2020 AUDI A4 sensor

Quick access













Electromechanical parking brake
=> page 103
Steering
=> page 107
Steering lock
=> page 107
Brake system
=> page 102
Electronic Stabilization Control
(ESC)
=> page 109
Electronic Stabilization Control
(ESC)
=> page 109
Air suspension
=> page 107
Electrical system
=> page 222
Engine oil level (MIN)
=>page 217
Electronic Stabilization Control
(ESC)
=>page 110
Anti-lock braking system (ABS)
=>page 110
Anti-lock braking system (ABS)
=>page 110
Engine oil pressure
=> page 217
Cooling system
=> page 220
Hood
=>page 215
Distance warning
Steering lock
=> page 136
=> page 107
All wheel drive
=> page 108
Safe start monitor
=> page 132,
Driver intervention request
=> page 133 Suspension control
>
Active lane assist page 107
=> page 137 Air suspension
> 107
Steering intervention request L page
=>page 135
Audi pre sense
=> page 140
Yellow indicator lights
Engine speed limitation
=> page 13
Tank system
=> page 211
Electrical system
=> page 222
Engine oil level (MIN)
=>page 217
Engine oil level (MAX)
=>page 217
Central indicator light
=> page 7
Safety systems
=> page 68
Transmission
> page 97 Engine oil sensor
=> page 217
Malfunction Indicator Lamp (MIL)
=> page 213
Washer fluid level
=> page 226
Drive system
=> page 99
Engine start system
=> page 93
Keys
=> page 93

Engine warm-up request
=> page 217

8W1012721BB
Quick access



Windshield wipers
=> page 57
Parking aid plus
=> page 148
Park assist
=> page 157
Rear cross-traffic assist
=>page 152
Tire pressure
=> page 245
Tire pressure
=>page 245
Bulb failure indicator
=> page 50
Adaptive light
=> page 50
Light/rain sensor
=> page 50, > page 57
Door lock
=> page 32
Battery in vehicle key
=> page 36
Distance warning
=> page 136
Side assist
=> page 145;
Exit warning
=>page 145
Audi adaptive cruise control
=> page 134,
Traffic jam assist
=> page 134
Steering intervention request
=> page 135, > page 138
Audi active lane assist
=> page 139
Audi pre sense
=> page 143
Emergency call function
=>page 175

Other indicator lights
Start/Stop system
=> page 99
Turn signals
= page 49
Low beam headlight
=> page 48
Parking light
=> page 48
Cruise control system
=> page 123
Cruise control system
=> page 123
Efficiency assist
=> page 124
Efficiency assist
=>page 124
Efficiency assist
=>page 124
Efficiency assist
=>page 124
Efficiency assist
>page 124
Efficiency assist
=>page 124
Audi adaptive cruise control
> page 128
Audi adaptive cruise control
=> page 128
Audi adaptive cruise control
=>page 128
Audi adaptive cruise control
=> page 128
Audi adaptive cruise control
=>page 128
Traffic jam assist
=> page 134
High beams
=>page 49
High beam assistant
=> page 49

Opening and closing

Opening and closing
Central locking
erasure)
ZA WARNING
— If you leave the vehicle, switch the ignition
off and take the key with you. This applies
particularly when children remain in the ve-
hicle. Otherwise, children could start the ve-
hicle or operate electrical equipment (such
as power windows), which increases the risk
of an accident.

— Applies to: vehicles with anti-theft alarm
system: When the vehicle is locked from the
outside, no one - especially children - should
remain in the vehicle, because the windows
can no longer be opened from the inside
=> page 33, Anti-theft alarm system.
Locked doors make it more difficult for
emergency workers to enter the vehicle,
which puts lives at risk.
All doors and the luggage compartment lid can
be centrally unlocked and locked at once. You can
select in the MMI if the entire vehicle or only the
driver's door should unlock when unlocking the
vehicle > page 31. The turn signals flash twice
when you unlock the vehicle and flash once when
you lock the vehicle. If they do not flash when
locking, check if all doors and lids are closed.

