2018 AUDI A4 warning light

Opening and closing
Key set
Fig. 23 Your veh icle key set
@ Remote control key with integrated
mechanical key
You can unlock/lock your veh icle w ith the remote
control key . A mechan ical key is integrated in the
remote control
key ~ page 39.
@ Key fob with vehicle code
Appl ies to veh icles with A udi co nnect vehicle con trol
Open the key tag and scratch to reveal the veh icle
code . You can unlock the Audi connect vehicle
control se rvices* for your vehicle with this vehicle
code . For additional information, see
~ page 198 .
Replacing a key
If a key is lost, see an authorized Audi dealer or
authorized Audi Service Facility. Have
this key de­
activated .
It is important to bring all keys with
you .
If a key is lost, you should report it to your
insu rance company.
Number of keys
You can check the number of keys assigned to
your vehicle in the Infotainment system . To do
this, select the
IM ENU I button > Vehicle > left
control button
> Service & checks> Vehicle in·
formation . This way, you can make sure that you
have all the keys when purchasing a used vehicle.
Electronic immobilizer
The immob ilizer prevents unauthorized use of
the vehicle .
Under certain circumstances, the vehicle may not
be able to start if there is a key from a different
veh icle manufacturer on the key chain.
38
Data in the master key
When dr iving, service and maintenance-re levant
data is continuously stored in your remote con­
trol key. Your A udi service advisor can read out
this data and tell you about the work your vehicle needs . This applies also to vehicles with a con­
venience key*.
Personal convenience settings
If two people use one vehicle, it is recommended
that each person always uses "their own" master
key . When the ign ition is turned off or when the
vehicle is locked, personal convenience settings
for the following systems are stored and as­
s igned to the remote master key.
- Climate control system
-Steering wheel heating*
-Central lockin g system
-Interior lighting*
-Exter ior lighting
- Rain sensor
- Memory function*
- Park ing a id *
-Adaptive cr uise control *
-Active lane assist*
-Side assist*
-Traff ic jam assist*
- Distance warning*
-Audi pre sense*
- Speed warning *
The stored settings are automatically recalled
when you unlock the vehicle, open the doors or
turn on the ignition .
~ WARNING
Always take the vehicle key with you when
leaving the vehicle, even for a short period of
time. This applies particularly when children
rema in in the vehicle . Otherwise the children
could start the engine or operate electrical
equipment such as power windows .
(© Tips
-
-The operation of the remote control key can
be temporarily disrupted by interference
from transmitters near the veh icle work ing
1J11,

.. To lock the vehicle, close the door and touch
the sensor in the door handle
on ce c::> fig. 28 . Do
not hold the door handle while doing this .
You can u nlock/ lock the vehicle at every door.
The remote control key cannot be more than ap­
proximately 4 feet (1.5 m) away from the door
handle. It makes no difference whether the mas­
ter key is in your jacket pocket or in your brief­
case, for example .
If you hold the door handle while locking, this
can impair the locking function.
The doo r cannot be opened for a br ief period di­
rect ly after locking it. This way you have the op­
portunity to check if the doors locked correctly.
The settings in the Infotainment system deter­
mine if the entire vehicle or on ly one of the doors
is unlocked when unlocking the vehicle
c::> pag e 41.
A WARNING
Read and following all WARNINGS c::> &. in De­
scription on page 3
7.
@ Tips
If your vehicle is left standing for a long peri­
od of time, note the following:
-The energy management system grad ually
turns off unnecessary convenience functions
to prevent the vehicle battery from draining
and to mainta in the vehicle's ab ility to start
for as long as possible. You may not be able
to unlock your vehicle us ing the convenience
key .
Central locking switch
Fig. 29 Drive r's door : central loc king switch
Openin g an d clos ing
.. To lock the vehicle, press the l'.D button c::> &_ .
.. To unlock the vehicle, press the @ button.
When locki ng the vehicle with the central lock ing
switch, the following applies:
-Opening the door and the luggage compart­
ment lid from the
outside is not poss ible (for
secur ity reaso ns, such as when stopped at a
light) .
