction ..... .. .. . 87
braking guard . . . . . . . . . . . . . . . . . . . . . . . 99
Messages . . . . . . . . . . . . . . . . . . . . . . . . 107
Settings ........ .. ............... 106
Break -in per iod .. .. .... ............. 195
Tires ... .. .. .. .. .. ............... 195
Bul bs . ... .. .. .... .. . .. .. ..... ... .. 2 64
C
Califor nia Proposition 65 War ning . .. .. 215
B attery spec ifi c .. ............. .. .. 226
Capacities ........ .. ............... 273
Carbon pa rts
Cleaning . . . . . . . . . . . . . . . . . . . . 206, 207
Care ..... .. .. .. .... ... .......... .. 20 4
Cargo a rea
refer to L uggage compartment . . . 68, 134
Catalytic converter ... .. ...... ... .. .. 196
Cen te r armrest . . . . . . . . . . . . . . . . . . . . . . 60
Central lock ing .. .. ................. . 32
Cen tral lock ing switch ............. .. 36
Co nvenience key . . . . . . . . . . . . . . . . . . . . 36
Remote cont ro l key . ........... .... . 35
Ceram ic brake rotors
New brake pads .. ............. .... 189
Ce rtification . ... .... . ... ...... ... .. 278
Chang ing a flat t ire . .. ... ....... .... . 255
Chang ing a wheel .. ............. .... 255
Chang ing engine oil ............. .... 220
Checking Engine coolant level .... ....... .... . 221
Checking t ire pressure ............... 237
•
•

284 Index
Starting with jumper cab les . ....... . 266
Stopping . . . . . . . . . . . . . . . . . . . . . . 82, 84
E ng ine compartment
Safety instructions ...... .. .. .. .. .. . 214
Working the engine compartment 214
Eng ine coolant
Indicator light . . . . . . . . . . . . . . . . . . . . . 17
E ngine coolant system ...... .. .. .... . 221
Adding coolant ........... .. .. .. .. . 222
Checking coolant level ..... .. .. .. .. . 221
Check ing the eng ine coolant level .. .. . 221
Radiator fan .............. ... .. .. . 223
E ngine coolant temperature
Temperature gauge ....... .. .. .... .. 10
Engine hood
C losing ......... ......... ... .... . 214
How to release the hood ............ 214
E ng ine oil . .... ........... ........ . 216
Adding .. .. ............. .. .. .. .. . 219
Addit ives ... ................ ..... . 219
Changing . ................. ..... . 220
Check oil level ............ ... .... . 219
Consumption ............ .. .. .. .. . 219
Indicator light . . . . . . . . . . . . . . . . . 17, 21
Oil consumption ............ .. .... . 218
Oil grades .. ................ ... .. . 216
Pressure malfunction ...... .. .. .. .. . . 17
Sensor defective . . . . . . . . . . . . . . . . . . . . 21
Specification and viscos ity .. .. .. .... . 216
Engine speed limitation . . . . . . . . . . . . . . . 21
Environment Break- in period ............ ... .... . 195
Cata lytic converter ............ .. .. . 196
Disposing of your vehicle battery ..... 228
Driving at high speeds ..... .. .. .. .. . 197
Driving to minimize pollution and noise 197
Fuel ..... .. ..... ........... ... .. . 212
Fuel economy ............. ... .. .. . 197
L eaks under your veh icle . .. .. .. .. .. . 214
L ett ing the vehicle stand and wa rm up . 198
Proper disposal of drained brake fluid . 224
Proper disposal of drained engine coo l-
ant ..... .. ................ ..... . 222
Proper disposal of dra ined engine
oil . . . . . . . . . . . . . . . . . . . . . . . . . 219, 220
Recycling used engine oil ... .. .. .. .. . 219
Roof rack .. ... .... ...... .. .. .. .. .. 68 Unleaded fuel
.... ................ . 209
What shou ld I do with an o ld battery? . 228
EPC
refer to E lectronic power control . . . . . . 20
Ethyl alcohol (Fuel) . .. .. ...... ... .. .. 210
Event Data Recorder (EDR) ............ 186
Exhaust tail pipes
Cleaning .. .... .. ............. .... 205
Expansion tank .... ............. .... 221
Exterior lighting ... ................ .. 47
Exterior m irrors
Adjust ing . .. .. .. .. ........... .. .. . SO
Dimming .. .... .. ............. ..... 51
Heating . .. .. .. . .............. .. .. . SO
F
Fan
Radiator 223
Fastening Booster seats . . . . . . . . . . . . . . . . . . . . . 17 5
Convertib le child safety seats .. ... ... 174
Infant seats ... .. ... .......... .... 173
Fa stening eye s
refer to Tie-downs . . . . . . . . . . . . . . . . . . 72
