2020 AUDI A4 warning lights

8W1012721BB
Lights and Vision


Turn signal and high beam lever

BFV-0012


Fig. 42 Lever: switching on the turn signal and high beams
The lever operates the turn signals, the high
beams and the headlight flasher.
Turn signals 15>
The turn signal activates when you move the lev-
er into a turn signal position when the ignition is
switched on. The respective a or B indicator
light flashes.
@ Right turn signal
@® Left turn signal
The turn signal blinks three times if you tap the
lever (convenience turn signal).
If an indicator light blinks twice as fast as usual,
a turn signal bulb has failed. Carefully drive to an
authorized Audi dealer or authorized Audi Service
Facility immediately to have the malfunction cor-
rected.
High beams 20 and headlight flasher
> Move the lever to the corresponding position:
@) High beams on (vehicles with high beam assis-
tant*) > page 49
@ High beams off or headlight flasher
The
=o) indicator light in the instrument cluster
will turn on.

Z\ WARNING
High beams can cause glare for other drivers,
which increases the risk of an accident. For
this reason, only use the high beams or the
headlight flasher when they will not create
glare for other drivers.

teh m eu ielad
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 switch on or off automatically depending
on the position of vehicles driving ahead and on-
coming vehicles, the vehicle speed as well as oth-
er environmental factors and traffic conditions.
Switching on the high beam assistant
Requirement: the light switch must be in the AU-
TO position and the high beam assistant must be
switched on in the MMI > page 50.
> To activate the high beam assistant, tap the
lever forward @) > page 49, fig. 42. The FM in-
dicator light appears in the instrument cluster
display and the high beams are switched on or
off automatically. The Ea indicator light turns
on if the high beams are switched on.
Switching the high beams on or off manually
If the high beams did not switch on or off auto-
matically as expected, you may switch them on or
off manually instead:
> To switch the high beams on manually, tap the
lever
forward @) > page 49, fig. 42. The Ea in-
dicator light turns on.
> To switch the high beams off manually, pull the
lever back @) > page 49, fig. 42. The high beam
assistant is deactivated.
Operating the headlight flasher
> To operate the headlight flashers, pull the lever
back @) > page 49, fig. 42. If the high beam as-
sistant is activated, but the high beams were
not turned off, the high beam assistant remains
activated.

ZA WARNING
— Follow the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 114. >

49

8W1012721BB
Lights and Vision

0 - Deactivates all adjustment functions.
Q/ ®- Selects the left or right exterior mirror.
To adjust the mirror glass in a mirror, press the
knob in the desired direction.
GR - Heats the mirror glass depending on the out-
side temperature.
S) - Folds the exterior mirrors*. To fold the mir-
rors out, turn the knob to one of the other posi-
tions. In the MMI, you can select if the mirrors
fold in automatically when you lock the vehicle
> page 31.
Front passenger's exterior mirror tilt
function*
Requirement: the knob must be in the position
for the front passenger’s exterior mirror.
To help you see the curb when backing into a
parking space, the surface of the mirror will tilt
slightly when reverse gear is selected.
You can adjust the mirror surface by turning the
knob in the desired direction.
The mirror moves from the reversing position
back to the original position:
— When you switch the ignition off
— Once you drive forward at speeds faster than 9
mph (15 km/h)
— When the knob is no longer in the position for
the front passenger exterior mirror

Z\ WARNING
Curved mirror surfaces (for example convex)
enlarge the field of vision. However, they
make objects in the mirror appear smaller and
farther away. When using these mirrors to es-
timate your distance to vehicles behind you
when changing lanes, you could estimate in-
correctly, which increases the risk of an acci-
dent.

@) 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 could impair the function
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 the 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.
— Certain settings are automatically stored
and assigned to the active user.
Dimming the mirrors
Manual dimming rearview mirror
> Pull the lever on the bottom of the mirror back.
Automatic dimming rearview mirror*
> The interior and exterior mirrors* dim automat-
ically when light shines on them, for example
from headlights on a vehicle behind you.

