winter tires AUDI A5 COUPE 2018 Owners Manual

engaged, for example when you notice that the next traffic light is red . This produces an engine
braking effect, which helps to protect the brakes
and tires and reduces the emissions and fuel con ­
sumpt ion to zero (fuel shut-off dur ing decelera­
tion) .
Shift efficiently
Upshifting earlier is an effective way to save fuel.
Staying in a gear too long uses fuel unnecessari­
ly.
Applies to: vehicles with manual transmission
Shift as soon as possible from first to second
gear. S hifting to the next highest gear at approxi­
mately 2,000 RPMs if poss ible is recommended.
Applies to: vehicles with automatic transmissions
Press down on the acce le rator peda l slowly and
avoid "kick -down".
Avoid full acceleration
You should rarely travel at the maximum vehicle
speed. High speeds cause a disproportionately
high increase in fuel consumption, emissions and
traffic noise. Driving more slowly saves fuel.
Reduce idling time
The Start/Stop system* he lps to reduce the idling
time automatically. In vehicles without the Start/
Stop system*, it is efficient to switch the engine
off when stopped at railroad cross ings and long
r ed lights. Stopping the engine for 30-40 sec­
onds already saves more fuel than the amount of
extra fuel needed to restart the eng ine.
It takes a very long time in idle to warm the en­
g ine up to operating temperature. Wear and
emissions are especially h igh in the wa rm-up
phase . Therefore, you should begi n driving im­
mediately a fter starting the engine . Avoid high
RPMs while do ing this .
Have maintenance performed regularly
By having maintenance performed regu larly on
your veh icle, yo u ca n he lp to reduce f uel con-
<(
~ sumption before yo u even start to drive. The
N ~ maintenance condition of your vehicle not only
8 affects traffic safety and long-term value but a l­
'° 3 Driving
so impacts fuel consumption . A poorly main ­
tained engine can lead to fuel consumption that is 10% higher than norma l.
Avoid short trips
The eng ine and exhaust cleaning system must
reach their optimal operat ing temperatu re to ef­
f ectively reduce consumption and emissions.
A cold engine uses a disproportionately high
amount of fue l. The engine reaches operating
temperat ure and consumption normalizes on ly
after approximate ly 2.5 miles (4 km).
Check the tire pressure
To save fuel, make sure the tires are always in­
flated to the correct press ure
~page 351. The
fuel consumption can increase by 5% if the pres­
s u re is only 0.5 bar too low. Due to the increased
rolling resistance, low tire pressures wi ll also
l ead to greater tire wear and will affect driving
behavior.
Do not drive on winter tires year-round, as this
will consume up to 10% more fuel.
Eliminate unnecessary weight
S in ce eve ry po und of ext ra weight increases f uel
consumption, a quick inspection of the luggage
compartment may be worth it to avoid unneces ­
sary weight .
When not be ing used, a roof rack should be re­
moved to decrease the wind resistance of the ve­
hicle. This will save you approximately 12% fuel
at speeds from 62 -75 mph (100 - 120 km/h) .
Save energy
The eng ine drives the generator, which generates
electric ity; the fuel consumpt io n also incr eases
with the demand for electr icity. The refore, switch
electrical eq uipment off when you no longer
need it . Examples of equipment that uses a lo t of
energy are air blowers at a high setting, the rear
window defogger and seat heating* .
@ Note
Do not leave engine idling unattended after
starting. If warning lights shou ld come on to
indicate improper operation, they would go
87