Flat tire Changing ..... .. ................ . 255
flexib le fue l ....... ............. .... 210
Floor .. .... .... .. ................. . 74
Floor mats . ..... .. ................ . 133
Fog lights/rear fog light(s) ......... ... . 47
Folding the rear seats ............ .... . 69
Foot pedals . .... .. ............. .... 133
For the sake of the environment Gasoline fumes and the env ironment .. 212
Letting the engine warm up . . . . . . 80, 83
Refueling . .. .. .. ... .......... .... 212
Sav ing fuel by early upshifting . .. .. .. . 11
Front airbags Description .. .. .. .......... ...... . 150
How they work . .. .......... ...... . 155
Frontal collisions and the laws of physics 139
Front passenger's door emergency lock ing 38
Front seats Adjusting ... .. .. ....... ...... .. .. 130
Child restraints in the front seat .. .. .. 147

_______________________________ ___:I~n~d~e:.::x 285
Fuel
Additives ... ................ ... ... 209
Blended gasoline ............ ... .. . 209
Consumption . . . . . . . . . . . . . . . . . . . . . . 25
Filler neck .. ............. .... .. ... 211
Fuel gauge . ................ ... ... . 12
Gasoline ... ... .. .. ...... .. .. .. .. . 209
Gasoline additives ........... .... .. 211
L ow fuel level symbol . . . . . . . . . . . . . . . 21
Octane rating ............ .... .. ... 209
Recommendation ............ ... .. . 209
Refuelling . ................. ... ... 212
Reserve .... ................ ... .... 12
T ank capacity . ........... .. .. .. ... 273
Tank system ............. .... .. .... 21
Unlocking the fuel filler flap by hand . . 213
F uel economy messages (efficiency pro-
gram) .......................... .... 29
Fuel filler flap
Un locking the fuel filler flap by hand . . 213
Fuses Assignment . . . . . . . . . . . . . . . . . 261, 263
R l . ep acing .................. .... .. 261
G
Garage door opener (Homelink) .. .. .. . 124
Garment hooks . . . . . . . . . . . . . . . . . . . . . . 66
Gas discharge lamps ........ .. .. .. .. . 264
Gauges Engine coolant tempera ture .. .. .. .. .. 10
Fuel gauge ................. .... ... 12
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 11
Gear recommendation . . . . . . . . . . . . . . . . 28
G h.ft . d'
ears
I in 1cator ......... .. .. .. .. .. 27
Gearshift lever 6-speed manual transmission . .. . ... .. 91
General illustration Instruments and controls . . . . . . . . . . . . . 8
Generator Warning/indicator lights ......... .. .. 17
Glossary of tire and loading terminology 231
Glove compartment . . . . . . . . . . . . . . . . . . 65
Valet parking ............ .... .. .... 46
GPS controlled clock .. .... .. .. .. .. .. .. 12
Gross Vehicle Weight Rating (GVWR) ... 272
Ground clearance .................. . 199
H
Headlights
Cleaning ... ..... .. ............... 205
Cleaning system . . . . . . . . . . . . . . . . . . . . 53
Defective . . . . . . . . . . . . . . . . . . . . . . . . . 21
Headlight range control ............ . 22
Left hand drive, right hand drive .. .. .. . 49
Travel mode . . . . . . . . . . . . . . . . . . . . . . . 49
Headlight washer reservoir ......... .. 228
Head restraints .. .. .......... ....... 132
Adjusting . . . . . . . . . . . . . . . . . . . . 61, 132
Removing/installing .............. .. 61
Heated exterior mirrors . . . . . . . . . . . . . . . . . . . . SO
rear window . .. .. .... ........... .. . 78
seats ..... .. .. .. .... ............. . 78
windshield washer spray nozzles . . . . . . 53
Heating ......... ... ..... ........... 76
Heavy clothing and saf ety belts ....... . 141
High beam .. .. .. .. .. . ... .. ..... .... . 48
High voltage warning label .. ....... .. 272
Hill descent control .................. 95
Homelink (remote control) ......... .. 124
Hood Opening .. .. .. .. .... ............. 214
Release lever . . . . . . . . . . . . . . . . . . . . . 214
Hooks ............................. 72
Horn .. .... .. .... ..... ... ... ... ... .. 8
How are child restraint system anchors re-
la ted to child safety ........... .. .... 181
How many airbags does my vehicle have? 153
How often should I check my tire pres-
sures? 238
How safe ty bel t pre ten sioners work .. .. 144
Hydroplaning ..... .. ............... 240
I
Ignit ion