-The LED in the centra l locking sw itch t urns on
when all doors are closed and locked .
- You ca n open the doors individua lly from the
inside by pu lling the doo r handle.
- In the event of a crash with a irbag deploymen t,
the doo rs unlock automat ica lly to allow access
t o the vehicle .
~~ WARNING
-
- The central locking switch a lso works when
the ignition is switched off and automatica l­
ly locks the entire vehicle when the
l'.D but­
ton is pressed.
-The central locking switch is inope rative
when the vehicle is locked from the outs ide.
-Locked doors make it more difficult for
emergency workers to get into the vehicle,
which puts lives at r isk. Do not leave anyone
behind in the vehicle, especially children.
-Read and fo llowing a ll WARNINGS c::> &. in
Description on page 3
7.
(D Tips
Your vehicle locks automatically when it reaches a speed of 9 mph (15 km/h) (Auto
Lock)
c::> page 37. You can unlock the vehicle
again using the
ca button in the central lock­
i ng switch.
Setting the central locking system
In the Infotainment system, you can set which
doors the central locking system will unlock .
.. Select in the Infotainment system: I MENU! but­
ton
> V ehicle > left control b utton > Vehicle
settings > Central lock ing .
Door unlo cking
-you can decide if All doors or
only the
Dri ver 's door shou ld unlock. The
41

triggered. The anti-theft alarm system is activat­
ed when the vehicle is locked as usua l.
It
switches off when the vehicle is unlocked.
If the a larm is trigge red, it w ill shu t off automat­
ically a fter a ce rtain amount of time . Switch the
ignition on or press
the m button on the remote
control key to turn
off the alarm.
Luggage compartment
Lid
Opening /closing the luggage compartment
lid
Fig . 32 Driver 's door: opening the luggage compartment
lid
Applies to: vehicles with automatic transmission:
The luggage compartment lid can only open
when the selector lever is in P.
Applies to: vehicles with manual transmission:
The luggage compartment lid can only open
when the parking brake is set. Pull the
«el) sw itch
~ page 88 to set the parking brake.
Opening th e luggage compartment lid
.,. Press and hold the c:;; button on the remote
contro l key for at least one second . The luggage
compartment lid unlocks and opens slightly . Or
.,. Press the handle in the luggage compartment
l id. Or
.,. Pull the c:>* switch in the dr iver's door.
Cl osing the luggage compartment lid
.,. Use the inside gr ip to pull the luggage com­
partment lid down and allow it to close using a
gentle p ush
~ ,&. .
Op enin g an d clos ing
A WARNING
--After closing the luggage compartment lid,
make sure that it is latched . Otherw ise the
luggage compartment lid could open sud­
denly when dr iving, which increases the r isk
of an a cc ident.
- Never drive with the luggage compartment
lid ajar or open, because poisono us gases
can enter the vehicle interior and create the
risk of asphyx iat ion.
- Never leave your veh icle unattended when
the luggage compartment lid is open. A
child cou ld climb into the veh icle through
the luggage compartment. If the luggage compartment lid was then closed, the child
would be trapped in the vehicle and unable
to escape. To reduce the risk of injury, do
not allow children to play in or around the
veh icle . Always keep the luggage compart­
ment lid and the doors closed when the ve­ h icle is not in use.
-Always make sure no one is in the luggage
compartment lid's range of motion when it
is closing, especially near the hinges. Fin­
gers or hands could be pinched.
© Tips
- When the vehicle is locked, the luggage compartment lid can be unlocked separately
by pressing the
c:5 button on the remote
control key. The luggage compartment lid
locks automa tically when it is closed again.
- T he settings in the Infotainment system de­
termine if the luggage compartment lid can be opened using the
hand le~ page 41 .
- In case of an emergency or a fau lty handle,
t he luggage compartment lid can be opened
manually from t he
ins ide ~ page 46.
43

Opening and closing
Child safety lock
The child safety lock prevents the rear doors
from being opened from the inside and the rear
power windows from be operated .