Assistance systems Electronic speed limiter
Your vehicle may be factory equipped with t ires
that are rated for a maximum speed of 130 mph (210 km/h). This is less than the maximum speed
of your vehicle. To reduce the risk of sudden tire
failure and loss of control if the vehicle is operat­
ed at excessive speeds, your vehicle also has an
electronic speed limiter . The electronic speed
limiter prevents your vehicle from going faster
than the t ire speed rating. For mo re information
~page 341.
If the engine control unit receives faulty vehicle
road speed s ignals, the Malfunction Indicator
L amp
(MIL) ¢..ij will illuminate. If this occurs,
contact the nearest autho rized Audi dealer for
assistance.
_& WARNING
Always observe the posted speed limits and
adjust your speed to suit prevailing road, traf­
fic and weather conditions. Never drive your
vehicle faster than the max imum speed rating
of the tires installed.
Speed warning system
Introduction
Applies to: vehicles with speed warning system
The speed warning system helps you to stay be­
low a specified maximum speed that can be set,
changed or deleted in the Infotainment system.
-
The speed warning system warns you if you are
exceeding the maximum speed that you have set .
A wa rning tone will sound as soo n as yo ur speed
exceeds the s tored value sligh tly. The
[01 (USA
models)/
[01 (Canada models) indicator light
and a message appear in the instrument cluster
display at the same time. The
HI] / [0] indicator
light and the message turn off if the speed falls
back below the stored maximum speed.
Setting a threshold is recommended if you would l ike to be reminded when yo u reach a certain
maximum speed. Situations where you may want
to do so include driving in a country with a gen er-
Ass is ta nce syst ems
al speed limit or if there is a specified maximum
speed for winter tires.
Setting the warning threshold
Se lect in the Infotainment system: !MENU I b ut­
ton
> Vehi cle > left contro l button > Driver a ss is ­
tance > S peed w arning > Manual.
(j) Tips
Regardless of t he speed warning system, you
shou ld always mon itor your speed using the
speedometer and make s ure yo u are fo llow ing
the lega l speed limit .
Cruise control system
Switching on
Applies to: vehicles with cruise control system
The cruise control system makes it possible to
drive at a constant speed starting at
15 mph
(20 km/h) .
0
f
~
0
Fig . 1 07 Operat ing lever: cruise control system
~
"' 0 > u. m
.. To switch the system on, pull the lever into po-
sition
(D ~ fig. 107 .
.. Dr ive at the speed to be maintained.
.. To store the speed, press the button @.
T he stored speed and the
cij;jl)~14 (USA models) /
Bl (Canada models) indicator light appear in the
instrument cluster display . An additional ind ica­
tor appears in the head-up display *.
T he speed is maintained by modifying engine
power or through an active brake intervention.
A WARNING
-~
- Always pay attention to the traffic around
you when the cruise control system is in
107

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3 a,
snow and ice. Always read and follow safety
precautions¢.&. .
Winter tires
By using all wheel drive, your vehicle has good
forward motion with standard tires in winter con­
ditions. However, using winter or all season tires
on
all four wheels in the winter is recommended,
because this will improve the
braking effect.
Snow chains
If there are snow chain laws, snow chains must
also be used on vehicles with all wheel drive
¢ page 358, Snow chains.
Replacing tires
For vehicles with all wheel drive, only wheels with
the same rolling circumference should be used.
Avoid using tires with different tread depths
¢ page 348, New tires or wheels.
Offroad vehicle?
Your Audi is not an offroad vehicle -there is not
enough ground clearance. For this reason, avoid
difficult terrain .
A WARNING
-Also, in vehicles with all wheel drive, adapt
your driving style to the current road and
traffic conditions. Do not let the increased
safety provided tempt you into taking risks,
because this increases the risk of an acci­
dent .
- The braking ability of your vehicle is limited
to the traction of the wheels. In this way, it
is not different from a two wheel drive vehi­
cle. Do not be tempted to accelerate to a
high speed when the road is slippery, be­
cause this increases the risk of an accident .
- Note that on wet streets, the front wheels
can "hydroplane" if driving at speeds that
are too high. Unlike front wheel drive
vehicles, the engine does not rev higher sud­
denly when the vehicle begins hydroplaning.
For this reason, adapt your speed to the
road conditions to reduce the risk of an acci­
dent.
Intelligent Technology
Energy management
The starting ability is optimized
T he energy management system manages the
electrical energy distribution and optimizes the
availability of electrical energy for starting the
engtne.
When a vehicle with a conventional energy sys­
tem is not driven for a long time, the vehicle bat­
tery is drained by equipment (for example, the
immobilizer). In certain circumstances , there
could may not be enough energy to start the en­
gine.
Your vehicle is equipped with an intelligent ener­
gy management system for distributing electrici­
ty. This significantly improves the starting ability
and increases the vehicle battery life.
The energy management system Is made up of
battery diagnosis, idling current management,
and dynamic energy management.
Battery diagnosis
The battery diagnosis determines the vehicle bat­
tery charge level. The sensors determine the bat­
tery voltage, the battery current, and the battery
temperature. The current charge level and the
performance of the vehicle battery are deter­
mined based on this.
Idling current management
The idling current management decreases the
energy used while parked. With the engine
switched off, it manages the energy distribution
to the different electrical components . Data from
the battery diagnosis is taken into account for
this.
Depending on the vehicle battery charge level,
electrical equipment is switched off one item af­
ter the other to prevent the vehicle battery from draining and to maintain the starting ability.
Dynamic energy management
While driving, dynamic energy management dis­
tributes the appropriate amount of energy to the
electrical equipment.
It controls the battery
charge level so that the amount of energy is not
..,.
155

