2018 AUDI A4 Control

Cockpit over view
Red indicator ligh ts
26
--------------
Central indicator light
¢page 25,
Aud i pre sense*
¢ page 120
USA model s:
Brake system ./
¢page28
Cana da m od els:
Brake system ./
¢ page28
USA models :
Electromechan ical parking brake
¢ page29
Canada models:
Electromechan ica l parking brake
¢page29
Cooling system
¢ page30
Engine oil pressure
¢ page 31
E ngine oil level
¢ page 31
Alter nator
¢ page30
Safety belt
¢page30
Electromechan ica l steering ./
¢page 150
Steering lock
¢ page 31
Engine start system
¢ page 31
Transmiss ion (automatic t ransm is ­
sion)
¢ page 96,
Clutch (manual transmission)
¢page32
Hood
¢ page32
Adapt ive cr uise control*./
¢ page 110
Traffic jam assist*
¢ page 116 Ad B
lue*
¢ page 319
Ad Bl ue*
¢ pag e 319
Yellow indi cator lights
--------------
Central indicator light
¢ page25
Electronic Stabi lization Control
( E SC)
¢ page32
Elec tronic Stab il izat io n Contro l
(ESC)
./
¢ page32
Electronic Stab ilizat ion Control
(ESC)
¢ page 147
Brake system
¢ page 33
USA models:
Ant i- lock braking system (ABS)./
¢ page32
Canad a model s:
Ant i-lock b raking system (ABS) ./
¢ page32
Safety systems ./
¢page32
USA mode ls:
Brake pads
¢ page33
Ca nad a model s:
Brake pads
¢ page 33
E lec tromechanical parking brake
¢ page29
Tire p ressure
¢ page352
Tire pressure
¢page 352
Engine contro l
¢page 33
Engine contro l (diesel engine)
¢ page 33

a co .... N ,....
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3 co
'
-Yli-, I '
Malfunct ion Indicato r Lamp (MIL)
,/
¢page 33
Diese l part icu late filter*
¢page33
Eng ine speed limitat ion
¢page34
Eng ine oil level (MIN)
¢ page 31
Eng ine oil level ( MAX)
¢ page 327
Eng ine oi l sensor
¢ page34
Eng ine warm-up request
¢ page34
Battery charge
¢page 30
Tank system
¢page34
Washer fluid level
¢page34
W indshield w ipers
¢page34
Remote control key
¢ page83
Driver's door
¢page35
Battery in remote cont rol key
¢ page39
Bulb failure ind icator
¢ page 35
Headlight range control system
¢ page 35
Adapt ive light*
¢ page35
Light/rain sensor
¢page35
Active lane ass ist*
¢page 126
Audi side assist*
¢ pag e 133
AdBlue0
0
Coc kpit o ve rv iew
Audi pre s ense *
¢page 124
Parking aid*
¢page 144
Transmission (automatic transmis­
s ion)
¢ page 96,
Clutch (manual transmission)
¢page 32
Steering lock
¢ page 31
Engine sta rt system
¢page 31
Electrome chanical steering
¢ page 150
Suspension control*
¢page 35
All wheel drive/sport differential*
¢page35
Emergency call funct ion*
¢ page 203
Ad Blue *
¢page 319
Ad B lue*
¢ page 319
Other indicator light s
--------------
Turn signals
¢ page 36
USA models :
Cruise cont rol sys tem*
¢ page 102
Canad a model s:
Cru ise control system*
¢ page 102
Adaptive c ruise contro l*
¢ page 110
Adaptive c ruise contro l*
¢ page 110
Adaptive c ruise contro l*
¢ page 110
Ad aptive c ruise contro l*
¢ page 110
27

Cockpit over view
28
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1:1
y>))
Adapt ive cruise control*
¢ page 112, ¢page 115
Adapt ive cruise control*
¢ page 115
Traffic jam assist*
¢page 116
Active lane assist*
¢page 126
Predictive efficiency assist*
¢page 107
USA model s:
Predictive efficiency assist*
¢page 107
Canada mod els:
P redictive efficiency assist*
¢ page 107
Predictive efficiency assist*
¢page 107
Predictive efficiency assist*
¢page 107
Predictive efficiency assist*
E!)page 107
Hill descent assist*
¢page 148
