AUDI A4 2018 Repair Manual

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make objects in the mirror appear smaller
and farther away. Your may estimate incor ­
rectly when you use these mirrors to gauge
your distance from the vehicles behind you
when changing lanes, which increases the risk of an accident .
Q) Note
- Applies to vehicles with power folding exte­
rior mirrors: if the mirror housing was
moved by outside forces (such as an impact
when maneuvering), you must use the pow­
er folding function to fold the mirror all the
way out. The mirrors will make a loud noise
when they latch into place. The mirror hous­
ing must not be moved back into place by
hand because this would impair the func­
tion of the mirror mechanism.
-Applies to vehicles without power folding
exterior mirrors: if the mirror housing was
moved by outside forces (such as an impact
when maneuvering), you must move it back
in place by hand.
- If you wash
th@ vehicle in an automatic car
wash, you must fold the exterior mirrors in
to reduce the risk of damage to the mirrors.
Never fold power folding exterior mirrors*
by hand . Only fold them in and out using
the power controls.
{!) Tips
-If the power adjusting function malfunc­
tions, the glass in both mirrors can be ad­
justed by pressing on the edge of it by hand.
- The exterior mirror settings are stored with
the memory function*
9 page 67.
Dimming the mirrors
Your vehicle is equipped with a manual or auto­
matic* dimming rearview mirror .
Manual dimming rearview mirror
.,. Pull the lever on the bottom of the mi rror back .
Lights and Vision
Automatic dimming rearview mirror*
.,. The interior and exterior mirrors dim automati­
cally when light shines on them, for example
from headlights on a vehicle behind you.
A WARNING ,-
If the glass on an automatic dimming mirror
breaks, electrolyte can leak out. This liquid
can irritate the skin, eyes and respiratory sys­
tem. If there is contact with the fluid, flush
immediately with plenty of water. Consult a
physician if necessary .
- Repeated or long -term exposure to electro­
lyte fluid can lead to irritation of the air­
ways, especially in people with asthma or
other respiratory conditions. Take deep
breaths immediately after leaving the vehi­
cle or, if this is not possible, open all of the
doors and windows as wide as possible.
- If electrolyte fluid enters the eyes, flush
them thoroughly with a large amount of
clean water for at least 15 minutes and then
seek medical attention.
- If electrolyte fluid comes into contact w ith
the skin, flush the affected area with clean
water for at least 15 minutes and then clean
with soap and water and seek medical at­
tention . Clean affected clothing and shoes
thoroughly before wearing again.
- If the fluid was swallowed and the person is
conscious, flush the mouth with water for at least 15 minutes . Do not induce vomiting
unless this is recommended by medical pro­
fessionals . Seek medical attention immedi­
ately .
0 Note
If the glass on an automatic dimming mirror
breaks, electrolyte can leak out. This liquid
damages plastic surfaces and paint . Clean
this liquid as quickly as possible, for example
with a wet sponge .
(D Tips
-If the light reaching the rearview mirror is
obstructed, the automatic dimming mirror
will not function correctly,
59

Lights and Vision
-The automatic dimming mir rors do not dim
when the interior lighting is turned on or
the reverse gear is selected.
Sun visors
F ig. 55 Sun v isor
Sun visor
The sun v isors for the dr iver and front passenger
can be re leased from their mounts and turned to­
ward the doors
¢ fig. 55 (!).
They can a lso be moved back a nd forth length­
wise in this posit ion.
Vanity mirror
The mirror lighting* switches on when the cover
over the vanity mirror @opens .
Sunshade
Applies to: vehicles with sunshade
F ig. 56 Rear doo r: sunshade
Re ar door sunshade
• Pu ll the sunshade out and attach it to the re­
ta iner on the upper door
frame¢ fig. 56.
60
Windshield wipers
Switching the wipers on
Fig. 57 Wind shi eld wiper lever
F ig. 58 allroad: rea r w in dow wiper operation
Move the windshie ld wiper lever to the corre­
sponding posit ion:
@ -Windshield wipers off
(!)-Rain senso r mode. The w ind shield wipers
switch on once the vehicle speed exceeds approx­
i mately 2 mph (4 km/h) and it is raining . The
higher the sensitivity of the rain sensor that is set
(switch ® to the right), the earlier the wind­
shield wipers react to mo isture on the wind­
shield. You can deact ivate the ra in sensor mode
i n the Infotainment system, wh ich sw itches the
i nte rmittent mode on . To do this, se lect:
I MENU I
button > Vehicle > left contro l bu tton > Driver
a ss istance > Rain sen sor .
In inte rm it tent mode,
you can adjus t the interval time using the switch
®·
@ -Slow w iping
@ -Fast wip ing
@ -Sing le wipe. If you ho ld the lever in this posi­
tion longer, the wipers switch from slow wiping
to fast wiping.
.,.