Depending on the vehicle equipment, you may
have different options for centrally unlocking and
locking your vehicle.
— Vehicle key > page 35
— Sensors in the door handles > page 35
— Lock cylinder on the driver's door > page 32
— Central locking switch inside > page 32
Vehicle key
The term “vehicle key” refers to the remote con-
trol key or convenience key*. The convenience
key* is a remote control key with special func-
tions > page 35 and > page 92.
30
Automatic locking
If you unlock the vehicle but then do not open
any of the doors, the luggage compartment, or
the hood within a short period time, the vehicle
locks again automatically. This feature prevents
the vehicle from being accidentally left unlocked
for a long period of time.
Automatic locking (Auto Lock)
The Auto Lock function locks all doors and the
luggage compartment lid once the speed has ex-
ceeded approximately 9 mph (15 km/h). The ve-
hicle will unlock again if the unlock function in
the central locking switch is pressed, the “P” gear
is engaged, or the ignition is switched off.
You can open the doors individually from the in-
side by pulling the door handle one time. To open
the rear doors individually, you must pull the
door handle twice.
In the event of a crash with airbag deployment,
the doors will also automatically unlock to allow
access to the vehicle.
Unintentionally locking yourself out
Only lock your vehicle when all of the doors and
the luggage compartment lid are closed and
there is no key in the vehicle. This reduces the
risk of locking yourself out accidentally.
The
following features help to reduce the risk of
locking your vehicle key in the vehicle:
— If the driver's door is open, the vehicle cannot
be locked by pressing the & button on the re-
mote control key or by touching the locking
sensor* on a door.
— If the vehicle key that was used most recently is
inside the luggage compartment, the luggage
compartment lid will automatically open again
after it closes >@.
— If the vehicle key that was last used is detected
inside the vehicle, then the vehicle cannot be
locked from the outside > ©.

Z\ WARNING
Follow the safety precautions > page 30. >

Opening and closing

8W1012721BB
@) Note Tati ma Reciee lela aate Rest)
The following applies when locking the vehi- You can adjust the central locking system to your
cle: preferences. The settings depend on the vehicle
— If the vehicle key that was last used is de- equipment.
tected inside the passenger compartment,
then the vehicle cannot be locked from the
outside using the sensor. Take the vehicle
key with you and lock the vehicle again. Oth-
erwise, the vehicle will not be protected Door unlocking
against unauthorized access.
— If you try to lock the vehicle using the but-
ton on the vehicle key while the front pas-
senger's or rear door is open, and you acci-
dentally place the key inside the passenger
compartment and close the door, the vehi-
cle will lock at first. But if the keyless sys-
tem detects a vehicle key inside the vehicle
after it locks, then the vehicle will unlock
again. The turn signals will flash several
times to indicate this. If you do not open
the vehicle to remove the vehicle key within
a brief period, then the vehicle will lock au- The entire vehicle will always be locked when you
tomatically. This prevents the vehicle from press the f@ button.
being left unlocked for long periods of time.
The key will then be locked inside the vehi-
> Applies to: MMI: Select on the home screen:
VEHICLE > Settings & Service > Central lock-
ing.
—If you select All, all doors and the luggage
compartment lid will be unlocked when unlock-
ing the vehicle.
— If you select Driver's door, only the driver's
door will be unlocked. To unlock all doors and
the luggage compartment lid, press the & but-
ton on the vehicle key twice. In vehicles with a
convenience key*, only the driver's door will un-
lock when you pull the driver's door handle. If
you pull another door handle, the entire vehicle
will be unlocked.
Long press to open windows
cle. You can select if all windows and the panoramic
— If the luggage compartment lid closes and glass roof* should open using the vehicle key
the system detects that the last vehicle key > page 42, Convenience opening and closing. If
that was used is inside the luggage com- you press and hold the & button on the vehicle
partment, then the luggage compartment key, all of the windows and the panoramic glass
lid will open again. The turn signals will roof* will close.
flash several times to indicate this. The
. . Disable rear lid handle
doors will lock. Always take the vehicle key
with you, or unauthorized persons may be You can select if the luggage compartment lid
able to enter the vehicle. can open with the handle. If you activate this
function, the luggage compartment lid can only
@ Tips be opened with the <3 or 4s button on the vehi-
cle key or in the driver's door. In vehicles with a
convenience key*, you can still open the luggage
compartment lid using the handle if an author-
ized convenience key is detected > page 36.
— Do not leave valuables unattended in the ve-
hicle. A locked vehicle is not a safe!
—The LED in the driver's door rail blinks when
you lock the vehicle. If the LED turns on for
approximately 30 seconds after locking, Fold mirrors
there is a malfunction in the central locking
system. Have the problem corrected by an
authorized Audi dealer or authorized Audi
Service Facility.
You can select if the exterior mirrors automatical-
ly fold in when locking. >
31

Opening and closing

Tone when locking)
You can select if an audio signal sounds when
locking the vehicle.
Open with convenience key
Applies to: vehicles with convenience key
You can deactivate the feature for unlocking us-
ing
the sensor. The function for locking via the
sensor will still be enabled > page 35.
@) Tips
The settings are automatically stored and as-
signed to the active personal profile.
Cette] mole aire muda)

