2018 AUDI S4 Gas

Checking and Filling
Charging the vehicle battery
Fig. 272 Engine co mpa rtment : connec tors for a c harger
and jump start cab le s
Req uirement: only use chargers with a m aximum
c hargi ng vo lta ge of 30 amp s/14.8 Volt s.
The
vehicle battery cables remain connected .
.,. Read the warnings c> .&. in General warnings
about batteries on page 331
and c> ,&. .
.,. Switch off the ignition and all electrical equip ­
ment .
.,. Open the hood 9 page 324 .
.,. Open the red cover on the positive terminal
c>fig. 272 .
.,. Clamp the charger terminal clamps to the jump
s ta rt pin s
according to the instruct ions . (pin
under the red cover = "positive ", p in with hex­
agonal head= "negative ") .
.,. Inse rt the powe r cable for the charg ing device
i nto the socke t and switch the dev ice on .
.,. At the end of the charging process , switch the
charger off and pull the power cab le out of the
socket .
.,. Remove the charger terminal clamps.
.,. Close the red cover on the positive terminal.
.,. Close the hood c> page 324 .
A WARNING
-A highly explosive mixtu re of gases can form
when cha rging batter ies. On ly charge the
vehicle batte ry in well-ven tilated areas.
- A drai ned vehicle battery can freeze at tem­
peratu res a round 32
QF (0 QC). A froze n or
thawed veh icle bat tery must not be charged
and must not be used anymore. The ba ttery
housing can crac k and battery acid can leak
o ut if ice forms, wh ich increases the r isk of
an exp losion and chemical burns. Contact an
332
author ized Audi dealer or authorized A udi
Service Facility for more information.
- Do not connect or disconnect the charging
cable whi le charging because this increases
the risk of an explos ion.
@ Tips
- Only charge the vehicle battery t hrough the
connect ions in the engine compartme nt.
- Read all of the manufacturer's instructions
for the charger before charging the vehicle
battery.
Windshield washer system
Fi g. 2 7 3 Engine compar tm ent: washer flui d res ervoir cap
The windshield washer fluid reservoir¢ contains
t he cleaning solution for the windshield and th e
headlight washer system *
c> page 325, fig. 268 .
The reservoir capaci ty can be found in
c> page 381.
To reduce the risk of lime scale deposits on the
spray no zzles, use clean water with low amounts
of calcium . Always add w indow cleaner to the wa­
ter . When the outside temperatures are cold, an
anti -freezing agent should be added to the water
so that it does not freeze .
(D Note
-The concentration o f ant i-freez ing agent
must be adjusted to the ve hicle operat ing
conditions in the respective climate . A con­
cent ration t hat is too high can lead to vehi­
cl e damage.
- Never add radiator anti-freeze or other addi­
t ives to the washer fluid.

Wheels
Model/ Tire designation Tire pressure
Engine Normal load
Maximum load
(up to 3 people)
front rear front rear
PSI kPA PSI kPA
PSI kPA PSI kPA
225 /50 Rl 7 94H
30 210 28 190 32 220 32 220
A4 sedan: All Season
2 .0L 245
/40 R18 93Y
30 21 0 28 190 32 22 0 32 220
4-cylinder High Performance
( 190 hp )
245/40 R18 97H
35 240 32 220 35 240 35 240 Gasoline All season
engine 245/35 R19 93Y
35 240
32 220 36 250 39 270 High Performan ce
225 /50 Rl 7 94H
30 21 0 28 190 35 240 35 240
A4 sedan : All Season
2.0L 245/40 R18 93Y
30
210 28 190
33 230
33 230
4-cyl
inder High Performan
ce
( 252 hp )
245/40 R18 97H
3 5 240
32 220 36 250 36 250 Gasoline
All season
engine 245/35 R19 93Y
36 250 33 230 41 28 0 44 300 High Performance
225/50 Rl 7 94H
32 220 29 200 36 250 36 250 All Season
A4 sedan :
245 /40 R18 93Y
2 10 28 190 3 3 230 33 230
30 2.0L
High Performance
4 cylinders
245/40 R18 97H
32 220 36 250 36 250 Diesel en-35 240 All season
gine
245/35 R19 93Y
270 42
290
35 240
32 220 39
High Performan ce
S4 sedan: 245 /40 R18 97Y
3 6 2 50 33 230 3 8 260 3 8 260 3.0 liter High Performance
6-cyl inder
245/40 R18 97H
35 240
32 220
36 250
36 250 Gasoline
All season
engine 245/35 R19 93Y
39 270 35 24
0 44
300 45 3 10 High Performance
allroad: 225/55 R17 97Y
3
2 22 0 29 200 33 230 30 2 10
2 .0L High Performance
4 cylinder s 245/45 R18 96Y
32 220 29 200 35
240
32 220
Gasoline High Performan
ce
engine 245/45 R18 l00H
3 2 220 3 2 220 35 24 0 35 2 40 and
All Season
diesel en- 245/40 R19 98Y
35 240 32 220 38 260
35 2
4 0 gine
High Performance
346

a co .... N ,....