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®-Clean the windshield . The wipers wipe one
time after severa l seconds of driving to remove
water drop lets. You can switch this function off
by moving the lever to position ® within 10 sec­
onds of the afterwipe. The afterwipe function is
reactivated the next time you switch the ignition
on .
C lean the headlights*. The headlight washer sys­
tem" operates only when the low beam head­
lights are on . If you move the lever into position
@, the headlights will be cleaned at fixed inter­
va ls .
Applies to: allroad:
@ -Wiping the rear window.
T he number of wipes depends on the windsh ield
wiper movement .
The rear wiper automatically switches on when
the reverse gear is selected and the front wind­
shield wipers are on and running .
Applies to: allroad:
0 -Clean ing the rear win­
dow. The number of wipes depends on how long
the lever is held in position
(J).
A WARNING
-The rain sensor is only intended to assist the
dr iver . The driver may still be responsible
for manually sw itching the w ipers on based
on v is ibi lity conditions.
- The windshie ld may not be treated with wa­
ter-repelling windshield coating agents . Un­
favorable conditions, such as wetness, dark­
ness or low sun, can result in increased
glare, which increases the risk of an acc i­
dent . Wiper blade chatter is also possible.
- Properly functioning windsh ield wiper
blades are required for a clear view and safe
driving
¢ page 62, Replacing wiper
blades.
(D Note
- If there is frost, make sure the windshie ld
wiper blades are not frozen to the wind­
shield. Switching on the windshield wipers
when the blades are frozen to the wind­
shield can damage the wiper blades .
- The windshield wiper system must be
switched off ( lever in position 0) before us-
Lights and Vision
ing a car wash. This prevents the wipers
from switching on unintentionally and caus­ ing damage to the windsh ield wiper system .
(D Tips
- The windshie ld wipers switch off when the
ignition is switched off . You can activate the
windshield wipers after the ignition is
switched back on by moving the w indshield
wiper lever to any position.
- Worn or dirty windshie ld wiper blades resu lt
in streaking. Th is can affect the rain sensor
function . Check your windshield w iper
blades regularly .
- The washer fluid nozzles for the windshield
washer system are heated at low tempera­
tures when the ign ition is on .
- When stopping temporarily, such as
at a
traffic light, the speed of the windshield
w ipers automatically reduces by one level.
Cleaning the wiper blades
Clean the wiper b lades when you see w iper
streaks. Use a soft cloth and a glass cleaner.
Windshield wiper
.,. Place the windshield wiper arms in the service
position
¢ page 62.
.,. Fold the windsh ie ld wiper arms away from the
w indshie ld.
Rear window wiper
Applies to : all road
.,. Fold the wiper arm away from the rear window.
A WARNING
D irt y windshield wiper blades can impa ir vi­
sion, wh ich i ncreases the risk of an accident .
-
61