B8W-0058
:

Fig. 23 Driver's door: central locking switch
> To lock or unlock the vehicle, press the @ or B
button > /\.
When locking the vehicle with the central locking
switch, the following applies:
— The doors and the luggage compartment lid
cannot be opened from the outside for security
reasons, for example, to reduce the risk of un-
authorized entry while stopped at a light.
— The LED in the central locking switch turns on
when all doors are closed and locked.
— You can open the doors individually from the in-
side by pulling the door handle one time. To
open the rear doors individually, you must pull
the door handle twice.
— In the event of a crash with airbag deployment,
the doors unlock automatically to allow access
to the vehicle.

D This function is not available in all countries.
32

ZA WARNING
- Follow the safety precautions > page 30.
— The central locking button works when the
ignition is switched off.
—The central locking switch is inoperative
when the vehicle is locked from the outside.
Automatic transmission: B&B Driver's door: mal-
function! Shift to P before leaving vehicle. See
owner's manual

There is a malfunction in the driver's door. Secure
the vehicle before exiting by selecting the “P” se-
lector lever position. Drive immediately to an au-
thorized Audi dealer or authorized Audi Service
Facility to have the malfunction repaired.
Mechanic ELAN Cle date Race m Cole diile mal


doors
If the central locking fails, you must unlock or
lock the doors separately.

“SS
Baw-0149

BFV-0242

Fig. 25 Door: mechanically locking

8W1012721BB
Opening and closing

Unlocking and locking the driver's door with
the mechanical key
> Remove the mechanical key > page 34.
> To unlock the driver's door, turn the key to the
unlock position @) > fig. 24.
> To lock the driver's door, select the "P" position
(automatic transmission) and turn the key once
to the closing position (8)> page 30, General
information.
Locking the front passenger's door or rear
doors with the mechanical key
The
mechanical lock is located on the edge of the
front passenger's door and the rear doors. It is
only visible when the door is open.
> Remove the mechanical key > page 34.
> Remove the cap from the opening > fig. 25.
> Insert the key in the inside slot and turn it all
the way to the right (right door) or left (left
door).
Once the front passenger’s door or rear doors
close, it will no longer be possible to open them
from the outside. The door can be unlocked from
the inside by pulling on the door handle one time
and then opened by pulling the door handle
again. If the child safety lock in one of the rear
doors is activated, you must first pull the door
handle from the inside. Then you can open the
door from the outside.

ZA WARNING
Follow the safety precautions > page 30.


Naa
Applies to: vehicles with anti-theft alarm system
If the anti-theft alarm system detects a vehicle
break-in, audio and visual warning signals are
triggered. The anti-theft alarm system is switch-
ed on or off when locking or unlocking your vehi-
cle. If the alarm is triggered, it will shut off auto-
matically after a certain amount of time.
Switching the alarm off manually
> To switch the alarm off, press the G button on
the vehicle key or switch the ignition on.
Depending on the vehicle equipment, the anti-
theft alarm system may have the following fea-
tures:
Break-in security feature
The alarm will sound if there is a break-in at the
doors, hood, and/or luggage compartment lid.
Interior/towing protection monitor
The alarm will be triggered if there are move-
ments detected in the vehicle interior (for exam-
ple, by animals) or if there is a change in the vehi-
cle angle (for example, when the vehicle is being
towed).
You can prevent the alarm from being triggered
by deactivating the interior/towing protection
monitor.
Deactivating the interior/towing protection
monitor
There are the following options for deactivating
the interior/towing protection monitor:
> Press the ff button on the vehicle key a second
time within two seconds. Or
» Applies to: vehicles with convenience key:
Touch the sensor on the door handle a second
time within two seconds. Or
> Turn the mechanical key in the door lock to the
close position a second time within two sec-
onds.
> Applies to: vehicles with MMI: Select on the
home screen: VEHICLE > Settings & Service >
Interior monitoring
If you lock the vehicle, then the interior/towing
protection monitor will stay off until the next
time the vehicle is unlocked.