N .... 0 0
3 co
Fuse panel © (brown)
4 Audi side assist
8 Smart module (tank)
11 12 Volt battery
12 Homelink
13 Rearview camera, peripheral cameras
14 Right tail lights
16 Right safety belt tensioner
Fuse panel © (red)
No . Equipment
2 Sound-amp
lifier
3 AdBlue heating
5 Trailer hitch (right light)
7 Trailer h
itch
8 Trailer hitch (left light)
9 Trailer h itch (socket)
10 Sport differential
11 AdBlue heating
Bulbs
Replacing light bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace any bulbs for
you.
It is becoming increasingly more and more diffi­
cult to replace vehicle light bulbs since in many
cases, other parts of the car must first be re­ moved before you are able to get to the bulb.
This applies especially to the light bulbs in the
front of your car which you can only reach
through the engine compartment.
Sheet metal and bulb holders can have sharp
edges that can cause serious cuts, parts must be
correctly taken apart and then properly put back
together to help prevent breakage of parts and
l ong term damage from water that can enter
housings that have not been properly resealed.
For your safety, we recommend that you have
your author ized Audi dealer replace any bulbs for
you, s ince your dealer has the proper tools, the
correct bulbs and the expert ise.
Fuses and bulbs
Gas discharge lamps (Xenon lights) :
Due to the high e lectr ical voltage, have the bulbs
replaced by a qualified technician. Headlights
with Xenon light are identified by the high volt­
age sticker .
LED headlights*
LED headlights require no maintenance. Please
contact your authorized Audi dealer if a bulb
needs to be replaced .
.&, WARNING
Changing Xenon lamps without the necessary
equipment can cause serious personal injury.
- Bulbs are pressurized and can explode when
be ing changed. Potential risk of injury!
- On veh icles equipped with gas discharge
bu lbs (Xenon light) life-threatening injuries
can resu lt from improper handling of the
h ig h-vo ltage portions of such lamps!
- Only your authorized Audi dealer or quali­
fied workshop should change the bulbs in
gas discharge lamps. There are parts with
sharp edges on the openings and on the
bulb holders that can cause serious cuts. If
you are uncertain about what to do, have the work performed by an authorized Audi
dealer or qualified workshop. Ser ious per­
sonal injury may result from improperly per­
formed work.
(D Tips
- If you st ill prefer to replace the light bulbs
yourself, be aware that the engine compart­ ment is a hazardous area to work
in¢ A in
Working in the engine compartment on
page 323.
- It is best to ask your authorized Audi dealer
whenever you want to change a bulb .
373

Emergency situations
Emergency situations
General
This chapter is intended for trained emergency crews and working personnel who have the nec­
essary 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 con be started by con­
necting it to the battery of another vehicle.
If the engine should fail to start because of a dis­
charged or weak battery, the battery can be con­
nected to the battery of
another vehicle, using a
pair of jumper cables to start the engine.
Jumper cables
Use only jumper cables of sufficiently large cross
section
to carry the starter current safely. Refer
to the manufacturer's specifications.
Use only jumper cables with
insulated terminal
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 in­
jury. Follow the instructions below for
safe
handling of your vehicle's battery.
