Driving
Messages in the instrument cluster display
Applies to vehicles: with Start-Stop-System
Start-stop system: deactivated. Please
restart engine manually
This message appears when specific conditions
are not met during a stop phase and the Start
Stop -System wi ll
not be able to restart the en
gine. The engine must be started with the key or
with the
! START ENGINE STOPI* button .
Start-stop system: system fault. Function
unavailable
There is a malfunction in the Start-Stop-System .
Drive the vehicle to an authorized repair facility
for servicing as soon as possible to correct the malfunction.
Transmission: Car may roll! Shift to pa rk!
This message appears if the selector lever is not
in the
P position when the driver's door is
opened. You will also hear a warning tone. Shift
the selector lever to the
P position. Otherwise,
the vehicle could roll.
Speed warning system
Overview
The speed warning system helps you to keep your
driving speed below a set speed limit.
The speed warning system warns if the driver ex
ceeds a prev ious ly stored maximum speed. A
warn ing tone w ill sound as soon as the vehicle
speed exceeds the set speed by about
3 mph
(3 km/h). At the same time, a wa rning symbo l
appears in the display. The symbol's appearance
might be different in some models.
The speed warning system has
two warning
thresholds that function independently of each
other and that have somewhat different purpos
es:
Speed warning 1
You can use speed warning 1 to set the maximum
speed while yo u are driving. This setting will re
main in effect unti l yo u turn off the ignition, as-
94
suming that you have not changed or reset the
setting .
The speed warning symbol. (USA models)/ .
(Canada models) in the warning 1 disp lay ap
pears when you exceed the maxim um speed. It
goes out when the speed falls below the stored
max imum speed .
The speed warning symbol will also go out if the
speed
exceeds the stored maximum speed by
more than about 2S mph (40 km/h) for at least
10 seconds . The stored maximum speed is delet
ed.
Setting speed warning 1
¢page 95.
Speed warning 2
Storing warning 2 is recommended if you always
want to be reminded of a ce rtain speed, for ex
amp le when you are traveling in a country that
has a genera l maximum speed limit, or if you do
not want to exceed a specified speed for winter
tires.
The speed warning 2 symbol ,. (USA mode ls)/
• (Canada models) appears in the display when
you exceed the stored speed limit. Unlike warn
ing 1, it will not go out until the vehicle speed
drops below the stored speed limit.
Setting speed wa rning 2
¢page 95.
(D Tips
Even though your vehicle is eq uipped with a
speed warning system, you should still watch
the speedometer to make sure you are not
driving faster than the speed limit.
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variab ly to the front and rear axle.
It works to
gether with selective wheel torque control, which
ac tivates when driving through curves
¢page 190.
The all-wheel drive concept is designed for high
engine power. Your ve hicle is exceptionally pow
erful and has excellent driving characterist ics
both under norma l dr iving condit ions and on
snow and ice. Always read and follow safety pre
cautions ¢.&. .
Winter tires
When driving in the w inter, your vehicle with a ll
wheel drive has an advantage, even with regular
tires. In winter road conditions it may be adv isa
b le to mount w inter t ires (or all-season tires) for
i mproved driveab ility and brak ing : these tires
must be mounted on
all four wheel s. See a lso
¢ page 249, Winter tires.
Tire chains
Where tire chains are manda tory on certain
roads, this normally also applies to vehicles w ith
a ll-wheel drive¢ page 249 , Snow chains.
Replacing wheel s/tires
Veh icles with all -whee l dr ive must always have
tires of the same s ize. A lso avo id tires with differ
ent tread depths . For detai ls see page
¢ page 241, New tires or wheels.
A WARNING
Always adjust you r driving to road and t raff ic
conditions. Do not let the extra safety affo rd
ed by all-wheel drive te mpt you into tak ing
extra risks.
- Alt hough the all-whee l dr ive is very effec
t ive, always remember th at br akin g ca pac ity
is limited by tire traction. Yo u should t here
fore not d rive at excess ive speeds on icy or
slippery road surfaces.
- On wet road surfaces, be caref ul not to drive
too fast because the front wheels co uld be
gin to slide on top of the water (a quaplan
ing). If this shou ld occu r, you w ill have no
warning from a sudden increase in eng ine
speed as with a front -whee l dr ive vehicle.
Intellig ent Technology
Always d rive at speeds which are suited to
the road conditions -risk of c rash.
Energy management
Starting ability is optimized
E nergy management controls the distribution of
electrical energy and thus optimizes the availa
bility of electrical energy for starting the engine .
If a vehicle with a conventional energy system is
not dr iven fo r a long pe riod of time, the ba ttery is
discharged by id ling curre nt cons umers (e.g. im
mobili ze r). In ce rtain circumstances i t can resu lt
i n t he re being insuffi cient energy av ailabl e to
st ar t the eng ine.
