2020 AUDI S4 engine coolant

Table of contents

About this Owner's Manual......
SUMIMALY: ; « ss6% : osen ss sean cs poe s
QC CCeS Skis: si esis a 6 ores os ewe
Cockpit... 2... ee eee eee eee
Indicator lights overview...........0.
Display and operation............
Instrument cluster...............
Instrument cluster overview...........
Operating. ecco ws swacemn o © aero o erm 9
Adjusting the display.................
Coolant temperature display...........
Tachometer’. series s ewie so sie ¥ & overs
Odometer............ 0. cee eee eee eee
Outside temperature display...........
Engine oil temperature indicator.......
Boost indicator...............0--000-
Vehicle TuNCtiONnS ¢ ssc. ss sees ge eeew ge
Touch display.....................
General touch display operation........
Multi Media Interface................
Head-up display..................
DeSériptlonis ss wees « x wees so eee + ee
Voice recognition system........
Generalinformation.................
Operating’ « esses ss assur wx aeuew sv ewe &
External voice operation..............
Global FuUNCtiONS:. icc: 6 6 ese. 6 6 ces
Additional function buttons...........
Starting and driving.............
Personalization..................
Opening and closing.............
Central locking........-.....00-e eee
Child safety lock.............00.-0 08
Power Wind OwWSics «seus ys sms 5 4 wee
Sliding/tilting sunroof................
Panoramic glass roof.................
NOD
OO
12
16
16 18
20
23
24 24 24
25
26
26
27 27 27 30 30
34
36
41 42 43
44
Valetiparking = s sssec 2 x ence a cures oe oe 44
Garage door opener..........--.00 eee 45
Lights and Vision................. 48
Exterior lighting...................0. 48
Interior ligQhting ss =e aves sy cows so owas $1
ViSIOM a « 3 sees 2s oman 2 mena = HOR © oe 52
Windshield wipers................05- 55
Digital compass..............--.0000- 57
Sitting correctly and safely...... 59,
Correct passenger seating position...... 59
FrontS@ats:: 2 ss«s < = scws ¢ » sees + = eee e 59
Steering wheel sie < «cries + eee ss oeree 62
Head restraints..................000. 63
Safety DEltS': < sews + x neue 3 e eas Fe Hae 64
Memory function . « scion ss cee ve ero ee 67
Airbag system... .. 2.6... eee eee eee 67
Child
safety seats...............-000- 72
Stowing and using............... 78
POWEPFSOUICES csisu ¢ ¢ avons 8 Baws 2s Re 78
Gup holders'. ¢ scr 2 + wen 2 = wee 2 oe een 78
Storage areas and compartments....... 78
Luggage compartment............... 79
ROOf FaGK:: « = seve x ¢ saws 2 & noes 2 8 ewe es 86
Warm and cold.................65 87
Climate control system.............0. 87
3-zone deluxe automatic climate control. 88
Steering wheel heating............... 90
Fluids in the A/C system. .........0005 91
Driving.................. 00... eee 92
Startifiathe vehicle ian x x cats go wews 92
Whe nd riving isis ss iosvie so ce eo ane eee 93
Drive system... 2.2... ee eee eee 98
Start/Stop SysteM ; 00. s sees cece eee 99
Brakes’: so isemwe o eames av omceme 2 2 mess 6 ase 101
Electromechanical parking brake....... 102
Special driving situations.............. 104
Driving: dynamic. . . si... 6 6 ees 2 6 one 106
Audi drive select...............000005 106
SUSPENSION = « = exes ¢ ¢ eres 6 & teers + = ee 106
SUCOKIING 6 wvessse oo csisweus a & saosine 6 7 arexiKe WB 107

8W1012721BB
Instrument cluster


Fig. 3 Instrument cluster overview (analog)

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Depending on the vehicle equipment, the follow- —Gear ... ee eee eee eee 94
ing items may appear in the instrument cluster: — Audi drive select mode ......... 106
@ Left dial Display
7 PACHOIMIBEER 2 csre «2 eases 2 2 eee 13 — Engine coolant temperature =E . . 13
Tab afd) : see cs cae : 2 aes 2 eee 12
) Status line (one or two lines)
5) Right dial
— Convenience display
Fuellevel ..........0.00.0008
Right additional display with speed-
ometer
(®) Left additional display with:


12 |Z WARNING
Applies to: vehicles with Audi virtual cockpit
If there is a severe malfunction in the instru-
ment cluster, the display may turn off. The
indicator
light may also turn on. Stop the ve-
hicle safely. See an authorized Audi dealer or
authorized Audi Service Facility for assistance. |>