-Always shield your eyes and avoid leaning
over the battery whenever possible.
-A dead battery can freeze at temperatures
around 32 °F (0 °C) . If the vehicle battery is
frozen, you must thaw it before connecting
the jump start cables.
If you do not, this in-
374
creases the risk of an explosion and chemi­
cal burns. After jump starting the vehicle,
drive to an authorized Audi dealer or author­ ized Audi Service Facility immediately to
have the vehicle battery checked.
- 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 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 also
have a 12-Volt rating. The capacity (Ah) of
the booster battery should not be lower
than that of the discharged battery. Use of
batteries 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 batteries of different voltage or sub­
stantially different capacity (Ah) rating may
cause an explosion and injury. The capacity (Ah) of the booster battery should not be
lower than that of the discharged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS
r=:> poge 323.
([) Note
-Applying a higher voltage booster battery
will cause expensive damage to sensitive electronic components, such as control
units, relays, radio, etc.
- There must be no electrical contact between
the vehicles as otherwise current could al­
ready start to flow as soon as the positive
(+) terminals are connected.

@ Tips
The discharged battery must be properly con­
nected to the vehicle's electrical system .
When jump starting or charg ing the battery,
never connect the negative ground cable to
the battery negative post because the battery
manager system must be able to detect the
battery's state of charge. Always connect the
negative ground cable to the negative ground
post of the battery manager control unit.
Using the jump start
cable
Both jump start cables must be connected in the
correct order!
Fig. 295 Engine compartment: connec tors for jump start
cables and a charger
Fig. 296 Ju mp starting us ing a battery in another vehicle:
@ -providing current, @-drained
The procedure described below for connecting
jumper cables is intended to prov ide a jump start
for your vehicle .
Vehicle with discharged battery
•Turnoff lights and accessories, move the auto­
matic transmission* selecto r lever to N (Neu­
tral) or P (Par k), and set the park ing brake.
Emergency situations
Connecting the positive cable (red) to the
positive terminal
• Open the red cover on the positive terminal
c:>fig. 295 .
1. Secure one end of the positive cable (red) to
the jump start pin
c:> fig. 296 (D (pin under
the red cover = "posit ive") on the vehicle that
needs to be started @.
2. Secure the other end of the positive cable
(red) to the positive termina l@ on the
bat­
tery provid ing the current @.
Connecting the negative cable (black) to the
negative terminal
3. Secure one end of the negative cable (black)
to the nega tive term inal @ on the battery
that is providing the current @.
4. Secure the other end of the negative cable
(black) to the jump start
pin @ (hex head pin
= "negative") on the vehicle that needs to be
started @.
Starting the engine
• Start the engine on the vehicle providing the
jump start @and let it run at idle.
• Now start the engine on the vehicle with the
drained battery @.
• If the engine does not start, stop the starting
procedure after 10 seconds and then repeat it
after approx imately 30 seconds.
• Remove the cables when the engines are run­
ning. Remove them in reverse order from the
way they were installed.
• Close the red cover on the positive terminal.
T he battery is vented to the outside to prevent
gases from enter ing the vehicle interior . Make
sure that the jumper clamps are well connected
with their
metal parts in full contact with the
battery terminals.
_& WARNING
-To avoid serious personal injury and damage to the vehicle, heed all warnings and instruc ­
tions of the jumper cable manufacturer. If in
doubt, call for road service.
-Jumper cables must be long enough so that
the vehicles do not touch .
..,_
375

Emergency situations
-When connecting jumper cables, make sure
that they cannot get caught in any moving
parts in the engine compartment.
-Do not bend over the batteries -danger of
chemical burns!
-The battery cell locking screws must be
tightened securely.
-Before you check anything in the engine
compartment, always read and heed all
WARNINGS
c> page 323.
(D Note
Improper hook-up of jumper cables can ruin
the generator.
- Always connect POSITIVE(+) to POSITIVE
(+), and NEGATIVE(-) to NEGATIVE(-)
ground post of the battery manager control
unit.
- Check that all screw p lugs on the battery
cells are screwed in firmly. If not, tighten
plugs prior to connect ing clamp on negative
battery terminal.