Start/S top system *
¢page85
Start/Stop system*
¢ page 85
Remote cont rol key
¢ page85
Ad B lue *
¢page319
Automatic transm ission*
¢ page96
Dynamic steering"
¢page 150
Adapt ive cr uise control*
¢ page 112,
Traffic jam assist*
¢ page 118
Traffic jam assist *
¢page 118
D AUTO
Audi pre sense *
¢page 124
USA models:
Electromechanical parking brake
¢ page 29
Canad a models:
Electromechanical parking brake
¢ page29
Hill descent assist*
¢page 148
Child safety lock
¢ page48
USA models:
Speed warning system*
¢ page 102
Canada model s:
Speed warning system*
¢ page 102
Active lane assis t*
¢ page 126
Audi s ide assist*
¢ page 133
Camera-based traff ic sign recog ni­
tion*
High beam ass istant*
¢ page 55
High beams
¢ page 55,
High beam ass istant*
¢ page 55
BRAKE /CCD) Brake system
If this indicato r light turns on, t here is a malf unc­
t ion in the b rake system .
1111 (USA model s) /. (Canada model s)
Brakes : stop vehicle and chec k brake fluid level
Stop the vehicle and check the brake flu id leve l.
See an author ized Audi dealer or authorized Audi
Service Facility for assis tance if necessary .
1111 (USA models ) /. (Can ada model s)
Brakes : malfunction! Stop veh icle safely
..,.

Cockpit over view
Drive to an autho rized Audi dea ler or a uthorized
Audi Service Facility immediately to have the
malfunct ion corrected.
c::=:,Hood
• Warning! Hood is not locked. Stop vehicle
and check the lo ck
If the indicator light turns on and the m essage
appears, the hood locking mechanism is not en­
gaged correctly.
Stop immediate ly and close the hood
<::> page 324.
0 Clutch
Appl ies to: ve hicles w ith manu al transmiss ion
• C lutch: malfun ction! Safely stop vehicle
There is an ongoing ma lfunction in t he clutch .
Stop the vehicle safely. See an authorized Audi
dea ler or a uthori zed Audi Serv ice Facility for as ­
sistance .
[Pl Clut <:h: malf un<:ti on! Adapt dri ving style .
Please contact Ser vice
There is an ongo ing malfu nction in the clutc h.
The engine torque tha t can be transferred is re­
duced . You may continue d riving . Avoid using the
clutch in any way that will p lace a heavy load on
it . For example, do not let the clutch r ub when
starting on hills, when towing a trailer or when
maneuvering the vehicle. Drive to an authori zed
Aud i dealer or authorized Aud i Serv ice Facility im ­
mediately to have the malfunc tion corrected .
5] Clutch: malfun ction! You ma y continue d riv­
ing
There is a malfunction in the clutch. The engine
torque that can be transferred is reduced. Yo u
may continue driving. Avoid using the clutch in
the future in any way that will p lace a heavy load
on it. For examp le, do not let the clutch rub when
starting on hills, when tow ing a trailer or when
maneuvering the vehicle . The indicato r light
tur ns off once the clutc h is fully operable again.
32
!;.J [/; Electronic Stabilization Control (ESC)
If the bJ indicator light blinks while driving , the
E SC o r ASR (A nti-Sl ip Regulation) is act ively regu­
l ating .
If the
bJ ind icator light turns on, the system has
switched the ESC off. In t his case, you can switch
t h e ign it io n off and then on to swi tch the ESC on
again. The indicator light t urns off when the sys­
tem is functioning fu lly.
If
the . indicator light turns on, ESC was
swi tched off using the
l.a00I button<::> page 146.
Stabi liz ation contro l (ESC /ABS ): malfunction !
