AUDI A4 2015 Workshop Manual

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Clear vision Lights
Switching the lights on and off
F ig . 43 Instrument pane l: headlight control switch
Light switch ·'t/,·
Turn the switch c> fig . 43 to the correspond ing
position . When the lights are switched on, the
:oo: symbol turns on.
0 • The lights are off or the dayt ime running
lights are on:
- USA mod els : The daytime running lights are
activated when the light sw itch
c> fig . 43 is
in the
O position or the AUTO position (only
in daylight conditions) . The daytime running
lights function can be turned on and off in
the radio or MMI* menu
E xteri or li ghtin g
¢ page SO, c> &_ .
-Ca nad a mod els: The daytime runn ing lights
are activated when the light sw itch
¢ fig . 43
is in the O position, :oo: position or the AUTO
posit ion (only in daylight conditions). The
daytime running lights function cannot be
turned off¢&. .
AUTO* -Automatic headlights switch on and
off depending on b rightness, for example in
tw ilight, during rain or in tunnels¢,& .
:oo: -Side marker lights
~D -Low beam headlights
Fog light s/rea r fog ligh t(s)*
Press the appropriate button c> fig. 43:
1D -Fog lights
; 0$ -Rear fog light(s)
,...., l/1 ,....,
Clear vi sion 49
adaptive light *
When switched on, adaptive ligh t adap ts to
curves in the road depend ing on the vehicle
speed and the steering ang le. This provides
better lighting through the curve. The system
operates at speeds between approximately 6 mph (10 km/h) and 68 mph (110 km/h).
St atic corner ing light * (vehicles with adaptive
light) -the cornering light switches on at
speeds up to approximately 25 mph (40 km/ h) when a certain steering wheel angle is
reached or when a turn signal is activated. The
area to the s ide of the vehicle is illuminated
better whe n turn ing .
The adaptive light and the cornering light only
function when the switch is in the AUTO posi­
tion (automatic headlights*) .
A WARNING
-Daytime running lights and automatic
headlights* are only intended to ass ist
the driver . T hey do no t re lieve the driver
of his responsibility to chec k the head ­
lights and to t urn them on manua lly ac­
cording to the current light and visibility
conditions. For examp le, fog cannot be
detected by the light sensors*. So a lways
switch on the headlights
~D under these
weather conditions and when driving in
the dark .
- Crashes can happen when you cannot see
the road ahead and when you cannot be
seen by other motorists. Always turn on
the head lights so that you can see ahead
and so that others can see your car from
the back.
- Please obey all laws when using the
lig hting sys tems described here.
(D Note
The rear fog lights* should on ly be turned
on in accordance with t raff ic regulation, as
the lights are bright for following traffic. ..,.

50 Clear vis ion
@ Tips
- The light sensor* for headlight control is
located in the rear view m irror mount.
You should therefore not apply any st ick­
ers to the windsh ield in this area in order
to prevent malfunctions or failures.
- Some exterior lighting functions can be
adjusted
c> page 50.
- When you remove your key from the igni­
tion while the vehicle's lights are turned
on, a buzzer sounds as long as the driv­
er's door is open .
- In cool or damp weather, the ins ide of
the headlights, turn signals and tail lights can fog over due to the tempera­
ture difference between the inside and
outside. They will clea r shor tly after
switching them on. This does not affect
the service life of the lighting.
- In the even t of a light sensor malfunc­
tion, the driver is no tified in the instru­
ment cluster disp lay¢
page 22.
Turn signals and high beam lever
The lever operates the turn signals, the high
beams and the headlight flasher .
Fig. 44 Tu rn s ig na l and hig h beam lever
Turn sign als ¢i ¢
The turn signals activate when you move the
l ever into a turn s ignal pos ition when the ign i­
tion is switched on.
(D -right turn signal
@-left tur n signa l
The turn s ignal blinks three times if you just
tap the lever .
High be ams and headlight flasher [D
Move the lever to the correspon ding posit io n:
@ -high beams on
@ -high beams off or headlight flasher
The indicator light
ii in the instrument cl us­
te r turns on .