-Please note that the procedure for connect ­
i ng a jumper cable as described above ap­
plies specifically to the case of your vehicle
being jump started . When you are giving a
ju mp start to another vehicle, do
not con­
nect the negative (-) cable to the negative
(-) terminal on the discharged batte ry @
c> fig. 296. Instead, securely connect the
negative( -) cab le to either a solid metal
component that is firm ly bolted to the en­
gine block or to the engine block itself. If
the battery that is being charged does not
vent to the outside, escap ing battery gas
could ignite and explode!
Towing with a tow truck
General hints
Your Audi requires special handling for towing.
The following information is to be used by com­
mercial tow truck operators who know how to op­
erate the ir equipment safely.
-Never tow your Audi, towing will cause dam­
age to the engine and transmission.
376
-Never wrap the safety chains or winch cables
around the brake lines .
- To prevent unnecessary damage, your Audi
must be transported with a flat bed truck .
- 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
i:>page 376 and i:>page 377 .
A WARNING
A vehicle being towed is not safe for passen­
gers. Never allow anyone to ride in a vehicle
being towed, for any reason.
Front towing loop
Only install the front towing loop when it is
needed.
Fig. 297 F ront bumper: installing the towing loop
The threaded opening for the towing loop is lo­
cated on the right s ide of the front bumper.
.,. Remove the towing loop from the vehicle too l
ki t
c> page 360 .
.,. Press the cap inward with brief, forceful p res­
sure
c> fig. 297 . The cap will loosen from the
bumper .
.,. Insert the towi ng loop all the way into the
threaded opening and tighten it with a wheel
wrench.
.,. After using, place the towing loop back in the
vehicle tool kit .
A WARNING
If the towing loop is not tightened until it
stops when installing, the threads may be
pulled out when towing the vehicle and that
could cause an accident.
-

a co ..... N ,....
N ..... 0 0
3 co
Capacities
Fuel tank, front wheel drive
Fuel tank, all wheel drive
Windshield and headlight washer system*
Gasoline engines
A4 Sedan 2.0, 4 cylinder (190 hp)
Maximum output SAE net
Maximum torque SAE net
Displacement
Engine oil with filter change
1 )
Fuel
A4 Sedan 2.0, 4 cylinder (252 hp)
Maximum output SAE net
Maximum torque SAE net
Displacement
Engine oil with filter changell
Fuel
S4 Sedan 3.0, 6 cylinder
Maximum output SA E net
Maximum torque SAE net
Displacement
Engine oil with filter change
1
)
Fuel
allroad 2.0, 4 cylinder
Maximum output SA E net
Maximum torque SAE net
Displacement
Engine oil with fil ter change
1
)
Fuel
Techn ical data
Approximate capaci-
ties
14.3 gal (54 L)
15.3 gal (58 L)
5.1 qt (4.8 L)
hp@ rpm 190@ 4200 -6000
l b-ft@ rpm 236@ 1450 -4200
CID (cm
3 ) 121 (1984)
q page 315, Gasoline
hp@ rpm 252@ 5000 -6000
l b-ft@ rpm 272@ 1600 -4500
CID (cm
3 ) 121 (1984)
q page 315, Gasoline
hp@ rpm 3 54 @ 5400 -6400
lb-ft@ rpm 369@ 1370 -4500
CID (cm
3 ) 182 (2995)
q page 315, Gasoline
hp@ rpm 252@ 5000 - 6000
lb-ft@ rpm 272@ 1600 - 4500
CID (cm
3 ) 121 (1984)
q page 315, Gasoline
381

Index
Audi p re sense . . . . . . . . . . . . . . . . . . . . . . . 120
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Sett ings . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Aud i Serv ice Repair Ma nuals and Literature 383
Aud i side assist . . . . . . . . . . . . . . . . . . . . . . . 128
Aud i smartphone interface . . . . . . . . . 246, 250
Aud i virt ua l cockp it
refer to Instr ume nt cl uster . . . . . . . . . . . . . 10
AUTO Automatic headlights . . . . . . . . . . . . . . . . . 54
Auto Lock (centra l locki ng system) . . . . . . . . 37
Automatic belt ret ractor . . . . . . . . . . . . . . . 266
Automatic climate control . . . . . . . . . . . . . . . 76