See owner's manual
If the G1 ind icator light and the ~ (USA mod­
els),11J (Canada models) ABS indicator light turn
o n and the message appears, there is a malfunc­
tion in the ABS o r the e lectronic diffe rentia l lock .
This also causes the ESC to malfunction. The
br akes st ill func tion wi th the ir normal power, bu t
ABS is not active .
D rive to an authorized A udi dealer or authorized
Audi Se rvice Fa cil ity immed iate ly to have the
malfunction cor rec ted .
(D Tips
For addi tional informat ion on ESC and ABS,
see <::>
page 146 .
!I..' Safety systems
The fll indicator lig ht mon itors the safe ty sys­
tems.
If the
fll ind icator light turns on or blinks, the re
i s a ma lfunction in a safety system.
Drive to an author ized Audi dealer or authorized
Audi Se rvice Fac ility immed iate ly to have the
malfunction cor rected .
_&, WARNING
Have the safety sys tems inspec ted immedi­
a tely . O therwise, the re is a ris k t hat the sys­
tems may not activate during a collision,
which increases the risk of serious injury or
death .

a co .... N ,....
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C© ) Brake system
rm Brakes overheating . Please shift to D
rm Brakes overheating. Please select a gear and
follow gear recommendation
There was a heavy load on the brakes. Engage a
suitable gear (manual transm ission) or place the
selector lever in the D/S position (automat ic
transmission) to use the eng ine braking effect
and reduce the load on the brakes.
~·
:t:J /(0 : Brake pads
II (USA models)/£i1 (Canada models) Brake
pads: wear limit reached. You can continue driv­
ing. Please contact Service
The brake pads are worn.
Drive to an authorized Aud i dealer or authorized
Aud i Service Facility as soon as possible to have
the malfunct ion corrected .
c:l:::, Engine control
II Drive system: malfunction! Please contact
Service
There is an engine control malfunction .
Drive slow ly to an author iz ed Audi dealer or au­
thor ized Audi Service Facility to have the eng ine
checked .
W Engine control (diesel engine )
Applies to: vehicles with diesel engines
The engine is preheating if the II indicato r light
turns on when the ignition is switched o n.
I f the indicator light does not turn on or b links
while driving , there is an eng ine control malfunc ­
tion .
Immediately drive slowly to an authori zed Aud i
dealer or authorized Aud i Serv ice Facility to have
the malfunction co rrected .
o Malfunction indicator lamp (MIL)
The malfunction indicato r lamp (MIL) is part of
the On -Board Diagnostic System (OBD II). The Cockpit overview
('4 ,;ymbol turns on when the
ignition is switched
on and turns off again once the engine is started
and running at a steady idle speed. This indicates
that the MIL is function ing correctly.
T he indicator light turns on if there is a malfunc­
tion in the engine electronics. See an authorized
Audi dealer or authorized Audi Service Fac ility to
have the malfunction corrected . For additional
information, see
c:::> page 24.
The indicator light can a lso turn on if the fuel fill­
er cap is not closed correctly
c:::> page 317.
,m,,
Diesel particulate filter
Applies to : vehicles wit h diesel eng ine a nd diesel particulate
filter
II Particulate filter : malfunction! See owner's
manual
T he diese l particulate filter requires regenera­
tion . To support the filter 's self-cleaning func­
tion:
Drive for approximately 15 minutes at a mini ­
mum of 37 mph (60 km/h) in 4th or 5th gear
(manua l transmission) or in the S selector lever
position (automatic transmission). Keep the en­
gine speed at approximately 2,000 RPM . The
temperature increase that will result from th is
can burn off the soot in the filter . The ind icator
light will turn off when the cleaning has complet­
ed successfully .
If the indicator light does not turn off, drive im­
med iate ly to an authori zed Audi dealer or author­
ized Audi Service Facility to have the malfunct ion
corrected .
A WARNING "---
Always adapt your speed to the current
weather, road and traffic conditions. You
should never disobey traffic laws in order to
follow driving recommendations .
