wheel bolt torque AUDI Q5 2014 Owners Manual

264 Tire s and wheel s
driving a few yards and correct if neces­
sary. Follow the instructions from the
snow cha in manufacturer when doing so.
(D Tips
Where snow chains are mandatory oncer ­
tain roads, this normally also applies to
veh icles with all-wheel dr ive .
Wheel bolts
Wheel bolts must always be tightened to the
correct torque.
The design of whee l bolts is matched to the
factory insta lled rims . If different rims are fit ­
ted, the correct wheel bolts with the right l ength and correctly shaped bolt heads must
be used. This ensures that wheels are f itted
securely and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bolts from a different vehicle -even if it
is the same model
¢ page 295.
.&_ WARNING
Improperly tig htened or maintained wheel
bolts can become loose ca using loss of
cont ro l, a co llision and serious p ersona l in­
Jury.
- Always keep the wheel bolts and the
threads in t he wheel hubs clea n so the
wheel bolts can tu rn easily and be prop­
erly tigh tened.
- N ever grease or oil the wheel bo lts and
the threads in the wheel h ubs. They can
become loose w hile d riving if greased or
oiled, even if tightened to the specified
torq ue.
- Only use wheel bolts that be long to the
rim being installed.
- N ever use different whee ls bolts on your
vehicle.
- Always mai nta in the co rrec t tighte ning
tor que fo r the wheel bo lts to reduce the
risk of a wheel loss . If the tightening tor­
que of the wheel bo lts is too low, they
can loosen and come out when the veh i- cle is moving.
If the tightening torque is
too high, the wheel bolts and threads
can be damaged and the wheel can be­
come loose.
(D Note
The specified torque for the whee l bolts is
105 ft lb (140 Nm) with a to lerance of
± 7,4 ft lb(± 10 Nm). Torque wheel bolts
diagonally . After changing a wheel, the
torque must be checked as soon as poss i­
ble with a to rque wrench -preferab ly by an
a uthorized Aud i dea le r or qualified wor k­
shop.
Low aspect ratio tires
Your A udi is factory -eq uipped w it h low aspect
ratio tires. These tires have been thoroughly
tested and been se lected specifically for your
model for their superb performance, road fee l
and handling under a variety of driving condi­
t ions . Ask your authorized Audi dealer for
more details .
The low aspect ratio of these tires is ind icated
by a numeral of
55 or less in the tire's s ize
designation . The numeral represents the ratio
of the tire's sidewall height in relation to its
t read width exp ressed in percentage. Conven­
tiona l tires have a he ight/w idth rat io of 60 or
more.
Th e performanc e of low-a spect-ratio tire s is
pa rticularly sensi tive to improp er inflation
pre ssure. It i s ther efor e important that low
a spe ct ratio tir es are inflated to the spe cified
pre ssure and that the inflation pre ssure i s
regula rly checked and mainta ined. Tire pre s­
sure s should be checked at lea st once a
month and al way s befo re a long trip
¢ page 2 53, Checking tire pressure.
What you can do to a void tire and rim
damage
Low aspect ratio tires can be damaged more
easily by impact w ith potholes, curbs, gul lies
or ridges on the road, particularly if the tire is
underinflated . ..,.

~ Use the hexagonal socket in the screwdriver
handle to screw in and tighten all wheel
bo lts
slightly .
~ Remove the alig nment pin and insert and
t igh ten the remaining wheel bolt s light ly
Like t he rest.
~ Turn th e jack handle* counter-clockwise to
l ower the vehicle unti l the jack* is fully re­
leased .
~ Use the whee l bolt w rench to t ighten a ll
whee l bolts firmly <=>
page 2 75. Tighten
them
crosswise, from one bolt to the (ap ­
proximate ly) opposite one, to keep the
whee l centered.
Q;) Note
When removing or installing the wheel,
the rim could hit the brake rotor and dam­
age the rotor. Work carefully and have a
second person help you.
(D} Tips
Never use the hexagonal socket in the han­
dle of the screwdriver to loosen or tighten
the wheel bolts .
- Pull the reversib le b lade from the screw­
driver before yo u use the hexagonal
socket in the handle to t urn the whee l
bo lts .
- When mounting tires with
unid irectional
tread design
make sure the tread pat­
te rn is poi nted the right way
<=> page 2 77.
- The wheel bolts should be clea n and easy
to tu rn . Check for d irt and corrosion on
the mat ing s urfaces of both the wheel
and the hub. Remove a ll dirt from these
su rfaces before remo unting the wheel.
What do I do now? 277
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in the right direction .
Using a spa re tire with a tread pattern
intended for use in a specific direction
When using a spare t ire wi th a tread pat ter n
intended for use in a spec ific d irect ion, please
note the fo llowing :
- The d irect io n of rotation is marked by an ar­
row on t he side of the ti re .
- If the spare tire has to be insta lled in the in­
correct d irect ion, use the spare tire only
temporarily s ince the t ire will not be able to
achieve its optimum performance cha racte r­
is tic s w it h regard to aquap la ni ng, no ise and
wear .
- We recommend that you pay part icu lar at­
t en tion to th is f act d uring we t wea ther and
t ha t you adjus t you r speed to m atch r oad
conditions .
- Repla ce the fl at t ire wi th a new o ne and
have i t installed on your vehicle as soo n as
possible to resto re the han dling advantages
of a u nidirectional tire .
Notes on wheel changing
Please read the information¢ page 258, New
tires and replacing tires and wheels
if yo u a re
go ing to use a spare tire w hich is different
from the tires on yo ur vehicle .
After you change a tire:
- Check the tire pre ssure on the spare imme­
diately after installation.
- Have the wheel bolt tightening torque
checked with a torque wrench as soon a s
possible by your authorized Audi dealer or
a qualified workshop.
- With steel and alloy wheel rims , the wheel
bolts are cor re ctly tightened at a torque of
105 ft lb (140 Nm).
- If you notice that the wheel bolts are cor­
roded and diff icult to turn while changing
a tire, they should be replaced before you
check the t ightening torque. .,,.
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