Notes on thes e features
-The turn signals on ly wor k w ith the ignition
t ur ned on. The indicator ligh ts
Ct or a in
the instrument cluster also blink.
- After you have turned a co rner, the turn s ig ­
na l switches off au toma tically .
- The
high beam works on ly w hen the head­
lights a re on. The ind icator ligh t
II in the
instrument cluster illuminates when the
high beams are on .
- The
headlight flasher works o nly as long as
you ho ld the lever -even if there a re no
lights switched on . The indicator light
II in
the instrument cluster illuminates when you
use the headlight flasher.
A WARNING
--
Do not use the h igh beam or headlight
flasher if you know that these could blind
oncom ing traffic.
Adjusting exterior lighting
The functions ore selected in the radio or
MMI" .
.,. Select: !CARI function button> Exte rior
light ing .
Or
.,. Select: !CARI function button > Car systems *
control button > Vehicle s etting s> Exterior
lighting .
Coming home (light when leav ing car }*,
Leav ing home (light when unlocking car )*
The coming home function illuminates the
area around the vehicle when the ignition is
switched off and th e dr ive r's door is open ed.
Depend ing on veh icle equ ipment, the function
can be switched on and off or the length of
time the lig hts remain on* can be ad justed . ..,.

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The leavin g home function i lluminates the
area around the vehicle when unlock ing it.
T his function can be switched on and off.
The
c o ming h om e and lea ving home func­
tions on ly operate when it is dark and the
light switch is in the AUTO posit ion
¢ page 49 , fig. 43 .
Auto headlight s*
When the light switch is in the A UTO
¢ page 49 position, the switch-on po int of the
lights can be changed in the automatic driving
light function.
Daytime running lights
USA m odel s:
You can switch the dayt ime run­
ni ng lights
on and o ff .
Canada mod els:
The function cannot be
turned off .
It is activated a utomat ica lly each
time the ignition is switched on.
Travel mode*
T he headlight beam is asymmetrical. This pro­
v ides stronger illum ination on the s ide of the
road on wh ich you are driving .
If you are driv­
i ng in a count ry that d rives on the opposite
side of the road from your own country, th is
will cau se glare for on coming dr ivers. To pre­
vent glare:
- Trave l mode must be selected in vehicles
with Xenon headlights*.
- In veh icles with halogen headlights, ce rtain
areas of the head light lenses must be cov­
ered w ith wate rproof adhesive covers that
prevent light from passing thro ugh. Fo r
more informat ion, please see your author ­
i z ed Audi dea ler or author ized repa ir faci lity .
(D Tips
When trave l mode is activated, a display in
the dr iver information system indicates
this each time you switch the ignit io n on.
Clear vi sion 51
Emergency flashers
Fig. 45 Center co n sole : em erge ncy flasher sw itc h
The emergency flashers makes other moto­
rists aware that you or your vehicle are in an
emergency situation .
.. Press the switch
Gil ¢ fig. 45 to turn the
emergency flashers on or off .
When the emergency f las hers are on, all four
turn s ignals b link at the same time. The turn
s ignal indicator lights .
1B in the instru ­
ment cluster, as well as the light in the emer­
gency flasher switch ~ blink likewise.
You can indicate a lane change or a tu rn w hen
the emergency flashers are switched on by us­
ing the turn signal lever. The emergency flash­
ers stop temporarily .
T he emergency flashers also work when the
ign ition is turned off .
T he emergency flashers w ill turn on a utomat i­
ca lly if yo u are in an accident where the airbag
has deployed.
(D Tips
You sho uld turn on the emergency f las hers
when:
- yo u are the last veh icle standing in a t raf ­
fic jam so that any other vehi cles coming
can see you, or whe n
- yo ur vehicle has bro ken down or you are
in an eme rgency s ituation, or when
- yo ur vehicle is be ing towed by a tow
truck or if you are tow ing another vehicle
beh ind you.