Fig. 40 Section of driver's door: co ntrols
Fig. 41 Rear door: chil d safety lock
0 N M 9 ::J co (D
• T o deactivate/activate the power window
switch in the rear doors, press the@ button in
the driver 's
door ¢ fig. 40. The indicator light in
the button turns on/blinks.
• To also deactivate/activate the inner door han­
dle, open the respective rear door and turn the
key switch with the mechan ical key in the direc­
tion of the arrow or opposite the direct ion of
the arrow
<=> fig. 41 .
Message in the instrument cluster display
faj Childproof catch: malfunction! Please con­
tact Service
There is a malfunction in the child safety lock.
Press the@ button again.
If the message stays on, drive immediately to an
authori zed Audi dealer or authorized Audi Service
Facility to have the malfunction repaired.
48
A WARNING
-Always take the vehicle key with you when
leav ing the vehicle, even for a short period
of time . This applies part icularly when chil­
dren remain in the vehicle . Otherwise chil­
dren could start the engine or ope rate elec­
trical equipment (such as power windows),
which increases the risk of an acc ident.
- A malfunction in the child safety lock could
allow the rear doors to be opened from the
inside, which increases the risk of an acci­
dent .
Power windows
Controls '
The driver con control all power windows .
Fig. 42 Driver"s door: power w indow controls
All powe r window switches are equipped with a
two-stage function :
Opening and closing the windows
a, .... M 0 ::, (X) (D
• To open or close the window completely, press
the switch down or pull the switch up briefly to
the second level. The operat ion will stop if the
sw itch is p ressed/pulled again.
• To select a position in between opened and
closed, p ress/pu ll the switch to the first level
until the desired window position is reached.
Power window switches
CD Left front door
@ Right front door
® Left rear door
© Right rear door

Opening and clo sin g
When the valet parking function is switched on,
the message
V alet pa rking acti vated appears in
the instrument cluster display when you switch
the ignition on.
(D Tips
Please note that the luggage compartment
can still be accessed from the vehicle interior
in vehicles with fixed rear seat backrests or
ones that cannot be locked, even when the
valet parking function is switched on.
Garage door opener (HomeLink)
Description
Applies to: veh icles with garage door opener (Homelink)
Fig. 46 Garag e door ope ner: exa mples o f usage for di ffer­
ent systems
W ith the garage door opener (Homel ink), you
can act ivate systems such as the garage doors,
security systems or house lights from inside your
veh icle. Three buttons are integ ra ted in the head­
line r that can be programmed to up to th ree re­
mote controls.
To be ab le to operate systems using the garage
door opene r, the buttons in the head line r must
first be programmed.
A WARNING
When ope rating o r programming the garage
door opener, make sure that no people or ob ­
jects are in the area immediately surrounding
the equipment. Peop le can be injured or prop­
erty can be damaged if struck when closing.
52
@ Tips
- For security rea.sons, we recommend that
you clear the programmed buttons before
selling the vehicle.
- For additiona l information about Homelink,
visit www.homelink.com.
- For an exp lanation on conformity w ith the
FCC regulations in the Un ited States and the
Industry Canada regulat ions, see
q page386.
Operation
Applies to : vehicles with garage door opener (Homelink)
Requirements : the button in the headliner must
be programmed ¢
page 52 and the vehicle
must be w ithin range of the system, such as the
garage door.
.,. Press the button to open the garage door . The
LED @ Q page 52, fig. 47 blinks or turns on .
.,. Press the button aga in to open the garage
door .
{D Tips
When opening or closing the garage door, do
not press and hold the button longe r ten sec ­
onds or the garage doo r opener w ill swi tch to
programming mode.
Programming buttons
Applies to: vehicles with garage door opener (Home link)
I 111 111
Fig. 47 Headline r: cont rols
N (0 0 0
1 m
You can prog ram bo th fixed code and rolling code
systems using this procedure .
..,.