Intellige nt ene rgy manageme nt in yo ur vehicle
hand les the d ist ribution of electrical e nergy.
St art ing abil ity is m arkedly improved and the life
of the ba ttery is ex tende d.
Bas ica lly, energy management co nsists of
bat
tery diagnosis , idling current management
and
dynami c energy management .
Battery diagnosis
Battery d iagnosis continuously determ ines the
state of the battery . Sensors de termine battery
vo ltage, battery curren t and batte ry tempera
tu re . This determines t he cur rent state of c harge
and the power of t he ba ttery.
Idling current management
Idli ng cur rent management reduces energy con
s u mption wh ile the vehicle is standing . With the
ignition switched off , it contro ls the energy sup
ply to the vario us elec trical componen ts. Data
fr om b attery diagnosis is co nsidere d.
Depend ing on the ba tte ry's s ta te of charge, indi
v idual consumers are gradually turned off to pre
ven t ex cess ive disc ha rge of t he battery and thus
m ain ta in starting c ap abili ty.
Dynamic energy management
While the vehicle is being driven, dynam ic e nergy
manageme nt dis trib utes the energy generated
according to the needs of the ind ividual compo-
nents.
It regula tes consu mption, so that more ..,.
195
Wheels
Wheels
Wheels and Ti res
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 N ote
-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
23 4
and b raking 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
F ig. 20 4 Tire des ignat ions on the side-
wall II>
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(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 249.
"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
up to 93 mph (150 km/h)
Q up to 99 mph (160 km/h)
Wheels
Speed rat- Maximum permitted speed
ing
R up to 106 mph (170 km/h)
s up to 110 mph (180 km/h)
T up to 118 mph (190 km/h)
u up to 124 mph (200 km/h)
H up to 130 mph (210 km/h)
V up to 149 mph (240 km/h) al
z above 149 mph (240 km/h)al
w up to 168 mph (270 km/h)al
y up to 186 mph (300 km/h)al
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 ... 2215 ...
means, for example, that the tire
was produced in the 22nd week of
the year 2015.
@ Audi Original equipment
tires
Audi Original equipment tires
with the designation "AO" or "RO" have been specially matched to
your Audi. When used correctly,
these tires meet the highest
standards of safety and handling.
An authorized Audi dealer or au
thorized Audi Service Facility will ""
235
Wheels
be happy to provide more infor
mation.
® Mud and snow capability
"M/S" or "M+S" indicates the tire
has characteristics that make it
suitab le for driving on mud and
snow.
& indicates a winter t ire.
@ Compos ition 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 materia ls
used in the tire. These include
steel, nylon, polyester and other
materials .
@ Maximum permitted load
This number indicates the maxi
mum load in k ilograms and
pounds that the tire can carry.
@ Uniform tire quality grade
standards for treadwear,
traction and temperature
resistance
Tread wear, t raction and temper
ature ranges
¢ page 251 .
@ Running direction
The arrows indicate the running
direction of unidirec tiona l tires.
23 6
You must a lways follow the speci
fied runn ing direction
¢ page 263.
@ Maximum permitted
inflation pressure
This number indicates the maxi
mum pressure to which a tire can be inflated unde r normal operat
ing condit ions .
Glossary of tire and loading
terminology
Accessory weight
means the comb ined we ight (in
excess of those standard items
which may be replaced) o f auto
matic tra nsmission , power steer
ing , power brakes , power wi n
dows, power seats , radio , and
heater, to the extent that these
items a re available as facto ry-in
stalled equipment (whet her in
stalled or not).
Aspect ratio
means the rat io of the height to
the width o f the tire in pe rcent.
Numbe rs of 55 or lower indicate a
low sidewa ll for imp roved steer
ing response and better overa ll
handling on dry pavement .
...
"XL" "xl" "EXTRA LOAD" or "RF" ' ' '
on the sidewall.
Rim
means a metal support for a tire
or a tire and tube assembly upon
which the tire beads are seated .
Rim diameter
means nominal diameter of the
bead seat. If you change your
wheel size, you will have to pur
chase new tires to match the new
rim d iameter.
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between
r im flanges.
Sidewall
means that portion of a tire be
tween the tread and bead .
Speed rating (letter code )
means the speed at wh ich a tire is
designed to be driven for exten d
ed periods of t ime . The ratings
range from 93 mph (150 km/h)
to 186 mph (298 km/h)
¢ table
on page 235.
Yo u may not find
this information on all tires be
cause it is not required by law.
Wheels
T he speed rating letter code,
where applicable, is molded on
the tire sidewall and indicates the
maximum pe rmissible road
speeds
¢ & in Winter tires on
page 249 .