52 Clear vis ion
Interior lights
Front /rear interior lights
Fig . 46 Front headliner: inte rior lighting controls
Fig. 47 Rear headliner: rear reading lights
@Interio r ligh ts
Press the switch ~ fig. 46 in the correspond­
ing position.
0 -Interior lights off
I -Interior lights on
If the switch is in the center position, the inte­
rior l ighting is controlled automatically.
@ Front/re a r re ading li ghts
To turn a reading light on/off, press the but­
ton~~
fig. 46 or ~ fig. 47.
The appearance and location of the rear read­
ing lights may differ depending on the model.
Instrument illumination
The basic brightness of the illumination for
the instruments, the center console and the
display can be adjusted .
Fig . 48 Inst rume nt illu mination
.,. Press the knob to release it .
.,. Turn the knob toward"-" or"+" to reduce or
increase the brightness .
.,. Press the knob again to return it to its origi­
nal posit ion.
(!') Tips
The instrument i llumination (for dials and
needles) lights on when the ignition is
switched on and the vehicle lights are
turned off . As the daylight fades, the illu­
mination of the dia ls likewise dims auto­
matically and wi ll go out completely when
the ou tside light is very low. This feature is
meant to rem ind you to sw itch on the
headlights when outside light conditions
become poor .
Vision
Adjusting the exterior mirrors
Fig . 4 9 Forward section of driver's armrest: power mir­
r or controls

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Turn the knob to the desired position:
Q/ P -In th is position , you can adjust the
d river's and front passenger's ex ter io r mir ro rs
by turning the knob in the des ired direc tion.
(ijjl -The mirrors are heated depending on the
outside temperature.
8 -The exterior m irrors fold in* . You can ad­
just whethe r or not the mirrors fold in auto­
mat ica lly when locking the vehicle using the
r adio/M M I* <=;>
page 36.
Passenger exter io r mirro r tilt function*
To help yo u see the curb when backing into a
parking space, the surface of the mirror t ilts
slightly . The knob m ust be in the
P posit ion
for this to happen .
You ca n adjus t the tilted mirror sur face by
turn ing the knob in the des ired direction .
When you move out of reverse and into anoth­
e r gear, the new mirror posit ion is stored and
assigned to the key you are using.
T he mirror goes back into its origina l posit io n
once yo u drive forward faster than 9 mph
(15 km/h) or switch the ignition off .
_& WARNING
Curved mirror sur faces (convex or sphe ri­
c al *) incre ase yo ur field of v iew. Remem­
ber that vehicles or o ther objects will ap­
pear smaller and farther away than w hen
seen in a flat m irror. If you use this mirror
to estimate distances of following veh icles
w hen changing lanes, you co uld estimate
incorrectly and ca use an accide nt.
(D Note
- If the mirro r ho using is moved u ninten­
tiona lly (for example, whi le park ing your
vehicle), then you must first fo ld the mir­
ror electrically. Do not readjust the m ir­
ror ho using manually . You could da mage
the motor wh ich controls the m irror .
- If you wash t he vehicle in an automatic
ca r wash, yo u m ust fold the exte rior m ir­
r ors in to reduce the r is k of damage to
the mirrors. Never fold power folding ex-
.
Clear vi sion 5 3
terior mirrors* by hand. Only fo ld them
in and o ut using the power controls.
a) Tips
- Th e ex te rior m irror set tings are stored
w ith the memory function*
~ page 64 .
-If there should be a malfunc tio n i n the
elec trical sys tem, you ca n still ad just the
exterio r mirrors by pressing the edge of
the mir ro r.
Dimming the mirrors
Fig . SO Auto mat ic dimmin g rea rv iew mirror •
Manual dimming rearview mirror
11>-Pull the lever on the bottom of the m irror
back .
Automatic dimming rearview mirror*
.,. Press the button@¢ fig. SO . The indicator
light @ turns on . The rearv iew and exter io r*
m irrors dim a utomatically when lig ht shines
on them, for example from head lights on a
veh icle to the rear.
