2020 AUDI S4 Tires Specification

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 >

Emergency assistance

The wheel bolts must be clean and loosen and
tighten easily. Check the contact surfaces for the
wheel and hub. Contaminants on these surfaces
must be removed before installing the wheel.

ZA WARNING
— Read and follow the important information
and notes under > page 234.
— Never use the hex socket in the screwdriver
handle or the hex socket wrench with the
ratchet to loosen or tighten the wheel bolts.
This increases the risk of an accident, be-
cause you will not be able to achieve the cor-
rect tightening specification.
@) Note
When removing or installing the wheel, the
rim
could hit the brake rotor and damage the
rotor. Work carefully and have a second per-
son help you.
Unidirectional tires
A unidirectional tire profile is identified by arrows
on the tire sidewall that point in the running di-
rection. You must always maintain the specified
running direction. This is necessary to ensure the
tire's optimal performance in regard to adhesion,
running noise, and friction, and to reduce the risk
of hydroplaning.

To benefit fully from the advantages of the uni-
directional tire design, you should replace faulty
tires as soon as possible and restore the correct
running direction on all of the tires.
> Reinstall the caps on the wheel bolts if necessa-
ry.
> Store the vehicle tool kit in its designated
place.
> If the removed wheel does not fit in the spare
wheel well, store it securely in the luggage
compartment > page 79.
> Check the tire pressure on the installed wheel
as soon as possible.
> Correct the tire pressure and store it in the MMI
=> page 246.
258
> The wheel bolt tightening specification must be
90 ft lbs (120 Nm). Have it checked as soon as
possible with a torque wrench. Drive carefully
until then.
> Have the faulty wheel replaced as quickly as
possible.
Space-saving spare tire
Applies to: vehicles with space-saving spare tire (compact
spare tire)
The spare tire is intended for short-term use only.
Have the damaged tire checked and replaced if
necessary by an authorized Audi dealer or author-
ized Audi Service Facility as soon as possible.
There are some restrictions on the use of the
compact spare tire. The compact spare tire has
been designed specifically for your type of vehi-
cle. Do not replace it with the spare tire from an-
other type of vehicle.
The compact spare tire is located in the luggage
compartment under the cargo floor cover
=> page 253.
The tire pressure must be adjusted to a specified
value listed on the tire pressure sticker
=> page 237, fig. 171.
Snow chains
For technical reasons, the use of snow chains on
the compact spare tire is not permitted.
If you have to drive with snow chains and a front
tire fails, mount the spare tire in place of a rear
tire. Install the snow chains on the rear tire that
you removed, and install that in place of the
front tire that failed.

ZA WARNING
— After installing a spare tire, the tire pressure
must be checked as soon as possible.
— Do not drive faster than 50 mph (80 km/h)
with a compact spare tire. Driving faster
than that increases the risk of an accident.
— To reduce the risk of an accident, avoid hard
acceleration or braking and driving fast
around curves with the compact spare tire.
— To reduce the risk of an accident, never drive
with more than one compact spare tire. >

