wheel size AUDI A4 2016 User Guide

different tire speeds. For this rea­son, in case of emergency, only
use a spare tire* that is the same
circumference as the regular
tires.
&_ WARNING -
-Only use tire/rim combina­ tions and suitable wheel bolts
that have been approved by
Audi. Otherwise, damage to
the vehicle and an accident could result.
-For technical reasons, it is not possible to use tires from oth­
er vehicles - in some cases,
you cannot even use tires from
the same vehicle model.
-Make sure that the tires you
select have enough clearance
to the vehicle . Replacement
tires should not be chosen
simply based on the nominal
size, because tires with a dif­
ferent construction can differ
greatly even if they are the
same size. If there is not
enough clearance, the tires or
the vehicle can be damaged and this can reduce driving
safety and increase the risk of
an accident.
Wheels
-Only use tires that are more
than 6 years old when abso­ lutely necessary and drive
carefully when doing so.
-If you install wheel covers on
the vehicle, make sure they al­
low enough air circulation to
cool the brake system. If they
do not, this could increase the
risk of an accident.
Tire wear/damage
Fig. 189 Tire profile : treadwear indica­
tor
Tire wear
Check the tires regularly for wear .
-Inflation pressure that is too low
or high can increase tire wear
considerably.
-Driving quickly through curves, rapid acceleration and heavy
braking increase tire wear .
-Have an authorized Audi dealer
or authorized Audi Service Facili­
ty check the wheel alignment if
there is unusual wear. ..
225

Wheels
the risk of an accident. Read and follow the important safe­
ty precautions in ¢ page 229,
Tires and vehicle load limits.
-The tire must flex more if the
tire pressure is too low or if
the vehicle speed or load are
too high. This heats the tire up
too much. This increases the
risk of an accident because it
can cause the tire to burst and
result in loss of vehicle con­
trol.
-Incorrect tire pressure in­
creases tire wear and has a
negative effect on driving and
Tire pressure table
Please note that the informat ion
contained in the following table
was correct at the time of print­
ing, and the information is sub­
ject to change. If there are differ­
ences between this information
and the tire pressures specified
on the label on the driver's side 8- pillar, always follow the specifica­
tion on the 8-pillar label
¢ page 227, fig.190.
228
braking behavior, which in­
creases the risk of an accident.
(D Note
Replace lost valve caps to re­
duce the risk of damage to the
tire valves.
@ For the sake of the environment
Tire pressure that is too low in­
creases fuel consumption.
(D Tips
Audi recommends using the
tire pressure specified for a normal load
¢ page 228 or for
a full load when the vehicle is
partially loaded .
Make sure that the tire designa­
tion on your tire matches the des­ ignation on the tire pressure label
and the tire pressure table.
The following table lists recom­
mended tire pressures in cold
tires according to the load and the size of the tires installed.

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You can also use all season tires instead of
winter t ires . Please note that in some coun­
tries where w inter t ires are required, only
w inter t ires with the
& symbol may be per­
m itted.
Snow chains
Snow chains improve trac tion in the snow.
"' Only install snow chains on the front wheels.
This applies also to ve hicles w ith all wheel
drive* .
"' Check and correct the seating of the snow
chains if necessary after driving a few feet . Fol ­
low the instructions from the manufacturer.
"' Note the max imum permitted speed when d riv­
ing with snow chains . Do not ex ceed 30 mp h
(50 km/h).
Snow chains not only imp rove the
driving in win­
ter road cond itions, but also the
braking .
Use of snow chains is only perm itted with certain
r im/t ire combinations due to tec hnical reasons .
Check w ith an authorized Aud i dealer o r autho r­
iz ed A udi Service Fac ility to see if yo u may use
snow cha ins.
Use
fine-mesh snow chains . They must not add
mo re than 0.53 inch (13 .5 mm) in height , includ­
in g the chain lock.
You must remove the chains when driving on roads that are
free of snow. When roads are free
of snow, snow chains can impair handling and
damage the t ires, and t he cha ins w ill quickly be
destroyed.
_& WARNING
Us ing in co rrect snow chains o r inst alling snow
chains incorrectly can result in loss o f vehicle
cont rol, which inc reases t he risk of an acci­
dent.
([) Note
Snow chains can damage the rims/whee l cov­
ers * if the chains come into direct con ta ct
Wh eel s
with them. Remove the whee l covers* fi rst .
Use coated snow chains .
(D Tips
When driv ing wi th snow chains, it may he lp to
switch on sport/offroad mode<=>
page 178.
Low aspect ratio tires
Your Audi is factory -equ ipped with low aspect ra­
tio t ires . These tires have been thorough ly tested
and been selected spec ifically for your model for
their superb performance, road fee l and handling
under a var iety of dr iv ing condit ions . Ask your au­
thorized Aud i dea le r fo r more detai ls .
The low aspect rat io of these tires is indica ted by
a numeral of
55 or less in the t ire 's size des igna­
tion . The numeral represents the ratio of the
t ir e's s idewa ll height in relation to its t read width
exp ressed in perce ntage. Conve ntiona l tires have
a height/wid th ra tio of 60 or more.
The performance of low-asp ect-ratio tir es is par­
ticularly sen sitive to improper inflation pres ­
sure. It is therefore important that low aspect ratio tire s are inflated to the specified pressure
and that the inflation pressure i s regularly
checked and maintained. Tire pressures should
be checked at lea st once a month and alway s
before a long trip
¢ page 22 7 .
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be damaged more easi ­
l y by impact with potho les, curbs, gullies or
ridges on the road, particularly if the tire is un ­
der i nflated.
In order to minimize the occurrence of impact
damag e to the tires of yo ur v ehicle, we recom­
mend that you observe the following preca u­
tions:
- Always maintain recommended inflation pres­
sures . Check yo ur tire pressure every 2,000
m iles (3,000 km) and add air if necessary.
- Dr iv e carefully on roads w ith potholes, deep
gullies or ridges. The impact from dr iving
through or over such obstacles can damage
233

