wheel alignment AUDI A4 2017 Owners Manual

&_ 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.
-Only use tires that are more than six 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
Wheels
cool the brake system. If they
do not, this could increase the
risk of an accident.
Tire wear/damage
Fig. 254 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.
-Have the wheels rebalanced if an imbalance is causing noticeable
vibration in the steering wheel.
If you do not, the tires and other
vehicle components could wear more quickly. .,..
325

Emergency assistance
Removing and installing a wheel
Fig. 266 Wheel: internal hex socket to turn the whee l
bolts
Fig. 267 Whee l: alignment pin in the top ho le
Removing a wheel
., Remove the top wheel bolt complete ly using
the hex socket in the screwdriver hand le (in the
vehicle tool kit)
c::> fig. 266 and place it on a
clean surface .
., Install the alignment pin (from the vehicle tool
kit) by hand into the empty hole
c::> fig. 267 .
., Remove the rest of the wheel bolts.
., Remove the wheel. The alignment pin remains
in the hole while doing this.
Install a wheel
Read the directions on c:> page 348 when instal­
ling unidirectional tires.
., Slide the wheel on over the alignment pin.
., Install the wheel bolts and tighten gent ly using
the hex socket.
., Remove the alignment pin and also tighten the
remaining wheel bo lt .
., Carefully lower the vehicle using the vehicle
jack* .
., Tig hte n the wheel bolts i n a diagona l pattern
using the wheel wren ch.
348
The wheel bolts must be clean and loosen/tight ­
en easily . Check the contact surfaces for the
wheel and hub. Contam inants on these surfaces
must be removed before installing the wheel.
A WARNING
Never use the hex socket in the screwdriver
handle or the hex socket wrench w ith the
ratchet to loosen or tighten the wheel bolts.
This increases the risk of an accident, because
you will not reach the tightening specification
required.
(D Note
When removing or instal ling the wheel, the
r im could hit the brake rotor and damage t he
rotor. Work carefully and have a second per­
son help yo u.
@ Tips
- When mounting tires with unidirectional
tread design
make sure the tread pattern is
pointed the right way
c::> page 348.
- The wheel bolts should be clean and easy to
turn. Check for dirt and corrosion on the
mati ng surfaces of both the wheel and the
hub. Remove all dirt from these sur faces be­
fore remounting the whee l.
Unidirectional tires
A unidirectional tire profile is identified by arrows
that point in the running direction on the tire
s idewall. You must always adhere to the speci­
fied running direction . Th is is necessary ensure
the tire's opt imum performance in regard to ad­
hesion, running noise, friction and hyd roplaning.
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
r un ning direction on all of the tires.
Finishing
., Re install the caps on the wheel bolts if neces­
sary .
., Store the vehicle tool kit in its designated
place . ..,.

<( a, .... N ,....
N .... 0 0
3 a,
A
A/C MAX (climate control system) . . . . . . . . . 70
A/C (climate control system) . . . . . . . . . . . . . 69
Accessories . . . . . . . . . . . . . . . . . . . . . . . 64, 365
Active lane assist ................ .. ... 112
Adjusting steering time......... ... .. . 115
Adjusting the vibration warning . . . . . . . . 115
C leanin g th e came ra area . . . . . . . . . . . . . 338
Driver messages . . . . . . . . . . . . . . . . . . . . . 114
Indicator light . . . . . . . . . . . . . . . . . . . . . . 113
switching on and off . . . . . . . . . . . . . . . . . 113
Adaptive cruise control. . . . . . . . . . . . . . . . . . 96
C lean ing sensors . . . . . . . . . . . . . . . . . . . . 338
Congestion assist . . . . . . . . . . . . . . . . . . . . 104
Distance indicator . . . . . . . . . . . . . . . . . . . 105
Di stance warning . . . . . . . . . . . . . . . . . . . . 105
Me ssages . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Predictive control . . . . . . . . . . . . . . . . . . . . 102
Request for driver intervention . . . . . . . . . 102
Setting the driving program . . . . . . . . . . . 102
Stop-and-go traffic . . . . . . . . . . . . . . . . . . 100
Adaptive dampers....... ..... ... ... .. . 121
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 36
Adaptive light Indicator light . . . . . . . . . . . . . . . . . . . . . . . 36
AdBlue .. .. .. .. .................. ... . 300
M essages . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Additional accessories . . . . . . . . . . . . . . . . . 365
Additional phone . . . . . . . . . . . . . . . . . 161, 230
Adjusting air distribution (climate control sys-
tem) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Adjusting the sound . . . . . . . . . . . . . . . . . . . 233
Adjusting the temperature (climate control
system) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
advanced key
refer to Convenience key . . . . . . . . . . . . . . . 76
Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 33
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . 273
Advanced Airbag System . . . . . . . . . . . . . . 257
Advanced Airbag System components . . . 260
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Ch ildren ...... ........... ...... ... . 279
Ch ild restraints . . . . . . . . . . . . . . . . . . . . . 279
Components (front airbags) . . . . . . . . . . . 260
Index
Dang er of fitting a child safety seat on the
front passenge r seat . . . . . . . . . . . . . . . . . 254
Disposa l . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Front airbags . ... .. ............. 257,258
How do the front airb ags work? . . . . . . . . 263
How many airbags does my vehicle have? 260
How the Advanced Airbag System compo-
nents work together . . . . . . . . . . . . . . . . . 262
Important informat ion . . . . . . . . . . . . . . . 253
Important safety instructions on the knee
airbag system . . . . . . . . . . . . . . . . . . . . . . . 271
Indicator light . . . . . . . . . . . . . . . . . . . . . . 265
Kn ee airbags . . . . . . . . . . . . . . . . . . . . . . . . 269
Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . 265
PASSENGER AIR BAG light . . . . . . . . . . . . 265
Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Safety ins truc tions . . . . . . . . . . . . . . . . . . . 267
S id e airbags . . . . . . . . . . . . . . . . . . . . . . . . 271
Side curta in airbags . .............. ... 274
When must the system be inspected? 265
Air pressure Tire Pressure Monitoring System . . . . . . . 335
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Alignment pin (changing the wheel) . . . . . . 343
All season tires . . . . . . . . . . . . . . . . . . . . . . . 332
All weather lights . . . . . . . . . . . . . . . . . . . . . . SO
All wheel drive . . . . . . . . . . . . . . . . . . . . . . . 137
AMI
ref er to Aud i music interface.......... . 215
Android Auto
refer to Audi smartphone interface . . . . . 227
Anti-lock braking system . . . . . . . . . . . . . . . 134
In dicator lig ht . . . . . . . . . . . . . . . . . . . . . . . 32
Anti-s lip-regulation . . . . . . . . . . . . . . . . . . . 134
Anti-Slip-Regulation Indicato r light . . . . . . . . . . . . . . . . . . . . . . . 32
Appl e CarPlay
refer to Audi smartphone interface . . . . . 227
Arrow view . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Audi connect emergency call and service . . 184
Emer gency ca ll . . . . . . . . . . . . . . . . . . . . . . 184
Online Audi Service enqu iry . . . . . . . . . . . . 186
Online roadside assistance . . . . . . . . . . . . 185
Audi connect vehicle control . . . . . . . . . . . . 181
Parking location . . . . . . . . . . . . . . . . . . . . . 182
Remote locking/unlocking . . . . . . . . . . . . 182
Vehicle status report . . . . . . . . . . . . . . . . . 182
367