2018 AUDI A4 heater

Child safety
restraint in place~ page 67. Install the
head restraint again immediately once the
child seat is removed. Driving without head
restraints or with head restraints that are
not properly adjusted increases the risk of
serious or fatal neck injury dramatically .
- Always read and heed all WARNINGS when ­
ever using a child restrained in a vehicle is
being used
~ page 263, Safety belts,
~ page 2 71, Airbag system and
~ page 295, Important information.
_& WARNING
If exceptional circumstances require the use
of a forward-facing child restraint on the
front passenger's seat , the child's safety and
well-being require that the following special precautions be taken:
- Make sure the forward-facing seat has been
designed and certified by its manufacturer
for use on a front seat with a passenger
front and side airbag.
- Always follow the manufacturer 's instruc­
tions provided with the child safety seat or
infant carrier.
- Always move the front passenger seat to the highest position in the up and down ad­
justment range and move it back to the
rearmost position in the seat's fore and aft
adjustment range, as far away from the air­
bag as possible, before installing the for­
ward-facing child restraint.
- Always make sure that the safety belt upper
anchorage is behind the child restraint and
not next to or in front of the child restraint
so that the safety belt will be properly posi­
tioned.
- Always make sure that nothing prevents the
front passenger's seat from being moved to
the rearmost position in its fore and aft ad­
justment range.
- Always make sure the backrest is in an up­
right position.
- Never place or use any electrical device (such as a laptop, CD player, electronic
games device, power inverter or seat heater
for child seats) on the front passenger seat
304 if the device is connected to the 12-volt
socket or the cigarette lighter socket.
- If a seat heater has been retrofitted or oth­
erwise added to the front passenger seat,
never install any child restraint system on
this seat.
- Make sure that there are no wet objects (such as a wet towel) and no water or other
liquids on the front passenger seat cushion .
- Never place objects on the seat (such as a
laptop, CD player, electronic games device,
power inverter or seat heater for child
seats) . These may influence the electrical
capacitance measured by the capacitive pas­
senger detect ion system and can also fly
around in an accident and cause serious per­
sonal injury.
- Make sure that the
PASSENGER AIR BAG
OFF
11,;; light comes on and stays on all the
time whenever the ignition is switched on.
- If the
PASSENGER AIR BAG OFF 11,;; light
does not come on and stay on, immediately
install the forward-facing child seat at a
seating position on the rear seat and have
the airbag system inspected by your author­
ized Audi dealer.
- Take the child restraint off the front passen­
ger seat and install it properly at one of the rear seat positions if the
PASSENGER AIR
BAG OFF
11,;; light does not stay on whenever
the ignition is switched on .

Wheel s
® Mud and snow capability
"M/5" or "M+S" indicates the tire
is sui table 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 t ire. In general: the
more layers, the more weight a
tire can carry . Tire manufacturers
must also specify the materials
used in the tire. These include
steel, nylon, po lyester and other
materials.
@ Maximum permitted load
This number indicates the maxi­
mum load in kilograms and
pounds that the tire can carry .
@Uniform tire quality grade
standards for treadwear,
traction and temperature resist ance
Treadwear, traction and tempera­
ture
ranges ¢ page 351.
@ Running direction
The arrows indicate the running
direction of unidirectional t ires .
You must always follow the speci­
fied running direction
¢page 366 .
336
@ Maximum permitted
inflation pressure
This 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
Acces sory we ight
means the combined weight (in
excess of those standard items
which may be replaced) of auto­ matic transmission, power steer­
ing, power brakes, power win­
dows, power seats, radio, and
heater, to the extent that these
items are available as factory-in­
stalled equipment (whether in ­
stalled or not) .
Aspect ratio
means the ratio of the height to
the width 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
reinforced by ply cords and that is
shaped to fit the r im .
...