Wheels
Wheels and Tires
General information
.,.Check your tires regularly for
damage (punctures, cuts, cracks
and bulges). Remove foreign ob­
jects from the tire tread.
.,. If driving over curbs or similar
obstacles, drive slowly and ap­
proach the curb at an angle.
.,.Have faulty tires or rims re­
placed immediately.
"'Protect your tires from oil,
grease and fuel.
.,.Mark tires before removing
them so that the same running
direction can be maintained if
they are reinstalled.
"'Lay tires flat when storing and
store them in a cool, dry location
with as little exposure to light as
possible.
(D Note
-Please note that summer and
winter tires are designed for
the conditions that are typical in those seasons. Audi recom­
mends using winter tires dur­
ing the winter months. Low
temperatures significantly de­ crease the elasticity of summ­
er tires, which affects traction
Wheels
and braking ability. If summer
tires are used in very cold
temperatures, cracks can form
on the tread bars, resulting in
permanent tire damage that
can cause loud driving noise
and unbalanced tires.
-Burnished, polished or
chromed rims must not be
used in winter driving condi­
tions. The surface of the rims
does not have sufficient corro­
sion protection for this and
could be permanently dam­ aged by road salt or similar
substances.
Tire designations
Fig. 282 T ir e designations on the side -
wall Ill>
341

Wheels
(D Tires for passenger vehicles
(if applicable)
"P" indicates a tire for a passenger
vehicle. "T" indicates a tire desig­
nated for temporary use.
@ Nominal width
Nominal width of the tire be­
tween the sidewalls in millime­
ters. In general: the larger the
number, the wider the tire.
@ Aspect ratio
Height/width ratio expressed as a
percentage.
@ Tire construction
R indicates a radial tire.
® Rim diameter
Size of the rim diameter in inches.
@ Load index and speed rating
The load index indicates the tire's
load-carrying capacity.
The speed rating indicates the maximum permitted speed
¢ & in
Winter tires on page 357 .
"EXTRA LOAD", "xl" or "RF" indi­
cates that the tire is reinforced or
is an Extra Load tire.
Speed rat- Maximum permitted speed
ing
p
u p to 93 mph (150 km/h)
Q up to 99 mp h (1 60 km/h )
342
Speed rat- Maximum permitted speed
Ing
R
up t o 106 mph (1 70 km /h)
s up to 110 mph (180 km/h)
T up to 1 18 m ph (190 km /h)
u up to 124 mph (200 km/h)
H up to 130 m ph (2 10 km /h)
V up to 149 mph (240 km/h) al
z a bove 14 9 mph ( 240 km /h) al
w up to 168 mph (270 km/h) al
y up to 186 mph (300 km /h)a l
a) For tires above 149 mph (240 km/h ),
tire manufacturers sometimes use the
code
"ZR ".
(j) US DOT number (TIN) and
manufacture date
The manufacture date is listed on
the tire sidewall (it may only ap­
pear on the inner side of the tire):
DOT ... 2216 ...
means, for example, that the tire
was produced in the 22nd week of
the year 2016.
@ Audi Original Tires
Audi Original equipment tires
with the designation "AO" have
been specially matched to your
Audi. When used correctly, these
tires meet the highest standards
for safety and handling. An au­
thorized Audi dealer or author­
ized Audi Service Facility will be
able to provide you with more in­
formation.