211
11

8W1012721BB
Instrument cluster

Switching the view
Applies to: Audi virtual cockpit
> Press the VIEW button to switch between the
default view @ and the enhanced view (2).
Adjusting the layout
Applies to: Audi virtual cockpit
Depending on the vehicle equipment, various lay-
outs may be available.
> Applies to: MMI: Select on the home screen:
SETTINGS > Display & brightness > Virtual
cockpit.
> To adjust the desired layout, press @).
Adjusting the additional display
Applies to: Audi virtual cockpit
Depending on the vehicle equipment, the addi-
tional displays that can be selected may vary.
> Applies to: MMI: Select on the home screen:
SETTINGS > Display & brightness > Virtual
cockpit > Configure.
> Select the desired additional display.
Reducing the display
Depending on the vehicle equipment, you can
hide the central area in the instrument cluster.
>» Select on the instrument cluster: vehicle func-
tions tab > EE] button > Reduced display, or
> Press the VIEW button on the multifunction
steering wheel.
Coolant temperature
display
Applies to: vehicles with analog instrument cluster
The coolant temperature display @) > page 11
only functions when the ignition is switched on.
To reduce the risk of engine damage, please ob-
serve the following notes about the temperature
ranges.
Cold range
If only the LEDs at the bottom of the gauge turn
on, the engine has not reached operating tem-
perature yet. Avoid high engine speeds, full accel-
eration, and heavy engine loads.
Normal range
The engine has reached its operating tempera-
ture once the LEDs up to the center of the gauge
turn on. If the i] indicator light in the instru-
ment cluster display turns on, the coolant tem-
perature is too high > page 220.
@) Note
— Auxiliary headlights and other accessories in
front of the air intake impair the cooling ef-
fect of the coolant. This increases the risk of
the engine overheating during high outside
temperatures and heavy engine load.
— The front spoiler also helps to distribute
cooling air correctly while driving. If the
spoiler is damaged, the cooling effect will
be impaired and the risk of the engine over-
heating will increase. See an authorized
Audi dealer or authorized Audi Service Fa-
cility for assistance.
Tachometer
The tachometer @) 9 page 11 displays the engine
speed in revolutions per minute (RPM). The be-
ginning of the red zone in the tachometer indi-
cates the maximum permissible engine speed for
all gears once the engine has been broken in. Be-
fore reaching the red zone, you should shift into
the next higher gear, select the "D" or "S" selec-
tor lever position, or remove your foot from the
accelerator pedal.
Engine speed limitation
If the Bw indicator light turns on, the engine will
be automatically limited to the RPM displayed in
the instrument cluster. This will protect the en-
gine components, for example during a cold start
or from overheating.
The engine speed limitation will be deactivated
once the engine has reached its normal operating
temperature and you have released the accelera-
tor pedal.
If the engine speed limitation was activated by
an engine control malfunction, the By indicator
light also turns on. Make sure the engine speed
does not go above the speed displayed, for
13
>

Warm and cold

The maximum amount of air flows mainly from
the vents below the windshield. Recirculation
mode switches off. The temperature should be
set at +72°F (+22°C) or higher. The temperature
is controlled automatically.
You can switch the defroster on or off using the
& button. You can switch the function off by
pressing a knob (4).
@ Rear window defogger
The rear window defogger only operates when
the engine is running. It switches off automati-
cally after 10 to 20 minutes, depending on the
outside temperature.
To prevent the rear window defogger from
switching off automatically, press and hold @ for
more than three seconds. This is stored until the
ignition is switched off.
Vents
You can open or close the center and rear vents in
the cockpit and the vents in the rear center con-
sole using the ridged thumbwheels. The levers
adjust the direction of the airflow from the vents.
Residual heat
You can activate the residual heat function when
the ignition is switched off by pressing the knob
@ (left side). The residual heat from the coolant
is used to heat the vehicle interior. The residual
heat function switches off automatically after
about 15 minutes.

ZA WARNING
— You should not use the recirculation mode
for an extended period of time, because no
fresh air is drawn in and the windows can
fog when cooling mode is switched off. This
increases the risk of an accident.
— Individuals with reduced sensitivity to pain
or temperature could develop burns when
using the seat heating* function. To reduce
the risk of injury, these individuals should
not use seat heating”.

90
C@) Note
To reduce the risk of damage to the seat heat-
ing* elements, do not kneel on the seats or
place heavy pressure on one area of the seat.

Additional settings
Applies to: vehicles with 3-zone deluxe automatic climate
control system
You can adjust additional settings.
> Applies to: MMI: Select on the home screen:
VEHICLE > Climate control.
Auto recirculation
When switched on, automatic recirculation con-
trols the recirculation mode automatically. You
must press the §& button if fog forms on the win-
dows.
Steering wheel heating
Siem eRe
Applies to: vehicles with steering wheel heating
> Press the @ button on the multifunction steer-
ing wheel to switch the steering wheel heating
on and off.
G) Tips
The steering wheel heating settings are stor-
ed automatically and assigned to the vehicle
key that is in use.
Applies to: vehicles with steering wheel heating
@ Steering wheel heating: on/Steering wheel
heating: off
This message appears if you switched the steer-
ing wheel heating on or off by pressing the but-
ton on the multifunction steering wheel.
Steering wheel heating: malfunction! See own-
er's manual
If this message appears, there is a malfunction.
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.