Index
Audi p re sense . . . . . . . . . . . . . . . . . . . . . . . 120
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Sett ings . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Aud i Serv ice Repair Ma nuals and Literature 383
Aud i side assist . . . . . . . . . . . . . . . . . . . . . . . 128
Aud i smartphone interface . . . . . . . . . 246, 250
Aud i virt ua l cockp it
refer to Instr ume nt cl uster . . . . . . . . . . . . . 10
AUTO Automatic headlights . . . . . . . . . . . . . . . . . 54
Auto Lock (centra l locki ng system) . . . . . . . . 37
Automatic belt ret ractor . . . . . . . . . . . . . . . 266
Automatic climate control . . . . . . . . . . . . . . . 76
Aud i drive select. . . . . . . . . . . . . . . . . . . . . 134
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Automatic climate control system Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Automatic transm ission . . . . . . . . . . . . . . . . . 9 1
E me rgency prog ram . . . . . . . . . . . . . . . . . . 96
Hill descent contro l . . . . . . . . . . . . . . . . . . . 94
Kick -down . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Launch control program . . . . . . . . . . . . . . . 95
Manual sh ift ing . . . . . . . . . . . . . . . . . . . . . . 94
Parking lock emergency re lease . . . . . . . . . 97
Selector lever pos itions . . . . . . . . . . . . . . . . 91
Automatic wipe/wash system . . . . . . . . . . . . 60
Auto Safety Hotline . . . . . . . . . . . . . . . . . . . 26 1
AUTO (button) Automatic climate control . . . . . . . . . . . . . . 78
Auxiliary heater (automatic climate control) 79
AUX input . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Average consumption . . . . . . . . . . . . . . . . . . . 17
Ave rage spee d . . . . . . . . . . . . . . . . . . . . . . . . 17
B
BACK button . . . . . . . . . . . . . . . . . . . . . . . . . 155
Balance (sound) . . . . . . . . . . . . . . . . . . . . . . 252
Bass (sound) . . . . . . . . . . . . . . . . . . . . . . . . . 252
Ba tte ry
J u mp starting . . . . . . . . . . . . . . . . . . . . . . . 374
also refer to Veh icle bat tery . . . . . . . . . . . 33 1
Before driving . . . . . . . . . . . . . . . . . . . . . . . . 254
Belt tensione rs . . . . . . . . . . . . . . . . . . . . . . . 269
Blended gasoline . . . . . . . . . . . . . . . . . . . . . 315
Blower (automatic cl imate control) . . . . . . . . 78
388
B luetoot h
Audio player . . . . . . . . . . . . . . . . . . . . . . . . 230
Connect ing a cell phone . . . . . . . . . . . . . . 175
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 2SO
Boost...... .. .. .. .. .. ............. ... 11
Booster seats . . . . . . . . . . . . . . . . . . . . . . . . 305
Boost pressure indicator . . . . . . . . . . . . . . . . 11
B rake fl uid
Check ing the b rake fluid level . . . . . . . . . . 330
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Brake ass ist . . . . . . . . . . . . . . . . . . . . . . . . 146
B rake fl uid . . . . . . . . . . . . . . . . . . . . . . . . . 330
El ec trome chanical parking b rake . . . . . . . . 88
E mergency b raking function . . . . . . . . . . . . 88
New brake pads . . . . . . . . . . . . . . . . . . . . . 149
Worn brake pads . . . . . . . . . . . . . . . . . . . . . 33
Breaking in New bra ke pads . . . . . . . . . . . . . . . . . . . . . 149
New engine . . . . . . . . . . . . . . . . . . . . . . . . . 80
New t ires . . . . . . . . . . . . . . . . . . . . . . . . . . 3 41
Browser
refer to M edia center . . . . . . . . . . . . . . . . . 237
Bu lbs ............................... 373
Buttons Cont ro l panel (M MI) . . . . . . . . . . . . . . . . . 155
Multifunctio n steering whee l . . . . . . . . 13, 16
P rogramming (multifunction steering
whee l) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
C
Cable ( USB adapter/AUX connector cab le) 233
Californ ia Pr opos ition 65 Wa rning . . . . . . . 3 24
Battery specific . . . . . . . . . . . . . . . . . . . . . 331
Call list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Call options . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Capacities AdBl ue ... .. .. .. .. .. ... .......... .. 319
Fuel t ank . . . . . . . . . . . . . . . . . . . . . . . . . . . 381
Washer fluid reservoir . . . . . . . . . . . . . . . . 381
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 354
Cargo area
refer to Loading the luggage compart-
ment .............................. 259
C atalytic converter . . . . . . . . . . . . . . . . . . . . 322
CD d rive (med ia d rives) . . . . . . . . . . . . . . . . 229