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The temperature grade for this tire is estab­lished for a tire that is properly inflated and
not overloaded. Excess ive speed, underinfla­
tion, or excessive loading, either separately or
in combination, can cause heat buildup and
possible tire failure.
& WARNING
-
-
Temperature grades apply to tires that are properly inflated and not over or underinflat­
ed.
Tire pressure monitoring system
U) General notes
App lies to vehicles: with tire pressure mo nitoring system
Each tire, including the spare (if provided),
should be checked monthly when cold and inflat­
ed to the inflation pressure recommended by the
ve hicle manufact urer on the vehicle placa rd o r
tire inflat ion press ure label.
(If your vehicle has
tires of a different size than the size indicated on
the vehicle placard or tire inflation pressure la­
be l, you should determine the proper tire infla­
tion pressure for those tires).
As an added safety feature, your vehicle has been
eq uipped with a tire pressu re monitoring system
(TPMS) that illuminates a low tire pressure te ll­
tale when one or more of your t ires is significant­
ly under- inflated. Accordingly, when the low tire
pressure tellta le illuminates, you should stop and
check your tires as soon as possible, and inflate
them to the proper press ure. Driving on a s ignifi­
cantly under-inflated tire causes the tire to ove r­
h eat and can lead to t ire failure. Unde r-inflation
a lso reduces fuel e fficiency and tire tread life,
and may a ffec t the vehicle's handling and stop ­
p ing ability .
P lease note that the TPMS is not a substit ute for
p roper tire main tenance, and i t is the drive r's re­
sponsib ility to ma intain correct tire pressure,
even if under-inflation has not reached the level
to trigger illumination of the TPMS low tire pres­
sure telltale .
Wh eel s
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the sys­
tem is not ope rating properly. The TPMS ma l­
funct ion indicator is combined with the low t ire
pressure telltale. When the system detects a
malfunction, the telltale will flash for app roxi­
mately one m inute and t hen rema in continuously
illuminated. This seque nce w ill cont inue upon
s u bsequent vehicle star t-ups as long as the mal­
funct ion exists.
When the malfunction indicator is illum inated,
the system may not be able to detect o r signal
l ow tire p ressure as intended. TPMS malfunct ions
may occur fo r a v arie ty of reaso ns, including the
insta llation of replacement or al ternate tires or
whee ls on the vehicle that p revent the TPMS
from functioning proper ly . Always check the
TPMS ma lfunction te lltale after replacing one or
more tires or wheels on yo ur vehicle to ensure
that the rep lacement or a lternate tires and
wheels allow the TPMS to continue to function prope rly.
' If the Tire Pressure Monitoring System
indicator appears
Applies to vehicles: wi th t ire pressure monitoring system
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too low
or if there is a system malfunction.
Fi g. 192 Instrument cluster: indicator light with message
Using the ABS sensors, the tire pressure monito r­
ing system compares the tire tread c ircumfer-
ence and v ibration characterist ics of the ind ividu-
al tires. If the press ure changes in one or mo re
t ir es, th is is indicated in the instrument clust er
display with an indicato r light
RI] and a message . .,.
235