@ Tips
For additional informat ion on the diesel par­
ticulate filter, see
c:::> page 322 .
33

Cockpit overview
!?i Engine speed limitation
(ill Maximum engine speed: XXXX rpm
The engine speed is automatically limited to the
speed displayed in the instrument cluster. This
protects the engine from overheating.
The engine speed limitation deactivates once the
engine is no longer in the critical temperature
range and you have released the accelerator ped­
al once.
If the engine speed limitation was activated by
an engine control malfunction, the
II indicator
light also turns on. Make sure the engine speed
does not go above the speed displayed, for exam­
ple when downshifting. Drive to an authorized
Audi dealer or authorized Audi Service Facility im­
mediately to have the malfunction corrected.
~ ;,,. Engine oil sensor
• Oil level system: malfunction! Please con­
tact Service
The sensor to check the engine oil level has
failed. Drive to an authorized Audi dealer or au­
thorized Audi Service Facility immediately to have
the malfunction corrected.
• Oil level sensor: oil change necessary. Please
contact Service
Fuel has entered the engine oil as a result of fre­
quent short drives. Avoid high engine speeds, full
acceleration and heavy engine loads. Drive to an
authorized Audi dealer or authorized Audi Service
Facility immediately to have the oil changed .
• Oil pressure sensor: malfunction! Please
contact Service
There is a malfunction in the oil pressure sensor.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.
f Engine warm-up request
0 Please warm up engine
Fuel has entered the engine oil, either from low
outside temperatures or frequent short drives.
34
Drive until the engine is warm so that the fuel in
the engine oil will evaporate. Avoid high engine speeds, full accelerating and heavy engine loads
when doing this.
Eli) Tank system
ID Please refuel
If the indicator light turns on for the first time
and the message appears, there are about 2.1
gallons (8 liters) of fuel left in the tank.
(jg Please refuel immediately
If the indicator light turns on the message ap­
pears, the fuel tank is almost empty. Refuel the
vehicle immediately.
ID Tank system: malfunction! Please contact
Service
Th ere is a malfunction in the fuel tank system.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.
{!) Tips
For more information on fueling, see
¢page 317 .
,_ Washer fluid level
m Please add washer fluid
Fill the washer fluid for the windshield washer
system and the headlight washer system* when
the ignition is switched
off¢ page 332.
· 1 Windshield wipers
II Windshield wipers: malfunction! Please con­
tact Service
There is a malfunction with the windshield wip­
ers.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the malfunction corrected.

a co .... N ,....
N .... 0 0
3 co
c::S Driver's door
II] Driver' s door: malfunction! Shift to P before
l e aving vehi cle. See own er's manual
There is a malfunction in the driver's door. Select
the P se lector lever position (automat ic transmis­
sion) to secure the vehicle.
Drive to an authori zed Aud i dealer or authorized
Aud i Service Facility immediately to have the
malfunct ion corrected .
-: Bulb failure indicator
If the II indica to r li ght turns on, a b ulb has
fa iled. The message ind icates the location of the
bu lb . Rep lace the b ulb immediately .
Vehicle lights: malfunction! Please c ont ac t
Servic e
There is a malfunction in the headlights or the
light switch . Drive to an authorized Audi dealer o r
author ized Audi Se rvice Facility immed iate ly to
h ave the ma lf u nction co rre cted.
_& WARNING
- Ligh t bul bs are under pressu re and can ex­
plode when bulbs are replaced, which in ­
creases the risk of injury.
- Wi th H ID headlights (xenon headlights), the
high -voltage component must be handled
correctly. Otherwise, there is a risk of fata l
injury.
{(D Dynamic headlight range control
II He adlight range cont rol: malfun ctio n! S ee
o w ner 's manual
There is a malfunction in the headlight range
control system, which may ca use glar e for other
drivers.
Drive to an authorized Audi dea ler o r a uthorized
Audi Servic e Facility immediately to have the
malfunct ion corr ected.