Aud i drive select. . . . . . . . . . . . . . . . . . . . . 134
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Automatic climate control system Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Automatic transm ission . . . . . . . . . . . . . . . . . 9 1
E me rgency prog ram . . . . . . . . . . . . . . . . . . 96
Hill descent contro l . . . . . . . . . . . . . . . . . . . 94
Kick -down . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Launch control program . . . . . . . . . . . . . . . 95
Manual sh ift ing . . . . . . . . . . . . . . . . . . . . . . 94
Parking lock emergency re lease . . . . . . . . . 97
Selector lever pos itions . . . . . . . . . . . . . . . . 91
Automatic wipe/wash system . . . . . . . . . . . . 60
Auto Safety Hotline . . . . . . . . . . . . . . . . . . . 26 1
AUTO (button) Automatic climate control . . . . . . . . . . . . . . 78
Auxiliary heater (automatic climate control) 79
AUX input . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Average consumption . . . . . . . . . . . . . . . . . . . 17
Ave rage spee d . . . . . . . . . . . . . . . . . . . . . . . . 17
B
BACK button . . . . . . . . . . . . . . . . . . . . . . . . . 155
Balance (sound) . . . . . . . . . . . . . . . . . . . . . . 252
Bass (sound) . . . . . . . . . . . . . . . . . . . . . . . . . 252
Ba tte ry
J u mp starting . . . . . . . . . . . . . . . . . . . . . . . 374
also refer to Veh icle bat tery . . . . . . . . . . . 33 1
Before driving . . . . . . . . . . . . . . . . . . . . . . . . 254
Belt tensione rs . . . . . . . . . . . . . . . . . . . . . . . 269
Blended gasoline . . . . . . . . . . . . . . . . . . . . . 315
Blower (automatic cl imate control) . . . . . . . . 78
388
B luetoot h
Audio player . . . . . . . . . . . . . . . . . . . . . . . . 230
Connect ing a cell phone . . . . . . . . . . . . . . 175
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 2SO
Boost...... .. .. .. .. .. ............. ... 11
Booster seats . . . . . . . . . . . . . . . . . . . . . . . . 305
Boost pressure indicator . . . . . . . . . . . . . . . . 11
B rake fl uid
Check ing the b rake fluid level . . . . . . . . . . 330
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Brake ass ist . . . . . . . . . . . . . . . . . . . . . . . . 146
B rake fl uid . . . . . . . . . . . . . . . . . . . . . . . . . 330
El ec trome chanical parking b rake . . . . . . . . 88
E mergency b raking function . . . . . . . . . . . . 88
New brake pads . . . . . . . . . . . . . . . . . . . . . 149
Worn brake pads . . . . . . . . . . . . . . . . . . . . . 33
Breaking in New bra ke pads . . . . . . . . . . . . . . . . . . . . . 149
New engine . . . . . . . . . . . . . . . . . . . . . . . . . 80
New t ires . . . . . . . . . . . . . . . . . . . . . . . . . . 3 41
Browser
refer to M edia center . . . . . . . . . . . . . . . . . 237
Bu lbs ............................... 373
Buttons Cont ro l panel (M MI) . . . . . . . . . . . . . . . . . 155
Multifunctio n steering whee l . . . . . . . . 13, 16
P rogramming (multifunction steering
whee l) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
C
Cable ( USB adapter/AUX connector cab le) 233
Californ ia Pr opos ition 65 Wa rning . . . . . . . 3 24
Battery specific . . . . . . . . . . . . . . . . . . . . . 331
Call list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Call options . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Capacities AdBl ue ... .. .. .. .. .. ... .......... .. 319
Fuel t ank . . . . . . . . . . . . . . . . . . . . . . . . . . . 381
Washer fluid reservoir . . . . . . . . . . . . . . . . 381
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354
Cargo area
refer to Loading the luggage compart-
ment .............................. 259
C atalytic converter . . . . . . . . . . . . . . . . . . . . 322
CD d rive (med ia d rives) . . . . . . . . . . . . . . . . 229