Trailer towing

Trailer towing
Driving with a trailer
ere eleurl lela)
Your vehicle is primarily intended for transport-
ing people and luggage. However, if you drive
with a trailer, follow the technical requirements,
the operation and driving tips, and the legal reg-
ulations.
Driving with a trailer affects the vehicle's energy
usage, performance, and wear. It also requires
higher concentration from the driver.

Z\ WARNING
Do not transport any people in a trailer due to
the risk of fatal injury.
Technical requirements
Certain requirements must be met when towing
a trailer.

Trailer hitch
Only use a trailer hitch with a removable ball
hitch mount and ball hitch. The trailer hitch must
be permitted for the vehicle, the trailer and the
permitted total weight of the trailer being
pulled. Above all, it must be securely and safely
attached to the vehicle trailer.
Never mount a trailer hitch on the bumper. The
trailer hitch must be mounted in a way that does
not impair the function of the bumper. Do not
make any changes to the exhaust system and the
brake system.
Check regularly if the trailer hitch is securely
mounted. Always follow the instructions given by
the trailer hitch manufacturer.
Trailer brakes
If the trailer has its own brake system, then fol-
low the manufacturer specifications. However,
the brake system on the trailer must never be
connected to the vehicle brake system.
112
Engine cooling system
Driving with a trailer means a higher load on the
engine and the cooling system. The cooling sys-
tem must be designed for additional load and
contain enough coolant > ©.
() Note
Longer inclines cannot be driven without a
suitable cooling system, especially if the out-
side temperatures are high. Otherwise, this
increases the risk of engine damage.
Operating instructions
Towing capacity
Your vehicle can only be operated with class 1 or
class 2 trailers.
Load distribution
Poor cargo load and distribution can negatively
impact vehicle handling. Load the trailer based
on the following criteria as much as possible:
— Store objects in the vehicle luggage compart-
ment, if possible. The vehicle should always
carry the heaviest possible load and the trailer
should have the lightest possible load.
— Distribute the load in the trailer so that the
heavy objects are as close to the axle as possi-
ble.
— Secure objects so that they do not slide.
— Utilize the maximum permitted tongue weight
if possible.
Tires
Set the tire pressure on your vehicle for a “full
load”; see the tire pressure sticker > page 237. If
necessary, also adjust the tire pressure on the
trailer according to the manufacturer's specifica-
tions.
The trailer and the vehicle should be equipped
with winter tires when driving in winter tempera-
tures.
Outside mirrors
If you cannot see the traffic behind the trailer
with the standard exterior mirrors, then you
must attach additional exterior mirrors. Adjust >

8W1012721BB
Trailer towing

them so you have a sufficient visibility behind
you.
Exterior lighting
Follow the legal regulations for lighting on your
trailer that are applicable in the country where
you are operating the vehicle. Contact an author-
ized Audi dealer or authorized Audi Service Facili-
ty for more information.
Before you start driving, check all lighting equip-
ment on the trailer while it is hitched to the vehi-
cle.
The headlight range control automatically ad-
justs the light range of the headlights.
Safety chains
Make sure the safety chains are correctly applied
when pulling a trailer. The chains should hang
enough so that the trailer can drive around
curves. However, they must not touch the
ground.
@) Note
Attachments retrofitted on the vehicle may
cause damage, especially on the trailer hitch
ball head. In cases of damage, have the func-
tion checked by an authorized Audi dealer or
authorized Audi Service Facility.
@) Tips
— Block the wheels with chocks when parking
on inclines if the trailer is loaded.
— Having the vehicle inspected between the
inspection intervals is recommended if you
tow a trailer frequently.
— Avoid driving with a trailer during the vehi-
cle break-in period.
Driving with a trailer
Driving with a trailer requires extra caution.
Speed
Adhere to the legal speed limits. Follow the legal
regulations that are applicable in the country
where you are operating the vehicle.
As the speed increases, the driving stability of
the trailer decreases. Therefore you should not
exceed the maximum legal speed limit when
there are unfavorable road, weather, and/or wind
conditions. This especially applies when driving
downhill.
Hill
When you start driving uphill or downhill, trailers
may tilt or sway sooner than when driving ona
level surface. If small swaying movements have
already occurred, you can stabilize the trailer by
firmly braking immediately. Never attempt to
“straighten out” the trailer by accelerating.
Downshift before driving on hills to utilize the en-
gine braking effect > A\.
Brakes
When using a trailer with overrun brakes, first
brake gently then quickly. This reduces the risk of
jerking while braking if the trailer wheels lock up.
Engine coolant temperature
Pay attention specifically to the coolant tempera-
ture display when there are high outside temper-
atures, and when driving on long inclines
=> page 13. Shift to a higher gear in a timely man-
ner.