8W1012721BB

Speed limit information
refer to Traffic sign recognition......... 118
Speed limits
refer to Traffic sign recognition......... 118
Speedometer......... cece eee ee eee 1d,
Speed warning system..............0005 118
Sport differential..............00220008 108
Start/Stop system. .......-...0-.00 ee eee 99
Switching offandon..............000- 100
Starting to drive... ... eee eee eee 93.
Starting (EMGIME)'. . scssese a» wecnse sw apecmae 9 & exe 100
SECOTING . cassene x susows @ eneass a @ stetaie w & ne 107
Audi drive select. ............0 eee e eee 106
also refer to Steering...............55 107
Steering lock: « s saeg ss eae sv pees se eeR ees 92
Steering wheel
AGJUStING!a: « 9 seovos x 3 waxsu a ¢ Hawes 3 2 Bem 4 62
Adjusting manually..................0- 62
Shift
paddles.......... 00... cece sees 96
Steering wheel heating................. 90
also refer to Multifunction steering wheel. . 12
Steps for determining correct load limit... 241
Stopover (navigation) .................. 180
Stopping (ENGIN) ax « = was = 2 eevee 3 « swe s & 100
StOrage areas: = case « = ems sy ewe FE RE Be 78
Stored stations
refer to Presets. « 2 oxo oe aww oo coe vo 190
Sunshade
ReardOorst. « avers s 1 ana w a aumvens 0 0 amine © 6 54
ROOF... eee ee 44
SUN VISOFS 2... eee ee eee 54
SUSPEASION) csr 6 6 ccesere & 6 esennire & presen a 6 stenonts 106
Audi drive select.......... 0.0 eee eee 106
Swapping calls.............-.00022000e 164
Swerve assist... 2.0... e eee eee eee 142
Symbols
Navigation... 0.0.0... 0... e cece ee eee 180
UratfiGws = s wows ss wewe : eens t see cs ee 185
also refer to Indicator lights.............. 7
SYNG (Button) « 0 seen oo snen on onan wo cmon x 89
SYSECMTSELLINGS senses oo cases oo sees o wee» 206
T
Tachometer es s ¢ oases se mewn 2 x qawe 2 nae 11,13
Tail lights
Cleaning « x ccsiese i a scene x = suenens 4 x semcwre wo ome 248
Techriicalidatais © « swivis w sswersse « wees 2 e coe 277
Technical modifications................. 272
Telephone’: « ¢ saws = + sews os eee oe ews ee 158
Accepting/ending acall................ 164
Audi phone box........ 0... e ee eee eee 160
Charging the battery (USB)............. 160
Charging the battery (wireless)......... 160
Connecting a mobile phone............ 158
Diglinig ANUMBEr: « caus « gaan ss pews ae ee 164
Exterior'antennass «+ sccscs ae anne a i atiome a a 160
Mobile device reminder signal.......... 161
Options during aphonecall............ 164
Playing Musi¢ sven «0 ven oe ence omen ve 195
Temperature display (outside temperature) .. 14
Temperature gauge
COOLAME cassie» 5 cxcowms 5 0 esemns 4 0 omnis a 8 ee & 11
TeXtINPUt sss 3 6 cw oo wee oo een oo oe 21
Text messages
SettingS 0.0... 0. cece eee eee eee eee 166
Text messaging settings............... 166
also refer to Text messages............ 166
TiesdOWiS's = saves 5 « ees 3 2 cess ce eae «Fae 84
Tightening specification
Wheel Doltstin so icnasi s 2 aasn <0 mason © svann 258
Tightening specification (wheel bolts) .... . 258
Ti@s: = worms < 5 eeu 2 ¢ ews ge eee Fo ee zs 15
tiptronic
refer to Manual shifting................ 96
Tire Mobility System (tire repair set)....... 253
Tin@S « wee ¢ & wea & Goes x eR ge ROR a 2 227
GRANGIAG' ie = soci 2 eranenss e mweeee a meee 2 255
Low-profile tires. .............00 0-0 ee 243
Repainisets ; swe : seen os een ¢ 5 em vb 253
Senvice liferces < viva + wean @ + sae wo eave 236
Tire pressure... 2... eee eee eee 237
Tire pressure monitoring system.... 244,245
Tire pressure table..................-. 239
Tire pressure (trailer mode)............ 112
Treadwear indicators.................. 236
Uinidireetioniale: « = exces 22 ween 2 ¢ eeem 229, 258
Uniform tire quality grading............ 243
Tires and wheels
Glossary of tire and loading terminology .. 230
Tires and vehicle load limits............ 240
TOO Sissi: ¢ 2 czas ¢ aes 2 Gee EX Ream FE eee 253
Top tether anchor (securing the child safety
S@at)'s « v saws y # ows ¥ 0 eww ey coo Se ED a YY 76
289