Lights and Vi sion
Replacing wiper blades
Fig. 59 Re mov ing w indshi eld w iper blades
Windshield wiper service position/blade
replacement position
.,. To bring the windshield wipers into the service
pos ition, turn the ignition off and move the
winds hield wiper leve r into position @
¢page 60, fig. 57 .
.,. To bring the wipers into the starting pos it io n,
tu rn the ignition on and move the windshield
wiper lever into position @for at least two sec­
onds
¢ page 60, fig. 57 .
You can also turn the service position on o r off in
the Infota inment system :
... Switch the windshield wipers off (position @
¢page 60, fig. 57) .
.,. Select : the IMENU ! button> Vehicle> left con­
trol button >
Service & checks > Wiper change
position .
Removing the wiper blade
... Fo ld the windshield wiper arm away from the
windshield .
.,. Press the locking knob (D ¢ fig. 59 on the wiper
blade . Hold the wiper blade firmly .
.,. Remove the wiper blade in the d irection of the
arrow .
Installing the wiper blade
.,. Insert the new wiper b lade into the mount on
the wiper arm
@ until it clicks into place .
.,. Place the wiper arm back on the windshield .
.,. Turn the serv ice position off .
62
A WARNING
,--
For safety reasons, the windshield wiper
blades should be replaced once or twice each
year .
(]) Note
- Only fold the w indshield w ipers away when
they are in the service pos ition. Otherwise,
you risk damaging the paint on the hood or
the windsh ield wiper motor.
- You should not move your veh icle or operate
the windsh ield wiper lever when the wiper
arms are folded away from the windshie ld.
Th e windshie ld wipers would move back
in­
to their original position and could damage
the hood and windshie ld.
- To reduce the risk of damage to the wiper
system, always loosen blades which are fro­
zen to the windshield before operating the
wipers.
- T o reduce the risk of damage to the wiper
blades, do not use gasoline, kerosene, pa int
thinner, or other solvents on or near the
wiper blades.
- To reduce the risk of damage to the wiper
arms or other components, do not attempt
to move the wipers by hand .
(D Tips
- You can also use the service position, for ex­
ample, if you want to protect the windshield
from icing by using a cover .
- You cannot activate the service position
when the hood is open .

Replacing rear wiper blade
Applies to: vehicles with rear window wiper
Fig . 60 Rear window w iper : in stall ing the wiper b lade
Removing the wiper blade
... Fold the w iper arm away from the rear window .
... Remove the wiper blade from its holder.
Installing the wiper blade
... Press the wiper blade mount into the retainer.
... Fold the window wiper arm back onto the rear
window.
A WARNING
For safety reasons, the windshield wiper
blades should be replaced once or tw ice each
year .
Digital compass
Switching the compass on and off
Applies to: vehicles with digital compass
Fig. 61 Rearview mirror: digita l compass is sw itc hed on
Lights and Vision
.,. To turn the compass on or off, press the button
@ until the compass in the mirror appears or
disappears.
T he dig ital compass only works when the ignition
is turned on . The directions are indicated with ab­
breviations:
N (north), NE (northeast), E (east),
SE (southeast), S (south), SW (southwest), W
(west), NW (northwest).
(0 Tips
To prevent inaccurate compass readings, do
not bring any remote controls, electrical devi­
ces or metallic objects near the mirror.
63

Lights and Vision
Adjusting the magnetic zone
Applies to: ve hicles w ith d ig ital compass
The magnetic zone must be adjusted correctly for the compass to read accurately.
Fig. 62 Magnetic zone map
• Press and hold the button@~ page 63, fig. 61
unt il the number of the selected magnetic zone
appears in the rea rview mir ror .
• Press the b utton @repeatedly to select the
correc t magnetic zone . The sele ct ion mode
turns off after a few seconds .
Calibrating the compass
App lies to: ve hicles with d ig ital compass
If the display is incorrect or inaccurate, the com­
pass must be recalibrated .
• Press and hold the button @ until a C appears
in the rearv iew mirror.
• Drive in a circle at about 6 mph ( 10 km/h) unt il
a d irec tion is displayed i n the in terior rearv iew
mirror .
64
A WARNING
To reduce the ris k to yourse lf and o ther driv·
e rs, calibra te the compass in an area where
there is no traffic .