A WARNING
E lec tro lyte fluid can lea k from automatic
d imm ing mir ro rs if the g lass is b ro ken .
Electro lyte fluid can i rritate skin, eyes and
respiratory system .
- Repeated or prolonged exposu re to e lec­
trolyte can cause irr itation to t he respira ­
to ry system, especially among people
wit h asthma or other resp iratory condi­
tions . Get fresh air immediately by leav ­
i n g the vehicle o r, if that is no t possib le,
ope n w indows and doors all th e way . .,..

54 Clear vision
-If electrolyte gets into the eyes, flush
them thoroughly with large amounts of
clean water for at least 15 minutes;
medical attention is recommended.
- If electrolyte contacts skin, flush affect­
ed area with clean water for at least 15
minutes and then wash affected area
with soap and water; medical attention
is recommended. Thoroughly wash af­
fected clothing and shoes before reuse.
-If swallowed and person is conscious,
rinse mouth with water for at least 15
minutes. Do not induce vomiting unless
instructed to do so by medical professio­
nal. Get medical attention immediately.
Liquid electrolyte leaking from broken mir­
ror glass will damage any plastic surfaces
it comes in contact with. Clean up spilled
electrolyte immediately with clean water
and a sponge.
(D} Tips
- Switch ing off the dimming function of
the inside rear view mirror also deacti­
vates the automatic dimming function of
the exterior mirrors.
- Automatic dimming for the mirror only
operates properly if the sun shade* for
the rear window is not in use or the light
strik ing the inside mirror is not hinde red
by other objects.
- The automatic dimming mirrors do not
dim when the interior lighting is turned
on or the reverse gear is selected .
, Sun visors
Fig. 51 Drive r's side; sun visor
The sun visors for the driver and passenger
can be pulled out of their brackets in the cen­
ter of the vehicle and turned towards the
doors @. After the sun visor has been turned
to the door, it can be extended lengthw ise.
The mirror light switches on when the cover
over the vanity mirror @opens.
Rear door sun shade
Applies to vehicles: with rear door sun shade
Fig. 52 Raised rear door sun shad e
.,. Pull the shade out and hang it in the bracket
on the upper door frame~
fig. 52.

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Rear window sun shade
Applies to vehicles: with rear window s un shade
Q;l I n<11• ' ~---
,, ,,-, 7~~, I , .,,,-~;'j ·,
· . .. , a., , . , , . ~ ..
l . -~ '_I ~~ V
l ---..--~IIJl!I.II &iii.a
Fig. 53 W ith MMI : Button for re ar window sun shade
Fig . 54 W ithout MMI: B utto n for rear wi ndow s un
s hade
.. To extend/retract the sun shade, press the
rn button ~ fig. 53 or ~ fig. 54.
You can adjust the settings for the rear sun
shade so the shade ret racts automat ically
when you se lect the reve rse gear. To do this,
selec t the
!CARI function button> Window s>
R ear blind > automati c> on
or ICAR I fu nction
button >
Car systems * contro l button > Vehi­
cle setting s > Autom atic rear blind
> On. The
current setting is automatically stored and as­
signed to the remote key. The sun shade is ex­
tended again as soon as the vehicle is travel­
ing forward at a speed greater than 9 mph
(15 km/h) if the ign ition has not been switch­
ed off in the meant ime .
A WARNING
When lowe ring or raising the sunshade,
ma ke s ure t he re is no thing in i ts way and
t ha t it has a free path to trave l. This could
cause persona l injury .
Clear vi sion 55
@ Tips
- Pressing the button rn severa l t imes
consecutive ly can trigger t he over load
protect ion. The sun shade can only be ex­
tended/retracted aga in after a brief wait­
ing period.
- The rear window sun shade only func­
tions when the vehicle interior is warmer
than
14°F (-10°() .
Wiper and washer
system
Switching the windshield wipers on
F ig . 55 W indshiel d wiper lever
Fig . 56 all road: Rear wiper ac tu ati on
0 0 N
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....