Z\ WARNING
Constant braking causes the brakes to over-
heat and can substantially reduce braking per-
formance, increase braking distance, or cause
complete failure of the brake system.

113

Checking and Filling

The indicator light can also turn on if the fuel fill-
er cap is not closed correctly > page 211).
Engine compartment
General information
Special care is required if you are working in the
motor compartment
For work in the motor compartment, such as
checking and filling fluids, there is a risk of in-
jury, scalding, accidents, and burns. For this
reason, follow all the warnings and general
safety precautions provided in the following in-
formation. The engine compartment is a dan-
gerous area in the vehicle. > A.


ZA WARNING
— Turn the engine off.
— Switch the ignition off.
— Set the parking brake.
— Select the “P” (Park) selector lever position.
— Allow the engine to cool.
— Keep children away from the engine com-
partment.
— Never spill fluids on a hot engine. These flu-
ids (such as the freeze protection contained
in the coolant) can catch fire.
— Avoid short circuits in the electrical system.
— Never reach into the radiator fan. The fan is
temperature-controlled and can turn on
suddenly, even when the ignition is switched
off.
— Never open the hood when there is steam or
coolant escaping from the engine compart-
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
— The cap on the coolant expansion tank must
never be opened when the coolant is hot.
The cooling system is under pressure. There
is a risk of burns
—To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
— Do not remove the engine cover under any
circumstances. This increases the risk of
burns.
— Due to the risk of electric shock, never touch
the ignition cable or other components in
the electronic high-voltage ignition system
when the engine is running or is starting.
— Ifa gear is engaged while the vehicle is sta-
tionary and the engine is running, do not
press the accelerator pedal inadvertently.
Pressing the accelerator pedal will cause the
vehicle to move, and this could result in an
accident.
— If inspections or repairs must be performed
while the engine is running, moving compo-
nents (such as the ribbed belt, generator,
and radiator fan) pose an additional risk.
— Set the parking brake first and select the
“P” (Park) selector lever position.
— Always make sure that no parts of the
body, jewelry, ties, loose clothing, and
long hair can be caught in moving engine
components. Before any work, always re-
move any jewelry and/or ties, tie back long
hair, and make sure all clothing fits close
to the body to reduce the risk of anything
becoming caught in engine components.
— Pay attention to the following warnings list-
ed when work on the fuel system or on the
electrical equipment is required.
— Do not smoke.
— Never work near open flames.
— Always have a working fire extinguisher
nearby.
— All work on the battery or electrical system
in your vehicle can result in injuries, chemi-
cal burns, accidents, or burns. Because of
this, all work must be performed only by an
authorized Audi dealer or authorized Audi
Service Facility.
— Limit your exposure to exhaust and chemi-
cals to as short a time as possible.




thick cloth when opening.


ZA\ WARNING
California Proposition 65 Warning:


1) Depending on the engine and country
214

8W1012721BB
Checking and Filling


— Engine exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali-
fornia to cause cancer and birth defects and
reproductive harm. In addition, certain flu-
ids contained in vehicles and certain prod-
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
— Battery posts, terminals and related acces-
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms.
Wash hands after handling.
Q Note
When filling fluids, be sure not to add any flu-
ids to the wrong reservoirs. Otherwise severe
malfunctions and engine damage will occur.


@ For the sake of the environment
You should regularly check the ground under
your vehicle in order to detect leaks quickly. If
there are visible spots from oil or other fluids,
bring your vehicle to an authorized Audi deal-
er or authorized Audi Service Facility to be
checked.
Opening and closing the hood
The hood is released from inside the vehicle.


Fig. 160 Footwell: release lever

Fig. 161 Unlocked hood: lever
Make sure the wiper arms are not raised up from
the windshield. Otherwise the paint could be
damaged.
Opening the hood
> With the door open, pull the lever > below
the instrument panel in the direction of the ar-
row > fig. 160.
> Raise the hood slightly > /A\.
> Press the lever > fig. 161 in the direction of the
arrow. This releases the hooks.
> Open the hood.
Closing the hood
> Push the hood down until you override the
force of the struts.
> Let the hood fall lightly into the latch. Do not
press itin. > AX.
Message
B Warning! Hood is not locked. Stop vehicle
and check the lock
The hood latch is not locked correctly. Stop im-
mediately and close the hood.

ZX WARNING
— Never open the hood when there is steam or
coolant escaping from the engine compart-
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
—For safety reasons, the hood must always be
closed securely while driving. Because of
this, always check the hood after closing it
to make sure it is latched correctly. The hood
is latched if the front corners cannot be lift-
ed. >

215