Lights and Vision
Lights and Vision
Exterior lighting
Switching the lights on and off
--- --------...... ~
I
Fig. 48 Instrument panel: light sw itch w ith buttons
Light switch ·ti :
Turn the light switch to the corresponding posi­
tion when the ignition is switched on.
;oo: and the
selected pos ition turn on (except pos ition 0).
0 -The daytime r unning lights a utomat ica lly turn
on . In veh icles for certain markets, you can
switch the automatic daytime runn ing lights on
and off in the Infotai nment* system.
AUTO -T he head lights automatically adapt to the
surrounding brightness.
:oo: -Parking lights
io -Low beam headlights
Buttons
When you turn the light sw itch to the AUTO or
low beam headlight position
io, you can activate
the following functions:
jo -All weather lights. The headlights automati­
cally adjust so that there will be less glare, for
examp le when th e road surface is wet.
0$ -Rear fog lights
Automatic headlight range control system
Your veh icle is equipped wi th a n automatic head­
light r ange control system th at red uces glare fo r
oncoming tra ffic if the vehicle load changes. The
headlight range ad justs automatica lly.
54
Audi adaptive light
App lies to: vehicles wi th adaptive light
Adap tive ligh t provides be tter visibility when it i s
dark by adapting the ligh ts to the road conditions
based on speed, such as on expressways, r ura l
roads, at intersections, and in curves. The adap ­
tive light only functions when the light switch is
i n the AUTO position.
A WARNING
-Automatic headlig hts* are on ly intended to
assist the driver. They do not relieve the
driver of responsib il ity to check the head­
lights and to t urn them on manua lly ba sed
on t he curre nt ligh t and v is ibility conditions.
F or examp le, fog cannot be detec ted by the
light sensors. So always switch on the low
beams under these weather condit ions and
when dr iv ing in the dark
fD .
- The rear fog lights shou ld only be turned on
in accordance w ith traffic regulations, to
prevent glare for traffic behind your vehicle.
- Always observe legal regulat ions when us­
ing the lighting systems desc ribe d.
{l) Tips
- Th e light sensor for the a utomat ic he ad ­
lights * is in the rearview mir ror mount. Do
not p lace any stickers in this area on the
w indshield.
- A warning tone will sound if yo u ope n the
door when the exte rior lights a re switched
on.
- On ly the front headlights turn on when t he
daytime running lights are switched on* . In
vehicles in certain markets, t he tail lights
w ill also t urn on.
- In cool or damp weather, the inside of the
head lights, t urn signa ls and ta il lig hts can
fog over due to the temperature difference between the inside and outside. They w ill
clear shortly afte r switching them on. This
does not affect the service life of t he light­
mg.

Turn signal and high beam lever
The lever operates the turn signals, the high
beams and the headlight flasher .
Fig. 49 Turn signal and high beam lever
Turn signals ¢¢
N
0 0
> u. C0
The turn signals activate when you move the lev­
e r i nto a turn s ignal position when the ign ition is
switched on.
(D -Right turn signa l
@-Left turn signal
The turn s ignal blinks three times if you just tap
the lever.
High beams and headlight flasher ~D
Move the lever to the corresponding position:
@ -High beams on (vehicles with high beam as­
sistant*) ¢
page 55
©-High beams off or headlight flasher
The
II ind icator light in the instrument cluster
turns on.
A WARNING
H igh beams can cause glare for other drivers,
which increases the risk of an acc ident. For
this reason, only use the h igh beams or the
head light flasher when they will not create
glare for other drivers.
Lights and V ision
High beam assistant
Applies to: vehicles with high beam assistant
The high beam assistant automatically turns the
high beams on or off depending on the surround­
ing conditions .
A camera on the rearview mirror mount can de­
tect light sources from other road users . The high
beams sw itch on or off automatically depending
on the posit io n of vehicles driving ahead and on­
coming vehicles, the vehicle speed and other en­
vironmental and traffic conditions.
Activating high beam assistant
Requirement: the light sw itch must be set to the
AUTO posit ion and the high beam ass istant must
be switched on in the Infota inment system
¢p age 56.