Seats and storage
General information
A WARNING
See¢ page 254, Driving safety for important
information, tips, suggestions and warnings
that you sho uld read and follow for your own
safety and the safety of yo ur passengers.
Front seats
Power seat adjustment
Fig. 63 Front seat: adjusting the seat (ve rsion A)
F ig . 6 4 Front seat: adjusting the seat (ve rs ion B)
@-Moving the seat fo rward/back: press the but­
ton forward/back.
@ -Moving the seat up/down: press the button
up/down. To adjust the front seat cus hion, press
the front bu tton up/down. To adjust the rear sea t
cushion, press the rear b utton up/down.
@ -Adjusting the backrest angle: press the but­
ton forward/back.
~ © -Lengthen ing/shortening the upper thigh
~ ~ support* ¢ fig. 63. Lift the g rip hand le . A spring
~ moves the support forward. 0 0
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Seats and storag e
©-Switching the massage function* on/off
¢ fig. 64. Select the type of massage with the
multifunction
button*¢ page 65.
@ -lumbar support or mu ltifunction button*
¢
page 65. To adjust the lumbar support, press
the button in the applicab le location.
A WARNING
-
-The power front seats can a lso be adjusted
when the ignition is switched off. To reduce the risk of injury, children should never be
left unattended in the vehicle for this rea­
son .
-To reduce the r isk of an accident, only adjust
the dr iver's seat when the vehicle is station­
ary.
-Exercise caution when adjust ing the seat
he ight. Unsupervised or careless seat ad­
justment can pinch finge rs or hands, which
increases the risk of injury.
-The front seat backrests must not be re­
clined too far back when driving, because
this impa irs t he effect iveness of the safety
be lts and airbag system, which increases
the risk of injury.
Multifunction button
Applies to: vehicles wit h mult ifunct ion butto n
You can adjust the massage function, lumbar
support and side bolsters using the multifunc­ tion button.
F ig. 65 Infotain ment system: seat sett ings
Operating
"' If you turn the multifunction button (D
¢ page 65, fig. 64 to the left or to the r ight,
65

Sea ts and stor age
the possible seat settings @ are shown in the
Infotainment system
r::!;> fig . 65.
• To select a seat setting, turn the multifunction
button
(I) in the corresponding direction until
the desired seat setting is outlined in red.
• The arrows @ represent the possible adjust­
ments. Fo r example, to lower the lumbar sup­
port, press the multifunction button
(I) down.
The co rresponding ar row © lights up.
The follow ing seat sett ings @ are possible:
Massage function * -select the massage type
Wave, St ret ch , Knead or Off . You can adjust the
intens ity of each massage from 1 to 3. You ca n
sw itch the selected massage on/off using the
button @
r::!;> fig. 65.
Lumbar support -you can adjust the lumbar sup­
port up/down and to be stronger/weaker.
Side bolsters* -you can increase/decrease the
side support in the seat using the side bolsters
on the seat backrest.
@ Tips
- The massage function switches off a uto­
matically after approx imately 10 minutes.
- The air in the side bo lsters* is released as
soon as the driver's door opens. T his makes
i s possible to enter and exit the vehicle
more comfortably. As soon as you start driv­
i ng the veh icle, the side bo lsters fill.
Center armrest
There is a storage comportment under the arm­
rest.
F ig . 66 Comfort center armrest between the driver's seat
and front passenger's seat
66
• To adjust the ang le, raise the armrest from the
starting position notch by notch.
• To bring the armrest back into the sta rt ing po­
sition, raise it out of the top notch and fold it
back down.
The armrest can slide forward and back .
Head restraints
Front head restraints
Applies to: vehicles with adjustable head restraints
Fig. 67 Fro nt seat: adjust ing the head restraint
Adjust the head restraints so the upper edge is as
even as possible w ith the top of your head . If that
i s not possib le, try to adjust as close to this pos i­
tion as possib le .
Adjusting the head restraints
• To move the head restra int upward/forward,
hold it at the sides w ith both hands and sl ide it
upward/forward until yo u feel it click into
place.
• To move the head restra int downward/back­
ward, press the s ide button and slide t he head
restraint downward/backward . Release the but­
ton and slide the head restraint farther unti l it
clicks into place.
&_ WARNING
Always read and follow the applicable warn­ i n gs
r::!;> page 257, Proper adjustment of head
restraints.
-