-
Coc kpit o ve rv iew
~O Audi adaptive light
Applies to: vehicles with Audi adaptive light
m;J Audi adapt ive light : malfun ction! See own­
er's manual
Adaptive light is not working . The headlights still
funct ion .
Drive to an au thorized Audi dealer or authorized
Audi Service Facility immed iately to have the
malfunction corrected .
@ Light/rain sensor
!;I Automatic headlights: ma lfunction! See
o wner' s manual
!;I Automati c wipers : malfunction ! See owner' s
manual
The light/rain sensor is malfunctioning.
The low beams remain switched on at a ll times
for safety reasons when the light switch is in the
AUTO position. However, you can continue to
turn the lights on and off using the light switch.
You can still contro l all functions that a re inde­
pendent of the rain sensor through the wind ­
shield wiper leve r.
Drive to an au thori zed Audi dealer or authori zed
Audi Service Facility immed iately to have the
malfunction corrected.
Q Suspension control
Applies to : vehicles with suspension control
II Su sp ension: malfunction! You may continue
drivin g
There is a suspension control malfunction .
Drive to an authorized Audi d eal er or authorized
Audi Service Facility immed iate ly to have the
malfunction correc ted.
r : All wheel drive/sport differential
Applies to: vehicles with all wheel drive/sport diffe rentia l
(II All-wh eel dri ve : malfun ction! You may con-
tinue driv ing. Pl ease contact Service
.,.
35

a co .... N ,....
N .... 0 0
3 co
Opening and closing
Central locking
Description
You can lock and unlock the veh icle centrally . You
have the following options:
-Remote control key¢ page 40,
-Sensors in the door handles* ¢ page 40,
-Lock cylinder on the driver's door c::> page 42,
or
-Interior central locking switch c::> page 41.
Turn signals
The turn s ignals flash twice when you unlock the
veh icle and flash once when you lock the veh icle.
If they do not flash, then one of the doors, the
rear lid or the hood is not closed.
Automatic locking (Auto Lock)
The Auto Lock funct ion locks all doors and the
luggage compartment lid once the speed has
ex­
ceeded approximately 9 mph (15 km/h).
The vehicle can be unlocked if the opening func­
tion in the central locking system sw itch is used
or one of the door handles is pulled.
In the event of a crash with airbag deployment,
the doors will a lso automat ically unlock to allow
access to the vehicle.
Selective door unlocking
The doors and luggage compartment lid will lock
when they close . You can set in the Infotainment
system whether
only the driver's door or the en­
tire vehicle should be unlocked when unlocking
c::> page 41.
Unintentionally locking yourself out
Only lock your vehicle when all of the doors and
the luggage compartment lid are closed and the remote control key is not in the vehicle . This
helps to prevent you from locking yourse lf out
accidentally .
The follow ing cond it ions prevent you from lock­
ing your remote control key in the vehicle:
Opening and closing
-If the driver's door is open, the vehicle cannot
be locked by pressing the
fi'.) button on the re­
mote contro l key or by touching the locking
sensor* on a door.
-If the most recently used convenience key* is
detected in the luggage compartment, the lug­
gage compartment lid automatically unlocks
again after closing it.
-If the convenience key* that was last used is de­
tected inside the vehicle, then the vehicle will
not be able to lock from the outside .
_& WARNING
---
-When you lock your vehicle from outs ide,
nobody- espec ially children
-should rema in
inside the vehicle. Remember, when you
loc k the vehicle from the outside the win­
dows cannot be opened from the inside .
- When you leave the vehicle, always take the
ignit ion key with yo u. This will prevent pas­
sengers (children, for examp le) from acci­
dentally being locked in the vehicle should
they accidentally press the power locking
switch in the doors.
- Do not leave children inside the vehicle
un­
supervised. In an emergency it would be im­
possible to open the doors from the outside
without the key.
(D Tips
-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 lights up for
approximately 30 seconds after locking,
there is a malfunction in the central locking
system. Have the problem corrected by an
authorized Audi dealer or authorized Audi
Service Facility.
37