Z\ WARNING
— If the glass on an automatic dimming mir-
ror* breaks, electrolyte can leak out. This
liquid can irritate the skin, eyes and respira-
tory system. If there is contact with the flu-
id, 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 >

53

8W1012721BB
Lights and Vision

Windshield wipers
Switching the windshield wipers on


[RAZ-0149




Fig. 51 Lever: rear window wiper (allroad)
> Move the windshield wiper lever \7 to the cor-
responding position:
© Windshield wipers off
@ Rain sensor/intermittent mode. The wind-
shield wipers switch on once the vehicle speed
exceeds approximately 2 mph (4 km/h) and it is
raining. The higher the sensitivity of the rain sen-
sor that is set (switch © to the right), the earlier
the windshield wipers react to moisture on the
windshield. You can deactivate the rain sensor
mode, which switches the interval mode on. In
intermittent mode, you can adjust the interval
time using the switch ©.
> Applies to: MMI: Select on the home screen:
VEHICLE > Light & Visibility > Rain sensor.
@® Slow wiping
@ Fast wiping
@ Single wipe. If you hold the lever in this posi-
tion longer, the wipers switch from slow wiping
to fast wiping.
© Clean the windshield @. The wipers wipe one
time after several seconds of driving to remove
water droplets. You can switch this function off
by moving the lever to position ©) within ten sec-
onds of the afterwipe. The afterwipe function is
reactivated the next time you switch the ignition
on.
Clean 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-
vals.
Applies to: vehicles with rear window wiper: @)
Wiping the rear window ]. The number of wipes
depends on the windshield 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: vehicles with rear window wiper:
Cleaning the rear window &. The number of
wipes depends on how long the lever is held in
position @).
This may also clean the rearview camera, depend-
ing on the vehicle equipment.

Z\ WARNING
—The rain sensor is only intended to assist the
driver. The driver may still be responsible for
manually switching the wipers on based on
visibility
conditions.
—The windshield must not be treated with
water-repelling windshield coating agents.
Under unfavorable conditions, such as wet-
ness, darkness, and when the sun is low,
these coatings can cause increased glare,
which increases the risk of an accident. They
can also cause wiper blade chatter.
— Properly functioning windshield wiper
blades are required for a clear view and safe
driving > page 56, Cleaning/changing wip-
er blades.
@) Note
— If there is frost, make sure the windshield
wiper blades are not frozen to the


55

Lights and Vision

windshield. Switching on the windshield
wipers when the blades are frozen to the
windshield can damage the wiper blades.
— Prior to using a car wash, the windshield
wiper system must be switched off (lever in
position @). This prevents the wipers from
switching on unintentionally and causing
damage to the windshield wiper system.
G) Tips
— The windshield wipers switch off when the
ignition is switched off. You can activate the
windshield wipers after the ignition is
switched on again by moving the windshield
wiper lever to any position. The single wipe
function (lever in position @) also functions
when the ignition is switched off.
— Worn or dirty windshield wiper blades result
in streaking. This can affect the rain sensor
function. Check your windshield wiper
blades regularly.
— The washer fluid nozzles for the windshield
washer system are heated when the ignition
is on if the outside temperature is low.
— When stopping temporarily, such as at a
traffic light, the speed of the windshield
wipers automatically reduces by one level.
— Certain settings are automatically stored
and assigned to the active user.
[eG cena es ct wiper blades

B8V-0696|
Ae

Fig. 52 Windshield wipers: changing the wiper blades
Windshield wiper service position/blade
replacement position
> Switch off the ignition and hold the windshield
wiper lever in position @) > page 55, fig. 50 un-
56
til the windshield wiper moves into the service
position.
> To bring the windshield wipers back to the nor-
mal position, switch the ignition on and hold
the windshield wiper lever in position @) until
the windshield wipers go back to the normal
position, or drive faster than 8 mph (12 km/h).
You can also turn the service position on or off in
the MMI:
> Switch the windshield wipers off (position @
=> page 55, fig. 50).
> Applies to: MMI: Select on the home screen:
VEHICLE > Settings & Service > Service posi-
tion.
Cleaning the wiper blades
Requirement: the windshield wipers must be in
the service position.
> Fold the windshield wiper arm away from the
windshield.
> For information on cleaning, see > table on
page 248.
Replacing the wiper blades
Requirement: the windshield wipers must be in
the service position.
> Fold the windshield wiper arm away from the
windshield.
> Press the locking knob () on the wiper blade.
Hold the wiper blade firmly.
> Remove the wiper blade from the windshield
wiper arm mount Q).
> Insert the new wiper blade into the mount on
the wiper arm until it clicks into place.
> Place the wiper arm back on the windshield.
> Exit the service position.

ZA\ WARNING
— For safety reasons, the windshield wiper
blades should be replaced once or twice
each year.
— Dirty windshield wiper blades can impair vi-

sion, which increases the risk of an accident. |>

8W1012721BB
Lights and Vision

@) Note
— The windshield wipers must only be folded
up when in the service position! Otherwise,
you risk damaging the paint on the hood or
the windshield wiper motor.
— You should not move your vehicle or press
the windshield wiper lever when the wiper
arms are folded up from the windshield. The
windshield wipers would move back into
their original position and could damage the
hood and windshield.
@ 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.