-
-0 ::, a) m
Move t he windshie ld w iper lever to the co rre­
sponding posi tion:
@ -Windshield wiper off
G)-Interval mode. To ex tend/shorten the
wiper intervals, move the switch @to the
left/r ight. In vehicles w it h a rai n sensor* the
wipe rs turn on in the rain once the vehicle
speed ex ceeds approxima tely 2 mph (4 km/h) .
T he hig her the sens it iv ity of the r ain sensor * is
set (switch @to the right), the earlier the
windshield wipers react to moisture on the
w indshield. In some models, you can switch ..,.

56 Clear vis ion
rain sensor mode off and switch intermittent
mode on in the MMI*. Se lect:
I CAR ! function
button
> C ar sys tem s* contro l button > Dri ver
assi st> Rain s enso r.
In interm ittent mode,
you can adjust the interval time using the ®
switch .
@-Slow wiping
@-Fas t wiping
© -Sing le w ipe
® -Clean the windshield . To eliminate water
drop lets, the w indshield wiper performs one
afterwipe operation after several seconds
while driv ing . You can switch th is fu nction off
by mov ing the lever to position ® within 10
seconds of the afte rwipe operation . The after­
wipe func tion is reactiva ted the next time the
ignition is switched on.
a llroad: The rear w iper automatically switches
on when the reve rse gear is engaged and the
front w indshield w ipers are on and in opera­
tion .
C lean ing the headlights*. The headlight wash­
e r system* opera tes on ly when the headl ights
a re on. If you move the leve r to pos ition @,
the head lights are washed in intervals.
@ -allroad : Wipe the rear window. The rear
wiper moves about every 4 seconds.
(J) -allroad : Clean the rear window . The num­
ber of wiping operations depends on how long
the lever is held in pos ition
(J) .
_& WARNING
- T he ra in sensor is only inte nded to assist
the drive r. The driver is still responsible
for man ually switching the wipers on ac­
cording to the v isibility conditions .
- T he windshie ld may not be treated w ith
water-repe lling windshie ld coating
agents . Unfavorable conditions, such as
wetness, darkness, low sun, can res ult in
increased glare. Wiper blade chatter is
also possible .
- Proper ly functioning windshie ld w iper
blades are required for a clear view and safe driving
I:!) page 57, Replacing
windshield wiper blades.
@ Note
- In the case of frost, check whethe r the
windshield wiper blades are frozen to
the windshield. Sw itching on the wind­
shield wipers can damage the wiper
blades!
- Pr ior to us ing a car wash, the w indshield
w iper system must be sw itched off ( lever
in posit ion @). Th is he lps to prevent un­
intentional switching on and damage to
the windsh ield wiper system .
@ Tips
-The windshie ld wipers are switched off
when the ignit ion is turned off. Act ivate
the winds hield wipers after the ignition
is switched back on by moving the wind­
shield w iper lever to any position.
- Worn or d irty windshield wiper b lades
result in st reaking. This can affect the
rain sensor* function. Check your wind­
shield w ipe r blades regularly.
- The washer fluid nozz les of t he wind­
shield w asher system a re heated at low
temperat ures when the igni tion is on.
- When stopping tempo rarily, (e .g. at a
t raffic light) the set speed o f the wind­
shield wipers is automatically reduced by
one speed.
· Cleaning windshield wiper blades
Clean the windshie ld w iper b lades when they
begin to leave streaks. Use a soft cloth and
glass cle aner to clea n the windshield wiper
blades .
Front wip er
.. Place the windshie ld wiper arms in the serv­
ice pos it ion. Refer to
c> page 5 7.
.. Lift the wiper arm away from the fron t win-
d~.
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Rear wip er*
• Lift the w iper arm away from the rear w in­
dow .
A WARNING
Dirty windshield wiper blades can impair
your view. This can lead to accidents.
Replacing windshield wiper blades
Fi g. 57 R emov ing wi nd shi eld w iper blade
-
Wiper ser vice position /blade replacem ent
position
• Switch the ign ition off and move the w ind­
shield wiper lever to position ©¢
page 55,
fig. 55 . The windshield wipers move into the
service position.