ZA\ WARNING
No one, especially children, should stay in the
vehicle when it is locked from the outside, be-
cause the windows can no longer be opened
from the inside. Locked doors make it more
difficult for emergency workers to enter the

vehicle, which puts lives at risk. >

33

8W1012721BB
Opening and closing

authorized Audi Service Facility for more in-
formation.
@ Tips
— The vehicle key function can be temporarily
disrupted by interference from transmitters
near the vehicle working in the same fre-
quency range (such as a mobile device or ra-
dio equipment). Always check if your vehicle
is locked.
— Applies to: MMI: You can view the number
of keys programmed to the vehicle by se-
lecting on the home screen: VEHICLE > Set-
tings & Service > Vehicle information.
— For an explanation on conformity with the
FCC regulations in the United States and the
Industry Canada regulations, see
=>page 275.
Unlocking and locking the vehicle
> To lock the vehicle, close the doors and touch
the outer sensor on the door handle once
=> fig. 27. Do not grasp the door handle while
locking the vehicle, or else the vehicle will not
lock. The door cannot be opened for a brief pe-
riod directly after locking it. This way you have
the opportunity to check if the doors locked
correctly.

Z\ WARNING
Follow the safety precautions > page 30.


B8W-0148


Fig. 27 Door handle: sensor for locking
You can unlock and lock your vehicle using either
the buttons on the vehicle key or using the sen-
sors* in the door handles. The settings in the
MMI specify which doors will unlock > page 31.
Unlocking or locking using the vehicle key
buttons
> To unlock the vehicle, press the G@ button
=> page 34, fig. 26.
> To lock the vehicle, press the & button once.
Unlocking or locking using the sensors
Applies to: vehicles with convenience key
> To unlock a door or the luggage compartment
lid, grasp the door handle or luggage compart-
ment lid handle.
G) Tips
— Only use the vehicle key when you can see
the vehicle.
— The vehicle can only be locked when the "P”
selector lever position is engaged.
— Do not use the vehicle key to lock and un-
lock when you are inside the vehicle. Other-
wise, you could trigger the anti-theft
alarm*. If this happens, press the @ unlock
button.
G@) Tips
Applies to: vehicles with convenience key
— When unlocking or locking the vehicle, the
convenience key cannot be more than ap-
proximately 4 feet (1.5 m) away from the
door handle or luggage compartment.
— Unlocking with the convenience key (keyless
access) can be deactivated in the MMI sys-
tem > page 31.
—To prevent the vehicle battery from dis-
charging, the energy management gradual-
ly switches off convenience functions that
are not needed. You then may no longer be
able to unlock your vehicle with the sensors.
35

8W1012721BB
Opening and closing



from the surrounding area can enter the ve-
hicle interior and increase the risk of asphyx-
iation.
— If there is a luggage rack (such as a bicycle
rack) on the luggage compartment lid, the
luggage compartment lid may not open
completely under certain circumstances or it
could close by itself if open due to the extra
weight. Therefore, the open luggage com-
partment lid must be given additional sup-
port or the cargo must first be removed
from the luggage rack.
— Applies to: vehicles with power-operated or
sensor-controlled luggage compartment lid:
Pay careful attention when closing the lug-
gage compartment lid. Otherwise, you could
cause serious injury to yourself or others de-
spite the pinch protection.


@) Note
The luggage compartment lid can bump into
objects such as the garage ceiling when open-
ing and become damaged.
@ Tips
— When the vehicle is locked, the luggage
compartment lid can be unlocked separately
by pressing the &s button on the vehicle key
twice. The luggage compartment lid locks
automatically when it is closed again.
— The ability to open the luggage compart-
ment lid using the handle can be deactivat-
ed or activated in the MMI > page 31.
— Applies to: vehicles with fixed rear backr-
ests: The luggage compartment lid can be
unlocked from the inside in an emergency
=>page 41.
Opening and closing
compartm (|
luggage
oe 3 Ss
a =
z a
Fig. 30 Driver's door: opening the luggage compartment
lid
Opening the luggage compartment lid
> When the ignition is switched off, press the 4s
button on the vehicle key twice. Or
> Select the “P” selector lever position and pull
the <3 switch in the driver's door. Or
> Applies to: vehicles without convenience key:
Unlock the vehicle using the @ / 4s button on
the vehicle key and press the handle in the lug-
gage compartment lid. Or
> Applies to: vehicles with convenience key: Press
the handle in the luggage compartment lid.
The vehicle key cannot be more than approxi-
mately 4 feet (1.5 m) away from the luggage
compartment.
Closing the luggage compartment lid
> Applies to: vehicles without automatic luggage
compartment lid: Use the inside grip to pull the
luggage compartment lid down and allow it to
drop gently to close it. Or
> Applies to: vehicles with automatic luggage
compartment lid: Note > page 38.

ZA WARNING
Follow the safety precautions > page 36.

37