switching on/off .. ...... .. .. ... .... . 80
Ignition key Emergency unlocking .......... .... .. 35
Ignition lock .. .. .. ...... .. ... ...... . 80
Indic ato r light . .. ........... ...... . 18
Mal func tion . . . . . . . . . . . . . . . . . . . . . . . 22
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 12
•
•

28 6 Index
Impor tan t th ings to do before driving .. 1 28
Improperly worn safety belts ..... .. ... 144
Indicator lights ............ .. .. .. .. .. 13
Airbag system . . . . . . . . . . . . . . . 156, 157
Dy namic steering ...... ... .. .. .. .. . 191
PASSENGER AIR BAG OFF ........ .. . 157
also refer to Warn ing/ indicator l ights .. 13
Infant seats ... ............. .. .... . 173
I nflatable spare t ire ...... .. .. .. .. .. . 2S3
I nflating .... .... ..... ... .. .. .... . 254
Installing ch ild safety seats
Safety belts . . . . . . . . . . . . . . . . . . . . . . 177
Instal ling the upper tether strap on the
anchorage . .. ............... .. .... . 184
I nstruments
Adjusting the lighting ... .. .. .... .. . . 50
I nstruments and contro ls ... .. .. .. .. . . 10
Gene ral illustration ..... .. .. .. .. .. . .. 8
Interior lights Front .. .. .. ................ ... ... . 50
Rear .. .... .......... ...... ... .. .. 50
Intermittent (windshield wipers) . . . . . . . 53
J
Jump-starting 266
Jumper cables ................ ... ... 267
K
Key .... ... .. ................ ... .. .. 33
Battery replacement . . . . . . . . . . . . . . . . 34
Check light . . . . . . . . . . . . . . . . . . . . . . . . 34
E mergency key . . . . . . . . . . . . . . . . . 33, 82
I gnition/engine on/off . . . . . . . . . . . . . . . 80
Key replacement .... ... .. .. .. .... .. 33
Mechanical key . . . . . . . . . . . . . . . . . 33, 34
removing . . . . . . . . . . . . . . . . . . . . . . . . . 82
un locking/locking . . . . . . . . . . . 35, 36, 38
Kick-dow n . . . . . . . . . . . . . . . . . . . . . . . . . . 96
L
Lane Change Ass istant
refer to side assist ........ .. .. .. .. . 109
LATC H .. .. .. ............. .. .. .. ... 181
Descr ipt ion .... .... ...... .. .. .. .. . 182
Install ing a child restraint ...... .. ... 182 Location .
..... .. ... .. ..... ... .. .. 181
Mounting and releasing the anchorage
hook ... .. .. .. .. ... .. ..... ... .. .. 182
Launch Control Prog ram ....... .. .. .. . 97
Leather cleaning/protect io n .. .. .. .. .. 207
Leav ing home ..... ... .. ..... ... .. .. . 48
Left hand drive .. .. ..... ........... .. 49
Lifting jack . .... .. ............. .... 257
L ifting vehicle ... .. ............. .... 270
Light adaptive light .. .. ................ .. 47
Coming/Leav ing home ........ .. .. .. . 48
Daytime runn ing lights . . . . . . . . . . 47, 48
E xterior lig hting . . . . . . . . . . . . . . . . 47, 48
F og lights/rea r fog light(s) . ... .. .. .. . 47
Interior/reading . . . . . . . . . . . . . . . . . . . . 50
Low beam ..... .. ... .. ..... .... . .. . 47
Rear fog lights . .. ... .......... .. .. . 47
S ide marker lig hts ............. .... . 47
Trave l mode . . . . . . . . . . . . . . . . . . . . . . . 49
Light/rain sensor Headlights . ..... .. ... ..... ... .. .. . 47
I ntermittent (w indshield w ipers) . .... . 53
Sen sor defe ctive . . . . . . . . . . . . . . . . . . . . 22
Lights
Emergency flashe rs ..... .... ... .. .. . 49
High beam .... .. .. ... ..... ... .. .. . 48
Tu rn signals ... ... ................ . 48
Locking Rea r lid ... .... .. .. .... .... ... .. .. . 39
Locking/unlock ing
at the lock cy linder . . . . . . . . . . . . . . . . . . 38
by remote control ............. .... . 35
with the centra l locki ng switch ... .... . 36
with the conven ience key . . . . . . . . . . . . . 36
Low beams ..... .. ..... ........... .. 47
Lower anchorage locator button ... .. .. 182
Lower unive rsal anchorage bars (Canada) 181
Lower universal anchorages (Canada) 181
Luggage Stowing . ..... .. ... .. ..... .... . .. 134
Luggage compartment . . . . . . . . . . . . . . . . 68
Cargo ne t ... .. .. ............. .. .. . 71
Cover ... .. .... .. .. .... .... ... .. .. . 69
Enlarging . . . . . . . . . . . . . . . . . . . . . . . . . 69
Floor ... .. .... .. .. .... .... ... .. .. . 74
L id ....... .... .. ................. . 39