Cleaning/ch g rear wiper blade
Applies to: vehicles with rear window wiper
B8R-0380


Fig. 53 Rear window wiper: installing the wiper blade
Cleaning the wiper blades
> Fold the wiper arm away from the rear window.
> For information on cleaning, see > table on
page 248.
Removing the wiper blade
> Fold the wiper 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.

ZX WARNING
For safety reasons, the windshield wiper
blades should be replaced once or twice each
year.
Messages
If the > indicator light turns on, then there is a
windshield wiper malfunction. The displayed
message indicates the cause and possible solu-
tions. If one of the messages does not turn off,
drive immediately to an authorized Audi dealer or
authorized Audi Service Facility to have the mal-
function repaired.

a Automatic wipers: malfunction! See owner's
manual
The light/rain sensor is malfunctioning. You can
still control all functions that are independent of
the rain sensor through the windshield wiper lev-
er. Drive immediately to an authorized Audi deal-
er or authorized Audi Service Facility to have the
malfunction repaired.
Digital compass
Sialic ma meelil eel mela
Applies to: vehicles with digital compass

BFV-0288


Fig. 54 Rearview mirror: digital compass is switched on
> To turn the compass on or off, press the button
@ until the compass display in the mirror turns
on or off.
The digital 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).
57

Sitting correctly and safely

— Your thighs are lightly supported by the front
surface of the seat
— The backrest is in an upright position and your
back is resting against it
— You have a sufficient view of the area around
the vehicle
— You have a clear view of the instrument cluster,
indicator lights, and the head-up display*

ZA WARNING
— If you are too close to the steering wheel or
instrument panel, the airbag system cannot
provide the optimal protection, which in-
creases the risk of injury and death.
— To reduce the risk of injury in the event of
sudden braking maneuvers or accidents,
never drive with the backrest reclined very
far. The airbag system and seat belts can on-
ly provide optimal protection when the back-
rest is in an upright position and the driver
is wearing the seat belt correctly. If the
backrest is angled back too far, the safety
belt can shift to soft areas of the body, such
as the stomach, which increases the risk of
injury.
—To reduce the risk of an accident, only adjust
the seats when the vehicle is stationary.
— Be careful when adjusting the seat. Lack of
control or attention when adjusting can re-
sult in injuries due to pinching to vehicle oc-
cupants both in the front seats and rear
seats.
— Never place objects in the driver's footwell.
Objects could shift and enter the area
around the pedals, which could prevent you
from using them. You would then be unable
to use the pedals if sudden driving or brak-
ing maneuvers were needed, which increas-
es the risk of an accident.
— Make sure that the floor mats are always se-
curely attached.
— To reduce the risk of an accident, never place
additional floor mats or other floor covers
over the installed floor mats, because this
reduces the pedal's range of motion and can
impair pedal operation.
—To reduce the risk of injury, never place your
feet on the instrument panel, out of the

60

window, or on the seat surfaces. This also
applies to passengers in the rear seats.
@) Note
Applies to: vehicles with manually adjustable head re-
straints

To reduce the risk of damage, be very careful
when adjusting the seat to make sure the
head restraints do not hit the headliner or the
panorama glass roof*.
oN eet Lar feet ana)







Fig. 57 Front seat: adjusting the seat (version B)
The settings depend on the vehicle equipment.
Adjusting the seat position
> To adjust the seat forward or backward, push
the button @) forward or backward.
> To adjust the seat upward or downward, push
the rear section of the button @) upward or
downward.
> To adjust the seat surface, press the front part
of the button @) upward or downward.
Adjusting the backrests
> To adjust the backrest forward or backward,
press the button @ forward or backward. >