® Mud and snow capability
"M/5" or "M+S" indicates the tire
is suitable for driving on mud and
snow. £ indicates a winter tire.
@Composition of the tire cord
and materials
The number of plies indicates the
number of rubberized fabric lay­
ers in the tire . In general: the
more layers, the more weight a
tire can carry. Tire manufacturers must also specify the materials
used in the ti re . These inc lude
stee l, nylon, polyester and other
materials.
@ Maximum permitted load
This number indicates the maxi­
mum load in kilograms and
pounds that the tire can carry.
@ Un iform tire quality grade
standards for treadwear,
traction and temperature resistance
Treadwear, traction and tempera ­
ture
ranges¢ page 359.
@ Running direction
T he arrows indicate the running
direction of unidirectional tires.
You must always follow the speci­
fied running direction
¢page 374.
~ Maximum permitted
inflation pressure
Wheels
T his number indicates the maxi­
mum pressure to which a tire can
be inflated under normal operat ­
ing condit ions .
Glossary of tire and loading
terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto­ matic t ransmission, power steer ­
ing, power brakes, power win­
dows , powe r seats, radio, and
heater, to the extent tha t these
items are avai lab le as factory- in­
stalled equipment (whether in­
s t alled or not).
Aspect ratio
means the ratio of the height to
the w idth of the tire in percent.
Numbers of 55 or lower indicate a
low sidewall for improved steer­
ing response and better overall
handling on dry pavement .
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinfo rced by ply cords and that is
shaped to fit the rim.
...
3 4 3

Wheels
Rim
means a metal support for a tire
or a tire and tube assembly upon
which the t ire beads are seated .
Rim diameter
means nominal diameter of the
bead seat . If you change your
wh eel size, you will have to p ur­
chase new tires to match the new
rim d iameter .
Rim size designation
means rim diameter and w idth.
Rim width
means nomina l distance between
r im flanges .
Sidewall
means that portion of a t ire be­
twee n the tread and bead .
Speed rating (letter code)
means the speed at which a t ire is
designed to be driven for extend­
ed periods of ti me. The ratings
range from 93 mph (150 km/h)
to 186 mph (298 km/h)
¢ table
on page 342 .
You may not find
this information on all tires be­
cause it is not required by law.
The speed rating letter code,
wh ere applicable, is molded on
the tire sidewall and ind icates the
3 46
maximum permissible road
speeds
¢ A in Winter tires on
page 357 .
Tire pressure monitoring
system
means a system that detects
when one or mo re of a vehicle 's
tires a re underinflated and illumi ­
nates a low tire pressure war ning
telltale .
Tread
means that portion of a tire tha t
comes into contact wi th the road.
Tread separation
means pulling away of the tread
from the tire carcass .
Treadwear indicators (TWI)
means the projections wi thin the
pr inc ipal grooves designed to g ive
a visua l indication of the degrees
of wear of the t read . See
¢ page 350, Treadwear indicator
for mo re information on meas ur­
ing tire wear.
Uniform Tire Quality Grading
is a tire informa tion system devel ­
oped by the Unite d States Nation ­
a l Highway Traffic Safety Admin­
is tration (NHTSA) that is designed
to help buyers make re lat ive
..

Wheels
for the number of seating posi­tions. Refer to the table ¢
table
on page 353
for the number of
people that correspond to the ve­
hicle normal load.
New tires or wheels
Audi recommends having all work
on tires or wheels performed by
an authorized Audi dealer or au­
thorized Audi Service Facility.
These facilities have the proper
knowledge and are equipped with
the required tools and replace­ ment parts.
.. New tires do not yet have the
optimum gripping properties.
Drive carefully and at moderate
speeds for the first 350 miles
(500 km) with new tires.
.. use tires of the same construc­
tion, size (rolling circumference)
and as close to the same tread pattern as possible on all four
wheels.
11>D0 not replace tires individually.
At least replace both tires on the
same axle at the same time.
11>Audi recommends that you use
Audi Original Tires. If you would like to use different tires, please
note that the tires may perform
348
differently even if they are the
same size ¢
&.-
.,. If you would like to equip your
vehicle with a tire/rim combina­
tion that is different from what
was installed at the factory, con­
sult with an authorized Audi
dealer or authorized Audi Service Facility before making a pur­
chase¢ &,.
If the spare tire is different from
the regular tires installed on the
vehicle - for example, if winter
tires or wide tires are installed -
then only use the spare tire tem­ porarily in case of emergency and
drive carefully while it is in use. It
should be replaced with a regular
tire as soon as possible .
On
all wheel drive vehicles , all
four wheels must be equipped
with tires that are the same brand
and have the same construction
and tread pattern so that the
drive system is not damaged by
different tire speeds . For this rea­
son, in case of emergency, only
use a spare tire that has the same
circumference as the regular
tires .
""