• To bring the wipers back into the original
position, swi tch the ignition on and press
the windshield wiper lever.
You can also turn the service pos ition on or off
in the radio/MM!*:
• Switch the w indshield wipers off (posit ion
@ ¢
page 55, fig. 55).
• Se lect : ICARI funct ion button> Wind shie ld
wiper s
> Servi ce positi on > on /off . Or
• Se lect :
IC ARI funct ion button> Car syste m s*
control b utton
> S ervicing & ch eck s > Wiper
s er vic e pos ition
> On/ Off .
Removing the wiper blade
• Lift the w indshield wiper arm up from the
windshield.
• Press the locking knob
(D ¢ fig. 57 on the
wiper blade . Hold the wiper blade fi rm ly.
• Remove the wiper blade in the direct ion of
the arrow .
Clear vis ion 5 7
Attach ing the wiper blade
• Insta ll the new wiper blade in the reta iner
on the wiper arm@ unti l yo u h ear it click in­
to place on the wiper arm .
• Place the wiper arm back on the windshield.
• Turn the service position off.
A WARNING
For your safety, you should rep lace the
wiper b lades once or twice a year . See your
authorized Audi dealer for replacement b lades.
(D Note
- The windshield w iper blades must only
be replaced when in the service pos ition!
Otherw ise, you risk damag ing the pa int
on the hood o r the windshie ld w iper mo­
to r.
- Yo u should not move your vehicle o r
press the windsh ield wiper lever when
t he wipe r arms are folded away from the
w indshield . The windsh ield wipers wou ld
move back into their original position
and co uld damage the hood and wind­
shield.
- To help prevent damage to the w iper sys­
tem, always loosen blades which are fro­
zen to the windshield before operating
w ipers.
- To help p revent damage to wiper blades,
do not use gasoline, kerosene, paint
thinner, or other solvents on or near the
w iper blades .
- To help prevent damage to the w iper
arms or other components, do not at­
tempt to move the wipe rs by hand .
(D Tips
- Commercial hot waxes applied by auto­
matic car washes affect the how easily
the glass surface can be cleaned .
- You can also use the service position, for
example, if you want to protect the
w indshield from icing by using a cover .

58 Clear vision
Replacing the rear wiper blade
Applies to vehicles: with rear wiper
Fig. 58 Rear w ipe r: Re movi ng the w ipe r blade
Removing the wiper blade
.. Fold the windshield wiper arm away from
the windshie ld .
.. Pull the wiper blade and holder out of the
mount .
Attaching the wiper blade
.. Press the wiper blade holder in the arrow di­
rection
~ fig. 58 into the mount .
.. Fold the w indshield wiper arm back onto the
windshield .
A WARNING
For safety reasons, the windshield wiper
blades should be replaced once or twice
each year.
Digital compass
Switching the compass on and off
Applies to vehicles: with digital compass
The compass direction is shown in the rear­
view mirror.
-
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Fig. 59 Rearview mirror: Dig ital compass activated
.. To switch the compass on or off, press and
hold the button @ until the compass dis­
play in the mirror ~
fig. 59 appears or disap­
pears.
T he digital compass only works when the igni­
tion is on . The directions are indicated with
abbreviations:
N (north), NE (northeast), E
(east), SE (southeast), S (south), SW (south­
west),
W (west), NW (northwest) .
@ Tips
To prevent inaccurate compass readings,
do not bring any remote controls, electr i­
cal devices or metallic objects near the
mirror .
Adjusting the magnetic zone
Applies to vehicles: with digita l compass
The magnetic zone must be adjusted correctly
for the compass to read accurately .
@
Fig. 60 No rth A merica: magnet ic deflection zone
bou nda ries
.. Press and hold the button @~ fig. 60 until
the number of the magnetic zone appears in
the rearview mirror .
.. Press the button @ repeatedly to select the
correct magnetic zone . The se lection mode
turns off after a few seconds.