Driving

@) Note
— Never let the brakes “rub” by pressing the
pedal lightly when braking is not actually
necessary. This can cause the brakes to over-
heat and increases braking distance and
causes wear.
— Observe the important information for driv-
ing downhill > page 104. This especially ap-
plies when towing a trailer.
@ Tips
— If you retrofit your vehicle with a front spoil-
er, wheel covers or similar items, make sure
that the air flow to the brakes is not ob-
structed. Otherwise the brake system can
overheat.
— Also refer to the information about brake
fluid > page 222.
WEEE Tel
GG 7 @ Brakes: malfunction! Safely stop ve-
hicle
There is a malfunction in the brake system. If
fs) and also turn on, there is a malfunc-
tion in the ABS, ESC, and braking distribution.
Do not continue driving. See an authorized Audi
dealer or authorized Audi Service Facility for as-
sistance. Read and follow the other safety pre-
cautions > A.
Gia / © Warning! No brake booster function
If the brake booster is not working, you have to
use much more force when braking the vehicle.
See an authorized Audi dealer or authorized Audi
Service Facility for assistance.
fia i 1] Brake pads: wear limit reached. You
can continue driving. Please contact Service
The brake pads are worn. Drive to an authorized
Audi dealer or authorized Audi Service Facility as
soon as possible to have the malfunction correct-
ed.
Brake booster: limited functionality.You can
continue driving. Please contact Service
102
There is a brake booster malfunction. The brake
booster is available, but its effectiveness is re-
duced. The braking performance may be different
compared to the usual performance. Drive to an
authorized Audi dealer or authorized Audi Service
Facility immediately to have the malfunction cor-
rected.
Brake booster: deactivated. See owner's manual
The brake booster remains active for a brief peri-
od of time after switching off the ignition. Secure
the vehicle from rolling by selecting “P” and set-
ting the parking brake.
Other indicator lights
When you switch the ignition on, the indicator
light EG if @® turns on briefly to check the
function. If the indicator light does not turn on,
there is a system malfunction.
iff / stays on, there is a malfunction in
the brake system.
@® - There was a heavy load on the brakes. Fol-
low the instructions in the message to utilize the
engine braking effect and to relieve the brakes.

ZA, WARNING
If a malfunction occurs in the ABS, ESC, and
braking distribution, interventions that stabi-
lize the vehicle will no longer be available.
This could cause the vehicle to swerve, which
increases the risk that the vehicle will slide.
Do not continue driving. See an authorized
Audi dealer or authorized Audi Service Facility
for assistance.

Electromechanical
parking brake
Operating the parking brake
The electromechanical parking brake is used to
secure the vehicle from rolling away unintention-
ally.
The ©) switch is located under the selector lever
in the center console. It turns on when the park-
ing brake is set. You can release the parking brake >

8W1012721BB
Driving

@ For the sake of the environment
Avoid actions that are damaging to the envi-
ronment. Show respect for the natural envi-
ronment and remain on marked routes.
@ Tips
Clean your vehicle after driving offroad. Dirt
and stones falling off your vehicle can affect
other road users.
Driving through water
If you must drive through water, follow these in-
structions:
— Check the stability of the ground, the current,
and the water depth. If the ground is unstable,
there is a strong current, or there are waves,
the water must only reach up to the lower edge
of the body at the most.
— Deactivate the Start/Stop system*.
— Drive carefully and no faster than at walking
speeds to prevent the front of the vehicle from
creating waves, because they could splash
above the lower edge of the body. Oncoming
vehicles could also create waves.
— Do not stop the vehicle while in the water.
— Drive in reverse.
— Do not turn the engine off.
Hill descent assist
Applies to: vehicles with hill hold assist
The “2 button is located above the selector lever
in the center console. It lights up when the sys-
tem is turned on.
Hill descent assist can assist you when driving
down hills by maintaining a constant vehicle
speed by automatically braking all four wheels.
You can adjust the speed using the accelerator
and brake pedals. The regulation depends on the
hill and the vehicle speed.
> Switching on: press a
> Switching off: press “2 again.
Active regulation
Regulation begins shortly after you start driving
and is possible at speeds up to approximately 19
mph (30 km/h) and on hills that have an approxi-
mately 6-60% grade. If these conditions are met,
regulation will be activated and the indicator
light will turn on.
Ready mode
If one of the requirements for active regulation is
not met, the system will be in ready mode. The
a indicator light will turn on. Once the require-
ments are met again, the system will be able to
provide active regulation again.

ZA WARNING
After driving through water, press the brake
pedal carefully to dry the brakes so that the
full braking effect will be restored.
@) Note
Vehicle components such as the engine, drive
system, suspension, or electrical system can
be severely damaged by driving through wa-
ter.
@ Tips
If possible, avoid driving through salt water
because it increases the risk of corrosion. Use
fresh water to clean any vehicle components
that come into contact with salt water.

ZA WARNING
— Be ready to apply the brakes at all times
when using the hill hold assist.
— Always adjust the speed to the visibility,
weather, road, and traffic conditions. The
system cannot replace the driver's atten-
tion.
— The system cannot maintain a constant vehi-
cle speed in all situations, for example when
on smooth or slippery ground. This can in-
crease the risk of an accident.
G) Tips
If you select the Audi drive select* Offroad
mode, hill descent assist will switch on.

105