.,. To act ivate the high beam ass istant, tap the
lever forward @¢
page 55, fig . 49 . The lj!a in­
d icator light appears in the instrument cluster
disp lay and the high beams a re switched on/off
automatically. If the high beams were com­
p letely or partially switched on, the
II indica­
to r light turns on.
Switching the high beams on/off manually
If the high beams did not switch on/off automat­
ically as expected, yo u may swi tch them on or off
man ua lly ins tead:
.,. To switch the h igh beams on manua lly, tap the
lever forwa rd @ ¢
page 55, fig. 49. The II in­
dicator light turns on.
.,. To switch the high beams off manually, pull the
lever back©¢
page 55, fig. 49. The high beam
assistant is deactivated .
Operating the headlight flasher
.,. To operate the headlight flasher when the high
beam ass istant is activated and high beams are
sw itched off, pull the lever back ©¢
page 55,
fig. 49.
The high beam assistant remains ac­
tive .
Messages in the instrument cluster display
ml Audi adaptive light: malfun ction! See own-
er's manual
..,.
55

Lights and Vision
Ir.a Head light a ssista nt: malf unction! See own­
er' s manual
Drive to an a utho rized Aud i de aler or authorized
Aud i Serv ice Facility immediately to have the
malfunction corrected . You can still switch the
high beams on or off manually .
II Headlight assi stant : currently unavail able .
Camera view re stricted due to surroundings .
See owner's manual
The camera view is b lo cked , fo r example by a
s t icker o r debr is.
The sensor is located between the interior rear­
view mir ror and the windshield . Do not p lace any
stickers in th is area on the windshield .
_& WARNING
High beam assistant is only i ntended to assist
t he driver. The dr iver is still res ponsible for
cont ro lling the headlights and may need to
switch them on and off manually depend ing
on light and visib ility co nditions . It may be
necessary to ope rate them manua lly in s itua­
tions such as:
- In adve rse weathe r cond itions such as fog,
heavy ra in, b low ing snow or sp raying water .
- On roads where oncoming traffic may be
partia lly obscured, s uch as exp ressways .
- When there a re road users that do not have
s uf ficient lighting, s uch as bicyclers o r
vehicles with dirty ta il lamps.
- In tight curves and o n steep hills .
- In poorly lit areas .
- Wi th stro ng reflecto rs, such as s igns.
- If the area of the windsh ield near the senso r
is fogged ove r, dirty, i cy or covere d with a
st icker .
Adjusting the exterior lighting
The functions ar e adjust ed in the Infotainm ent
system.
• Se lect in the Infotainment system: I M ENU I but­
ton
> Vehi cle > left contro l button > Vehicle
setting s
> Exterior lighting .
56
Automatic headlights
You can adjus t the following se ttings in the Au ­
to-dimming high beam s
menu:
Activation time -you can adjust if the headlights
swi tch on
Early , Medium or Late accor ding to t he
sens itivity of t he lig ht sen sor .
Headlight assistant * -you can switch the high
bea m assis tant* on and off.
Entry/exit lighting
When it is dark, the Ent ry /exit lighting ill umi­
nates the area a round the vehicle when unlocking
the veh icle and after switch ing off the ig nition
and opening the dr ive r's door .
The
Entry /e xit lighting only works when it is
dark and the light sw itch is in the
AUTO posit ion.
Daytime running lights
USA models :
the daytime r unning lights can be
switch ed on/off . S elect
On or Off.
Canada models: this f unction canno t be sw itched
off. They activate automatically each time the ig­
nit ion is switched on.
Emergency flashers
-- - ---
] -~ ~-
-------
Fig. SO Ce nter conso le: emerge ncy flashe r bu tt o n
The emergen cy fl ashe rs m akes ot her d rivers
aware of your veh icle in dangerous situations.
• Press the ~ b utton to switch the emergency
flashe rs on or off .
Yo u can indicate a la ne change or a turn when the
eme rgency flashers are switched o n by using the
turn s ignal leve r. T he eme rgency f lashe rs stop
tempor arily .
ll-