<( a, .... N ,....
N .... 0 \0
3 a,
(1400-750 (5 X 150) = 650
lbs.)
5 . De termin e the combined
w eig ht of lugg age and carg o
b eing load ed on the vehicle .
Th at w eight ma y not safel y ex­
c e e d th e ava ilabl e c argo and
lu ggag e load ca pacit y ca lculat­
ed in Step 4 .
6 . I f you r veh ic le will b e tow ing a
tr aile r, load from your tr ailer
will be tran sferred to y our ve­
hi cle . Con sult thi s manual to
de te rmin e how this redu ces
th e av ailabl e car go and lug­
ga ge load capa cit y o f your vehi­
cle.
..,. Chec k the tire s idewall
(¢ page 34 1, fig . 282) to de ter­
min e the de sign ated load r ating
for a speci fic tire.
Wheel bolts and rims
Wheel bolts
Wheel bolts must be clean and loosen/t ighten
eas ily.
Rims
Rims with a bolted rim ring " or with bolted wheel
covers* consist of m ultip le pieces . These compo­
n ents were bolted together using specia l bolts
a nd a special procedure . You must not repair or
d isassemble
t h em ¢.&. .
_& WARNING
Wheel bolts tha t are t igh tened or re paired in­
c orrectly can be come loose and result in loss
Wh eel s
of vehicle contro l, wh ich increases the risk of
an accident. For the cor rect tighten ing spec ifi­
cation, see
c:> page 374, Finishing.
- Always keep the wheel bolts and the
threads in the wheel h ub clean and free of
grease.
- Only use wheel bolts that fit the rim.
- Always have damaged rims repaired by an
author ized Audi dealer or author ized Audi
Serv ice Facility. Never repair o r disassemb le
rims yourself, because th is increases the r isk
of an acc ident .
Winter tires
Winter tires significantly imp rove the vehicle 's
handling when dr iv ing in winter conditions . Be­
ca use of their const ruct ion (w idth , compou nd,
t read pattern), s ummer tires prov ide less t rac­
t ion on i ce and snow.
.,. Use winter tires on all four wheels .
.,. Only use winter tires that are app roved for yo ur
ve hicle.
.,. Please no te that the max imum permi tted
speed may be lowe r with winter tires
c:> .&_ . An
authoriz ed Audi dealer or authorized A udi Serv­
ice Facility can inform yo u about the maximum
permitted speed for your tires .
.,. Check the tire pressure after insta lling wheels
c=> page351 .
The effectiveness of winter tires is reduced great­
ly when the tread is worn down to a depth of
0.16 in (4 mm). The characteristics of w inter
tires also decrease greatly as the tire ages, re ­
gardless of the rema ining t read .
_& WARNING
-
- Never d rive fa ster than the max imum pe r­
mitted spee d for your tires. This could c ause
the t ires to he at up too mu ch. This inc reases
the risk of an accident because it can cause
the tire to burst.
- Always adapt your driving to the road and
traffic conditions. Drive carefully and reduce
your spee d on icy or slippery roads . Even
winter t ires can lose t ract ion on black ice.
..,..
357

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3 a,
A WARNING ,~
- If the tire pressure indicator appears in the
display, reduce your speed immediately and
avoid any hard steering or braking maneu­
vers. Stop as soon as possible and check the
tires and their pressure.
- The driver is responsible for maintaining the
correct tire pressure. You must check the
tire pressure regularly.
- Under certain conditions (such as a sporty
driving style, winter conditions or unpaved
roads), the tire pressure monitoring system
indicator may be delayed.
@ Tips
- The tire pressure monitoring system can al­
so stop working when there is an ESC mal­
function.
- Using snow chains may result in a system
malfunction.
- The tire pressure monitoring system in your
Audi was calibrated with "Audi Original
Tires"
¢page 348. Using these tires is rec­
ommended.
Storing tire pressures
If the tire pressure changes or a tire is replaced,
it must be confirmed in the Infotainment sys­ tem.
"'Make sure before storing that the tire pressures
of all four tires meet the specified values and
are adapted to the load ¢
page 351.
"'Switch the ignition on.
"'Select in the Infotainment system: !MENUI but­
ton
> Vehicle > Service & checks > Tire pres­
sure monitoring
> Store tire pressure > Yes,
store now .
Do not store the tire pressures if snow chains
are installed.
Wheels
361