Rear head restraints
Fig. 68 Re ar seat : adjus ting the head re stra in t
Fig. 69 Re ar seat: remov ing the head rest ra in t
If passenge rs are s itting in the outer rear seats ,
ad just the head restraints so that t he upper edge
of the head restraint is as level as possib le with
the upper part of their head . If that is not possi­
ble, try to adjust as close to this posit ion as pos­
sible . If your ve hicle has a midd le seat, adjust
that head restraint all the way up
c:> A_
Mo ving the head rest raint s
.. To move the head restraint upward, hold it at
the sides w it h both hands and slide it upward
until it clicks into place
c:> fig . 68 .
.. To move the head restraint down, press the
button -arrow-
c:> fig . 68 and slide the head re­
straint downwa rd.
Remo ving the head restraints
.. Move the head restraint upward as far as it can
go .
.. Press the release point c:> fig. 69 using the me­
chanical key
c:> page 38, Key set and press the
bu tton -arrow-
c:> fig. 68. Pull the head rest raint
out of the backrest a t the same time
c:> &_ .
Seats and storag e
Installing the head restraints
.. Slide the pos ts on the head restrain t down into
the guides until the posts click into p lace .
.. Press the button -arrow-c:> fig. 68 and slide the
head rest raint all the way down . You shou ld not
be able to remove the head restraint from the
back rest without pressing the button.
_& WARNING ~
-Always read and follow the applicable warn­
ings
c:> page 257, Proper adjustment of
h ead restraints .
-Only remove the head restra ints from the
rear seats when it is necessary for installing
a child safety seat
c:> page 295 , Child safe­
ty .
Install the head restraint again immedi­
ately once the child safety seat is removed. D riving with the head restra ints removed or
not in the upright position increases the risk
of serious injury .
Memory function
Description
Applies to: vehicles with memory function
Using the memory function, you can quickly and
easily store a persona l seat p rofile for the d river
and recall the set tings late r. The memo ry func­
t ion is controlled by the remote contro l key and
the memory buttons in the driver 's door .
T he driver's se at profile is stored again and as­
s igned to the remote con trol key each t ime the
vehicle is locked . W hen you open the door, the
seat profile is automatically recalled . If two peo ­
ple use the v ehicle , it is recommended that each
person always uses the ir
"own" remote control
key.
T wo seat p rofiles can be stored each using the
memory buttons . Once they are stored, these
seat p rofiles can be selected at any t ime .
T he following se tt ings a re stored :
67

Seats and storage
Remote con- Memory but-
trol key ton
Driver Driver
Seat X X
Both exterior
X X mirrors*
Remote control key
Applies to: vehicles with memory function
The driver's seat profile can be assigned to the
remote control key when the vehicle is locked .
.,. Select in the Infotainment system : IMENUI but­
ton >
Vehicle > left control button > Vehicle
settings > Seats > Driver's seat > Store set­
tings on remote control key .
(D Tips
If you do not wish to have the seat profile for
another driver assigned to the remote control
key, switch the memory function off in the In­
fotainment system.
Memory buttons
Applies to: vehicles with memory function
Fig. 70 Drive r's doo r: me mory function butto ns
Storing a seat profile
.,. Press the ISETI button. The LED in the button
turns on .
.,. Press memory button II] or [Ii.
A signal tone will sound when it is successfully
stored.
Accessing a seat profile
... If the driver's door is open and the ignition is
switched off, press the memory button.
68
.,. If the driver's door is closed or the ignition is
switched on, press and hold the memory but­
ton until the seat adjustment is complete .
A WARNING
-For safety reasons, the seat sett ing can only
be recalled when the vehicle is stationary to reduce the r isk of an accident.
- In an emergency, seat adjustment operat ion
can be stopped by p ressing the
ISETI button
or the buttons @or@
Q page 65, fig . 64 .
Sockets
Fig. 71 Cente r conso le: 12 vo lt socke t
Fig. 72 Rear center co nso le: 12 vo lt socket *
The 12-volt sockets can be used for electrical ac­
cessor ies. The power usage must not exceed
120 watts.
There is an additional 12 volt socket* located on
the side trim panel in the luggage compartment.
A WARNING
The sockets and the electrical accessories con­
nected to them only function when the igni­
tion is switched on. Incorrect usage can lead
to serious i njuries or burns. To reduce the r isk
,..