Tire pressure monitoring
system*
means a system that detects
when one or more of a vehicle's
tires are underin flated and illum i
na tes a low tire pressure wa rning
telltale.
Tread
means that port ion of a tire that
comes into contact with the road.
Tread separation
means pulling away of the tread
from the tire carcass .
Treadwear indicators (TWI)
means the projections within the
principal grooves designed to give
a visua l indication of t he degrees
of wear of the tread . See
¢ page 243, Treadwear indicator
for mo re info rma tion on measu r-
ing tire wear. .,.
239
Occupant loading and distri
but ion for vehicle normal load
for various design ated se ating
c a pa cit ies
Refer to the tire inflation pres
sure label ¢
page 244, fig. 207
for the number of seating posi
tions. Refer to the table ¢
table
on page 246
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 equ ipped with
the required tools and replace
ment parts .
.,,. New tires do not yet have the
opt imum adhesion properties.
Drive carefully and at moderate
speeds for the first 350 m iles
(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.
Wheels
.,,. Do not replace tires individually.
At least replace both tires on the same axle at the same time .
.,,. Audi recommends that you use
Audi Original equipment tires. If
you would like to use different
tires, please note that the tires may perform differently even if
they are the same size¢,&..
.,,. If you would like to equip your
vehicle w ith a tire/r im combina
tion that is different from what
was installed at the factory, con
sult w ith an authorized Audi
dealer or authorized Audi Service
Facility before making a pur
chase ¢
..1,..
The spare t ire* is diffe rent 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 d rive vehicles, all
four wheels must be equipped
with tires that are the same brand
and have the same construction
and tread pa ttern so that the
drive system is not damaged by
24 1
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disassemble them ¢.&. .
A WARNING
Wheel bolts that are tightened or repaired in
correctly can become loose and result in loss
of vehicle control, which increases the risk of
an acc ident. For the correct tightening specifi
cation, refer to ¢
page 260, After changing a
wheel .
- Always keep the wheel bolts and the
threads in the wheel hub clean and free of grease.
- Only use wheel bolts that fit the rim .
- Always have damaged r ims repa ired by an
authorized Audi dealer o r autho rized Aud i
Service Facility . Never repair or d isassemble
rims yourself, because this increases the risk
of an accident.
Winter tires
W inte r ti res s ignificantly improve the vehicle's
h andling when driving in win ter condit ions . Be
cause of the ir constr uction (width, compound,
tread pattern), summer tires provide less trac
tion on ice and snow .
"'U se winter t ires on all fo ur wheels .
.. Only use winter t ires that are approve d for your
v ehicl e.
"' Please note that the maximum permitted
speed may be lower with winter tires¢.&_ . An
authorized Aud i dealer or au thori zed Aud i Serv
ice Fac ility can inform you about the maximum
permitted speed fo r your tires .
"' Check the tire press ure after installing wheels
¢page 244.
The effectiveness of winter tires is reduced great
l y when the tread is worn down to a depth of
0 .1 57 inch (4 mm). The character ist ics of winter
tires a lso de crease great ly as the tire ages, re
ga rdless of the remain ing tread.
WARNING
- Never drive faster than the maxim um per
mitted speed for your t ires. This cou ld cause
the tires to heat up too much. Th is increases
Wh eel s
the risk of an accident because it can cause
the t ire to burst.
- Always adapt your driving to the road and
traffic cond itions . Drive carefully and reduce
your speed on icy or slippery roads . Even
winter t ires can lose tract io n on black ice.
@ For the sake of the environment
Reinsta ll summer tires at the app ropr iate
time, beca use they prov ide better handling
when roads are free of snow and ice. Summer
tires cause less road no ise, tire wear and fue l
consumpt io n.
(D Tips
You can also use all season tires instead of
winter tires. Please note that in some coun
tries where winter tires are required, on ly
winter tires w ith the
& symbo l may be per
mitted .
Snow chains
Snow chains improve traction in the snow.
"'On ly install snow chains on the rear wheels.
"' Check and correct the seating of the snow
chains if necessary after drivi ng a few feet. Fol
low the instructions from the manufacturer .
"' Note the maximum pe rmitted spe ed wh en dr iv
ing w it h snow cha ins. Do not excee d 30 mph
( SO km/h) .
S now c ha ins not o nly improve the
driving in win
te r road condit io ns, but also the
braking.
Use of snow chains is only permitted w ith certa in
r im/tire comb inat ions due to technical reasons .
Check with an author ized Audi dealer or author
ized Audi Service Facility to see if you may use
snow chains.
U se
fine-mesh snow chains . They must not add
more than 0 .53 inch (13 .5 mm) in heig ht, incl ud
ing the cha in lock.
You m ust remove the chai ns when driving on
r oads t hat are
free of snow . When roads are free
of snow, snow chai ns can impa ir han dling and .,.
249